NJM2817 - 1 - ver.2010-07-12 low dropout voltage regulator general description package outline the NJM2817 is a low dropout voltage regulator with on/off control. advanced bipolar technology ac hieves low noise, high ripple rejection and low quiescent current. it delivers up to 5v/3a output power with the maximum input voltage of 8v. the NJM2817 is suitable for audio/ video and digital applications. features high ripple rejection 65db typ. (f=1khz,3v version) output noise voltage vno=42 vrms typ. (vo=3v version) output capacitor with 4.7 f ceramic capacitor (vo 2.1v) output current io(max.)=3.0a high precision output vo 1.0% low dropout voltage 0.12v typ. (io=1.5a, 3.0v version) on/off control internal short circuit current limit internal thermal overload protection package outline to-252-5 pin configuration NJM2817dl3 equivalent circuit v out gnd v in bandgap reference control current limit thermal protection 1. v in 2. control 3. vo 4. n.c. 5. gnd NJM2817dl3 1 2 3 4 5 3
NJM2817 - 2 - ver.2010-07-12 output voltage rank list device name v out NJM2817dl3-18 1.8v NJM2817dl3-21 2.1v NJM2817dl3-03 3.0v NJM2817dl3-05 5.0v output voltage options available : 1.8 ~ 5.0v (0.1v step) absolute maximum ratings (ta=25 c) parameter symbol ratings unit input voltage v in +8 v control voltage v cont +8 v power dissipation p d 1190(*1) 3125(*2) mw operating temperature topr -40 +85 c storage temperature tstg -40 +150 c (*1) : mounted on glass epoxy board. (76.2 114.3 1.6mm:eia/jdec standard size, 2layers, copper area 100mm 2 ) (*2) : mounted on glass epoxy board. (76.2 114.3 1.6mm:eia/jdec standard size, 4layers, (4layers inner foil : 74.2 x 74.2mm applying thermal via holes to a board based on jedec standard jesd51-5) operating voltage v in =v o + ? v i-o ~ +7v (in case of 2.1v v o 5.0v version) v in =2.3v ~ +7v (in case of v o < 2.1v version) electrical characteristics (v in =vo+1v, c in =4.7f(c in =10f:vo<2.1v), co=4.7f(co=33f : vo<2.1v), ta=25 c) parameter symbol test condition min. typ. max. unit output voltage vo io=100ma -1.0% - +1.0% v quiescent current i q io=0ma, except i cont - 700 1200 a quiescent current at control off i q (off) v cont =0v - - 1 a output current io vo x 0.9v 3 5 - a line regulation ? vo/ ? v in v in =vo+1v 7v, io=100ma - 0.01 0.05 %/v load regulation ? vo/ ? io io=0 3.0a - 0.05 0.3 %/a 2.1v vo < 2.5v - 0.16 0.27 2.5v vo < 2.8v - 0.13 0.22 2.8v vo < 3.4v - 0.12 0.20 dropout voltage(*2) ? v i -o io=1.0a 3.4v vo 5.0v - 0.11 0.18 v ripple rejection rr ein=200mvrms,f=1khz, io=100ma,vo=3v version - 65 - db average temperature coefficient of output voltage ? vo/ ? ta ta = 0 85 c, io=100ma - 50 - ppm/ c output noise voltage v no f=10hz 80khz, io=100ma, vo=3v version - 42 - vrms control current i cont v cont =1.6v - 3 12 a control voltage for on-state v cont(on) 1.6 - - v control voltage for off-state v cont(off) - - 0.6 v io 1.5a, vo0.96 2.3 - - v minimum input voltage v in (min.) vo<2.1v 1.5a NJM2817 - 3 - ver.2010-07-12 power dissipation vs. ambient temperature test circuit NJM2817 v in v in v out control gnd i in i cont v cont i out v o u v v a a *3 4.7f (ceramic) *3 : vo < 2.1v version : c in =10 f vo < 2.1v version : co=33 f(ceramic) *3 4.7f NJM2817dl3 powerdissipation (topr=-40~+85c,tj=150c) 0 500 1000 1500 2000 2500 3000 3500 -50 -25 0 25 50 75 100 temperature : ta(c) power dissipation p d (mw) on 4 layers board on 2 layers board
NJM2817 - 4 - ver.2010-07-12 typical application 1 in the case where on/off control is not required: NJM2817 v in v out control gnd v out v in r *4 4.7f *4 : vo < 2.1v version : c in =10 f vo < 2.1v version : co=33 f *4 4.7f connect control terminal to v in terminal 2 in use of on/off control: NJM2817 v in v out control gnd v out v in r *4 4.7f *4 : vo < 2.1v version : c in =10 f vo < 2.1v version : co=33 f *4 4.7f 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 resi stance "r" should be carefully selected to ensure the control voltage exceeds the v cont (on) over the required temperature range.
NJM2817 - 5 - ver.2010-07-12 input capacitance c in input capacitance c in is required to prevent oscillation and reduce po wer supply ripple for applications with high power supply impedance or a long power supply line. use the c in value of 4.7f greater to avoid the problem. c in should connect between gnd and v in as short as possible. output capacitance c o output capacitor (co) is required for a phase compensation of the internal error amplifier. the capacitance and the equivalent series resistance (esr) in fluence stability of the regulator. if use a smaller co, it may cause excess output noise or oscillation of the regulator due to lack of the phase compensation. therefore, use co with the recommende d capacitance or greater value and connect between vo terminal and gnd terminal with minimal wiring. the recommended capacitance depends on th e output voltage. low voltage regulator requires greater value of the co. thus, check the recommended c apacitance for each output voltage. use of a greater co reduces output noise and ripple output , and also improves transient response of the output voltage against rapid load change. this product is designed to work with any capacitor in cluding a low esr capacitor for the co; however, refer "equivalent series resistance vs. output current" and choose suitable capacitor. when distance from an ic to load is long, an ic may cause malfunction by wiring capacity and an l ingredient please use it after having evaluated it enough.
NJM2817 - 6 - ver.2010-07-12 typical characteristics NJM2817_5.0v dropout voltage vs.output current 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0 500 1000 1500 2000 2500 3000 output current : io (ma) dropout voltage : dvi_o (v) @:ta=25c vin=6.0v co=4.7f(ceramic) NJM2817_5.0v output voltage vs.control voltage 0 1 2 3 4 5 6 00.511.522.5 control voltage (v) output voltage (v) rc =0 ? rc=50k ? rc=100k ? @:ta=25c vin=6.0v co=4.7f(ceramic) io=500ma NJM2817_5.0v control current vs.control voltage 0 10 20 30 40 50 0123456 control voltage (v) control current (ua) rc =0 ? rc=50k ? rc=100k ? @:ta=25c vin=6.0v co=4.7f(ceramic) io=500ma NJM2817_5.0v ground pin current vs.outputcurrent 0 1 2 3 4 5 0 500 1000 1500 2000 2500 3000 output currnet : io (ma) ground pin current : i gnd (m a @:ta=25c vin=6.0v co=4.7f(ceramic) NJM2817_5.0v output voltage vs.output current 0 1 2 3 4 5 6 02468 output current : io (a) output voltage : vo (v) @:ta=25c vin=6.0v co=4.7f(ceramic) NJM2817_5.0v output voltage vs.input voltage 4.7 4.8 4.9 5 5.1 5.2 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 input voltage : vin (v) output voltage : vo (v) io=0ma io=500ma io=3000a @:ta=25c co=4.7f(ceramic) io=2000a
NJM2817 - 7 - ver.2010-07-12 NJM2817_5.0v ripple rejection ratio vs.frequency 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 100 frequency :f(khz) ripple rejection :rr(db io=0a io=500ma @:ta=25c vin=6.0v ein=200mvrms cin=4.7f(cera) co=4.7f(cera) io=2000ma NJM2817_5.0v load regulation vs.output current -50 -40 -30 -20 -10 0 0 1000 2000 3000 4000 output current : io (ma) load regulation : dvo/dio (mv) @:ta=25c vin=6.0v co=4.7f(ceramic) NJM2817_5.0v peak output current vs.input voltage 0 1 2 3 4 5 6 7 8 6 7 8 9 10 11 12 input voltage : vin (v) peak output current : io max (ma ) @:ta=25c vo=4.5v co=4.7f(ceramic) NJM2817_5.0v quiesient current vs.input voltage 0 500 1000 1500 2000 024681012 input voltage:vin (v) quiescent current:iq (a ) @:ta=25c output is open co=4.7f(ceramic) inculding icont NJM2817_5.0v output noize voltage vs.output current 0 20 40 60 80 100 0.001 0.1 10 1000 output current :io(ma) output noise voltage :vn (vrms) @ta=25c vin=6.0v cin=4.7f(ceramic) co=4.7f(ceramic) lph:80khz NJM2817_5.0v ripple rejection ratio vs.frequency 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 100 frequency :f(khz) ripple rejection :rr(db io=0a io=500ma @:ta=25c vin=6.0v ein=200mvrms cin=4.7f(ceramic) co=4.7f(ceramic) io=2000ma
NJM2817 - 8 - ver.2010-07-12 NJM2817_5.0v dropout voltage vs.temperature 0.00 0.10 0.20 0.30 0.40 0.50 -50 0 50 100 150 temperature:ta (c) dropout voltage : dvi-o (v ) 1500ma 2000ma 2500ma 3000ma @:io=100m a co=4.7f(ceram ic) co=4.7f(ceram ic) NJM2817_5.0v output voltage vs.temperature 4.80 4.90 5.00 5.10 5.20 -50 0 50 100 150 temperature:ta (c) output voltage : vo (v ) @:vin=6.0v io=100m a co=4.7f(ceram ic) co=4.7f(ceram ic) NJM2817_5.0v control voltage vs.temperature 0.0 0.5 1.0 1.5 2.0 -50 0 50 100 150 temperature:ta (c) control voltage(off) :vcont-off (v) @:vin=6.0v io=100m a cin=4.7f(ceramic) co=4.7f(ceram ic) NJM2817_5.0v quiescent current vs.temperature 0 200 400 600 800 1000 -50 0 50 100 150 temperature:ta (c) quiescent current : i q (ma) @:vin=6.0v output is open cin=4.7f(ceramic) co=4.7f(ceram ic) including icont NJM2817_5.0v short circuit current vs.temperature 0.0 0.5 1.0 1.5 2.0 -50 0 50 100 150 temperature:ta (c) short circuit current : isc (ma ) @:vin=6.0v output is short to ground cin=4.7f(ceramic) co=4.7f(ceramic) NJM2817_5.0v equivalent serise resistance vs. output current 0.01 0.1 1 10 100 0.001 0.01 0.1 1 10 100 1000 output current:io(ma) equivalent serise resistance:esr( ? stable region @:ta=25c vin=6.0v cin=4.7f(ceramic) co=4.7f(ceramic)
NJM2817 - 9 - ver.2010-07-12 NJM2817_5.0v line regulation vs.temperature -0.10 -0.05 0.00 0.05 0.10 -50 0 50 100 150 temperature:ta (c) line regulation : dvo/dvin (%/v ) @:vin=6-7v io=100m a co=4.7f(ceram ic) co=4.7f(ceram ic) NJM2817_5.0v load regulation vs.temperature 0.00 0.05 0.10 0.15 0.20 0.25 0.30 -50 0 50 100 150 temperature:ta (c) load regulation : dvo/dio (%/ma) io=0-3a io=0-2a @:vin=6.0v cin=4.7f(ceramic) co=4.7f(ceram ic) NJM2817_5.0v output voltage vs.temperature 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -50 0 50 100 150 200 temperature:ta (c) output voltage : vo (v ) @:vin=6.0v io=100ma cin=4.7f(ceramic) co=4.7f(ceram ic)
NJM2817 - 10 - ver.2010-07-12 [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. on/off transient response -30 04 8 12 -2 control voltage:vcont(v) 10 5 8 0 6 -5 4 -10 12 -15 output voltage:vo(v) 14 2 0 10 time:t(ms) -20 -25 20 NJM2817_5.0v 16 control voltage o u t pu t v o lt age @:ta=25c vin=6.0v io=100ma co=4.7f(cera) 5 . 1 1 . 5 5.08 1 5.06 0.5 5.04 0 5.02 -0.5 5-1 4.98 -1.5 4.96 -2 4.94 -2.5 0 40 80 120 160 200 NJM2817_5.0v load transient response out p ut current out p ut volta g e @:ta=25c vin=6.0v io=500-1000ma co=4.7f(cera) on/off transient respons without load -30 010 time:t(s) 10 2468 control voltage:vcont(v) 5 0 -5 -10 -15 -20 -25 NJM2817_5.0v 7 1 5 4 3 2 6 0 output voltage:vo(v) -1 o u t pu t v o lt age control voltage @:ta=25c vin=6.0v io=0ma co=4.7f(cera) input transient response 0 0 output voltage:vo(v) time:t(s) 5.3 160 200 4.9 5.05 5 4.95 5.25 5.2 5.15 5.1 5 4 1 3 2 NJM2817_5.0 v 40 80 120 input voltage:v in (v) 8 7 6 input voltage o u t pu t v o lt age @:ta=25c vin=6.0v io=100ma cin=4.7uf(cera) co=4.7f(cera)
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