www.德州仪器.com
NC
输出
2
1
在
EN
地
3
5
4
V
I
1
µ
F
V
O
47
µ
F
+
C
o
(1)
(1) 看 应用 信息 部分 为 电容 选择 详细信息.
tps75801,tps75815
tps75818,tps75825
TPS75833
SLVS330D–JUNE2001–REVISEDMARCH2004
becausethepmosdevicebehavesasalow-valueresistor,thedropoutvoltageisverylow(typically150mvat
anoutputcurrentof3aforthetps75833)andisdirectlyproportionaltotheoutputcurrent.additionally,自从
thepmospasselementisavoltage-drivendevice,thequiescentcurrentisverylowandindependentofoutput
加载(typically125µaoverthefullrangeofoutputcurrent).thesetwokeyspecificationsyieldasignificant
improvementinoperatinglifeforbattery-poweredsystems.
thedeviceisenabledwhenen(使能)isconnectedtoahighvoltagelevel(>2v).applyingalowvoltagelevel
(<0.7v)toenshutsdowntheregulator,reducingthequiescentcurrenttolessthan1µaatt
J
=25
°
c.
thetps758xxisofferedin1.5-v,1.8-v,2.5-v,and3.3-vfixed-voltageversionsandinanadjustableversion
(programmableovertherangeof1.22vto5v).outputvoltagetoleranceisspecifiedasamaximumof3%over
线条,加载,andtemperatureranges.thetps758xxfamilyisavailableina5-pinto-220(kc)andto-263(ktt)
包装.
AVAILABLEOPTIONS
T
J
outputvoltage(典型值)至-220(kc)至-263(ktt)
(1)
3.3vtps75833kctps75833ktt
2.5vtps75825kctps75825ktt
40
°
Cto125
°
c1.8vtps75818kctps75818ktt
1.5vtps75815kctps75815ktt
adjustable1.22vto5vtps75801kctps75801ktt
(1)thetps75801isprogrammableusinganexternalresistordivider(seeapplicationinformation).这
kttpackageisavailabletapedandreeled.增加
T
forkttdevicesin50-piecereel.增加
R
forKTT
devicesin500-piecereel.
figure1.typicalapplicationconfiguration(forfixedoutputoptions)
2
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