Datasheet > BL3406B-1.2V

BL3406B-1.2V

更新时间： 2022-02-26 10:23:05

品牌	Logo	应用领域
上海贝岭 - BELLING		/
页数	文件大小	规格书
11页	462K
描述
1.5 MHz, 800mA Synchronous Buck Converter

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BL3406B-1.2V 数据手册

BL3406B

1.5 MHz, 800mA Synchronous Buck Converter

ꢀ

•ꢀ GPSꢀReceiversꢀ

FEATURES

ꢀ

DESCRIPTION

ꢀ

•ꢀ HighꢀEfficiency:ꢀUpꢀtoꢀ96%ꢀ

•ꢀ 1.5MHzꢀConstantꢀSwitchingꢀFrequencyꢀ

•ꢀ CurrentꢀModeꢀOperationꢀforꢀExcellentꢀ

LineꢀandꢀLoadꢀTransientꢀResponseꢀ

•ꢀ NoꢀSchottkyꢀDiodeꢀRequiredꢀ

•ꢀ 2.5Vꢀtoꢀ5.5VꢀInputꢀVoltageꢀRangeꢀꢀ

•ꢀ 1.0V,1.2V,1.5V,1.8V,2.5Vꢀandꢀ3.3Vꢀ

Fixed/AdjustableꢀOutputꢀVoltageꢀ

•ꢀ 100%ꢀDutyꢀCycleꢀinꢀDropoutꢀModeꢀ

•ꢀ LowꢀQuiescentꢀCurrent:ꢀ180ꢁAꢀ

•ꢀ OverꢀtemperatureꢀProtectionꢀ

•ꢀ ShortꢀCircuitꢀProtectionꢀ

•ꢀ ShutdownꢀQuiescentꢀCurrentꢀ<ꢀ1ꢁAꢀ

•ꢀ SpaceꢀSavingꢀ5ꢂPinꢀThinꢀSOT23ꢀPackageꢀ

ꢀ

APPLICATIONS

•ꢀ CellularꢀandꢀSmartꢀPhonesꢀ

•ꢀ WirelessꢀHandsetsꢀandꢀDSLꢀModemsꢀ

•ꢀ MicroprocessorsꢀandꢀDSPꢀCoreꢀSuppliesꢀ

•ꢀ PDAsꢀ

•ꢀ DigitalꢀStillꢀandꢀVideoꢀCamerasꢀ

•ꢀ MP3/MP4/MP5ꢀPlayersꢀ

•ꢀ PortableꢀInstrumentsꢀ

ꢀ

Theꢀ BL3406Bꢀ isꢀ aꢀ constantꢀ frequency,ꢀ

1.5MHz,ꢀ slopeꢀ compensatedꢀ currentꢀ modeꢀ

PWMꢀstepꢂdownꢀconverterꢀworkingꢀunderꢀanꢀ

inputꢀ voltageꢀ rangeꢀ ofꢀ 2.5Vꢀ toꢀ 5.5V.ꢀ Thisꢀ

featureꢀ makesꢀ theꢀ BL3406Bꢀ suitableꢀ forꢀ

singleꢀcellꢀLiꢂionꢀbatteryꢂpoweredꢀapplications.ꢀ

Theꢀ internalꢀ synchronousꢀ rectifierꢀ isꢀ desiredꢀ

toꢀ increaseꢀ efficiencyꢀ withoutꢀ anꢀ externalꢀ

Schottkyꢀ diode.ꢀ 100%ꢀ dutyꢀ cycleꢀ capabilityꢀ

extendsꢀbatteryꢀlifeꢀinꢀportableꢀdevices,ꢀwhileꢀ

theꢀ quiescentꢀ currentꢀ isꢀ 180ꢁAꢀ atꢀ noꢀ load,ꢀ

andꢀ dropsꢀ toꢀ <ꢀ 1ꢁAꢀ inꢀ shutdown.ꢀ Pulseꢀ

SkippingꢀModeꢀoperationꢀincreasesꢀefficiencyꢀ

atꢀ lightꢀ loads,ꢀ furtherꢀ extendingꢀ batteryꢀ life.ꢀ

TheꢀBL3406Bꢀisꢀofferedꢀinꢀaꢀlowꢀprofileꢀ(1mm)ꢀ

5ꢂpin,ꢀ thinꢀ SOT23ꢀ package,ꢀ andꢀ isꢀ availableꢀ

inꢀ anꢀ adjustableꢀ versionꢀ andꢀ fixedꢀ outputꢀ

versionsꢀofꢀ1.0V,ꢀ1.2V,ꢀ1.5Vꢀ,ꢀ1.8V,ꢀ2.5Vꢀandꢀ

3.3V.ꢀ

ꢀ

ORDERING INFORMATIONꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ TYPICAL APPLICATIONꢀ

BL3406Bꢀ–XXꢀXꢀXXXꢀ

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ

ꢀ

Package：ꢀ

TRN:ꢀTSOT23ꢂ5ꢀ

RN:ꢀSOT23ꢂ5ꢀ

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ

ꢀ

2.2^Lꢀ¹

ꢁ

ꢀ

2.7Vꢀꢂꢀ4.2V

ꢀ

V_OUTꢀ

ꢀ

1.8V

ꢀ

^SWꢀ ³

ꢀ

V_INꢀ

Features:ꢀ

P:ꢀStandardꢀ(default,ꢀ

leadꢀfree)ꢀ

V_IN

ꢀ

2^C2³pFꢀ

BL3406B-ADJ

ꢀ

4.7uF

ꢀ

10uF

ꢀ

C:ꢀCustomizedꢀ

5ꢀ

ꢀ

V_FB

ꢀ

Run

ꢀ

200k

100k

ꢀ

OutputꢀVoltage：ꢀ

ꢀꢀꢀ10:ꢀ1.0Vꢀ

ꢀꢀꢀ12:ꢀ1.2Vꢀ

GND

ꢀ

ꢀꢀꢀ15:ꢀ1.5Vꢀ

ꢀꢀꢀ18:ꢀ1.8Vꢀ

ꢀꢀꢀ25:ꢀ2.5Vꢀ

ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ

Figureꢀ1.ꢀꢀBL3406BꢂADJꢀTypicalꢀApplicationꢀCircuit

ꢀꢀꢀ33:ꢀ3.3Vꢀ

ꢀꢀꢀAD:ꢀAdjustableꢀꢀ

PPMIC BU

BL3406B Rev 1.5

10/2009

www.belling.com.cn

Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited

12 3 4 5 6 7...11

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