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ELECTRICALCHARACTERISTICS
TPS65020
SLVS607–SEPTEMBER2005
vindcdc1=vindcdc2=vindcdc3=vcc=vinldo=3.6v,vbackup=3v,t
一个
=–40
°
Cto85
°
c,typicalvaluesare
atT
一个
=25
°
c(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
supplypins:vcackup,vsysin,vrtc
vbackup=3v,vsysin=0v;
I
(q)
Operatingquiescentcurrent2033
µ
一个
vcc=2.6v,currentintovbackup
vbackup<v_vbackup,currentinto
I
(sd)
Operatingquiescentcurrent23
µ
一个
VBACKUP
vrtcldooutputvoltagevsysin=vbackup=0v,i
O
=0mA3V
I
O
outputcurrentforvrtcvsysin<2.57vandvbackup<2.57v20ma
vrtcshort-circuitcurrentlimitvrtc=地;vsysin=vbackup=0v100ma
maximumoutputcurrentatvrtcforvrtc>2.6v,v
CC
=3v;
30mA
RESPWRON=1VSYSIN=VBACKUP=0V
V
O
outputvoltageaccuracyforvrtcvsysin=vbackup=0v;io=0ma
±
1%
lineregulationforvrtcvcc=vrtc+0.5vto6.5v,i
O
=5mA
±
1%
I
O
=1mato20ma;
LoadregulationVRTC
±
2%
VSYSIN=VBACKUP=0V
RegulationtimeforVRTCLoadchangefrom10%to90%10
µ
s
I
lkg
inputleakagecurrentatvsysinvsysin<v_vsysin2
µ
一个
r
ds(在)
ofvsysinswitch12.5
Ω
r
ds(在)
ofvbackupswitch12.5
Ω
InputvoltagerangeatVBACKUP
(1)
2.733.75v
InputvoltagerangeatVSYSIN
(1)
2.733.75v
vsysinthresholdvsysinfalling–3%2.553%v
vsysinthresholdvsysinrising–3%2.653%v
vbackupthresholdvbackupfalling–3%2.553%v
vbackupthresholdvbackupfalling-3%2.653%v
supplypin:vinldo
I
(q)
OperatingquiescentcurrentCurrentperLDOintoVINLDO1630
µ
一个
totalcurrentforbothldosintovinldo,
I
(sd)
shutdowncurrent0.11
µ
一个
VLDO=0V
(1)basedontherequirementsfortheintelpxa270processor.
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