njm2874/75/76 low dropout voltage regulator general description package outline njm2874/75/76 is a low dropout voltage regulator designed for cellular phone application. 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 vno=45 vrms typ. output capacitor with 1.0 f ceramic capacitor (vo 2.7v) output current io(max.)=150ma high precision output vo 1% low dropout voltage 0.10v typ. (io=60ma) on/off control (active high) internal short circuit current limit internal thermal overload protection bipolar technology package outline sot-23-5 pin configuration equivalent circuit v out thermal protection bandgap reference v in control gnd njm2874f/75f/76f pin function 1.control 1.v in 1.v out 2.gnd 2.gnd 2.gnd 3.nc 3.control 3.v in 4.v out 4.nc 4.control 5.v in 5.v out 5.nc 123 4 5 123 4 5 njm2874f njm2875f njm2876f
njm2874/75/76 output voltage rank list device name v out njm287 f21 2.1v njm287 f28 2.8v njm287 f03 3.0v njm287 f33 3.3v njm287 f05 5.0v 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-23-5 200(*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. (114.3x76.2x1.6mm: 2layer, fr-4) (*3):device itself electrical characteristics (v in =vo+1v, c in =0.1 f, co=1.0 f: vo 2.7v (co=2.2 f: vo 2.6v), ta=25 c) parameter symbol test condition min. typ. max. unit output voltage vo io=30ma -1.0% ? +1.0% v quiescent current i q io=0ma, expect icont ? 120 180 a quiescent current at control off i q(off) v cont =0v ? ? 100 na output current io vo-0.3v 150 200 - ma line regulation ? vo/ ? v in v in =vo+1v vo+6v, io=30ma ? ? 0.10 %/v load regulation ? vo/ ? io io=0 100ma ? ? 0.03 %/ma dropout voltage ? v i ? o io=60ma ? 0.10 0.18 v ripple rejection rr ein=200mvrms,f=1khz, io=10ma, vo=3v version ? 75 ? db average temperature coefficient of output voltage ? vo/ ? ta ta = 0 85 c, io=10ma ? 50 ? ppm/ c output noise voltage v no f=10hz 80khz, io=10ma, vo=3v version ? 45 ? vrms control voltage for on-state v cont(on) 1.6 ? ? v control voltage for off-state v cont(off) ? ? 0.6 v the above specification is a common specification for all output voltages. therefore, it may be different from the individual specification for a specific output voltage.
njm2874/75/76 test circuit njm287* v in v in v out control gnd 0.1 f i in i cont v cont i out v out v v a a 1.0 f *4 (ceramic) *4 vo 2.6v version: co=2.2 f(ceramic)
njm2874/75/76 typical application 1 in case that on/off control is not required: njm287* v in v out control gnd 0.1 f v out v in (0 300k ? ) 1.0 f *5 r *5 vo 2.6v version: co=2.2 f connect control terminal to v in terminal 2 in use of on/off control: njm287* v in v out control gnd 0.1 f v out v in 1.0 f *5 r *5 vo 2.6v version: co=2.2 f state of control terminal: ? ?h? output is enabled. ? ?l? or ?open? output is disabled. noise bypass capacitance cp noise bypass capacitance cp reduces noise generated by band-gap reference circuit. noise level and ripple rejection will be improved when larger cp is used. use of smaller cp value may cause oscillation. use the cp value of 0.01 f greater to avoid the problem. 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.
njm2874/75/76 power dissipation vs. ambient temperature njm2874/75/76f 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)
njm2874/75/76 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) njm287*_3.0v output voltage vs. input voltage @:ta=25 o c co=1 f (ceramic) io=0a io=30ma io=100ma 0 0.5 1 1.5 2 2.5 3 3.5 4 0 50 100 150 200 250 300 output voltage : vo(v) njm287*_3.0v output voltage vs. output current @:ta=25 o c v in =4v co=1 f (ceramic) output current : io(ma) 0 5 10 15 20 0 50 100 150 200 ground pin current : i gnd (ma) njm287*_3.0v ground pin current v.s. output current @:ta=25 o c v in =4.0v co=1.0 f (ceramic) output current : i o (ma) 0 0.05 0.1 0.15 0.2 0.25 0.3 0 50 100 150 200 output current:io(ma) @:ta=25 o c co=1.0 f (ceramic) dropout voltage:dv i-o (v) njm287*_3.0v drop out voltag e vs. ou tp ut current 0 5 10 15 20 25 30 0 0.5 1 1.5 2 2.5 3 3.5 4 control current : i cont ( a) control voltage : v cont (v) njm287*_3.0v control current vs. control voltage @: ta =2 5 o c v in =4.0v co=1.0 f (ceramic) io=30ma rc =0 ? rc=100k ? rc=50k ? 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 2 2.5 3 rc=0 ? output voltage : vo(v) control voltage : vcont(v) njm287*_3.0v output voltage vs. control voltage @:ta=25 o c v in =4.0v co=1.0 f (ceramic) io=30ma rc=100k ? rc =5 0k ?
njm2874/75/76 electrical characteristics -50 -40 -30 -20 -10 0 0 50 100 150 200 load regulation : dvo/dio (mv) output current : io(ma) njm287*_3.0v load regulation vs. output current @: ta =2 5 o c v in =4 .0v co=1.0 f (ceramic) 0 50 100 150 200 250 300 468101214 peak output current : io max (ma) njm287*_3.0v peak output current vs. input voltage @: ta =2 5 o c co=1 f (ceramic) input voltage : v in (v) 0 500 1000 1500 2000 0 5 10 15 qu iescent current : i q ( a) njm287*_3.0v quiescent current v.s. input voltage @:ta=25 o c output is open. co=1.0 f (ceramic) including ic ont input voltage : v in (v) 0 20 40 60 80 100 output current : io(ma) output noise voltage : vn ( vrms) njm287*_3.0v output noise voltage vs. output current co=2.2 f (ceramic) co =1 .0 f (ceramic) 0.001 0.01 0.1 110 100 @:ta=25 o c v in =4.0v lpf:100khz 20 30 40 50 60 70 80 90 100 ripple rejection ratio : rr (db) frequency : f (hz) njm287*_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) 10 100 1k 10k 100k 0.1 1 10 100 0.02 output curr ent : io(ma) @:ta=25 o c co=1.0 f (ceramic) equivalent serise resistance : esr( ? ? ? ? ) njm287*_3.0v equivalent serise resistance vs. output current stable region 0.001 0.01 0.1 110 100
njm2874/75/76 electrical characteristics 0 0.05 0.1 0.15 0.2 0.25 0.3 -50 0 50 100 150 temperature : ta ( o c) @:v in =4v io=60ma co=1.0 f (ceramic) njm287*_3.0v drop out voltag e v. s. temperature dropout voltage:dv i-o (v) 2.9 2.95 3 3.05 3.1 -50 0 50 100 150 output voltage vo (v) temperature ta ( o c) njm287*_3.0v output voltage v.s. temperature @:v in =4v io=30ma co=1.0 f (ceramic) 0 0.5 1 1.5 2 -50 0 50 100 150 control voltage : v cont(off) (v) temperature : ta ( o c) njm287*_3.0v control voltage v.s. temperature @:v in =4 v io=30ma co=1.0 f(ceramic ) 0 2 4 6 8 10 -50 0 50 100 control current : i cont ( a) temper at ur e ta ( o c) njm 287*_3.0v control current v.s. ambient temperature @:v in =4v output is open. co=1 .0 f(ceramic) v cont =1.6v 0 50 100 150 200 -50 0 50 100 150 qu iescent current : i q ( a) temperature : ta ( o c) njm287*_3.0v qu iescent current v. s. temperatu re @:v in =4 v output is open. co=1.0 f(ceramic ) 0 50 100 150 200 -50 0 50 100 150 short circuit current : i sc (ma) temperature : ta ( o c) njm287*_3.0v short circuit current v.s. temperature @:v in =4v output is short to ground. co=1.0 f(ceramic)
njm2874/75/76 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) njm287*_3.0v line regulation v.s. temperature @: dv in =4.0-9.0v io=30ma co=1 f( ceramic) 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) njm287*_3.0v lo ad regu latio n v. s. temp erature @:v in =4v io=0-100ma co=1.0 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) njm287*_3.0v output voltage v.s. temperature @:v in =4v io=30ma co=1.0 f (ceramic)
njm2874/75/76 electrical characteristics -1 0 1 2 3 4 5 6 7 -30 -25 -20 -15 -10 -5 0 5 10 012345 njm287*_3v on/off transient response without load output voltage : vo [v] control voltage : vo [v] time : t [s] control voltage output voltage @:ta=25 o c v in =4v co=1 f io=0ma -1 0 1 2 3 4 5 6 7 -30 -25 -20 -15 -10 -5 0 5 10 048121620 njm237*_3v on/off transient response output voltage : vo [v] control v oltage : v o [v] time : t [ms] control voltage output voltage @:ta=25 o c v in =4v co=1 f 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 0 40 80 120 160 200 njm287*_3v line transient response output voltage : vo [v] time : t [ s] input voltage output voltage input voltage : v in [v ] @:ta=25 o c co=1 f 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 04080120160200 njm287*_3v load transient response output voltage : vo [v] time : t [ s] output current output voltage output current : io [ma] @:ta=25 o c v in =4 v co=1 f(ceramic) [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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