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220 general description ELM99XXXA series is cmos voltage regulator providing large current. it consists of devices including reference voltage source, error amplifier, low resistance output transistor, short-circuit protection circuit, output voltage setting resistor, chip-enable circuit. output voltage is fixed internally with high accuracy. ELM99XXXA provides excellent characteristics, such as small input-output voltage difference due to low resistance output transistor, high load stability due to high gain error amplifier. the chip-enable function is available in three selections, no-chip enable function, active-low (?l? active) and active-high (?h? active). the package is sot-89-3 or sot-89-5. sot-89-5 is used for chip enable version. features ? maximum output current : 300ma (intenal current limiter operates in case load current exceeds 300ma.) ? high accuracy of output voltage : 2.0% ? small input-output voltage differential : typ. 140mv (elm9930xa iout=40ma) ? low stand-by current consumption : typ. 0.1 a (elm99xx3a) ? high load stability : typ. 5mv (1ma Q iout Q 100ma) ? high input stability : typ. 0.15%/v (elm9930xa iout=40ma) ? output voltage range : 2.0v 6.0v ( 0.1v steps ) ? short-circuit current limiter : typ. 70ma (vout=0v) ? chip-enable pin available : ?l?active elm99xx2a, ?h?active elm99xx3a application ? cellular telephones ? palmtops ? laptop and notebook computers ? cameras and video recorders ? reference voltage sources ? battery-operated devices ? pcmcia cards 1 .elm99xx 1 a sot-89 pin no. pin name 1 vss 2 vin 3 vout 2.elm99xx2a 3.elm99xx3a sot-89-5 pin no. pin name 1 vss 2 vin 3 vout 4 nc 5 ce 1 23 ( top view ) sot-89 1 23 ( top view ) 5 4 sot-89-5 ELM99XXXA ELM99XXXA ELM99XXXA ELM99XXXA ELM99XXXA low saturation voltage regulator sot-89-5 pin no. pin name 1 vss 2 vin 3 vout 4 nc 5 ce pin configuration 1 23 ( top view ) 5 4 sot-89-5
221 low saturation voltage regulator ELM99XXXA selection guide elm99 x x x a elm99 x x x a elm99 x x x a elm99 x x x a elm99 x x x a a b c d a b c d a b c d a b c d a b c d symbol ex 27 : vout = 2.7v 30 : vout = 3.0v 33 : vout = 3.3v 50 : vout = 5.0v 1 : 2 : ce = "l"active 3 : ce = "h"active d product version a : a version a, b output voltage ce selection c marking sot-89 ? ? elm99xx 1 a elm99xx 1 a elm99xx 1 a elm99xx 1 a elm99xx 1 a : represents the integer digit of the output voltage : represents the decimal digit of the output voltage : represents the assembly lot number a z repeated (i,o,x excepted) : represents the assembly lot number 0 9 repeated symbol output voltage symbol output voltage a *.0v f *.5v b *.1v g *.6v c *.2v h *.7v d *.3v j *.8v e *.4v k *.9v symbol output voltage symbol output voltage a 2.*v d 5.*v b 3.*v e 6.*v c 4.*v
222 low saturation voltage regulator ELM99XXXA ? ? sot-89-5 elm99xx2a elm99xx2a elm99xx2a elm99xx2a elm99xx2a : represents the integer digit of the output voltage : represents the decimal digit of the output voltage : represents the assembly lot number a z repeated (i,o,x excepted) : represents the assembly lot number 0 9 repeated symbol output voltage symbol output voltage a *.0v f *.5v b *.1v g *.6v c *.2v h *.7v d *.3v j *.8v e *.4v k *.9v symbol output voltage symbol output voltage f 2.*v j 5.*v g 3.*v k 6.*v h 4.*v elm99xx3a elm99xx3a elm99xx3a elm99xx3a elm99xx3a : represents the integer digit of the output voltage : represents the decimal digit of the output voltage : represents the assembly lot number a z repeated (i,o,x excepted) : represents the assembly lot number 0 9 repeated symbol output voltage symbol output voltage a *.0v f *.5v b *.1v g *.6v c *.2v h *.7v d *.3v j *.8v e *.4v k *.9v symbol output voltage symbol output voltage l 2.*v p 5.*v m 3.*v q 6.*v n 4.*v
223 low saturation voltage regulator ELM99XXXA block diagram standard circuit vout vss vref protect circuit vin - + vin vout ci co vss vin vout elm99xx 1 a vin vout ci co vss vin vout elm99xx2a elm99xx3a control voltage ce/ce ce/ce vout vss vref protect circuit vin - + control circuit elm99xx 1 a elm99xx2a, elm99xx3a * ce : elm99xx2a, ce : elm99xx3a elm99xx 1 a elm99xx2a, elm99xx3a * ce : elm99xx2a, ce : elm99xx3a maximum absolute ratings (vss=0v) parameter limits units input voltage 12 v ce/ce input voltage vss-0.3 output voltage vss-0.3 output current 500 ma sot-89 300 sot-89-5 500 operating temperature -30 storage temperature -40 sym. vin vce vout iout top tstg power dissipation pd * output current must not exceed power dissipation specified in maximum absolute ratings.
224 low saturation voltage regulator ELM99XXXA elm9927 1 a elm9927 1 a elm9927 1 a elm9927 1 a parameter symbol conditions min. typ. max. units output voltage vout vin=3.7v, iout=40ma 2.646 2.700 2.754 v vin=3.7v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=3.7v no-load 25 45 Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma (top=25 ) %/v ppm/ load stability input stability 515 0.15 0.30 vdif iout=40ma ma output current iout 150 electrical characteristics elm9930 1 a elm9930 1 a elm9930 1 a elm9930 1 a parameter symbol conditions min. typ. max. units output voltage vout vin=4.0v, iout=40ma 2.940 3.000 3.060 v vin=4.0v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=4.0v no-load 25 45 Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma output current iout 160 290 (top=25 ) %/v ppm/ load stability input stability 515 0.15 0.30 vdif iout=40ma
225 low saturation voltage regulator ELM99XXXA elm9933 1 a elm9933 1 a elm9933 1 a elm9933 1 a parameter symbol conditions min. typ. max. units output voltage vout vin=4.3v, iout=40ma 3.234 3.300 3.366 v vin=4.3v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=4.3v no-load 25 45 Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma load stability input stability 515 0.15 0.30 vdif iout=40ma (top=25 ) %/v ppm/ output current iout 170 300 elm9950 1 a elm9950 1 a elm9950 1 a elm9950 1 a parameter symbol conditions min. typ. max. units output voltage vout vin=6.0v, iout=40ma 4.900 5.000 5.100 v vin=6.0v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=6.0v no-load 30 55 Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma (top=25 ) %/v ppm/ load stability input stability 515 0.15 0.30 vdif iout=40ma output current iout 200 330
226 low saturation voltage regulator ELM99XXXA elm99302a elm99302a elm99302a elm99302a parameter symbol conditions min. typ. max. units output voltage vout vin=4.0v, iout=40ma 2.940 3.000 3.060 v vin=4.0v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=4.0v 25 45 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0 0.2 ce input current "l" icel vce=vss -1.5 -0.4 output current iout 160 290 (top=25 ) ppm/ input stability 515mv load stability %/v vdif iout=40ma 140 220 istandby vin=vce=4.0v 0.005 0.1 elm99272a elm99272a elm99272a elm99272a parameter symbol conditions min. typ. max. units output voltage vout vin=3.7v, iout=40ma 2.646 2.700 2.754 v vin=3.7v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=3.7v 25 45 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0 0.2 ce input current "l" icel vce=vss -1.5 -0.4 input stability 515mv load stability %/v vdif iout=40ma 155 255 (top=25 ) ppm/ output current iout 150 260
227 low saturation voltage regulator ELM99XXXA elm99332a elm99332a elm99332a elm99332a parameter symbol conditions min. typ. max. units output voltage vout vin=4.3v, iout=40ma 3.234 3.300 3.366 v vin=4.3v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=4.3v 25 45 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0 0.2 ce input current "l" icel vce=vss -1.5 -0.4 output current iout 170 300 (top=25 ) input stability 515mv load stability %/v vdif iout=40ma 125 ppm/ elm99502a elm99502a elm99502a elm99502a parameter symbol conditions min. typ. max. units output voltage vout vin=6.0v, iout=40ma 4.900 5.000 5.100 v vin=6.0v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=6.0v 30 55 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0 0.2 ce input current "l" icel vce=vss -1.5 -0.4 (top=25 ) input stability 515mv load stability %/v vdif iout=40ma 105 ppm/ output current iout 200 330
228 low saturation voltage regulator ELM99XXXA elm99273a elm99273a elm99273a elm99273a parameter symbol conditions min. typ. max. units output voltage vout vin=3.7v, iout=40ma 2.646 2.700 2.754 v vin=3.7v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=3.7v 25 45 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0.4 1.5 ce input current "l" icel vce=vss -0.2 0 output current iout 150 260 (top=25 ) input stability 515mv load stability %/v vdif iout=40ma 155 ppm/ elm99303a elm99303a elm99303a elm99303a parameter symbol conditions min. typ. max. units output voltage vout vin=4.0v, iout=40ma 2.940 3.000 3.060 v vin=4.0v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=4.0v 25 45 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0.4 1.5 ce input current "l" icel vce=vss -0.2 0 input stability 515mv load stability %/v vdif iout=40ma 140 220 (top=25 ) ppm/ output current iout 160 290
229 low saturation voltage regulator ELM99XXXA elm99333a elm99333a elm99333a elm99333a parameter symbol conditions min. typ. max. units output voltage vout vin=4.3v, iout=40ma 3.234 3.300 3.366 v vin=4.3v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=4.3v 25 45 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0.4 1.5 ce input current "l" icel vce=vss -0.2 0 output current iout 170 300 istandby vin=4.3v, vce=vss 0.1 0.5 input stability 515mv load stability %/v vdif iout=40ma 125 mv (top=25 ) ppm/ elm99503a elm99503a elm99503a elm99503a parameter symbol conditions min. typ. max. units output voltage vout vin=6.0v, iout=40ma 4.900 5.000 5.100 v vin=6.0v, lower by 0.1v than vout Q Q input/output voltage differential current consumption iss vin=6.0v 30 55 stand-by current consumption Q Q input voltage vin 8.0 v output voltage temp. characteristics Q Q short-circuit current ilim vout=0v 70 ma ce input voltage "h" vceh vin=8.0v 1.80 vin v ce input voltage "l" vcel vin=2.0v 0 0.25 v ce input current "h" iceh vce=vin 0.4 1.5 ce input current "l" icel vce=vss -0.2 0 output current iout 200 330 istandby vin=6.0v, vce=vss 0.1 0.5 input stability 515mv load stability %/v vdif iout=40ma 105 170 (top=25 ) ppm/
230 typical performance characteristics low saturation voltage regulator ELM99XXXA 2 3 4 5 6 7 8 0.0 0.5 1.0 1.5 2.0 vin(v) vceh(v) elm99xx2a vceh - vin top=-30 +25 +80 2 3 4 5 6 7 8 0.0 0.5 1.0 1.5 2.0 vin(v) vcel(v) elm99xx2a vcel - vin top=-30 +25 +80 2 3 4 5 6 7 8 0.0 0.5 1.0 1.5 2.0 vin(v) vceh(v) elm99xx3a vceh - vin top=-30 +25 +80 2 3 4 5 6 7 8 0.0 0.5 1.0 1.5 2.0 vin(v) vcel(v) elm99xx3a vcel - vin top=-30 +25 +80
231 low saturation voltage regulator ELM99XXXA elm9927xa -20 0 20 40 60 80 2.60 2.62 2.64 2.66 2.68 2.70 2.72 2.74 2.76 2.78 2.80 top( ) vout(v) vout - top vin=3.7v iout=1ma 100ma 2.5 3.0 3.5 2.0 2.5 vin(v) vout(v) vout - vin top=25 iout=1ma 40ma 100ma 3 4 5 6 7 8 2.66 2.68 2.70 2.72 2.74 vin(v) vout(v) vout - vin top=25 iout=40ma 0 50 100 150 200 250 300 2.2 2.4 2.6 2.8 3.0 3.2 iout(ma) vout(v) top=+80 -30 +25 vin=3.7v vout - iout 100 200 300 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 iout(ma) vdif(v) vdif - iout top=+80 +25 -30 10 1 10 2 10 3 10 4 10 5 0 10 20 30 40 50 60 frequency(hz) ripple rejection(db) ripple rejection co=1.0 f
232 low saturation voltage regulator ELM99XXXA 3 4 5 6 7 8 0 10 20 30 40 50 vin(v) iss( a) iss - vin top=25 -20 0 20 40 60 80 0 10 20 30 40 50 top( ) iss( a) iss - top vin=3.7v 0 100 200 300 400 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 time ( s) input,outputvoltage (v) input transient response co=1.0 f iout=40ma input voltage output voltage 200 400 600 800 2.0 2.5 3.0 3.5 4.0 4.5 0 time ( s) output voltage (v) load transient response co=1.0 f output current vin=3.7v 1ma 40ma output voltage 100 200 300 400 2.0 2.5 3.0 3.5 4.0 4.5 0 time ( s) output voltage (v) load transient response co=1.0 f output current vin=3.7v 40ma 100ma output voltage 0 100 200 300 400 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 time ( s) input,outputvoltage (v) input transient response co=1.0 f iout=100ma input voltage output voltage
233 low saturation voltage regulator ELM99XXXA elm9930xa 2.5 3.0 3.5 4.0 2.0 2.5 3.0 vin(v) vout(v) vout - vin top=25 iout=1ma 40ma 100ma 3 4 5 6 7 8 2.96 2.98 3.00 3.02 3.04 vin(v) vout(v) vout - vin top=25 iout=40ma 0 50 100 150 200 250 300 2.6 2.8 3.0 3.2 3.4 iout(ma) vout(v) top=+80 -30 +25 vin=4.0v vout - iout 100 200 300 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 iout(ma) vdif(v) vdif - iout top=+80 +25 -30 -20 0 20 40 60 80 2.90 2.92 2.94 2.96 2.98 3.00 3.02 3.04 3.06 3.08 3.10 top( ) vout(v) vout - top vin=4.0v iout=1ma 100ma 10 1 10 2 10 3 10 4 10 5 0 10 20 30 40 50 60 frequency(hz) ripple rejection(db) ripple rejection co=1.0 f
234 low saturation voltage regulator ELM99XXXA 3 4 5 6 7 8 0 10 20 30 40 50 vin(v) iss( a) iss - vin top=25 -20 0 20 40 60 80 0 10 20 30 40 50 top( ) iss( a) iss - top vin=4.0v 0 100 200 300 400 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 time( s) input,output voltage(v) input transient response co=1.0 f input voltage output voltage iout=40ma 0 100 200 300 400 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 time( s) input,output voltage(v) input transient response co=1.0 f input voltage output voltage iout=100ma 0 200 400 600 800 2.0 2.5 3.0 3.5 4.0 4.5 time( s) output voltage(v) load transient response co=1.0 f vin=4.0v output current 40ma 1ma output voltage 0 100 200 300 400 2.0 2.5 3.0 3.5 4.0 4.5 time( s) output voltage(v) load transient response co=1.0 f vin=4.0v output current 100ma 40ma output voltage
235 low saturation voltage regulator ELM99XXXA elm9933xa -20 0 20 40 60 80 3.20 3.22 3.24 3.26 3.28 3.30 3.32 3.34 3.36 3.38 3.40 top( ) vout(v) vout - top vin=4.3v iout=1ma 100ma 10 1 10 2 10 3 10 4 10 5 0 10 20 30 40 50 60 frequency(hz) ripple rejection(db) ripple rejection co=1.0 f 100 200 300 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 iout(ma) vdif(v) vdif - iout top=+80 +25 -30 3.0 3.5 4.0 2.5 3.0 3.5 vin(v) vout(v) vout - vin top=25 iout=1ma 40ma 100ma 0 50 100 150 200 250 300 2.8 3.0 3.2 3.4 3.6 3.8 iout(ma) vout(v) top=+80 -30 +25 vin=4.3v vout - iout 3 4 5 6 7 8 3.26 3.28 3.30 3.32 3.34 vin(v) vout(v) vout - vin top=25 iout=40ma
236 low saturation voltage regulator ELM99XXXA -20 0 20 40 60 80 0 10 20 30 40 50 top( ) iss( a) iss - top vin=4.3v 4 5 6 7 8 0 10 20 30 40 50 vin(v) iss( a) iss - vin top=25 0 100 200 300 400 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 time( s) input,output voltage(v) input transient response co=1.0 f input voltage output voltage iout=40ma 0 100 200 300 400 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 time( s) input,output voltage(v) input transient response co=1.0 f input voltage output voltage iout=100ma 0 200 400 600 800 2.0 2.5 3.0 3.5 4.0 4.5 time( s) output voltage(v) load transient response co=1.0 f vin=4.3v output current 40ma 1ma output voltage 0 100 200 300 400 2.0 2.5 3.0 3.5 4.0 4.5 time( s) output voltage(v) load transient response co=1.0 f vin=4.3v output current 100ma 40ma output voltage
237 low saturation voltage regulator ELM99XXXA elm9950xa 4.5 5.0 5.5 6.0 4.0 4.5 5.0 vin(v) vout(v) vout - vin top=25 iout=1ma 40ma 100ma 5 6 7 8 4.96 4.98 5.00 5.02 5.04 vin(v) vout(v) vout - vin top=25 iout=40ma -20 0 20 40 60 80 4.90 4.92 4.94 4.96 4.98 5.00 5.02 5.04 5.06 5.08 5.10 top( ) vout(v) vout - top vin=6.0v iout=1ma 100ma 0 50 100 150 200 250 300 4.6 4.8 5.0 5.2 5.4 iout(ma) vout(v) top=+80 -30 +25 vin=6.0v vout - iout 100 200 300 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 iout(ma) vdif(v) vdif - iout top=+80 +25 -30 10 1 10 2 10 3 10 4 10 5 0 10 20 30 40 50 60 frequency(hz) ripple rejection(db) ripple rejection co=1.0 f
238 low saturation voltage regulator ELM99XXXA 5 6 7 8 0 10 20 30 40 50 vin(v) iss( a) iss - vin top=25 -20 0 20 40 60 80 0 10 20 30 40 50 top( ) iss( a) iss - top vin=6.0v 0 100 200 300 400 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 time ( s) input,outputvoltage (v) input transient response co=1.0 f iout=40ma input voltage output voltage 0 100 200 300 400 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 time ( s) input,outputvoltage (v) input transient response co=1.0 f iout=100ma input voltage output voltage 0 200 400 600 800 4.0 4.5 5.0 5.5 6.0 6.5 time ( s) output voltage (v) load transient response co=1.0 f output current vin=6.0v 1ma 40ma output voltage 0 100 200 300 400 4.0 4.5 5.0 5.5 6.0 6.5 time ( s) output voltage (v) load transient response co=1.0 f output current vin=6.0v 40ma 100ma output voltage

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