njm2892 -1- ver.2006-02-20 2ch low dropout voltage regulator general description package outline the njm2892 is a 2ch low dropout voltage regulator with on/off control. advanced bipolar technology achieves low noise, high ripple rejection and low quiescent current. features high ripple rejection 75db typ. (f=1khz vo=3v version) output noise voltage v no =45 vrms typ. output capacitor with 1.0 f ceramic capacitor (vo 2.7v) output current io(max.)=100ma x 2ch high precision output vo 1.0% low dropout voltage 0.1v typ. (io=60ma) on/off control internal short circuit current limit internal thermal overload protection bipolar technology package outline sot-23-6 (mtp-6 : 2.8x2.9x1.1mm) pin configuration njm2892f1 6 5 4 1 2 3 pin function 1. v out 2 2. gnd 3. v out 1 4. control1 5. v in 6. control2 njm2892f1
njm2892 - 2 - ver.2006-02-20 equivalent circuit output voltage rank list device name v out ch 1 ch 2 NJM2892F1-1515 1.5v 1.5v njm2892f1-1815 1.8v 1.5v njm2892f1-2121 2.1v 2.1v njm2892f1-2518 2.5v 1.8v njm2892f1-2618 2.6v 1.8v njm2892f1-2815 2.8v 1.5v njm2892f1-2818 2.8v 1.8v njm2892f1-0303 3.0v 3.0v njm2892f1-3328 3.3v 2.8v njm2892f1-3303 3.3v 3.0v njm2892f1-3333 3.3v 3.3v njm2892f1-0521 5.0v 2.1v njm2892f1-0533 5.0v 3.3v njm2892 v out 1 v in control1 v out 2 gnd control2 on/off control thermal protection bandgap reference on/off control
njm2892 - 3 - ver.2006-02-20 absolute maximum ratings (ta=25 c) parameter symbol ratings unit input voltage v in +14 v control voltage v cont +14(*1) v 350(*2) power dissipation p d sot-23-6 200(*3) mw operating temperature topr ? 40 +85 c storage temperature tstg ? 40 +125 c (*1): when input voltage is less than +14v, the absolute maximum control voltage is equal to the input voltage. (*2): mounted on glass epoxy board based on eia/jedec. (114.3x76.2x1.6mm: 2layers) (*3): device itself. operating voltage v in =+2.3 +14v (in case of vo<2.1v version) electrical characteristics (v in =vo+1v, c in =0.1 f, co=1.0 f: vo 2.7v (co=2.2 f : 1.8v njm2892 - 4 - ver.2006-02-20 test circuit typical application 1 in the case where on/off control is not required: connect control terminal to v in terminal i cont 1 v cont 1 v a v out 1 control1 gnd 0.1 f i in i out 1 v out 1 v a v in v out 2 i out 2 v out 2 v njm2892 v in 1.0 * 6 (ceramic) 1.0 * 6 (ceramic) i cont 2 v cont 2 v a control2 *6 1.8v njm2892 - 5 - ver.2006-02-20 2 in use of on/off control: state of control terminal: ? ?h? output is enabled. ? ?l? or ?open? output is disabled. in the case of using a resistance "r" between v in and control. the current flow into the control terminal while the ic is on state (i cont ) can be reduced when a pull up resistance "r" is inserted between v in and the control terminal. the minimum control voltage for on state (v cont (on) ) is increased due to the voltage drop caused by i cont and the resistance "r". the i cont is temperature dependence as shown in the "control current vs. temperature" characteristics. therefore, the resistance "r" should be carefully selected to ensure the control voltage exceeds the v cont (on) over the required temperature range. gnd 0.1 f v out 1 control1 v out 1 v in v in njm2892 v out 2 1.0 * 7 v out 2 r1 1.0 * 7 r 2 control2 *7 1.8v njm2892 - 6 - ver.2006-02-20 power dissipation vs. ambient temperature njm2892f1 power dissipation (topr=-40 +85 ,tj=125 ,p d =200mw(ta Q 25 )) 0 100 200 300 400 500 -50 -25 0 25 50 75 100 ambient temperature ta( ) p ower di ss i pat i on p d ( m w) device itself on board(114.376.21.6mm, fr-4)
njm2892 -7- ver.2006-02-20 electrical characteristics 2.7 2.8 2.9 3 3.1 3.2 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 output voltage : vo(v) input voltage : v in (v) njm2892_3.0v output voltage vs. input voltage @:ta=25 o c co =1 .0 f (ceramic) io=0a io=30ma io=100ma 0 0.5 1 1.5 2 2.5 3 3.5 4 0 50 100 150 200 output voltage : vo(v) njm2892_3.0v output volt age vs. output current @:ta=25 o c v in =4.0v co=1 f (ceramic) output current : io(ma) 0 5 10 15 0 20 40 60 80 100 120 140 ground pin current : i gnd (ma) njm2892_3.0v ground pin current v.s. output current @:ta=25 o c v in =4.0v co=1.0 f( cera mic) output current : i o (ma) 0 0.05 0.1 0.15 0.2 0.25 0.3 0 20406080100120 output current:io(ma) @:ta=25 o c co=1.0 f (ceramic) dropout voltage:dv i-o (v) njm2892_3.0v dropout voltage vs. output current 0 5 10 15 20 25 30 0123 control current : i cont ( a) control voltage : v cont (v) njm2892_3.0v control current vs. control voltage @:ta=25 o c v in =4 .0v co=1.0 f(ceramic) io=30ma rc=0 ? rc=50k ? rc=100k ? 0 0.5 1 1.5 2 2.5 3 3.5 4 00.511.522.53 output voltage : vo(v) control voltage : v cont (v) njm2892_3.0v output voltage vs. control voltage @:ta=25 o c v in =4 .0v co =1 .0 f(ceramic) io=30ma rc=0 ? rc=50k ? rc=100k ?
njm2892 - 8 - ver.2006-02-20 electrical characteristics -80 -70 -60 -50 -40 -30 -20 -10 0 0 50 100 150 load regulation : dvo/dio(mv) output current : io(ma) njm2892_3.0v load regulation vs. output current @:ta=25 o c v in =4 .0v co=1.0 f(ceramic) 0 500 1000 1500 2000 051015 quiescent current : i q ( a) njm2892_3.0v quiescent current v.s. input voltage @:ta=25 o c output is open. co=1.0 f (ceramic) including icont input voltage : v in (v) 0 20 40 60 80 100 0.001 0.01 0.1 1 10 100 output current : io(a) output noise voltage : vn ( vrms) njm2892_3.0v output noise voltage vs. output current @:ta=25 o c v in =4.0v lpf:80khz 1 10 100 1m 10m 100m co=1.0 f 20 30 40 50 60 70 80 90 10 0 10 100 1000 10 4 10 5 ripple rejection ratio : rr (db) frequency : f (hz) njm2892_3.0v ripple rejection ratio v.s. frequency io=0ma io=10ma io=30ma @:ta=25 o c v in =4.0v ein=200mvrms co=1.0 f (ceramic) cp=0.01 f 10 100 1k 10k 100k 0. 01 0.1 1 10 100 output current : io(a) @:ta=25 o c co=1.0 f (ceramic) cp=0.01 f equivalent serise resistance : esr ( ? ? ? ? ) njm2892_3.0v equivalent serise resistance vs. output current stable region 0.001 0. 01 0.1 110 10 0
njm2892 - 9 - ver.2006-02-20 electrical characteristics 0 0.05 0.1 0.15 0.2 0.25 0.3 -50 0 50 100 150 temperature : ta ( o c) njm2892_3.0v dropout voltage v.s. temperat ure dropout voltage:dv i-o (v) @:v in =4v io=60ma co=1 f(ceramic) 2.9 2.95 3 3.05 3.1 -50 0 50 100 150 output voltage vo (v) temperature ta ( o c) njm2892_3.0v output voltage v.s. temperat ure @:v in =4v io=30ma co=1 f (ceramic) 0 0.5 1 1.5 2 -50 0 50 100 150 control voltage : v cont(off) (v) temperat ure : ta ( o c) njm2892_3.0v control voltage v.s. temperature @:v in =4v io=30ma co=1 f( cera mic) 0 2 4 6 8 10 -50 0 50 100 150 control current : i cont ( a) temperat ure ta ( o c) njm 2892_3.0v control current v.s. temperature @:v in =4v output is open co=1 f(ceramic) v cont =1 .6v 0 50 100 150 200 250 -50 0 50 100 150 quiescent current : i q ( a) temperat ure : ta ( o c) njm2892_3.0v quiescent current v.s. temperature @:v in =4v output is open. co=1 f( ce ra mic) 0 50 100 150 200 -50 0 50 100 150 short circuit current : i sc (ma) temperat ure : ta ( o c) njm2892_3.0v short circuit current v.s. temperature @:v in =4 v output is short to ground. co=1 f( ce ra mic)
njm2892 - 1 0 - ver.2006-02-20 electrical characteristics -0.1 -0.05 0 0.05 0.1 -50 0 50 100 150 line regulation : dvo/dio (%/v) temperature : ta ( o c) njm2892_3.0v li ne regulation v.s. temperature @:dv in =4-9v io=30ma co=1 f(ce rami c) 0 0.005 0.01 0.015 0.02 0.025 0.03 -50 0 50 100 150 load regulation : dvo/dio (%/ma) temperature : ta ( o c) njm2892_3.0v load regul ati on v.s. temperat ure @:v in =4v io=0-60ma co=1 f (ceramic) 0 0.5 1 1.5 2 2.5 3 3.5 4 -50 0 50 100 150 200 output voltage vo (v) temperature ta ( o c) njm2892_3.0v output voltage v.s. temperature @:v in =4v io=30ma co=1 f (ceramic)
njm2892 -11- ver.2006-02-20 electrical characteristics -1 0 1 2 3 4 5 6 7 -30 -25 -20 -15 -10 -5 0 5 10 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 njm2892_3.0v on/off transient response without load output voltage : vo [v] contr ol voltage : v o [v] time : t [ s] control voltage output voltage @:ta=25 o c v in =4.0v co=1.0 f(ce rami c) io=0ma -1 0 1 2 3 4 5 6 7 -30 -25 -20 -15 -10 -5 0 5 10 -2024681012141618 njm2892_3.0v on/off transient response output voltage : vo [v] contr ol voltage : v o [v] time : t [ms] control voltage output voltage @:ta=25 o c v in =4.0v co=1.0 f(ce rami c) io=30ma 2.92 2.94 2.96 2.98 3 3.02 3.04 3.06 3.08 -1 0 1 2 3 4 5 6 7 -20 0 20 40 60 80 100 120 140 160 180 njm2892_3.0v line transient response output voltage : vo [v] inputo voltage : v in [v] time : t [ s] input voltage output voltage @:ta=25 o c co=1.0 f(ceramic) io=30ma 2.92 2.94 2.96 2.98 3 3.02 3.04 3.06 3.08 -250 -200 -150 -100 -50 0 50 100 150 -120 -100 -80 -60 -40 -20 0 20 40 60 80 njm2892_3.0v load transient response output voltage : vo [v] output current : io [ma] time : t [ s] output current output voltage @:ta=25 o c v in =4.0v co=1.0 f(ceramic) io=30ma [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.
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