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ELECTRICALCHARACTERISTICS
TPS61070
TPS61071
SLVS510–JUNE2004
overrecommendedfree-airtemperaturerangeandoverrecommendedinputvoltagerange(typicalatanambienttemperature
rangeof25
°
c)(unlessotherwisenoted)
直流/dcstage
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
Minimuminputvoltagerangefor
R
L
=270
Ω
1.11.2
开始-向上
V
I
V
inputvoltagerange,afterstart-upt
一个
=25
°
c0.95.5
V
O
tps61070outputvoltagerange1.85.5v
V
(fb)
TPS61070feedbackvoltage495500505mV
fOscillatorfrequency96012001440kHz
I
(sw)
switchcurrentlimitvout=3.3v500600700ma
开始-upcurrentlimit0.5xi
SW
毫安
swnswitch-onresistancevout=3.3v480m
Ω
swpswitch-onresistancevout=3.3v600m
Ω
totalaccuracy(includinglineand
3%
loadregulation)
Lineregulation1%
Loadregulation1%
vbat0.51µa
I
O
=0ma,v
(en)
=vbat=1.2v,
Quiescentcurrent
vout=3.3v,t
一个
=25
°
C
VOUT1930µA
ShutdowncurrentV
(en)
=0v,vbat=1.2v,t
一个
=25
°
c0.050.5µa
CONTROLSTAGE
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
(uvlo)
UndervoltagelockoutthresholdV
(lbi)
voltagedecreasing0.8v
0.2
×
V
V
IL
ENinputlowvoltage
VBAT
0.8
×
V
V
IH
ENinputhighvoltage
VBAT
eninputcurrentclampedongndorvbat0.010.1µa
Overtemperatureprotection140
°
C
Overtemperaturehysteresis20
°
C
3
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