www.德州仪器.com
ELECTRICALCHARACTERISTICS
TPS61030
tps61031,tps61032
SLUS534D–SEPTEMBER2002–REVISEDAPRIL2004
overrecommendedfree-airtemperaturerangeandoverrecommendedinputvoltagerange(typicalatanambienttemperature
rangeof25
°
c)(unlessotherwisenoted)
直流/dcstage
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
I
inputvoltagerange1.85.5v
V
O
tps61030outputvoltagerange1.85.5v
V
FB
TPS61030feedbackvoltage490500510mV
fOscillatorfrequency500600700kHz
Frequencyrangeforsynchronization500700kHz
SwitchcurrentlimitVOUT=5V360040004500mA
开始-upcurrentlimit0.4xi
SW
毫安
SWNswitchonresistanceVOUT=5V55m
Ω
SWPswitchonresistanceVOUT=5V55m
Ω
totalaccuracy-3%3%
lineregulation0.6%
loadregulation0.6%
I
O
=0ma,v
EN
=vbat=1.8v,
VBAT1025µA
VOUT=5V
Quiescentcurrent
I
O
=0ma,v
EN
=vbat=1.8v,
VOUT1020µA
VOUT=5V
ShutdowncurrentV
EN
=0v,vbat=2.4v0.11µa
CONTROLSTAGE
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
UVLO
UndervoltagelockoutthresholdV
LBI
voltagedecreasing1.5v
V
IL
LBIvoltagethresholdV
LBI
voltagedecreasing490500510mV
LBIinputhysteresis10mV
lbiinputcurrenten=vbatorgnd0.010.1µa
LBOoutputlowvoltageV
O
=3.3v,i
OI
=100µa0.040.4v
LBOoutputlowcurrent100µA
LBOoutputleakagecurrentV
LBO
=7v0.010.1µa
V
IL
en,syncinputlowvoltage0.2
×
VBATV
V
IH
en,syncinputhighvoltage0.8
×
VBATV
en,syncinputcurrentclampedongndorvbat0.010.1µa
Overtemperatureprotection140
°
C
Overtemperaturehysteresis20
°
C
3
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