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r1155x series 150 ma 24 v input high voltage regulator no.ea-270-150702 1 outline the r1155x is a cmos-based 24 v input voltage regulato r featuring 150 ma output t hat provides high output voltage accuracy and low supply current. internally, the r1155x consists of a voltage reference unit, an error amplifier, and a resistor net for setting output voltage. as protection circuits, the r1155x contains a current limit circuit, a fold-back protection circuit, a thermal shutdo wn circuit and a reverse current protection circuit. the r1155x is available in the fixed output voltage type (r1155xxxxb), and the adjustable output voltage type (r1155x001c). the output voltage ac curacy for the fixed output voltage type is as high as 2.0%. the r1155x is offered in a 5-pin sot-89-5 package and a 5-pin sot-23-5 package. features ? supply current typ. 7.5 a (v in = 6.0 v or 3.0 v) ? standby curr ent typ. 0.1 a ? output current min. 150 ma (v in = 6.0 v or 3.0 v) ? output voltage ac curacy 2.0% ? package sot- 23-5, sot-89-5 ? input voltage rang e max. 24.0 v ? output voltage range fixed out put voltage type: 2.5 v to 12.0 v adjustable output voltage type: 2.5 v, 2.5 v to 23.0 v using external resistor ? fold-back protection ci rcuit ty p. 30 ma ? thermal shutdown circuit ? reverse current protection circuit ? ceramic capacitor capable c out = 4.7 f or more applications ? power source for home appliances (refrigerators, rice cookers, electric water warmers, etc.) ? power source for in-car audio sy stems, in-car navigation systems, etc systems, and reset circuits ? power source for laptop personal computers, digita l tvs, cordless phones, and private lan systems for home, and reset circuits ? power source for copiers, printers, fa csimiles, scanners, and reset circuits
r1155x no.ea-270-150702 2 selection guide the output voltage, the output voltage type, and the package type for the ics are user-selectable options. selection guide product name package quantity per reel pb free halogen free r1155nxxx ? -tr-fe sot-23-5 3,000 pcs yes yes r1155hxxx ? -t1-fe sot-89-5 1,000 pcs yes yes xxx: designation of the output voltage (v set ) for fixed output voltage type: 2.5 v (025) to 12 v (120) in 0.1 v steps for adjustable output voltage type: 2.5 v (001) only ? ? : designation of the output voltage type (b) fixed output voltage type (c) adjustable output voltage type block diagrams vdd vce reverse current protection voltage reference thermal shutdown current limit on/off control vout gnd vdd vce vout reverse current protection voltage reference thermal shutdown current limit on/off control vfb gnd r1155xxxxb block diagram (fixed output voltage type) r1155x001c block diagram (adjustable output voltage type)
r1155x no.ea-270-150702 3 pin description 1 4 5 23 (mark side) 13 54 2 sot-23-5 pin configuration sot-89-5 pin configuration sot-23-5 pin description pin no symbol description 1 vout vr output pin 2 gnd ground pin 3 vdd input pin 4 tp 1 r1155nxxxb test pin vfb 2 r1155n001c 3 vr adjustment pin 5 ce chip enable pin, active-high sot-89-5 pin description pin no symbol description 1 vout vr output pin 2 gnd ground pin 3 ce chip enable pin, active-high 4 tp 1 r1155hxxxb test pin vfb 2 r1155h001c 3 vr adjustment pin 5 vdd input pin 1 the tp pin must be connected to gnd. 2 a 24 m ? or less voltage setting resistor must be connected to the vfb pin. 3 as for the adjustable output voltage type (r1155n001c), please refer to adjustable output voltage type setting.
r1155x no.ea-270-150702 4 pin eqivalent circuit diagrams v out driver ce vout pin equivalent circuit diagra m vfb pin equivalent circuit diagram tp v out v fb v out tp pin equivalent circuit diagram (r1155xxxxb) vfb pin equivalent circuit diagram (r1155x001c)
r1155x no.ea-270-150702 5 absolute maximum ratings absolute maximum ratings symbol item rating unit v in input voltage ? 0.3 to 26 v v ce input voltage (ce pin) ? 0.3 to v in +0.3 v v out output voltage ? 0.3 to 26 v v vfb output voltage (vfb pin) ? 0.3 to 26 v i out output current 350 ma p d power dissipation (standard land pattern) 1 sot-23-5 420 mw sot-89-5 900 tj junction temperature ? 40 to 125 ? c tstg storage temperature range ? 55 to 125 ? c absolute maximum ratings electronic and mechanical stress momentarily exceed ed absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for bot h device and system using t he device in the field. the functional operation at or over these absolute maximum ratings is not assured. recommended operating conditions recommended operating ratings symbol item ratings unit ta operating temperature range ? 40 to 105 c v in input voltage 3.5 to 24 v recommended operating ratings all of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating ratings. the semiconductor devices cannot operate normally over the recommended operating ratings, even if when they are used over such ra tings by momentary electronic noise or surge. and the semiconductor devices may receive serious damage w hen they continue to operate over the recommended operating ratings. 1 refer to power dissipation in supplementsry items for detail information.
r1155x no.ea-270-150702 6 electrical characteristics v in = v ce = v set + 3.0 v, c out = 4.7 f, i out = 1 ma, unless otherwise noted. the specifications surrounded by are guaranteed by design engineering at ? 40c ta 105c. r1155xxxxb, r1155x001c electrical characteristics (ta = 25 ? c) symbol item conditions min. typ. max. unit i lim output current v in = v set + 4 v 150 ma v out output voltage (low power mode) i out = 1 ma ta = 25oc x0.98 x1.02 v ? 40c ta 105c x0.955 x1.03 v i ss1 supply current (low power mode) i out = 0 ma 2.5 v set 4.2 v 7.5 22 ? a 4.2 < v set 8.4 v 8.6 22 ? a 8.4 < v set 12 v 9.5 22 ? a i ss2 supply current (fast mode) i out = 10 ma 65 125 ? a istandby standby current v in = 24 v, v ce = 0 v 0.1 1.0 ? a ? v out output voltage deviation when switching mode 1 ma i out 6 ma -1.5 0 1.5 % ? v out / ? i out load regulation (fast mode) 6 ma i out 150 ma 2.5 v set 5 v 30 90 mv 5 < v set 12 v 30 100 mv ? v out / ? v in line regulation (low power mode) v set + 0.2 v v in 24 v i out = 1 ma 0.3 1.3 % line regulation (fast mode) v set + 0.2 v v in 24 v i out = 10 ma 1.2 2.4 % v dif dropout voltage i out = 150 ma 2.5v v set < 3.3 v 1.6 2.6 v 3.3 v v set < 5 v 0.96 2.1 v 5 v set 12 v 0.55 1.7 v rr ripple rejection (fast mode) f = 1 khz, 0.5 vp-p, i out = 10 ma 2.5 v set < 5 v 60 db 5 v set 12 v 50 db ? v out / ? ta output voltage temperature coefficient i out = 1 ma, ? 40c ta 105c 100 ppm /c i outh fast mode switching current i out = light load heavy load 2.4 4.5 6.5 ma i outl low power mode switching current i out = heavy load light load 0.6 1.5 2.4 ma i sc short current limit v out = 0 v 30 ma v ceh ce input voltage ?h? 1.35 v in v v cel ce input voltage ?l? 0 0.5 v t tsd thermal shutdown temperature j unction temperature 145 c t tsr thermal shutdown released temperature junction temperature 120 c all test items listed under electrical characteristics are done under the pulse load condition (tj ta = 25c) except for ripple rejection and output voltage temperature coefficient.
r1155x no.ea-270-150702 7 electrical characteristics (continued) v in = v ce = v set + 3.0 v, c out = 4.7 f, i out = 1 ma, unless otherwise noted. the specifications surrounded by are guaranteed by design engineering at ? 40c ta 105c. r1155xxxxb, r1155x001c electrical characteristics (ta = 25 ? c) symbol item conditions min. typ. max. unit i rev reverse current limit ce = gnd, v in = v set + 0.02 v 2.5 v set < 5 v 1.0 3.5 ? a 5 v set 12 v 2.0 6.0 ? a v rev _ det reverse current protection mode detection offset 1 v rev = v dd - v out 0 v in 24.0 v, v out 2.0 v 20 mv v rev _ rel reverse current protection mode release offset 1 0 v in 24.0 v, v out 2.0 v 220 mv all test items listed under electrical characteristics are done under the pulse load condition (tj ta = 25c) except for ripple rejection and output voltage temperature coefficient. 1 the operation of reverse current prot ection circuit is guaranteed when v out 2.0 v. the reverse current protection mode is always turned on when v in = 0 v.
r1155x no.ea-270-150702 8 theory of operation power activation when starting up the ic using the input voltages of t he vdd and ce pins simultaneou sly with no load, the both pin voltages have to be 0.06 v/ ms or faster. when starti ng up the ic using the both pin voltages at 0.06 v/ ms or slower with no load, the vdd pin has to be started up before the ce pin. thermal shutdown circuit the r1155x contains a thermal shutdown circuit, which stops regulator operation if the junction temperature of the r1155x becomes higher than 145 c (typ.). additionally, if the junction temperature after the regulator being stopped decreases to a level below 120 c (typ.), it restarts regulator oper ation. as a result the operation of the thermal shutdown circuit causes the regulator repeatedly to turn off and on until the causes of overheating are removed. as a consequence a pulse shaped output voltage occurs. reverse current protection circuit the r1155x includes a reverse current protection circ uit, which stops the reverse current flowing from the vout to vdd pins or to gnd pin when v out becomes more than v in . usually, the ldo using pch output transistor contai ns a parasitic diode between vdd pin and vout pin. therefore, if v out is more than v in , the parasitic diode becomes forward dire ction. as a result, the current flows from vout pin to vdd pin. the r1155x switches the mode to the re verse current protection mode before v in becomes smaller than v out by connecting the parasitic diode of pch output transistor to the backwa rd direction, and connecting the gate to vout pin. as a result, the pch output transistor is turned off and the all the current pathways from vout pin to gnd pin are shut down to maintain the reverse current lower than [i rev ] of the electrical characteristics. switching to either the normal mode or to the revers e current protection mode is determined by the magnitude of v in voltage and v out voltage. for the stable operation, offset and hysteresis are set as the threshold. the detection/ release thresholds of both normal and re verse current protection modes are specified by [v rev_det ] and [v rev_rel ] of the electrical characteristics. therefore, the minimum dropout voltage under the small load current condition is restricted by the value of [v rev_rel ]. figure 7 and figure 8 show the normal operation mode an d reverse current protection mode, respectively. figure 9 shows the detection/ release timing of reverse current protection function. when giving the vout pin a constant-voltage and decreasing the v in voltage, the dropout voltage will become lower than the [v rev_det ]. as a result, the reverse current protection starts to function to stop the load curren t. by increasing the dropout voltage more than the [v rev_rel ], the protection mode will be released to let the load current to flow. if the dropout voltage to be used is smaller than [v rev_rel ], the detection and the release may be repeated. the operation coverage of the revers e current protection circuit is v out 1.5 v. however, under the condition of v in = 0 v, always the reverse current protection mode is operating.
r1155x no.ea-270-150702 9 gnd vref - + i out reverse detector v in v out gnd vref - + i rev reverse detector v in v out normal operation mode reverse current protection mode output/ reverse current i out / i rev 0 reverse current protection mode normal mode normal mode input/ output voltage v in / v out [v] i out i rev v rev _ det v in v out v rev _ rel detection/ release timing of reverse current protection function
r1155x no.ea-270-150702 10 application information v out v out v in v dd gnd ce c in c out r1155xxxxb v in v out v dd gnd v fb ce c in r115 5x00 1c c out v out r1 r2 r1155xxxxb typical application (fixed output voltage type) r1155x001c typical application (adjustable output voltage type) technical notes on the components selection ? in the r1155x, phase compensation is provided to secu re stable operation even when the load current is varied. for this purpose, use a 4.7 f or more output capacitor (c out ) with good frequency characteristics and proper esr (equivalent series resistance). in case of using a tantalum type capacitor and the esr value of the capacitor is larg e, the output might be unstable. evaluate the circuit including consideration of frequency characteristics. ? ensure the vdd and gnd lines are sufficiently robust . if their impedance is too high, noise pickup or unstable operation may result. connect c out with suitable values between the vout and gnd pins, and as close as possible to the pins. pleas e refer to figure 5 and figure 6 below.
r1155x no.ea-270-150702 11 adjustable output voltage type setting (r1155x001c) the output voltage of the r1155x001c can be adjusted up to 23 v by using the external divider resistors (r1, r2). the resistance value for r2 should be set to 24 m ? or less. by using the following equations, the output voltage can be determined. v fb voltage which is fixed inside the ic is described as setv fb . setv fb is 2.5 v. when using the r1155x001c with 2.5 v, please connect the vout pin to the vfb pin. gnd v out v fb r ic r2 i ic i1 i2 r1 setv fb v out output voltage adjustment using external divider resistors i1 = i ic + i2.......................................................................................................................... .............(1) i2 = setv fb / r2.......................................................................................................................... ......(2) thus, i1 = i ic + setv fb / r2 ......................................................................................................................... (3) therefore, v out = setv fb + r1 x i1 .................................................................................................................... (4) insert equation (3) into equation (4), so v out = setv fb + r1 x (i ic + setv fb / r2) = setv fb x (1+ r1 / r2) + r1 x i ic ............................................................................................ (5) in equation (5), r1xi ic is the error-causing factor in v out . as for i ic , i ic = setv fb / r ic??????????????????????????????????????????????????????? (6) therefore, the error-causing factor r1x i ic can be described as follows. r1 x i ic = r1 x setv fb / r ic = setv fb ? r1 / r ic .............................................................................................................. (7) for better accuracy, choosing r1 (< r1155x no.ea-270-150702 12 equivalent series resistance (esr) vs. output current (i out ) it is recommended that a ceramic type capacitor be used fo r the r1155x. however, other types of capacitors having lower esr can also be used. the relation between the output current (i out ) and the esr of output capacitor is shown below. measurement conditions: ? noise frequency band: 10 hz to 2 mhz ? measurement temperature: ? 40 c to +105 c ? hatched area: noise level is 40 v (avg.) or below. ? c in : 0.1 f ? c out : 4.7 f esr vs. output current 0.01 0.1 1 10 100 1000 0 25 50 75 100 125 150 output current i out (ma) esr ( ? )
r1155x no.ea-270-150702 13 typical characteristics note: typical characteristics are intended to be used as reference data; they are not guaranteed. 1) output voltage vs . output current (c in = 0.1 f, c out = 4.7 f, ta = 25c) r1155x025b/r1155x001c r1155x050b r1155x120b 2) output voltage vs. input voltage (c in = 0.1 f, c out = 4.7 f, ta = 2 5 c ) r1155x025b/r1155x001c r1155x050b 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 100 200 300 400 output current i out (ma) output voltage v out (v) vin=5.5v vin=4.5v vin=3.5v 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 100 200 300 400 output current i out (ma) output voltage v out (v) vin=8v vin=7v vin=6v 0 2 4 6 8 10 12 14 0 100 200 300 400 output current i out (ma) output voltage v out (v) vin=15v vin=14v vin=13v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 5 10 15 20 input voltage v in (v) output voltage v out (v) iout=1ma iout=10ma iout=40ma 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0 5 10 15 20 input voltage v in (v) output voltage v out (v) iout=1ma iout=10ma iout=40ma
r1155x no.ea-270-150702 14 r1155x120b 3) dropout voltage vs. output current (c in = 0.1 f, c out = 4.7 f) r1155x025b/r1155x001c r1155x050b 4) dropout voltage vs. set output voltage r1155x120b (c in = 0.1 f, c out = 4.7 f, ta = 2 5 c ) 0.0 2.0 4.0 6.0 8.0 10.0 12.0 0 5 10 15 20 input voltage v in (v) output voltage v out (v) iout=1ma iout=10ma iou=40ma 0.0 0.5 1.0 1.5 2.0 2.5 0 50 100 150 output current i out (ma) dropout voltage v dif (v) ta=105 b c ta=25 b c ta=-40 b c 0.0 0.5 1.0 1.5 2.0 2.5 050100150 output current i out (ma) dropout voltage v dif (v) ta=105 b c ta=25 b c ta=-40 b c 0.0 0.5 1.0 1.5 2.0 2.5 050100150 output current i out (ma) dropout voltage v dif (v) ta=105 b c ta=25 b c ta=- 40 b c 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 24681012 set output voltage v set (v) dropout voltage v dif (v) iout=150ma iout=50ma iout=30ma iout=1ma
r1155x no.ea-270-150702 15 5) ripple rejection vs. frequency (c in = none, c out = 4.7 f, ripple = 0.2 v p-p , ta = 25c) r1155x025b r1155x050b r1155x120b 0 10 20 30 40 50 60 70 80 90 100 110 0.1 1 10 100 1000 frequency f(khz) ripple rejection rr(db ) 150ma 30ma i out = 1ma v in = 5.5v 0 10 20 30 40 50 60 70 80 90 100 110 0.1 1 10 100 1000 frequency f(khz) ripple rejection rr(db ) i out = 1ma 30ma 150ma v in = 8v 0 10 20 30 40 50 60 70 80 90 100 110 0.1 1 10 100 1000 frequency f(khz) ripple rejection rr(db ) i out = 1ma 30ma 150ma v in = 14v
r1155x no.ea-270-150702 16 6) output voltage vs. operating temperature (c in = 0.1 f, c out = 4.7 f, ta = 25c, i out = 1 ma) r1155x025b/r1155x001c r1155x050b r1155x120b 7) supply current vs. input voltage (c in = 0.1 f, c out = 4.7 f, ta = 2 5 c ) r1155x025b/r1155x001c r1155x050b 2.35 2.40 2.45 2.50 2.55 2.60 2.65 -50-250 255075100 operating temperature ta (c) output voltage v out (v) 4.7 4.8 4.9 5.0 5.1 5.2 5.3 -50 -25 0 25 50 75 100 operating temperature ta (c) output voltage v out (v) 11.4 11.6 11.8 12.0 12.2 12.4 12.6 -50 -25 0 25 50 75 100 operating temperature ta (c) output voltage v out (v) 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 input voltage v in (v) supply current i ss ( a) iout=10ma iout=1ma 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 input voltage v in (v) supply current i ss ( a) iout=10ma iout=1ma v in =6v v in =3.5v v in =13v
r1155x no.ea-270-150702 17 r1155x120b 8) supply current vs. operating temperature (c in = 0.1 f, c out = 4.7 f) r1155x025b/r1155x001c r1155x050b r1155x120b 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 input voltage v in (v) supply current i ss ( a) iout=10ma iout=1ma 0 10 20 30 40 50 60 70 80 90 100 -50-25 0 25 50 75100 operating temperature ta (c) supply current i ss ( a) iout=10ma iout=1ma 0 10 20 30 40 50 60 70 80 90 100 -50 -25 0 25 50 75 100 operating temperature ta (c) supply current i ss ( a) iout=10ma iout=1ma 0 10 20 30 40 50 60 70 80 90 100 -50 -25 0 25 50 75 100 operating temperature ta (c) supply current i ss ( a) iout=10ma iout=1ma v in =3.5v v in =6v v in =13v
r1155x no.ea-270-150702 18 9) supply current vs. output current (c in = 0.1 f, c out = 4.7 f, ta = 25c) r1155x025b/r1155x001c r1155x050b r1155x120b 10) mode switching current vs. operating temperature (c in = 0.1 f, c out = 4.7 f) r1155x025b/r1155x001c r1155x050b 0 20 40 60 80 100 120 140 0.1 1.0 10.0 100.0 1000.0 output current i out (ma) supply current i ss ( a) iout=150ma ? 0.1ma fast mode to low power mode iout=0.1ma ? 150ma low power mode to fast mode 0 20 40 60 80 100 120 140 0.1 1.0 10.0 100.0 1000.0 output current i out (ma) supply current i ss ( a) iout=150ma ? 0.1ma fast mode to low power mode iout=0.1ma ? 150ma low power mode to fast mode 0 20 40 60 80 100 120 140 0.1 1.0 10.0 100.0 1000.0 output current i out (ma) supply current i ss ( a) iout=150ma ? 0.1ma fast mode to low power mode iout=0.1ma ? 150ma low power mode to fast mode 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -50-250 255075100 operating temperature ta (c) mode switching current i outh ,i outl (ma) iouth ioutl 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -50 -25 0 25 50 75 100 operating temperature ta (c) mode switching current i outh ,i outl (ma) iouth ioutl v in =3.5v v in =6v v in =13v v in =3.5v v in =6v
r1155x no.ea-270-150702 19 r1155x120b 11) input transient response (c out = 4.7 f, ta = 2 5 c ) r1155x025b r1155x025b r1155x050b r1155x050b 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -50 -25 0 25 50 75 100 operating temperature ta (c) mode switching current i outh ,i outl (ma) iouth ioutl 2.46 2.48 2.50 2.52 2.54 2.56 2.58 2.60 2.62 -4 0 4 8 121620242832 time t (ms) output voltage v out (v) - - - 2.5 3.5 4.5 5.5 input voltage v in (v) input voltage output voltage tr=tf=5 ? s, i out = 1ma 2.44 2.46 2.48 2.50 2.52 2.54 2.56 2.58 -20 0 20 40 60 80 100 120 140 160 time t ( s) output voltage v out (v) - - 2.5 3.5 4.5 5.5 input voltage v in (v) input voltage output voltage tr=tf=5 ? s, i out = 20ma 4.95 4.97 4.99 5.01 5.03 5.05 5.07 5.09 5.11 5.13 -4 0 4 8 12 1620242832 time t (ms) output voltage v out (v) - 5 6 7 8 input voltage v in (v) input voltage output voltage tr=tf=5 ? s, i out = 1ma 4.91 4.93 4.95 4.97 4.99 5.01 5.03 5.05 5.07 5.09 -100 0 100 200 300 400 500 600 700 800 time t ( s) output voltage v out (v) - 5 6 7 8 input voltage v in (v) input voltage output voltage tr=tf=5 ? s, i out = 20ma v in =13v
r1155x no.ea-270-150702 20 r1155x120b r1155x120b 12) load transient response (c out = 4.7 f, ta = 2 5 c ) r1155x025b r1155x025b r1155x050b r1155x050b 11.86 11.91 11.96 12.01 12.06 12.11 12.16 12.21 -0.4 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 time t (ms) output voltage v out (v) 12 13 14 15 input voltage v in (v) input voltage output voltage tr=tf=5 ? s, i out = 1ma 11.91 11.93 11.95 11.97 11.99 12.01 12.03 12.05 12.07 12.09 -100 0 100 200 300 400 500 600 700 800 time t ( s) output voltage v out (v) 12 13 14 15 input voltage v in (v) input voltage output voltage tr=tf=5 ? s, i out = 20ma 2.38 2.40 2.42 2.44 2.46 2.48 2.50 2.52 2.54 2.56 2.58 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 time t (ms) output voltage v out (v) 0 10 20 output current i out (ma) output current 1ma <=> 10ma output voltage tr=tf=0.5 ? s, v in = 5.5v 2.37 2.41 2.45 2.49 2.53 2.57 2.61 2.65 2.69 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 time t (ms) output voltage v out (v) 0 50 100 150 output current i out (ma) output current 50ma <=> 100ma output voltage tr=tf=0.5 ? s, v in = 5.5v 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 time t (ms) output voltage v out (v) 0 10 20 output current i out (ma) output current 1ma <=> 10ma output voltage tr=tf=0.5 ? s, v in = 8v 4.84 4.89 4.94 4.99 5.04 5.09 5.14 5.19 5.24 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 time t (ms) output voltage v out (v) 0 50 100 150 output current i out (ma) output current 50ma <=> 100ma output voltage tr=tf=0.5 ? s, v in = 8v
r1155x no.ea-270-150702 21 r1155x120b r1155x120b 13) ce input voltage vs. output voltage vs. inrush current (c in = 0.1 f, c out = 4.7 f, ta = 25c) r1155x025b r1155x050b r1155x120b 11.60 11.70 11.80 11.90 12.00 12.10 12.20 12.30 12.40 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 time t (ms) output voltage v out (v) 0 10 20 output current i out (ma) output current 1ma <=> 10ma output voltage tr=tf=0.5 ? s, v in = 14v 11.67 11.77 11.87 11.97 12.07 12.17 12.27 12.37 12.47 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 time t (ms) output voltage v out (v) 0 50 100 150 output current i out (ma) output current 50ma <=> 100ma output voltage tr=tf=0.5 ? s, v in = 14v 0 1 2 3 4 5 6 -50 0 50 100 150 200 250 time t ( s) input output voltage (v) 0 50 100 150 200 250 300 inrush current (ma) output voltage ce input voltage inrush current v in =5.5v 0 1 2 3 4 5 6 7 8 9 -50 0 50 100 150 200 250 time t ( s) input output voltage (v) 0 50 100 150 200 250 300 350 400 450 inrush current (ma) output voltage ce in p ut volta g e inrush current v in =8v 0 2 4 6 8 10 12 14 16 -50 0 50 100 150 200 250 time t ( s) input output voltage (v) 0 50 100 150 200 250 300 350 400 inrush current (ma) output voltage ce input voltage inrush current v in =15v
power dissipation so t -23-5 ver. a i power dissipation (p d ) of the package is dependent on pcb mate rial, layout, and environmental conditions. the following conditions are used in this meas urement. this data is taken from sot-23-6. measurement conditions standard land pattern environment mounting on board (wind velocity = 0 m/s) board material glass cloth epoxy plastic (double-sided) board dimensions 40 mm x 40 mm x 1.6 mm copper ratio top-side: approx. 50%, back-side: approx. 50% through-holes ? 0.5 mm x 44 pcs measurement result (ta = 25 ? c, tjmax = 125 ? c) standard land pattern free air power dissipation 420 mw 250 mw thermal resistance ? ja = (125 - 25 ? c) / 0.42 w = 238 ? c/w 400 ? c/w power dissipation (mw) vs. temperature ( c) measurement board pattern ic mount area (unit: mm) 40 40 0 100 200 300 400 500 600 0 25 50 75 100 125 150 ambient temperature (c) power dissipation pd (mw) 250 420 105 free air on board
package dimensions so t -23-5 ver. b i 2.90.2 1.90.2 (0.95) (0.95) 5 4 1 2 3 1.6 - 0.1 +0.2 2.80.3 0.40.1 0.80.1 1.10.1 0 0.1 0.15 - 0.05 +0.1 (unit: mm) 0.2min. sot-23-5 package dimensions
power dissipation so t -89-5 ver. a i power dissipation (p d ) of the package is dependent on pcb materi al, layout, and environmental conditions. the following conditions are used in this measurement. measurement conditions high wattage land pattern standard land pattern environment mounting on board (wind velocity = 0 m/s) mounting on board (wind velocity = 0 m/s) board material glass cloth epoxy plastic (doubl e-sided) glass cloth epoxy plastic (double-sided) board dimensions 30 mm x 30 mm x 1.6 mm 50 mm x 50 mm x 1.6 mm copper ratio top-side: approx. 20%, back-side: approx. 100% top-side: approx. 10%, back-side: approx. 100% through-hole ? 0.85 mm x 10 pcs - measurement result (ta = 25 ? c, tjmax = 125 ? c) high wattage land pattern standard land pattern free air power dissipation 1300 mw 900 mw 500 mw thermal resistance 77oc/w 111oc/w 200oc/w power dissipation (mw) vs. temperature ( c) measurement board pattern 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 0 25 50 75 100 125 150 ambient temperature (c) power dissipation p d (mw) 105 free air on board (standard land pattern) on board (high wattage land pattern) 30 7.5 15 30 7.5 50 50 high wattage standard ic mount area (unit: mm) 15
package dimensions so t -89-5 ver. c i 1.50.1 1.50.1 0.470.1 0.420.1 0.420.1 1.50.1 0.40.1 0.40.1 0.1 s s 0.30.2 0.30.2 4 5 3 2 1 bottom view 0.420.1 4.50.1 1.60.2 4.350.1 2.50.1 0.40.3 5 4 1 2 3 1.0 1.000.2 (unit: mm) sot-89-5 package dimensions
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