Texas Instruments LM27313-Q1 Handleiding

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LM27313

SW

FB

GND

V

IN

SHDN

U1

R3

51k

SHDN

GND

5 V

IN

C1

2.2 PF

R2

13.3k

CF

220 pF

D1

MBR0520

R1/117k

L1/10 PH

C2

4.7 PF

12V

OUT

260 mA

(TYP)

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

LM27313

,

LM27313-Q1

SNVS487E–DECEMBER2006–REVISEDJANUARY2015

LM27313/-Q11.6-MHzBoostConverterWith30-VInternalFETSwitchinSOT-23

1Features3Description

TheLM27313/-Q1switchingregulatorisacurrent-

1

•LM27313-Q1isanAutomotive-GradeProductthat

modeboostconverterwithafixedoperating

isAEC-Q100Grade1Qualified(–40°Cto+125°C

frequencyof1.6MHz.

OperatingJunctionTemperature)

TheuseoftheSOT-23package,madepossibleby

•30-VDMOSFETSwitch

theminimallossesofthe800-mAswitch,andthe

•1.6-MHzSwitchingFrequency

smallinductorsandcapacitorsresultinextremely

•LowR

DS

(ON)DMOSFET

highpowerdensity.The30-Vinternalswitchmakes

thesesolutionsperfectforboostingtovoltagesof5V

•SwitchCurrentupto800mA

to28V.

•WideInputVoltageRange(2.7Vto14V)

Thisdevicehasalogic-levelshutdownpinthatcan

•LowShutdownCurrent(<1µA)

beusedtoreducequiescentcurrentandextend

•5-LeadSOT-23Package

batterylife.

•UsesTinyCapacitorsandInductors

Protectionisprovidedthroughcycle-by-cyclecurrent

•Cycle-by-CycleCurrentLimiting

limitingandthermalshutdown.Internalcompensation

•InternallyCompensated

simplifiesdesignandreducescomponentcount.

2Applications

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

•WhiteLEDCurrentSource

LM27313

•PDAsandPalm-TopComputers

SOT-23(5)2.90mmx1.60mm

LM27313-Q1

•DigitalCameras

(1)Forallavailablepackages,seetheorderableaddendumat

•PortablePhones,Games,andMediaPlayers

theendofthedatasheet.

•GPSDevices

TypicalApplicationCircuitEfficiencyvs.LoadCurrent

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties