Texas Instruments LP3906 Handleiding

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VINLDO12

SYNC

VIN1

SW1

FB1

GND_SW1

VIN2

SW2

2.2 PH

2.2 PH

10 PF

10 PF

1 PF

10 PF

FB2

GND_SW2

AVDD

10 PF

1 PF

0.47 PF

1 PF

1 PF

0.47 PF

GND_C

GND_L

SCL

SDA

LDO2

LDO1

VINLDO2

VINLDO1

ENSW2

ENSW1

ENLDO2

ENLDO1

EN_T

LP3906

DAP

LP3906

www.ti.com

SNVS456M–AUGUST2006–REVISEDMAY2013

DualHigh-CurrentStep-DownDC/DCandDualLinearRegulatorwithI2CCompatible

Interface

CheckforSamples:LP3906

1

FEATURES

KEYSPECIFICATIONS

2

•CompatiblewithAdvancedApplications

•DC/DCConverter(Buck)

ProcessorsandFPGAs

–1.5AOutputCurrent

•2LDOsforPoweringInternalProcessor

–ProgrammableV

OUT

from:

FunctionsandI/Os

–Buck1:0.8V–2.0V

•HighSpeedSerialInterfaceforIndependent

–Buck2:1.0V–3.5V

ControlofDeviceFunctionsandSettings

–Upto96%Efficiency

•PrecisionInternalReference

–2MHzPWMSwitchingFrequency

•ThermalOverloadProtection

–±3%OutputVoltageAccuracy

•CurrentOverloadProtection

–AutomaticSoftStart

•24-lead5×4×0.8mmWQFNPackage

•LinearRegulators(LDO)

•SoftwareProgrammableRegulators

–ProgrammableV

OUT

of1.0V–3.5V

–±3%OutputVoltageAccuracy

APPLICATIONS

–300mAOutputCurrents

•FPGA,DSPCorePower

–25mW(Typ)Dropout

•ApplicationsProcessors

•PeripheralI/OPower

DESCRIPTION

TheLP3906isamulti-function,programmablePower

ManagementUnit,optimizedforlowpowerFPGAs,

MicroprocessorsandDSPs.

TypicalApplicationCircuits

Figure1.TypicalApplicationCircuit

1

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2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2006–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties