Texas Instruments LP5952 Bedienungsanleitung
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V
BATT
: 2.7 V to 5.5 V
IN
OUT
GND
EN
-+
For example,
1.5 V
1 PF
BATT
LP5952
Pre-
regulator
Li-Ion
or
3-cell
NiMh/NiCd
2.2 PF
For example, 1.2 V
A1
B2C3
A3
C1
Load
0 to 350 mA
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LP5952
SNVS469F–OCTOBER2006–REVISEDDECEMBER2015
LP5952350-mADual-RailLinearRegulator
1Features3Description
TheLP5952isadual-supply-raillinearregulator
1
•InputVoltageRange:0.7Vto4.5V
optimizedforpoweringultralow-voltagecircuitsfroma
•2.5V≤V
BATT
≤5.5V
singleLi-Ioncellor3-cellNiMH/NiCdbattery.
•0.5V≤V
OUT
≤2V
Inthetypicalpost-regulationapplicationV
BATT
is
•Ensured350-mAOutputCurrent
directlyconnectedtothebattery(range2.5Vto
•ForI
LOAD
=350mA:
5.5V),andV
IN
issuppliedbytheoutputvoltageof
theDC-DCconverter(range0.7Vto4.5V).
–V
BATT
≥V
OUT(NOM)
+1.5Vor2.5V
(WhicheverisHigher)
Thedeviceofferssuperiordropoutandtransient
•ForI
LOAD
=150mA:
featurescombinedwithverylowquiescentcurrents.
Inshutdownmode(Enable(EN)pinpulledlow)the
–V
BATT
≥V
OUT(NOM)
+1.3Vor2.5V
deviceturnsoffandreducesbatteryconsumptionto
(WhicheverisHigher)
0.1µA(typical).TheLP5952alsofeaturesinternal
•ExcellentLoadTransientResponse:±15mV
protectionagainstovertemperature,overcurrent,and
Typical
undervoltageconditions.
•ExcellentLineTransientResponse:±1mVTypical
Dependinguponapplication,onlyoneortwotiny
•50-µATypicalQuiescentCurrentfromV
BATT
surface-mountexternalcomponentsarerequired;
performanceisspecifiedfora–40°Cto+125°C
•10-µATypicalQuiescentCurrentfromV
IN
junctiontemperaturerange.Thedeviceisavailablein
•0.1-µATypicalQuiescentCurrentinShutdown
fixedoutputvoltagesfrom0.5Vto2V.For
•Noisevoltage=100µV
RMS
Typical
availability,pleasecontactyourlocalTexas
•OperatesfromaSingleLi-IonCellor3-Cell
Instrumentssalesoffice.
NiMH/NiCdBattery
DeviceInformation
(1)
•Thermal-OverloadandShort-CircuitProtection
PARTNUMBERPACKAGEBODYSIZE(NOM)
DSBGA(5)1.326mm×0.96mm
2Applications
LP5952
USON(6)2.00mm×2.00mm
•MobilePhones
(1)Forallavailablepackages,seetheorderableaddendumat
•Hand-HeldRadios
theendofthedatasheet.
•PersonalDigitalAssistants
•Palm-TopPCs
•PortableInstruments
•Battery-PoweredDevices
TypicalApplicationCircuit
1
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
Produktspezifikationen
| Marke: | Texas Instruments |
| Kategorie: | Nicht kategorisiert |
| Modell: | LP5952 |
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