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BL3406B-1.2V PDF预览

BL3406B-1.2V

更新时间: 2024-11-28 00:58:43
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

BL3406B-1.2V 数据手册

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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  
PWMstepꢂdownconverterworkingunderanꢀ  
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  
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ  
Packageꢀ  
TRN:ꢀTSOT23ꢂ5ꢀ  
RN:ꢀSOT23ꢂ5ꢀ  
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ  
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ  
H
2.2L1  
2.7Vꢀꢂꢀ4.2V  
VOUTꢀ  
1.8V  
SW3  
4
VINꢀ  
Features:ꢀ  
P:ꢀStandardꢀ(default,ꢀ  
leadꢀfree)ꢀ  
VIN  
C1  
C2  
2C23pFꢀ  
BL3406B-ADJ  
4.7uF  
10uF  
C:ꢀCustomizedꢀ  
5ꢀ  
1
VFB  
Run  
R2  
200k  
R1  
100k  
OutputꢀVoltageꢀ  
ꢀꢀꢀ10:ꢀ1.0Vꢀ  
ꢀꢀꢀ12:ꢀ1.2Vꢀ  
GND  
2
ꢀꢀꢀ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  
1
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited  
©2009 Belling All Rights Reserved  

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