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s-1313 series www.sii-ic.com super low current consumption low dropout cmos voltage regulator ? seiko instruments inc., 2011 rev.1.1 _00 seiko instruments inc. 1 s-1313 series, developed by using the cmos technology, is a positive voltage regulator ic which has the super low current consumption and the low dropout voltage. current consumption is as low as 0.9 a typ., and ceramic capacitor of 0.1 f or more can be used as the input and output capacitor. it also has high-accuracy output voltage of 1.0%. ? features ? output voltage: 1.0 v to 3.5 v, selectable in 0.05 v step. ? input voltage: 1.5 v to 5.5 v ? high-accuracy output voltage: 1.0% (1.0 v to 1.45 v output product : 15 mv) ? dropout voltage: 170 mv typ. (produc ts having the output of 2.8 v, i out = 100 ma) ? low current consumpti on: during operation : 0.9 a typ., 1.35 a max. during power-off : 0.1 a typ., 1.0 a max. ? high output current: possible to output 200 ma (at v out(s) 1.4 v, v in v out(s) + 1.0 v) *1 ? low equivalent series resistance c apacitor: a ceramic capacitor of 0.1 f or more can be used as the output capacitor. ? built-in overcurrent protection circuit: li mits overcurrent of output transistor. ? built-in thermal shutdown circ uit: prevents damage caused by heat. ? built-in on / off circuit: ensures long battery life. ? constant current source pull-down is selectable. ? discharge shunt circuit is selectable. ? lead-free (sn 100%), halogen-free *2 *1. attention should be paid to the power dissipation of the package when the out put current is large. *2. refer to ? ? product name structure ? for details. ? applications ? constant-voltage power supply for portable communication devices, digital cameras, and digital audio players ? constant-voltage power suppl y for battery-powered devices ? constant-voltage power supply for hom e electric / electronic appliances ? packages ? hsnt-4(0808) ? sot-23-5 ? sc-82ab
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 2 ? block diagrams 1. s-1313 series a type function status on / off logic active ?h? discharge shunt function available constant current source pull-down available vss on / off vin vout *1 *1 on / off circuit reference voltage circuit + ? overcurrent protection circuit thermal shutdown circuit *1. parasitic diode figure 1 2. s-1313 series b type function status on / off logic active ?h? discharge shunt function available constant current source pull-down none vss on / off vin vout *1 *1 on / off circuit reference voltage circuit + ? overcurrent protection circuit thermal shutdown circuit *1. parasitic diode figure 2
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 3 3. s-1313 series c type function status on / off logic active ?h? discharge shunt function none constant current source pull-down available vss on / off vin vout *1 on / off circuit reference voltage circuit + ? overcurrent protection circuit thermal shutdown circuit *1. parasitic diode figure 3 4. s-1313 series d type function status on / off logic active ?h? discharge shunt function none constant current source pull-down none vss on / off vin vout *1 on / off circuit reference voltage circuit + ? overcurrent protection circuit thermal shutdown circuit *1. parasitic diode figure 4
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 4 ? product name structure users can select the product type, output voltage, and package type for the s-1313 series. refer to ? 1. product name ? regarding the contents of product name, ? 2. function list of product type ? regarding the product type, ? 3. packages ? regarding the package drawings, ? 4. product name list ? regarding details of the product name. 1. product name s-1313 x xx ? xxxx u 3 product type *3 a to d package abbreviation and ic packing specifications *1 a4t1 : hsnt-4(0808), tape m5t1 : sot-23-5, tape n4t1 : sc-82ab, tape output voltage *2 10 to 35 (e.g., when the output voltage is 1.0 v, it is expressed as 10.) environmental code u : lead-free (sn 100%), halogen-free *1. refer to the tape specifications. *2. if you request the product which has 0.05 v step, contact our sales office. *3. refer to ? 2. function list of product type ?. 2. function list of product type table 1 product type on / off logic discharge shunt f unction constant current source pull-down a active ?h? available available b active ?h? available none c active ?h? none available d active ?h? none none 3. packages drawing code package name package tape reel land hsnt-4(0808) pk004-a-p-sd pk004-a- c-sd pk004-a-r-sd pk004-a-l-sd sot-23-5 mp005-a-p-sd mp005-a-c-sd mp005-a-r-sd ? sc-82ab np004-a-p-sd np004-a-c-sd np004-a-c-s1 np004-a-r-sd ?
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 5 4. product name list 4. 1 s-1313 series a type on / off logic : active ?h? discharge shunt function : available constant current source pull-down : available table 2 output voltage hsnt-4(0808) sot-23-5 sc-82ab 1.0 v 15 mv s-1313a10-a4t1u3 s-1313a10-m5t1u3 s-1313a10-n4t1u3 1.1 v 15 mv s-1313a11-a4t1u3 s-1313a11-m5t1u3 s-1313a11-n4t1u3 1.2 v 15 mv s-1313a12-a4t1u3 s-1313a12-m5t1u3 s-1313a12-n4t1u3 1.3 v 15 mv s-1313a13-a4t1u3 s-1313a13-m5t1u3 s-1313a13-n4t1u3 1.4 v 15 mv s-1313a14-a4t1u3 s-1313a14-m5t1u3 s-1313a14-n4t1u3 1.5 v 1.0% s-1313a15-a4t1u3 s-1313a15-m5t1u3 s-1313a15-n4t1u3 1.6 v 1.0% s-1313a16-a4t1u3 s-1313a16-m5t1u3 s-1313a16-n4t1u3 1.7 v 1.0% s-1313a17-a4t1u3 s-1313a17-m5t1u3 s-1313a17-n4t1u3 1.8 v 1.0% s-1313a18-a4t1u3 s-1313a18-m5t1u3 s-1313a18-n4t1u3 1.85 v 1.0% s-1313a1j-a4t1u3 s-1313a 1j-m5t1u3 s-1313a1j-n4t1u3 1.9 v 1.0% s-1313a19-a4t1u3 s-1313a19-m5t1u3 s-1313a19-n4t1u3 2.0 v 1.0% s-1313a20-a4t1u3 s-1313a20-m5t1u3 s-1313a20-n4t1u3 2.1 v 1.0% s-1313a21-a4t1u3 s-1313a21-m5t1u3 s-1313a21-n4t1u3 2.2 v 1.0% s-1313a22-a4t1u3 s-1313a22-m5t1u3 s-1313a22-n4t1u3 2.3 v 1.0% s-1313a23-a4t1u3 s-1313a23-m5t1u3 s-1313a23-n4t1u3 2.4 v 1.0% s-1313a24-a4t1u3 s-1313a24-m5t1u3 s-1313a24-n4t1u3 2.5 v 1.0% s-1313a25-a4t1u3 s-1313a25-m5t1u3 s-1313a25-n4t1u3 2.6 v 1.0% s-1313a26-a4t1u3 s-1313a26-m5t1u3 s-1313a26-n4t1u3 2.7 v 1.0% s-1313a27-a4t1u3 s-1313a27-m5t1u3 s-1313a27-n4t1u3 2.8 v 1.0% s-1313a28-a4t1u3 s-1313a28-m5t1u3 s-1313a28-n4t1u3 2.85 v 1.0% s-1313a2j-a4t1u3 s-1313a 2j-m5t1u3 s-1313a2j-n4t1u3 2.9 v 1.0% s-1313a29-a4t1u3 s-1313a29-m5t1u3 s-1313a29-n4t1u3 3.0 v 1.0% s-1313a30-a4t1u3 s-1313a30-m5t1u3 s-1313a30-n4t1u3 3.1 v 1.0% s-1313a31-a4t1u3 s-1313a31-m5t1u3 s-1313a31-n4t1u3 3.2 v 1.0% s-1313a32-a4t1u3 s-1313a32-m5t1u3 s-1313a32-n4t1u3 3.3 v 1.0% s-1313a33-a4t1u3 s-1313a33-m5t1u3 s-1313a33-n4t1u3 3.4 v 1.0% s-1313a34-a4t1u3 s-1313a34-m5t1u3 s-1313a34-n4t1u3 3.5 v 1.0% s-1313a35-a4t1u3 s-1313a35-m5t1u3 s-1313a35-n4t1u3 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 6 4. 2 s-1313 series b type on / off logic : active ?h? discharge shunt function : available cons tant current source pull-down : none table 3 output voltage hsnt-4(0808) sot-23-5 sc-82ab 1.0 v 15 mv s-1313b10-a4t1u3 s-1313b10-m5t1u3 s-1313b10-n4t1u3 1.1 v 15 mv s-1313b11-a4t1u3 s-1313b11-m5t1u3 s-1313b11-n4t1u3 1.2 v 15 mv s-1313b12-a4t1u3 s-1313b12-m5t1u3 s-1313b12-n4t1u3 1.3 v 15 mv s-1313b13-a4t1u3 S-1313B13-M5T1U3 s-1313b13-n4t1u3 1.4 v 15 mv s-1313b14-a4t1u3 s-1313b14-m5t1u3 s-1313b14-n4t1u3 1.5 v 1.0% s-1313b15-a4t1u3 s-1313b15-m5t1u3 s-1313b15-n4t1u3 1.6 v 1.0% s-1313b16-a4t1u3 s-1313b16-m5t1u3 s-1313b16-n4t1u3 1.7 v 1.0% s-1313b17-a4t1u3 s-1313b17-m5t1u3 s-1313b17-n4t1u3 1.8 v 1.0% s-1313b18-a4t1u3 s-1313b18-m5t1u3 s-1313b18-n4t1u3 1.85 v 1.0% s-1313b1j-a4t1u3 s-1313b 1j-m5t1u3 s-1313b1j-n4t1u3 1.9 v 1.0% s-1313b19-a4t1u3 s-1313b19-m5t1u3 s-1313b19-n4t1u3 2.0 v 1.0% s-1313b20-a4t1u3 s-1313b20-m5t1u3 s-1313b20-n4t1u3 2.1 v 1.0% s-1313b21-a4t1u3 s-1313b21-m5t1u3 s-1313b21-n4t1u3 2.2 v 1.0% s-1313b22-a4t1u3 s-1313b22-m5t1u3 s-1313b22-n4t1u3 2.3 v 1.0% s-1313b23-a4t1u3 s-1313b23-m5t1u3 s-1313b23-n4t1u3 2.4 v 1.0% s-1313b24-a4t1u3 s-1313b24-m5t1u3 s-1313b24-n4t1u3 2.5 v 1.0% s-1313b25-a4t1u3 s-1313b25-m5t1u3 s-1313b25-n4t1u3 2.6 v 1.0% s-1313b26-a4t1u3 s-1313b26-m5t1u3 s-1313b26-n4t1u3 2.7 v 1.0% s-1313b27-a4t1u3 s-1313b27-m5t1u3 s-1313b27-n4t1u3 2.8 v 1.0% s-1313b28-a4t1u3 s-1313b28-m5t1u3 s-1313b28-n4t1u3 2.85 v 1.0% s-1313b2j-a4t1u3 s-1313b 2j-m5t1u3 s-1313b2j-n4t1u3 2.9 v 1.0% s-1313b29-a4t1u3 s-1313b29-m5t1u3 s-1313b29-n4t1u3 3.0 v 1.0% s-1313b30-a4t1u3 s-1313b30-m5t1u3 s-1313b30-n4t1u3 3.1 v 1.0% s-1313b31-a4t1u3 s-1313b31-m5t1u3 s-1313b31-n4t1u3 3.2 v 1.0% s-1313b32-a4t1u3 s-1313b32-m5t1u3 s-1313b32-n4t1u3 3.3 v 1.0% s-1313b33-a4t1u3 s-1313b33-m5t1u3 s-1313b33-n4t1u3 3.4 v 1.0% s-1313b34-a4t1u3 s-1313b34-m5t1u3 s-1313b34-n4t1u3 3.5 v 1.0% s-1313b35-a4t1u3 s-1313b35-m5t1u3 s-1313b35-n4t1u3 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 7 4. 3 s-1313 series c type on / off logic : active ?h? discharge shunt function : none constant current source pull-down : available table 4 output voltage hsnt-4(0808) sot-23-5 sc-82ab 1.0 v 15 mv s-1313c10-a4t1u3 s-1313c10-m5t1u3 s-1313c10-n4t1u3 1.1 v 15 mv s-1313c11-a4t1u3 s-1313c11-m5t1u3 s-1313c11-n4t1u3 1.2 v 15 mv s-1313c12-a4t1u3 s-1313c12-m5t1u3 s-1313c12-n4t1u3 1.3 v 15 mv s-1313c13-a4t1u3 s-1313c13-m5t1u3 s-1313c13-n4t1u3 1.4 v 15 mv s-1313c14-a4t1u3 s-1313c14-m5t1u3 s-1313c14-n4t1u3 1.5 v 1.0% s-1313c15-a4t1u3 s-1313c15-m5t1u3 s-1313c15-n4t1u3 1.6 v 1.0% s-1313c16-a4t1u3 s-1313c16-m5t1u3 s-1313c16-n4t1u3 1.7 v 1.0% s-1313c17-a4t1u3 s-1313c17-m5t1u3 s-1313c17-n4t1u3 1.8 v 1.0% s-1313c18-a4t1u3 s-1313c18-m5t1u3 s-1313c18-n4t1u3 1.85 v 1.0% s-1313c1j-a4t1u3 s-1313c1j-m5t1u3 s-1313c1j-n4t1u3 1.9 v 1.0% s-1313c19-a4t1u3 s-1313c19-m5t1u3 s-1313c19-n4t1u3 2.0 v 1.0% s-1313c20-a4t1u3 s-1313c20-m5t1u3 s-1313c20-n4t1u3 2.1 v 1.0% s-1313c21-a4t1u3 s-1313c21-m5t1u3 s-1313c21-n4t1u3 2.2 v 1.0% s-1313c22-a4t1u3 s-1313c22-m5t1u3 s-1313c22-n4t1u3 2.3 v 1.0% s-1313c23-a4t1u3 s-1313c23-m5t1u3 s-1313c23-n4t1u3 2.4 v 1.0% s-1313c24-a4t1u3 s-1313c24-m5t1u3 s-1313c24-n4t1u3 2.5 v 1.0% s-1313c25-a4t1u3 s-1313c25-m5t1u3 s-1313c25-n4t1u3 2.6 v 1.0% s-1313c26-a4t1u3 s-1313c26-m5t1u3 s-1313c26-n4t1u3 2.7 v 1.0% s-1313c27-a4t1u3 s-1313c27-m5t1u3 s-1313c27-n4t1u3 2.8 v 1.0% s-1313c28-a4t1u3 s-1313c28-m5t1u3 s-1313c28-n4t1u3 2.85 v 1.0% s-1313c2j-a4t1u3 s-1313c2j-m5t1u3 s-1313c2j-n4t1u3 2.9 v 1.0% s-1313c29-a4t1u3 s-1313c29-m5t1u3 s-1313c29-n4t1u3 3.0 v 1.0% s-1313c30-a4t1u3 s-1313c30-m5t1u3 s-1313c30-n4t1u3 3.1 v 1.0% s-1313c31-a4t1u3 s-1313c31-m5t1u3 s-1313c31-n4t1u3 3.2 v 1.0% s-1313c32-a4t1u3 s-1313c32-m5t1u3 s-1313c32-n4t1u3 3.3 v 1.0% s-1313c33-a4t1u3 s-1313c33-m5t1u3 s-1313c33-n4t1u3 3.4 v 1.0% s-1313c34-a4t1u3 s-1313c34-m5t1u3 s-1313c34-n4t1u3 3.5 v 1.0% s-1313c35-a4t1u3 s-1313c35-m5t1u3 s-1313c35-n4t1u3 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 8 4. 4 s-1313 series d type on / off logic : active ?h? discharge shunt function : none constant current source pull-down : none table 5 output voltage hsnt-4(0808) sot-23-5 sc-82ab 1.0 v 15 mv s-1313d10-a4t1u3 s-1313d10-m5t1u3 s-1313d10-n4t1u3 1.1 v 15 mv s-1313d11-a4t1u3 s-1313d11-m5t1u3 s-1313d11-n4t1u3 1.2 v 15 mv s-1313d12-a4t1u3 s-1313d12-m5t1u3 s-1313d12-n4t1u3 1.3 v 15 mv s-1313d13-a4t1u3 s-1313d13-m5t1u3 s-1313d13-n4t1u3 1.4 v 15 mv s-1313d14-a4t1u3 s-1313d14-m5t1u3 s-1313d14-n4t1u3 1.5 v 1.0% s-1313d15-a4t1u3 s-1313d15-m5t1u3 s-1313d15-n4t1u3 1.6 v 1.0% s-1313d16-a4t1u3 s-1313d16-m5t1u3 s-1313d16-n4t1u3 1.7 v 1.0% s-1313d17-a4t1u3 s-1313d17-m5t1u3 s-1313d17-n4t1u3 1.8 v 1.0% s-1313d18-a4t1u3 s-1313d18-m5t1u3 s-1313d18-n4t1u3 1.85 v 1.0% s-1313d1j-a4t1u3 s-1313d1j-m5t1u3 s-1313d1j-n4t1u3 1.9 v 1.0% s-1313d19-a4t1u3 s-1313d19-m5t1u3 s-1313d19-n4t1u3 2.0 v 1.0% s-1313d20-a4t1u3 s-1313d20-m5t1u3 s-1313d20-n4t1u3 2.1 v 1.0% s-1313d21-a4t1u3 s-1313d21-m5t1u3 s-1313d21-n4t1u3 2.2 v 1.0% s-1313d22-a4t1u3 s-1313d22-m5t1u3 s-1313d22-n4t1u3 2.3 v 1.0% s-1313d23-a4t1u3 s-1313d23-m5t1u3 s-1313d23-n4t1u3 2.4 v 1.0% s-1313d24-a4t1u3 s-1313d24-m5t1u3 s-1313d24-n4t1u3 2.5 v 1.0% s-1313d25-a4t1u3 s-1313d25-m5t1u3 s-1313d25-n4t1u3 2.6 v 1.0% s-1313d26-a4t1u3 s-1313d26-m5t1u3 s-1313d26-n4t1u3 2.7 v 1.0% s-1313d27-a4t1u3 s-1313d27-m5t1u3 s-1313d27-n4t1u3 2.8 v 1.0% s-1313d28-a4t1u3 s-1313d28-m5t1u3 s-1313d28-n4t1u3 2.85 v 1.0% s-1313d2j-a4t1u3 s-1313d2j-m5t1u3 s-1313d2j-n4t1u3 2.9 v 1.0% s-1313d29-a4t1u3 s-1313d29-m5t1u3 s-1313d29-n4t1u3 3.0 v 1.0% s-1313d30-a4t1u3 s-1313d30-m5t1u3 s-1313d30-n4t1u3 3.1 v 1.0% s-1313d31-a4t1u3 s-1313d31-m5t1u3 s-1313d31-n4t1u3 3.2 v 1.0% s-1313d32-a4t1u3 s-1313d32-m5t1u3 s-1313d32-n4t1u3 3.3 v 1.0% s-1313d33-a4t1u3 s-1313d33-m5t1u3 s-1313d33-n4t1u3 3.4 v 1.0% s-1313d34-a4t1u3 s-1313d34-m5t1u3 s-1313d34-n4t1u3 3.5 v 1.0% s-1313d35-a4t1u3 s-1313d35-m5t1u3 s-1313d35-n4t1u3 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 9 ? pin configurations 1. hsnt-4(0808) table 6 pin no. symbol description 1 vout output voltage pin 2 vss gnd pin 3 on / off on / off pin 4 vin input voltage pin *1. connect the heatsink of backside at shadowed area to the board, and set electric potential open or gnd. however, do not use it as the function of electrode. hsnt-4(0808) top view 4 3 1 2 bottom view 3 4 2 1 *1 figure 5 2. sot-23-5 table 7 pin no. symbol description 1 vin input voltage pin 2 vss gnd pin 3 on / off on / off pin 4 nc *1 no connection 5 vout output voltage pin 5 4 1 3 2 sot-23-5 top view *1. the nc pin is electrically open. the nc pin can be connected to vin or vss. figure 6
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 10 3. sc-82ab table 8 pin no. symbol description 1 on / off on / off pin 2 vss gnd pin 3 vout output voltage pin 4 vin input voltage pin 4 3 1 2 sc-82ab top view figure 7
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 11 ? absolute maximum ratings table 9 (ta = +25 c unless otherwise specified) item symbol absolute maximum rating unit v in v ss ? 0.3 to v ss + 6.0 v input voltage v on / off v ss ? 0.3 to v ss + 6.0 v output voltage v out v ss ? 0.3 to v in + 0.3 v output current i out 240 ma hsnt-4(0808) 335 *1 mw sot-23-5 600 *1 mw power dissipation sc-82ab p d 400 *1 mw operating ambient temperature t opr ? 40 to + 85 c storage ambient temperature t stg ? 40 to + 125 c *1. when mounted on board [mounted board] (1) board size : 114.3 mm 76.2 mm t1.6 mm (2) name : jedec standard51-7 caution the absolute maximum ra tings are rated values exceeding whic h the product could suffer physical damage. these values must therefore not be exceeded under any conditions. 0 50 100 150 0 power dissipation (p d ) [mw] ambient temperature (ta) [ c] 400 200 600 1000 800 1200 sot-23-5 sc-82ab hsnt-4(0808) figure 8 power dissipation of package (when mounted on board)
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 12 power dissipation of hsnt-4(0808) (reference) power dissipation of package differs depending on the mounting conditions. consider the power dissipation characteristics under the following conditions as reference. [mounted board] (1) board size : 40 mm 40 mm t0.8 mm (2) board material : glass epoxy resin (four layers) (3) wiring ratio : 50% (4) test conditions : when mounted on board (wind speed : 0 m / s) (5) land pattern : refer to the recommended land pattern (drawing code : pk004-a-l-sd) 0 50 100 150 0 power dissipation (p d ) [mw] ambient temperature (ta) [ c] 400 200 600 1000 800 1200 figure 9 power dissipation of package (when mounted on board) table 10 condition power dissipation (reference) thermal resistance value ( j ? a) hsnt-4(0808) (when mounted on board) 850 mw 117 c / w
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 13 ? electrical characteristics table 11 (1 / 2) (ta = +25 c unless otherwise specified) item symbol conditions min. typ. max. unit test circuit 1.0 v v out(s) < 1.5 v v out(s) ? 0.015 v out(s) v out(s) + 0.015 v 1 output voltage *1 v out(e) v in = v out(s) + 1.0 v, i out = 30 ma 1.5 v v out(s) 3.5 v v out(s) 0.99 v out(s) v out(s) 1.01 v 1 1.0 v v out(s) < 1.1 v 100 *5 ? ? ma 3 1.1 v v out(s) < 1.2 v 125 *5 ? ? ma 3 1.2 v v out(s) < 1.3 v 150 *5 ? ? ma 3 1.3 v v out(s) < 1.4 v 175 *5 ? ? ma 3 output current *2 i out v in v out(s) + 1.0 v 1.4 v v out(s) 3.5 v 200 *5 ? ? ma 3 1.0 v v out(s) < 1.1 v 0.50 0.76 1.55 v 1 1.1 v v out(s) < 1.2 v ? 0.67 1.39 v 1 1.2 v v out(s) < 1.3 v ? 0.58 1.25 v 1 1.3 v v out(s) < 1.4 v ? 0.49 1.11 v 1 1.4 v v out(s) < 1.5 v ? 0.43 0.99 v 1 1.5 v v out(s) < 1.7 v ? 0.37 0.85 v 1 1.7 v v out(s) < 1.8 v ? 0.31 0.68 v 1 1.8 v v out(s) < 2.0 v ? 0.27 0.58 v 1 2.0 v v out(s) < 2.5 v ? 0.23 0.49 v 1 2.5 v v out(s) < 2.8 v ? 0.18 0.38 v 1 2.8 v v out(s) < 3.0 v ? 0.17 0.33 v 1 dropout voltage *3 v drop i out = 100 ma 3.0 v v out(s) 3.5 v ? 0.16 0.32 v 1 v out(s) + 0.5 v v in 5.5 v, i out = 1 a 1.0 v v out(s) 3.5 v ? 0.05 0.2 %/v 1 1.0 v v out(s) < 1.1 v ? 0.07 2.0 %/v 1 1.1 v v out(s) < 1.2 v ? 0.06 1.0 %/v 1 line regulation outin out1 vv v ? v out(s) + 0.5 v v in 5.5 v, i out = 30 ma 1.2 v v out(s) 3.5 v ? 0.05 0.2 %/v 1 v in = v out(s) + 1.0 v, 1 a i out 100 ma 1.0 v v out(s) 3.5 v ? 20 40 mv 1 1.0 v v out(s) < 1.1 v ? 40 640 mv 1 1.1 v v out(s) < 1.2 v ? 40 400 mv 1 1.2 v v out(s) < 1.3 v ? 40 160 mv 1 1.3 v v out(s) < 1.4 v ? 40 80 mv 1 load regulation v out2 v in = v out(s) + 1.0 v, 100 a i out 200 ma 1.4 v v out(s) 3.5 v ? 40 80 mv 1 output voltage temperature coefficient *4 out out vta v ? v in = v out(s) + 1.0 v, i out = 30 ma, ? 40 c ta + 85 c ? 130 ? ppm/ c1 current consumption during operation i ss1 v in = v out(s) + 1.0 v, on / off pin = on, no load ? 0.9 1.35 a 2 current consumption during power-off i ss2 v in = v out(s) + 1.0 v, on / off pin = off, no load ? 0.1 1.0 a 2 input voltage v in ? 1.5 ? 5.5 v ? on / off pin input voltage ?h? v sh v in = v out(s) + 1.0 v, r l = 1.0 k determined by v out output level 1.0 ? ? v 4 on / off pin input voltage ?l? v sl v in = v out(s) + 1.0 v, r l = 1.0 k determined by v out output level ? ? 0.25 v 4 b / d type ? 0.1 ? 0.1 a 4 on / off pin input current ?h? i sh v in = 5.5 v, v on / off = 5.5 v a / c type 0.05 0.1 0.2 a 4 on / off pin input current ?l? i sl v in = 5.5 v, v on / off = 0 v ? 0.1 ? 0.1 a 4 short-circuit current i short v in = v out(s) + 1.0 v, on / off pin = on, v out = 0 v ? 50 ? ma 3 thermal shutdown detection temperature t sd junction temperature ? 150 ? c ? thermal shutdown release temperature t sr junction temperature ? 120 ? c ?
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 14 table 11 (2 / 2) s-1313 series a / b types (with discharge shunt function) item symbol conditions min. typ. max. unit test circuit ?l? output nch on resistance r low v out = 0.1 v, v in = 5.5 v ? 35 ? 3 s-1313 series a / c types (constant current source pull-down) item symbol conditions min. typ. max. unit test circuit constant current source power-off pull-down i shpd v in = 5.5 v, v on / off = 5.5 v 0.05 0.10 0.20 a 4 *1. v out(s) : specified output voltage v out(e) : actual output voltage output voltage when fixing i out ( = 30 ma) and inputting v out(s) + 1.0 v *2. the output current at which t he output voltage becomes 95% of v out(e) after gradually increasing the output current. *3. v drop = v in1 ? (v out3 0.98) v out3 is the output voltage when v in = v out(s) + 1.0 v and i out = 100 ma. v in1 is the input voltage at which the output voltage becomes 98% of v out3 after gradually decreasing the input voltage. *4. the change in temperature [mv/c] is calculated using the following equation. v out ta [] mv/c *1 = v out(s) [] v *2 v out ta ?v out [] ppm/c *3 1000 *1. change in temperature of the output voltage *2. specified output voltage *3. output voltage temperature coefficient *5. the output current can be at least this value. due to restrictions on the package power dissipation, this value may not be sati sfied. attention s hould be paid to the power dissipation of the package w hen the output current is large. this specification is guaranteed by design.
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 15 ? test circuits + vout vin vss + v a on / off set to power on figure 10 test circuit 1 vout vin set to v in or gnd + a on / off vss figure 11 test circuit 2 set to power on vout vin + v + a on / off vss figure 12 test circuit 3 vout vin + v on / off vss + a r l figure 13 test circuit 4 vout vin + v on / off vss r l set to power on figure 14 test circuit 5
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 16 ? standard circuit c in *1 c l *2 input output gnd single gnd vout vin vss on / off *1. c in is a capacitor for stabilizing the input. *2. ceramic capacitor of 0.1 f or more can be used as c l . figure 15 caution the above connection diag ram and constant will not guara ntee successful operation. perform thorough evaluation using the actual application to set the constant. ? condition of application input capacitor (c in ) : 0.1 f or more output capacitor (c l ) : 0.1 f or more (ceramic capacitor) caution a general series regulator may oscillate, depending on the external components. confirm that no oscillation occurs in the application for which the above capacitors are used. ? selection of input and output capacitors (c in , c l ) the s-1313 series requires an output c apacitor between the vout and vss pin fo r phase compensation. operation is stabilized by a ceramic capacitor with an output c apacitance of 0.1 f or more over the entire temperature range. when using an os capacitor, tantalum c apacitor, or aluminum electrolytic capacitor, the capacitance must be 0.1 f or more. the value of the output overshoot or undershoot transi ent response varies depending on the value of the output capacitor. the required capacitance of the input capacitor differs depending on the application. the recommended capacitance for an application is c in 0.1 f, c l 0.1 f; however, when selecting the output capacitor, perform sufficient evaluation, including evaluation of temperature characteristics, on the actual device.
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 17 ? explanation of terms 1. low dropout voltage regulator this ic?s voltage regulator has t he low dropout voltage due to its built -in low on-resistance transistor. 2. output voltage (v out ) the accuracy of the output voltage is ensured at 1.0% or 15 mv *1 under the specified condi tions of fixed input voltage *2 , fixed output current, and fixed temperature. *1. when v out < 1.5 v : 15 mv, when v out 1.5 v : 1.0% *2. differs depending on the product. caution if the above conditions ch ange, the output voltage value may vary and exceed the accuracy range of the output voltage. refer to ? ? electrical characteristics? and ? ? characteristics (typical data)? for details. 3. line regulation ? ? ? ? v out1 v in ? v out indicates the dependency of the out put voltage on the input volt age. that is, the values show how much the output voltage changes due to a change in the input volt age with the output curr ent remaining unchanged. 4. load regulation ( v out2 ) indicates the dependency of the out put voltage on the output curr ent. that is, the values show how much the output voltage changes due to a change in the output current with the input voltage remaining unchanged. 5. dropout voltage (v drop ) indicates the differenc e between input voltage v in and the output voltage when; decreasing input voltage v in gradually until the output voltage has dropped out to the value of 98% of output voltage v out3 , which is at v in = v out(s) + 1.0 v. v drop = v in1 ? (v out3 0.98)
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 18 6. temperature coefficient of output voltage ? ? ? ? v out ta ? v out the shaded area in figure 16 is the range where v out varies in the operating temper ature range when the temperature coefficient of the output voltage is 130 ppm/ c. v out(e) *1 example of s-1313a10 typ. products ? 40 + 25 + 0.13 mv/ c v out [v] *1. v out(e) is the value of the output voltage measured at + 25 c. + 85 ta [ c] ? 0.13mv/ c figure 16 a change in the temperature of the output voltage [mv/c] is calculated using the following equation. v out ta [] mv/c *1 = v out(s) [] v *2 v out ta ?v out [] ppm/c *3 1000 *1. change in temperature of output voltage *2. specified output voltage *3. output voltage temperature coefficient
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 19 ? operation 1. basic operation figure 17 shows the block diagram of s-1313 series. the error amplifier compares the reference voltage (v ref ) with feedback voltage (v fb ), which is the output voltage resistance-divided by feedback resistors (r s and r f ). it supplies the gate voltage necessary to maintain the constant output voltage which is not influenced by the input vo ltage and temperature change, to the output transistor. *1 *1 . parasitic diode vss current supply ? + v fb v ref vin vout r f r s error amplifier reference voltage circuit figure 17 2. output transistor in the s-1313 series, a low on-resistance p-channel mos fet is used as the output transistor. be sure that v out does not exceed v in + 0.3 v to prevent the voltage regulator from being damaged due to inverse current flowing from the vout pin through a parasitic diode to the vin pin.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 20 3. on / off pin this pin starts and stops the regulator. when the on / off pin is set to the power-off level, the entire internal circuit stops operating, and the built-in p- channel mos fet output transistor betw een the vin and vout pins is turned off, reducing current consumption significantly. note that the current c onsumption increases when a voltage of 0.25 v to v in ? 0.3 v is applied to the on / off pin. the on / off pin is configured as shown in figures 18 and 19 . 3. 1 s-1313 series a / c types the on / off pin is internally pulled down to vss by cons tant current source, so the vout pin is set to the v ss level in the floating status. for the on / off pin current, re fer to the a / c type of on / off pin input current ?h? in ?? electrical characteristics ?. 3. 2 s-1313 series b / d types do not use the on / off pin in the fl oating state because this pin is inter nally not pulled up or pulled down. when not using the on / off pin, c onnect the pin to the vin pin. table 12 product type on / off pin internal circuit s vout pin voltage current consumption a / b / c / d ?h? : power-on operate set value i ss1 *1 a / b / c / d ?l? : power-off stop v ss level i ss2 *1 . ic?s current consumption increases as much as current flows into the constant current s ource when the on / off pin is connected to vin and the s- 1313 series a / c types is operating ( figure 18 ). vss vin on / off vss vin on / off figure 18 s-1313 series a / c types figure 19 s-1313 series b / d types
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 21 4. discharge shunt function (s-1313 series a / b types) the s-1313 series a / b types have built-in discharge shunt circuits to discharge the out put capacitance. the output capacitance is discharged as follows so that the vout pin reaches the v ss level. (1) the on / off pin is set to power-off level. (2) the output transistor is turned off. (3) the discharge shunt circuit is turned on. (4) the output capacitor discharges since the s-1313 series c / d types do no have dischar ge shunt circuits, the vout pin is set to v ss level through several hundred k internal divided resistors between the vout and vss pins. the s-1313 series a / b types allow for the vout pin reach the v ss level rapidly due to the discharge shunt circuits. output transistor : off on / off pin : power-off vin on / off vss on / off circuit discharge shunt function : on vout *1 *1. parasitic diode current flow gnd *1 s-1313 series output capacitance (c l ) figure 20 5. constant current source pull-down (s-1313 series a / c types) in the s-1313 series a / c types, the on / off pin is inte rnally pulled down to vss, so the vout pin is in the v ss level when in the floating status. ic?s current consumption increases as much as 0.1 a typ. of the constant current source when the on / off pin is connected to vin and the s-1313 seri es a / c types is operating.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 22 6. overcurrent protection circuit the s-1313 series has an overcurr ent protection circuit having t he characteristics shown in ? 1. output voltage vs. output current (when load current increases) (ta = +25 c) ? in ?? characteristics (typical data) ?, in order to protect the output transistor against an excessive output current and short ci rcuiting between the vout and vss pins. the current (i short ) when the output pin is short-circui ted is internally set at approx. 50 ma typ., and the normal value is restored for the output voltage, if releasing a short circuit once. caution using the overcurrent protecti on circuit is to protect the output tr ansistor from accidental conditions such as short circuited load and the rapid and large current flow in the large capacitor. the overcurrent protection circuit is not suitable for use under the short circuit status or large current flowing (240 ma or more) that lasts long. 7. thermal shutdown circuit the s-1313 series has a thermal shutdown circuit to protect the device from dam age due to overheat. when the junction temperature rises to 150 c typ., the thermal shutdown circuit operat es to stop regulati ng. when the junction temperature drops to 120 c typ., the thermal shutdown circuit is released to restart regulating. due to self-heating of the s-1313 series, if the thermal shutdown circui t starts operating, it stops regulating so that the output voltage drops. when r egulation stops, the s-1313 series does not itself generate heat and the ic?s temperature drops. when the tem perature drops, the thermal shutdown circuit is released to restart regulating, thus this ic generates heat again. repeating this procedure makes the waveform of the output voltage into a pulse-like form. stop or restart of regulation continues unless decreasing either both of the input voltage and the output voltage in order to reduce the internal current consumption, or decreasing the ambient temperature. table 13 thermal shutdown circuit vout pin voltage operate : 150 c typ. *1 v ss level release : 120 c typ. *1 set value *1. junction temperature 8. thermal shutdown circuit stop function the 1313 series has a thermal shutdown circ uit stop function during low load current. when the load current is approxim ately 0.2 ma typ. or less, the current that flows in t he thermal shutdown circuit is stopped and the thermal shutdown circuit st ops operating. this makes the super low current consumption operation possible. when the load current is approxim ately 0.5 ma typ. or more, a current is applied to the thermal shutdown circuit, thus making the protect operation possible. 0 0 i out [ma] 7.0 6.0 5.0 4.0 3.0 2.0 1.0 3.0 2.0 2.5 1.5 1.0 0.5 i ss1 [a] thermal shutdown circuit operating operation at super low current consumption figure 21
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 23 ? precautions ? wiring patterns for the vin, vout and gnd pins should be designed so that the impedance is low. when mounting an output capacitor between the vout and vss pins (c l ) and the capacitor for stabilizi ng the input bet ween the vin and vss pins (c in ), the distance from the capacitors to t hese pins should be as short as possible. ? note that the output voltage may increase when a se ries regulator is used at low load current (10 a or less). ? note that the output voltage may increase due to the leakage cu rrent from a driver when a se ries regulator is used at high temperature. ? note that the output voltage may increase due to the leakage cu rrent from a driver even if the on / off pin is at the power-off level when a series regulator is used at a high temperature. ? generally a series regulator may cause oscillation, depending on the selecti on of external parts. the following conditions are recommended for this ic. however, be sure to perform sufficient evaluation under the actual usage conditions for selection, including evaluation of temperature characteristics. see ? 5. example of equivalent series resistance vs. output current characteristics (ta = +25 c) ? in ? ? reference data ? for the equivalent series resistance (r esr ) of the output capacitor. input capacitor (c in ) : 0.1 f or more output capacitor (c l ) : 0.1 f or more ? the voltage regulator may oscillate w hen the impedance of the power supply is high and the input capacitor is small or an input capacitor is not connected. ? ringing may occur when these three conditions below are satisfied. before selecting an input capacitor, be sure to evaluate sufficiently under the actual usage conditi ons, including the temperature characteristics. the power supply inductance is high. the load current is 100 ma or more. the difference between the input voltage and the output voltage is close to the value of dropout voltage. ? if the output capacitance is small, power supply?s fluctuati on and the characteristics of load fluctuation become worse. sufficiently evaluate the output voltage?s fluctuation with the actual device. ? a momentary overshoot may be output when the power supply suddenly increases, and the output capacitance is small. it is therefore important to sufficiently evaluate the output voltage at power application in actual device. ? the application conditions for the input voltage, output voltage, and load current should not exceed the package power dissipation. ? do not apply an electrostatic discharge to this ic that ex ceeds the performance ratings of the built-in electrostatic protection circuit. ? in determining the output current, attention should be paid to the output current value specified in table 11 in ? ? electrical characteristics ? and footnote *5 of the table. ? sii claims no responsibility for any dis putes arising out of or in connection with any infringement by products including this ic of patents owned by a third party.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 24 ? characteristics (typical data) 1. output voltage vs. output current (when load current increases) (ta = +25c) 1. 1 v out = 1.0 v 1. 2 v out = 2.5 v 0 v out [v] 0 i out [ma] 1.2 500 400 300 200 100 1.0 0.8 0.6 0.4 0.2 v in = 1.3 v 2.0 v 3.0 v 5.5 v 1.5 v 0 v out [v] 0 i out [ma] 3.0 500 400 300 200 100 2.5 2.0 1.5 1.0 0.5 v in = 2.8 v 3.0 v 3.5 v 4.5 v 5.5 v 1. 3 v out = 3.5 v 0 v out [v] 0 i out [ma] 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 500 400 300 200 100 v in = 3.8 v 4.0 v 4.5 v 5.5 v remark in determining the output current, attention should be paid to the following. 1. the minimum output current value and footnote *5 in table 11 in the ? ? electrical characteristics ? 2. the package power dissipation 2. output voltage vs. input voltage (ta = +25c) 2. 1 v out = 1.0 v 2. 2 v out = 2.5 v 0.6 v out [v] 0.6 v in [v] 1.2 2.62.21.81.41.0 1.1 1.0 0.9 0.8 0.7 i out = 1 ma i out = 50 ma i out = 30 ma i out = 100 ma 2.0 v out [v] 2.0 v in [v] 2.7 2.6 2.5 2.4 2.3 2.2 2.1 4.54.03.53.02.5 i out = 1 ma i out = 50 ma i out = 30 ma i out = 100 ma 2. 3 v out = 3.5 v 3.0 v out [v] 3.0 v in [v] 3.7 3.6 3.5 3.4 3.3 3.2 3.1 5.55.04.54.03.5 i out = 1 ma i out = 50 ma i out = 30 ma i out = 100 ma
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 25 3. dropout voltage vs. output current 3. 1 v out = 1.0 v 3. 2 v out = 2.5 v 0 v drop [v] 0 i out [ma] 1.4 200 1.2 1.0 0.8 0.6 0.4 0.2 175150125100755025 ta = + 25 c ta = + 85 c ta = ?40c 0 v drop [v] 0 i out [ma] 0.50 200 175150125100755025 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 ta = +85 c ta = + 25 c ta = ?40c 3. 3 v out = 3.5 v 0 v drop [v] 0 i out [ma] 0.50 200 175150125100755025 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 ta = +85 c ta = + 25 c ta = ?40c 4. dropout voltage vs. set output voltage 1.0 2.0 2.5 v drop [v] 1.2 v out [v] 1.5 3.0 3.5 1.0 0.8 0.6 0.4 0.2 0 30 ma i out = 200 ma 100 ma 50 ma 10 ma 1 ma 0.1 ma
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 26 5. output voltage vs. ambient temperature 5. 1 v out = 1.0 v 5. 2 v out = 2.5 v ? 40 0 255075 v out [v] 1.10 1.00 0.95 0.90 ta [c] 1.05 ?25 85 ? 40 0 255075 v out [v] 2.7 2.5 2.4 2.3 ta [c] 2.6 ?25 85 5. 3 v out = 3.5 v ? 40 0 255075 v out [v] 3.8 3.2 ta [c] ?25 85 3.7 3.6 3.5 3.4 3.3 6. current consumption vs. input voltage 6. 1 v out = 1.0 v 6. 2 v out = 2.5 v 024 0 3 1 1.4 56 1.2 1.0 0.8 0.6 0.4 0.2 i ss1 [a] v in [v] +25 c ?40 c ta = + 85 c 024 3 156 i ss1 [a] v in [v] 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 +25 c ?40 c ta = + 85 c 6. 3 v out = 3.5 v 024 3 156 i ss1 [a] v in [v] 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 +25 c ?40 c ta = + 85 c
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 27 7. current consumption vs. ambient temperature 7. 1 v out = 1.0 v 7. 2 v out = 2.5 v ? 40 0 255075 ta [c] ?25 85 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 i ss1 [a] v in = 2.0 v 5.5 v ? 40 0 255075 ta [c] ?25 85 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 i ss1 [a] v in = 3.5 v 5.5 v 7. 3 v out = 3.5 v ? 40 0 255075 ta [c] ?25 85 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 i ss1 [a] v in = 4.5 v 5.5 v 8. current consumption vs. output current 8. 1 v out = 1.0 v 8. 2 v out = 2.5 v 0 0 i out [ma] 40 35 30 25 20 15 10 5 200 160 1208040 i ss1 [a] v in = 2.0 v 5.5 v 0 0 i out [ma] 40 35 30 25 20 15 10 5 200 160 1208040 i ss1 [a] v in = 3.5 v 5.5 v 8. 3 v out = 3.5 v 0 0 i out [ma] 40 35 30 25 20 15 10 5 200 160 1208040 i ss1 [a] v in = 4.5 v 5.5 v
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 28 ? reference data 1. transient response characteristics when input (ta = +25c) 1. 1 v out = 1.0 v i out = 1 ma, tr = tf = 5.0 s, c in = c l = 0.1 f v out [v] 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 t [ s] v in [v] 4.0 3.0 2.5 2.0 0 0.5 1.0 1.5 3.5 ?20 80 120 0 20 40 60 100 140 ?40 v out v in i out = 100 ma, tr = tf = 5.0 s, c in = c l = 0.1 f v out [v] 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 t [ s] v in [v] 4.0 3.0 2.5 2.0 0 0.5 1.0 1.5 3.5 ?20 80 120 0 20 40 60 100 140 ?40 v out v in 1. 2 v out = 2.5 v i out = 1 ma, tr = tf = 5.0 s, c in = c l = 0.1 f v out [v] 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 t [ s] v in [v] 5.5 4.5 4.0 3.5 1.5 2.0 2.5 3.0 5.0 ?20 80 120 0 20 40 60 100 140 ?40 v out v in i out = 100 ma, tr = tf = 5.0 s, c in = c l = 0.1 f v out [v] 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 t [ s] v in [v] 5.5 4.5 4.0 3.5 1.5 2.0 2.5 3.0 5.0 ?20 80 120 0 20 40 60 100 140 ?40 v out v in 1. 3 v out = 3.5 v i out = 1 ma, tr = tf = 5.0 s, c in = c l = 0.1 f v out [v] 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 t [ s] v in [v] 6.5 5.5 5.0 4.5 2.5 3.0 3.5 4.0 6.0 ?20 80 120 0 20 40 60 100 140 ?40 v out v in i out = 100 ma, tr = tf = 5.0 s, c in = c l = 0.1 f v out [v] 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 t [ s] v in [v] 6.5 5.5 5.0 4.5 2.5 3.0 3.5 4.0 6.0 ?20 80 120 0 20 40 60 100 140 ?40 v out v in
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 29 2. transient response characteristics of load (ta = +25c) 2. 1 v out = 1.0 v v in = 2.0 v, c in = c l = 0.1 f, i out = 1 ? 50 ma v out [v] 2.6 0.2 0.6 1.0 1.4 1.8 2.2 t [ s] i out [ma] 100 ?200 6005004003002001000 ?100 ?200 ?150 ?100 ?50 0 50 v out i out v in = 2.0 v, c in = c l = 0.1 f, i out = 50 ? 100 ma v out [v] 2.6 0.2 0.6 1.0 1.4 1.8 2.2 t [ s] i out [ma] 150 ?150 300250200150100500 ?50 ?100 ?100 ?50 0 50 100 v out i out 2. 2 v out = 2.5 v v in = 3.5 v, c in = c l = 0.1 f, i out = 1 ? 50 ma v out [v] t [ms] ?0.2 0.8 1.2 0 0.2 0.4 0.6 1 1.4 ?0.4 4.9 1.3 1.9 2.5 3.1 3.7 4.3 i out [ma] 100 ?200 ?150 ?100 ?50 0 50 v out i out v in = 3.5 v, c in = c l = 0.1 f, i out = 50 ? 100 ma v out [v] t [ s] ?100 400 600 0 100 200 300 500 700 ?200 3.7 1.9 2.2 2.5 2.8 3.1 3.4 i out [ma] 150 ?150 ?100 ?50 0 50 100 v out i out 2. 3 v out = 3.5 v v in = 4.5 v, c in = c l = 0.1 f, i out = 1 ? 50 ma v out [v] t [ms] ?0.2 0.8 1.2 0 0.2 0.4 0.6 1 1.4 ?0.4 6.3 2.1 2.8 3.5 4.2 4.9 5.6 i out [ma] 100 ?200 ?150 ?100 ?50 0 50 v out i out v in = 4.5 v, c in = c l = 0.1 f, i out = 50 ? 100 ma v out [v] t [ s] ?100 400 600 0 100 200 300 500 700 ?200 4.7 2.9 3.2 3.5 3.8 4.1 4.4 i out [ma] 150 ?150 ?100 ?50 0 50 100 v out i out
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 30 3. transient response characteristics of on / off pin (ta = +25c) 3. 1 v out = 1.0 v v in = 2.0 v, tr = 1.0 s, c in = c l = 0.1 f, i out = 1 ma ?100 ?0.5 2.5 400 2.0 1.5 1.0 0.5 0 300 200 1000 v out [v] t [ s] v on / off [v] 4 2 0 ?2 ?4 ?6 ?8 v out v on / off v in = 2.0 v, tr = 1.0 s, c in = c l = 0.1 f, i out = 100 ma ?100 ?0.5 2.5 400 2.0 1.5 1.0 0.5 0 300 200 1000 v out [v] t [ s] v on / off [v] 4 2 0 ?2 ?4 ?6 ?8 v on / off v out 3. 2 v out = 2.5 v v in = 3.5 v, tr = 1.0 s, c in = c l = 0.1 f, i out = 1 ma ?200 ?2 10 1000 8 6 4 2 0 v out [v] t [ s] v on / off [v] 6 4 2 0 ?2 ?4 ?6 0 200 400 600 800 v on / off v out v in = 3.5 v, tr = 1.0 s, c in = c l = 0.1 f, i out = 100 ma ?200 ?2 10 1000 8 6 4 2 0 v out [v] t [ s] v on / off [v] 6 4 2 0 ?2 ?4 ?6 0 200 400 600 800 v on / off v out 3. 3 v out = 3.5 v v in = 4.5 v, tr = 1.0 s, c in = c l = 0.1 f, i out = 1 ma ?200 ?2 14 1000 v out [v] t [ s] v on / off [v] 8 ?8 0 200 400 600 800 12 10 8 6 4 2 0 4 2 0 ?6 ?4 ?2 6 v on / off v out v in = 4.5 v, tr = 1.0 s, c in = c l = 0.1 f, i out = 100 ma ?200 ?2 14 1000 v out [v] t [ s] v on / off [v] 8 ?8 0 200 400 600 800 12 10 8 6 4 2 0 4 2 0 ?6 ?4 ?2 6 v on / off v out
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 31 4. output capacitance vs. characteristics of discharge time (ta = +25c) v in = v out + 1.0 v, i out = no load v on / off = v out + 1.0 v v ss , tf = 1 s t dsc [ms] 0 c l [f] 2468 1.4 010 12 1.2 1.0 0.8 0.6 0.4 0.2 v out(s) = 1.0 v 3.5 v 2.5 v v out v on / off 1 s t dsc v out 10% v ss v in = v out + 1.0 v v on / off = v out + 1.0 v v ss figure 22 s-1313 series a / b types (with discharge shunt function) figure 23 measurement condition of discharge time 5. ripple rejection (ta = +25c) 5. 1 v out = 1.0 v 5. 2 v out = 2.5 v v in = 2.0 v, c l = 0.1 f 10 100 1k 10k 100k ripple rejection [db] 0 frequency [hz] 1m 100 90 80 70 60 50 40 30 20 10 i out = 1 ma i out = 100 ma i out = 30 ma v in = 3.5 v, c l = 0.1 f 10 100 1k 10k 100k ripple rejection [db] 0 frequency [hz] 1m 100 90 80 70 60 50 40 30 20 10 i out = 1 ma i out = 100 ma i out = 30 ma i out = 200 ma 5. 3 v out = 3.5 v v in = 4.5 v, c l = 0.1 f 10 100 1k 10k 100k ripple rejection [db] 0 frequency [hz] 1m 100 90 80 70 60 50 40 30 20 10 i out = 1 ma i out = 100 ma i out = 30 ma i out = 200 ma
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 32 6. example of equivalent series resist ance vs. output current characteristics (ta = +25 c) 100 0.1 240 i out [ma] r esr [ ] c in = c l = 0.1 f 0 stable c in vin vss s-1313 series vout on / off c l *1 r esr *1. cl : murata manufacturing co., ltd. grm31cr72e104k figure 24 figure 25
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 33 ? marking specifications 1. hsnt-4(0808) (1) to (3) : product code (refer to product name vs. product code ) hsnt-4(0808) top view 4 3 1 2 (1) (2) (3) product name vs. product code 1. 1 s-1313 series a type 1. 2 s-1313 series b type product code product code product name (1) (2) (3) product name (1) (2) (3) s-1313a10-a4t1u3 1 l a s-1313b10-a4t1u3 1 n a s-1313a11-a4t1u3 1 l b s-1313b11-a4t1u3 1 n b s-1313a12-a4t1u3 1 l c s-1313b12-a4t1u3 1 n c s-1313a13-a4t1u3 1 l d s-1313b13-a4t1u3 1 n d s-1313a14-a4t1u3 1 l e s-1313b14-a4t1u3 1 n e s-1313a15-a4t1u3 1 l f s-1313b15-a4t1u3 1 n f s-1313a16-a4t1u3 1 l g s-1313b16-a4t1u3 1 n g s-1313a17-a4t1u3 1 l h s-1313b17-a4t1u3 1 n h s-1313a18-a4t1u3 1 l j s-1313b18-a4t1u3 1 n j s-1313a1j-a4t1u3 1 l k s-1313b1j-a4t1u3 1 n k s-1313a19-a4t1u3 1 l l s-1313b19-a4t1u3 1 n l s-1313a20-a4t1u3 1 l n s-1313b20-a4t1u3 1 n n s-1313a21-a4t1u3 1 l o s-1313b21-a4t1u3 1 n o s-1313a22-a4t1u3 1 l p s-1313b22-a4t1u3 1 n p s-1313a23-a4t1u3 1 l q s-1313b23-a4t1u3 1 n q s-1313a24-a4t1u3 1 l r s-1313b24-a4t1u3 1 n r s-1313a25-a4t1u3 1 l s s-1313b25-a4t1u3 1 n s s-1313a26-a4t1u3 1 l t s-1313b26-a4t1u3 1 n t s-1313a27-a4t1u3 1 l v s-1313b27-a4t1u3 1 n u s-1313a28-a4t1u3 1 l u s-1313b28-a4t1u3 1 n v s-1313a2j-a4t1u3 1 l x s-1313b2j-a4t1u3 1 n x s-1313a29-a4t1u3 1 l y s-1313b29-a4t1u3 1 n y s-1313a30-a4t1u3 1 l z s-1313b30-a4t1u3 1 n z s-1313a31-a4t1u3 1 l 1 s-1313b31-a4t1u3 1 n 1 s-1313a32-a4t1u3 1 l 2 s-1313b32-a4t1u3 1 n 2 s-1313a33-a4t1u3 1 l 3 s-1313b33-a4t1u3 1 n 3 s-1313a34-a4t1u3 1 l 4 s-1313b34-a4t1u3 1 n 4 s-1313a35-a4t1u3 1 l 5 s-1313b35-a4t1u3 1 n 5 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 34 1. 3 s-1313 series c type 1. 4 s-1313 series d type product code product code product name (1) (2) (3) product name (1) (2) (3) s-1313c10-a4t1u3 1 o a s-1313d10-a4t1u3 1 p a s-1313c11-a4t1u3 1 o b s-1313d11-a4t1u3 1 p b s-1313c12-a4t1u3 1 o c s-1313d12-a4t1u3 1 p c s-1313c13-a4t1u3 1 o d s-1313d13-a4t1u3 1 p d s-1313c14-a4t1u3 1 o e s-1313d14-a4t1u3 1 p e s-1313c15-a4t1u3 1 o f s-1313d15-a4t1u3 1 p f s-1313c16-a4t1u3 1 o g s-1313d16-a4t1u3 1 p g s-1313c17-a4t1u3 1 o h s-1313d17-a4t1u3 1 p h s-1313c18-a4t1u3 1 o j s-1313d18-a4t1u3 1 p j s-1313c1j-a4t1u3 1 o k s-1313d1j-a4t1u3 1 p k s-1313c19-a4t1u3 1 o l s-1313d19-a4t1u3 1 p l s-1313c20-a4t1u3 1 o n s-1313d20-a4t1u3 1 p n s-1313c21-a4t1u3 1 o o s-1313d21-a4t1u3 1 p o s-1313c22-a4t1u3 1 o p s-1313d22-a4t1u3 1 p p s-1313c23-a4t1u3 1 o q s-1313d23-a4t1u3 1 p q s-1313c24-a4t1u3 1 o r s-1313d24-a4t1u3 1 p r s-1313c25-a4t1u3 1 o s s-1313d25-a4t1u3 1 p s s-1313c26-a4t1u3 1 o t s-1313d26-a4t1u3 1 p t s-1313c27-a4t1u3 1 o u s-1313d27-a4t1u3 1 p u s-1313c28-a4t1u3 1 o v s-1313d28-a4t1u3 1 p v s-1313c2j-a4t1u3 1 o x s-1313d2j-a4t1u3 1 p x s-1313c29-a4t1u3 1 o y s-1313d29-a4t1u3 1 p y s-1313c30-a4t1u3 1 o z s-1313d30-a4t1u3 1 p z s-1313c31-a4t1u3 1 o 1 s-1313d31-a4t1u3 1 p 1 s-1313c32-a4t1u3 1 o 2 s-1313d32-a4t1u3 1 p 2 s-1313c33-a4t1u3 1 o 3 s-1313d33-a4t1u3 1 p 3 s-1313c34-a4t1u3 1 o 4 s-1313d34-a4t1u3 1 p 4 s-1313c35-a4t1u3 1 o 5 s-1313d35-a4t1u3 1 p 5 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 35 2. sot-23-5 (1) to (3) : product code (refer to product name vs. product code ) (4) : lot number 5 4 1 3 2 (1) (2) (3) (4) sot-23-5 to p vie w product name vs. product code 2. 1 s-1313 series a type 2. 2 s-1313 series b type product code product code product name (1) (2) (3) product name (1) (2) (3) s-1313a10-m5t1u3 1 l a s-1313b10-m5t1u3 1 n a s-1313a11-m5t1u3 1 l b s-1313b11-m5t1u3 1 n b s-1313a12-m5t1u3 1 l c s-1313b12-m5t1u3 1 n c s-1313a13-m5t1u3 1 l d S-1313B13-M5T1U3 1 n d s-1313a14-m5t1u3 1 l e s-1313b14-m5t1u3 1 n e s-1313a15-m5t1u3 1 l f s-1313b15-m5t1u3 1 n f s-1313a16-m5t1u3 1 l g s-1313b16-m5t1u3 1 n g s-1313a17-m5t1u3 1 l h s-1313b17-m5t1u3 1 n h s-1313a18-m5t1u3 1 l j s-1313b18-m5t1u3 1 n j s-1313a1j-m5t1u3 1 l k s-1313b1j-m5t1u3 1 n k s-1313a19-m5t1u3 1 l l s-1313b19-m5t1u3 1 n l s-1313a20-m5t1u3 1 l n s-1313b20-m5t1u3 1 n n s-1313a21-m5t1u3 1 l o s-1313b21-m5t1u3 1 n o s-1313a22-m5t1u3 1 l p s-1313b22-m5t1u3 1 n p s-1313a23-m5t1u3 1 l q s-1313b23-m5t1u3 1 n q s-1313a24-m5t1u3 1 l r s-1313b24-m5t1u3 1 n r s-1313a25-m5t1u3 1 l s s-1313b25-m5t1u3 1 n s s-1313a26-m5t1u3 1 l t s-1313b26-m5t1u3 1 n t s-1313a27-m5t1u3 1 l v s-1313b27-m5t1u3 1 n u s-1313a28-m5t1u3 1 l u s-1313b28-m5t1u3 1 n v s-1313a2j-m5t1u3 1 l x s-1313b2j-m5t1u3 1 n x s-1313a29-m5t1u3 1 l y s-1313b29-m5t1u3 1 n y s-1313a30-m5t1u3 1 l z s-1313b30-m5t1u3 1 n z s-1313a31-m5t1u3 1 l 1 s-1313b31-m5t1u3 1 n 1 s-1313a32-m5t1u3 1 l 2 s-1313b32-m5t1u3 1 n 2 s-1313a33-m5t1u3 1 l 3 s-1313b33-m5t1u3 1 n 3 s-1313a34-m5t1u3 1 l 4 s-1313b34-m5t1u3 1 n 4 s-1313a35-m5t1u3 1 l 5 s-1313b35-m5t1u3 1 n 5 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 36 2. 3 s-1313 series c type 2. 4 s-1313 series d type product code product code product name (1) (2) (3) product name (1) (2) (3) s-1313c10-m5t1u3 1 o a s-1313d10-m5t1u3 1 p a s-1313c11-m5t1u3 1 o b s-1313d11-m5t1u3 1 p b s-1313c12-m5t1u3 1 o c s-1313d12-m5t1u3 1 p c s-1313c13-m5t1u3 1 o d s-1313d13-m5t1u3 1 p d s-1313c14-m5t1u3 1 o e s-1313d14-m5t1u3 1 p e s-1313c15-m5t1u3 1 o f s-1313d15-m5t1u3 1 p f s-1313c16-m5t1u3 1 o g s-1313d16-m5t1u3 1 p g s-1313c17-m5t1u3 1 o h s-1313d17-m5t1u3 1 p h s-1313c18-m5t1u3 1 o j s-1313d18-m5t1u3 1 p j s-1313c1j-m5t1u3 1 o k s-1313d1j-m5t1u3 1 p k s-1313c19-m5t1u3 1 o l s-1313d19-m5t1u3 1 p l s-1313c20-m5t1u3 1 o n s-1313d20-m5t1u3 1 p n s-1313c21-m5t1u3 1 o o s-1313d21-m5t1u3 1 p o s-1313c22-m5t1u3 1 o p s-1313d22-m5t1u3 1 p p s-1313c23-m5t1u3 1 o q s-1313d23-m5t1u3 1 p q s-1313c24-m5t1u3 1 o r s-1313d24-m5t1u3 1 p r s-1313c25-m5t1u3 1 o s s-1313d25-m5t1u3 1 p s s-1313c26-m5t1u3 1 o t s-1313d26-m5t1u3 1 p t s-1313c27-m5t1u3 1 o u s-1313d27-m5t1u3 1 p u s-1313c28-m5t1u3 1 o v s-1313d28-m5t1u3 1 p v s-1313c2j-m5t1u3 1 o x s-1313d2j-m5t1u3 1 p x s-1313c29-m5t1u3 1 o y s-1313d29-m5t1u3 1 p y s-1313c30-m5t1u3 1 o z s-1313d30-m5t1u3 1 p z s-1313c31-m5t1u3 1 o 1 s-1313d31-m5t1u3 1 p 1 s-1313c32-m5t1u3 1 o 2 s-1313d32-m5t1u3 1 p 2 s-1313c33-m5t1u3 1 o 3 s-1313d33-m5t1u3 1 p 3 s-1313c34-m5t1u3 1 o 4 s-1313d34-m5t1u3 1 p 4 s-1313c35-m5t1u3 1 o 5 s-1313d35-m5t1u3 1 p 5 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator rev.1.1 _00 s-1313 series seiko instruments inc. 37 3. sc-82ab (1) to (3) : product code (refer to product name vs. product code ) 4 3 1 2 sc-82ab top view (1) (2) (3) product name vs. product code 3. 1 s-1313 series a type 3. 2 s-1313 series b type product code product code product name (1) (2) (3) product name (1) (2) (3) s-1313a10-n4t1u3 1 l a s-1313b10-n4t1u3 1 n a s-1313a11-n4t1u3 1 l b s-1313b11-n4t1u3 1 n b s-1313a12-n4t1u3 1 l c s-1313b12-n4t1u3 1 n c s-1313a13-n4t1u3 1 l d s-1313b13-n4t1u3 1 n d s-1313a14-n4t1u3 1 l e s-1313b14-n4t1u3 1 n e s-1313a15-n4t1u3 1 l f s-1313b15-n4t1u3 1 n f s-1313a16-n4t1u3 1 l g s-1313b16-n4t1u3 1 n g s-1313a17-n4t1u3 1 l h s-1313b17-n4t1u3 1 n h s-1313a18-n4t1u3 1 l j s-1313b18-n4t1u3 1 n j s-1313a1j-n4t1u3 1 l k s-1313b1j-n4t1u3 1 n k s-1313a19-n4t1u3 1 l l s-1313b19-n4t1u3 1 n l s-1313a20-n4t1u3 1 l n s-1313b20-n4t1u3 1 n n s-1313a21-n4t1u3 1 l o s-1313b21-n4t1u3 1 n o s-1313a22-n4t1u3 1 l p s-1313b22-n4t1u3 1 n p s-1313a23-n4t1u3 1 l q s-1313b23-n4t1u3 1 n q s-1313a24-n4t1u3 1 l r s-1313b24-n4t1u3 1 n r s-1313a25-n4t1u3 1 l s s-1313b25-n4t1u3 1 n s s-1313a26-n4t1u3 1 l t s-1313b26-n4t1u3 1 n t s-1313a27-n4t1u3 1 l v s-1313b27-n4t1u3 1 n u s-1313a28-n4t1u3 1 l u s-1313b28-n4t1u3 1 n v s-1313a2j-n4t1u3 1 l x s-1313b2j-n4t1u3 1 n x s-1313a29-n4t1u3 1 l y s-1313b29-n4t1u3 1 n y s-1313a30-n4t1u3 1 l z s-1313b30-n4t1u3 1 n z s-1313a31-n4t1u3 1 l 1 s-1313b31-n4t1u3 1 n 1 s-1313a32-n4t1u3 1 l 2 s-1313b32-n4t1u3 1 n 2 s-1313a33-n4t1u3 1 l 3 s-1313b33-n4t1u3 1 n 3 s-1313a34-n4t1u3 1 l 4 s-1313b34-n4t1u3 1 n 4 s-1313a35-n4t1u3 1 l 5 s-1313b35-n4t1u3 1 n 5 remark please contact our sales office for products with specifications other than the above.
super low current consumption low dropout cmos voltage regulator s-1313 series rev.1.1 _00 seiko instruments inc. 38 3. 3 s-1313 series c type 3. 4 s-1313 series d type product code product code product name (1) (2) (3) product name (1) (2) (3) s-1313c10-n4t1u3 1 o a s-1313d10-n4t1u3 1 p a s-1313c11-n4t1u3 1 o b s-1313d11-n4t1u3 1 p b s-1313c12-n4t1u3 1 o c s-1313d12-n4t1u3 1 p c s-1313c13-n4t1u3 1 o d s-1313d13-n4t1u3 1 p d s-1313c14-n4t1u3 1 o e s-1313d14-n4t1u3 1 p e s-1313c15-n4t1u3 1 o f s-1313d15-n4t1u3 1 p f s-1313c16-n4t1u3 1 o g s-1313d16-n4t1u3 1 p g s-1313c17-n4t1u3 1 o h s-1313d17-n4t1u3 1 p h s-1313c18-n4t1u3 1 o j s-1313d18-n4t1u3 1 p j s-1313c1j-n4t1u3 1 o k s-1313d1j-n4t1u3 1 p k s-1313c19-n4t1u3 1 o l s-1313d19-n4t1u3 1 p l s-1313c20-n4t1u3 1 o n s-1313d20-n4t1u3 1 p n s-1313c21-n4t1u3 1 o o s-1313d21-n4t1u3 1 p o s-1313c22-n4t1u3 1 o p s-1313d22-n4t1u3 1 p p s-1313c23-n4t1u3 1 o q s-1313d23-n4t1u3 1 p q s-1313c24-n4t1u3 1 o r s-1313d24-n4t1u3 1 p r s-1313c25-n4t1u3 1 o s s-1313d25-n4t1u3 1 p s s-1313c26-n4t1u3 1 o t s-1313d26-n4t1u3 1 p t s-1313c27-n4t1u3 1 o u s-1313d27-n4t1u3 1 p u s-1313c28-n4t1u3 1 o v s-1313d28-n4t1u3 1 p v s-1313c2j-n4t1u3 1 o x s-1313d2j-n4t1u3 1 p x s-1313c29-n4t1u3 1 o y s-1313d29-n4t1u3 1 p y s-1313c30-n4t1u3 1 o z s-1313d30-n4t1u3 1 p z s-1313c31-n4t1u3 1 o 1 s-1313d31-n4t1u3 1 p 1 s-1313c32-n4t1u3 1 o 2 s-1313d32-n4t1u3 1 p 2 s-1313c33-n4t1u3 1 o 3 s-1313d33-n4t1u3 1 p 3 s-1313c34-n4t1u3 1 o 4 s-1313d34-n4t1u3 1 p 4 s-1313c35-n4t1u3 1 o 5 s-1313d35-n4t1u3 1 p 5 remark please contact our sales office for products with specifications other than the above.

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www.sii-ic.com ? the information described herein is subject to change without notice. ? seiko instruments inc. is not responsible for any pr oblems caused by circuits or diagrams described herein whose related industrial properties, patents, or ot her rights belong to third parties. the application circuit examples explain typical applications of the products, and do not guarant ee the success of any specific mass-production design. ? when the products described herein are regulated produ cts subject to the wassenaar arrangement or other agreements, they may not be exported without authoriz ation from the appropriate governmental authority. ? use of the information described he rein for other purposes and/or repr oduction or copying without the express permission of seiko instrum ents inc. is strictly prohibited. ? the products described herein cannot be used as par t of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of seiko instruments inc. ? although seiko instruments inc. exerts the greatest possible effort to ensure high quality and reliability, the failure or malfunction of semiconductor products may oc cur. the user of these products should therefore give thorough consideration to safety design, including redundancy, fire-prevention measures, and malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.

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