Texas Instruments TPS62080A Handleiding

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TPS62081

1µH

10 µF

2.3 V .. 6 V

V

IN

22 µF

180 k

V

OUT

POWER GOOD

1.8 V

SW

VOS

VIN

EN

GND

MODE

PG

FB

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

TPS62080

,

TPS62080A

,

TPS62081

,

TPS62082

SLVSAE8F–SEPTEMBER2011–REVISEDNOVEMBER2016

TPS6208x1.2-AHigh-Efficiency,Step-DownConverterWithDCS-Control™

andSnoozeMode

1

1Features

1

•DCS-Control™ArchitectureforFastTransient

Regulation

•SnoozeModefor6.5-µAUltraLowQuiescent

Current

•2.3-Vto6-VInputVoltageRange

•100%DutyCycleforLowestDropout

•PowerSaveModeforLight-LoadEfficiency

•OutputDischargeFunction

•Short-CircuitProtection

•Power-GoodOutput

•ThermalShutdown

•Availablein2-mm×2-mm8-PinWSONPackage

2Applications

•Battery-PoweredPortableDevices

•PointofLoadRegulators

•SystemPowerRailVoltageConversion

3Description

TheTPS6208xdevicesareafamilyofhighfrequency

synchronousstepdownconverters.Withaninput

voltagerangeof2.3Vto6V,commonbattery

technologiesaresupported.Alternatively,thedevice

canbeusedforlowvoltagesystempowerrails.

TheTPS6208xfocusesonhighefficiencystep-down

conversionoverawideoutputcurrentrange.At

mediumtoheavyloads,theconverteroperatesin

PWMmodeandautomaticallyentersPowerSave

Modeoperationatlightloadcurrentstomaintainhigh

efficiencyovertheentireloadcurrentrange.To

maintainhighefficiencyatverylowloadornoload

currents,aSnoozeModewithanultra-lowquiescent

currentisimplemented.Thisfunction,enabledbythe

MODEpin,increasestherun-timeofbatterydriven

applicationsandkeepsthestandbycurrentatits

lowestleveltomeetgreenenergystandardstargeting

alowstand-bycurrent.

Toaddresstherequirementsofsystempowerrails,

theinternalloopcompensationallowsalarge

selectionofexternaloutputcapacitorvaluesin

excessof100µF.WithitsDCS-Control™

architecture,excellentloadtransientperformanceand

outputvoltageregulationaccuracyisachieved.The

deviceisavailablein2-mm×2-mmWSONpackage

withThermalPAD.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

TPS62080

WSON(8)2.00mm×2.00mm

TPS62080A

TPS62081

TPS62082

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

TypicalApplicationSchematic

space

Product specificaties