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njw4185 - 1 - ver.2013-04-17 1 2 3 4 5 3 high voltage io=500ma low dropout regulator general description ? package outline the njw4185 is a high voltage and low current consumption low dropout regulator. njw4185 is mounted to to-252-5 package and corresponded to low esr capacitor (mlcc). the wide input range makes njw4185 suitable for a car accessory, industrial supplies, battery equipment and various applications. features wide operating voltage range 4.0v ~ 40v low current consumption 55a(typ.) correspond to low esr capacitor (mlcc) output current i o (min.)=500ma output voltage range 2.0v to 15.0v high precision output v o 1.0% on/off function internal thermal overload protection internal over current protection package outline to-252-5 pin configuration pin function 1. v in 2. control 3. gnd 4. n.c. 5. v out njw4185dl3 block diagram current limit thermal protection bandgap reference v in v out gnd control njw4185dl3
njw4185 - 2 - ver.2013-04-17 output voltage rank list device name v out njw4185dl3-33 3.3v NJW4185DL3-05 5.0v njw4185dl3-08 8.0v njw4185dl3-15 15.0v absolute maximum ratings (ta=25 c) parameter synbol ratings unit input voltage v in -0.3 to +45 v control voltage v cont -0.3 to +45 v output voltage v out -0.3 to v in +17 v power dissipation p d 1190 (*1) 3125 (*2) mw junction temperature t j -40 to +150 c operating temperature topr -40 to +85 c storage temperature tstg -40 to +150 c (*1): mounted on glass epoxy board. (76.2 114.3 1.6mm:based on eia/jdec standard size, 2layers, cu area 100mm 2 ) (*2): mounted on glass epoxy board. (76.2 114.3 1.6mm:based on eia/jdec standard, 4layers) (for 4layers: applying 74.2 x 74.2mm inner cu area and thermal via hole to a board based on jedec standard jesd51-5) input voltage range v in =4.0v ? 40v
njw4185 - 3 - ver.2013-04-17 electrical characteristics unless otherwise noted, v o 3.0v: v in =v o +1v, c in =1.0f, c o =2.2f, ta=25 c v o <3.0v: v in =4.0v, c in =1.0f,co=4.7f, ta=25 c parameter symbol test condition min. typ. max. unit output voltage v o i o =30ma -1.0% - +1.0% v quiescent current i q i o =0ma, except i cont - 55 90 a quiescent current at control off i q (off) v cont =0v - - 1 a output current i o v o 0.9 500 - - ma line regulation ? v o / ? v in v in = v o +1v to 40v, i o =30ma (v o 3v) v in = 4v to 40v, i o =30ma (v o < 3v) - - 0.03 %/v load regulation ? v o / ? i o i o =0ma to 500ma - - 0.006 %/ma v o =3.3v - 62 - v o =5.0v - 60 - v o =8.0v - 55 - ripple rejection rr v in = v o +1v ,ein=200mvrms, f=1khz, i o =10ma v o =15v - 50 - db dropout voltage(*3) ? v i o i o =300ma - 0.27 0.42 v average temperature coefficient of output voltage ? v o / ? ta ta = 0 t o 8 5 c, i o =30ma - 50 - ppm/ c control current i cont v cont =1.6v - 1 3 a control voltage for on-state v cont(on) 1.6 - - v control voltage for off-state v cont(off) - - 0.6 v (*3):the output voltage excludes under 3.8v the above specification is a common spec ification for all output voltages. therefore, it may be different from the indivi dual specification for a specific output voltage. power dissipation vs. ambient temperature njw4185dl3 y powerdissipation (topr=-40~+85c,tj=150c) 0 500 1000 1500 2000 2500 3000 3500 -50 -25 0 25 50 75 100 125 150 temperature : ta(c) power dissipation p d (mw) on 4 layers board on 2 layers board
njw4185 - 4 - ver.2013-04-17 test circuit njw4185 v in v in v out control gnd 1.0f i in i cont v cont i out v o u v v a a *4 2.2f (ceramic) *4 : vo<3.0v version : co=4.7 f (ceramic) typical application ? in the case where on/off control is not required njw4185 v in v out control gnd 1.0f v out v in r *5 2.2f *5 : vo<3.0v version : co=4.7 f connect control pin to v in pin ? in use of on/off control njw4185 v in v out control gnd 1.0f v out v in r *6 2.2f *6 : vo<3.0v version : co=4.7 f state of control pin: ? ?h? output is enabled. ? ?l? or ?open? output is disabled.
njw4185 - 5 - ver.2013-04-17 *in the case of using a resistance "r" between v in and control. if this resistor is inserted, it can reduce the control current when the control voltage is high. the applied voltage to control pin should set to consider voltage drop through the resistor ?r? and the minimum control voltage for on-state. the v cont (on) and i cont have temperature dependence as shown in the "control current vs. temperature" and " control voltage vs. temperature" characte ristics. therefore, the resistance "r" s hould be selected to consider the temperature characteristics. *input capacitor c in input capacitor c in is required to prevent oscillation and reduce po wer supply ripple for applications when high power supply impedance or a long power supply line. therefore, use the recommended c in value (refer to conditions of electric characteristic) or larger and should connect between gnd and v in as shortest path as possible to avoid the problem. *output capacitor c o output capacitor (c o ) will be required for a phase compensation of the internal error amplifier. the capacitance and the equivalent se ries resistance (esr) influence to stable operation of the regulator. use of a smaller c o may cause excess output noise or oscillation of the regulator due to lack of the phase compensation. on the other hand, use of a larger c o reduces output noise and ripple output, and also improves output transient response when rapid load change. therefore, use the recommended c o value (refer to conditions of electric characteristic) or larger and s hould connect between gnd and v out as shortest path as possible for stable operation the recommended capacitance depends on the output voltage rank. especially, low voltage regulator requires larger c o value. in addition, you should consider va ried characteristics of capacitor (a frequency characterist ic, a temperature characteristic, a dc bias characteristic and so on) and unevenness peculiar to a capacitor supplier enough. when selecting c o, recommend that have withstand voltage margin against output voltage and superior temperature characteristic.
njw4185 - 6 - ver.2013-04-17 *the notes of the evaluation when output pin is shorted to gnd when evaluated short circuit test, th e ic may break down because of regenerated energy by the parasitic inductance included in wiring pattern. it phenomenon appears conspicuously when output voltage is high(vo=8.0v or more)or connected to inductive load. in case of short circuit in actual applic ation, not likely to destr uction of ic because of some of resistance exist between load. if happened above phenomenon by the short circuit test wi th the actual application, recommend connecting schottky barrier diode (sbd) between vo pin and the gnd or using output condensers that have esr more than 2ohrm like a tantalum or aluminum electrolyt ic capacitor.(see below figure) (a)in case of insert schottky barrier diode between output pin - gnd njw4185 v in v out gnd v out v in sbd (b) in case of using the electrolysis condenser or insert series resistance njw4185 v in v out gnd v out v in connecting resistance(2ohrm or more)in series. (in case of esr of c out is low)
njw4185 - 7 - ver.2013-04-17 typical chara cteristics njw4185_5.0v output voltage vs. input voltage 4.7 4.8 4.9 5 5.1 5.2 5.3 4.6 4.8 5 5.2 5.4 5.6 5.8 6 input voltage v in (v) output voltage v o (v) @:ta=25c y co=2.2uf(ceramic) io=0ma io=30ma io=500ma njw4185_5.0v ground pin current vs. output current 0 100 200 300 400 500 600 0 100 200 300 400 500 600 700 output current i o (ma) ground pin current i gnd (ua) @:ta=25c v in =6.0v y co=2.2uf(ceramic) njw4185_5.0v quiescent current vs. input voltage 0 50 100 150 200 250 300 350 400 450 500 550 600 0 5 10 15 20 25 30 35 40 input voltage v in (v) quiescent current i q (ua) @:ta=25c y no output load y co=2.2uf( cer amic ) njw4185_5.0v output voltage vs. control voltage 0 1 2 3 4 5 6 0 0.5 1 1.5 2 control voltage v cont (v) output voltage v o (v) @:ta=25c yy v in =6.0v y co=2.2uf(ceramic) yy no load rc =0 rc=50k ? rc=100k ? njw4185_5.0v control current vs. control voltage 0 10 20 30 40 50 60 70 80 0 5 10 15 20 25 30 35 40 control voltage v cont (v) control current i cont (ua) @:ta=25c y vin=6.0v y co=2.2uf no load rc =0 rc =50k ? rc =100k ? njw4185_5.0v output volatge vs. output current 0 1 2 3 4 5 6 7 0 250 500 750 1000 1250 1500 output current io (ma) output voltage vo (v) @:co=2.2uf(ceramic) vin=6.0v ta=-50c ta=25c ta=150c
njw4185 - 8 - ver.2013-04-17 njw4185_5.0v dropout voltage vs. output current 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 100 200 300 400 500 600 700 output current i o (ma) dropout voltage dv i-o (v) @:ta=25c co=2.2uf(ceramic) njw4185_5.0v ripple rejection ratio vs. frequency 0 10 20 30 40 50 60 70 80 90 100 10 100 1000 10000 100000 frequency f (hz) ripple rejection ratio rr (db) @:ta=25c y vin=6.0v y co=2.2uf ein=200mvrms io=0 io=10ma io=30ma io=100ma io=500ma njw4185_5.0v ripple rejection ratio vs. output current 0 10 20 30 40 50 60 70 80 90 100 0.001 0.01 0.1 1 10 100 1000 output current i o (ma) ripple rejection ratio rr (db) @:ta=25c y co=2.2uf ein=200mvrms vin=6.0v,f=1khz vin=6.0v,f=10khz njw4185_5.0v equivalent series resistance vs. output current 0.001 0.01 0.1 1 10 100 0.001 0.01 0.1 1 10 100 1000 output current i o (ma) equivalent series resistance esr (
) @:ta=25c vin=6.0v co=2.2uf stable region njw4185_5.0v peak output current vs. input voltage 0 200 400 600 800 1000 1200 0 5 10 15 20 25 30 35 40 input voltage v in (v) peak output current i opeak (ma) @:ta=25c vo=vo0.9 co=2.2uf(ceramic) njw4185_5.0v load regulaton vs. output current -240 -220 -200 -180 -160 -140 -120 -100 -80 -60 -40 -20 0 0 100 200 300 400 500 600 700 output current io (ma) load regulation dvo/dio ( ? mv) @:ta=25c vin=6.0v y co=2.2uf(ceramic)
njw4185 - 9 - ver.2013-04-17 njw4185_5.0v output voltage vs. temperature 4.8 4.85 4.9 4.95 5 5.05 5.1 5.15 5.2 -50 0 50 100 150 temperature ta ( ? ) output voltage v o (v) @:co=2.2uf(ceramic) vin=6.0v io=500ma io=30ma io=0ma njw4185_5.0v control voltage vs. temperature 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 -50 0 50 100 150 temperature ta ( ? ) control voltage v cont (v) @:co=2.2uf(ceramic) vin=6.0v no load njw4185_5.0v control current vs. temperature 0 0.5 1 1.5 2 2.5 3 3.5 4 -50 0 50 100 150 temperature ta ( ? ) control current i cont (a) @:co=2.2uf(ceramic) vin=6.0v v cont =1.6v njw4185_5.0v peak output current vs. temperature 0 300 600 900 1200 1500 -50 0 50 100 150 temperature ta ( ? ) output current i peak (ma) @:co=2.2uf(ceramic) vo=4.5v vin=40v vin=6.0v njw4185_5.0v short cuircuit current vs. temperature 0 100 200 300 400 500 600 700 800 900 1000 -50 0 50 100 150 temperature ta ( ? ) output current i short (ma) vin=40v vin=6.0v @:co=2.2uf(ceramic) vo=0v njw4185_5.0v line regulation vs. temperature -0.05 -0.025 0 0.025 0.05 -50 0 50 100 150 temperature ta ( ? ) line regulation ? v o / ? v in (%/v) @:co=2.2uf(ceramic) vin=6.0~40v io=30ma
njw4185 - 10 - ver.2013-04-17 njw4185_5.0v load regulation vs. temperature -0.05 -0.025 0 0.025 0.05 -50 0 50 100 150 temperature ta ( ? ) load regulation ? v o / ? i o (%/ma) @:co=2.2uf(ceramic) vin=6.0v io=0~500ma njw4185_5.0v output voltage vs. temperature 0 1 2 3 4 5 6 -50 0 50 100 150 200 temperature ta ( ? ) output voltage v o (v) io=500ma io=30ma io=0ma @:co=2.2uf(ceramic) vin=6.0v njw4185_5.0v quiescent current vs. temperature 0 10 20 30 40 50 60 70 80 90 100 -50 0 50 100 150 temperature ta ( ? ) quiescent current i q (a) @:co=2.2uf(ceramic) vin=6.0v njw4185_5.0v dropout voltage vs. temperature 0 0.2 0.4 0.6 0.8 1 1.2 1.4 -50 0 50 100 150 temperature ta ( ? ) dropout voltage v i-o (v) @:co=2.2uf(ceramic) io=300ma io=500ma io=100ma
njw4185 - 11 - ver.2013-04-17 [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. njw4185_5.0v input transient response 0 40 80 120 160 200 time t(us) input voltage v in (v) output voltage v out (v) input voltage output voltage 8 7 6 5 4 3 2 1 0 5.6 5.5 5.4 5.3 5.2 5.1 5.0 4.9 4.8 @:ta=25c vin=6.0-7.0v io=30ma co=2.2uf 0 20 40 60 80 100 time t(s) control voltage v cont (v) output voltage v out (v) control voltage output voltage 12 10 8 6 4 2 0 5 0 @:ta=25c vin=6.0v io=0ma co=2.2uf njw4185_5.0v on/off transient response without load control voltage v cont (v) output voltage v out (v) control voltage output voltage 12 10 8 6 4 2 0 5 0 0 4 8 12 16 20 time t(ms) @:ta=25c vin=6.0v io=30ma co=2.2uf njw4185_5.0v on/off transient response njw4185_5.0v load transient response output voltage:v out (v) output current:i out (ma) output current output voltage 5.5 5.4 5.3 5.2 5.1 5.0 4.9 0 200 400 600 800 1000 time:t(ms) 300 200 100 0 -100 -200 -300 @:ta=25c vin=6.0v io=0-100ma co=2.2uf

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