Texas Instruments MC33063A Handleiding

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QS

1.25-V

Reference

Regulator

R

C

T

I

pk

Oscillator

Q2

Q1

Switch

Collector

4

Switch

Emitter

Timing

Capacitor

GND

3

2

18

7

6

5

Comparator

Inverting Input

V

CC

I

pk

Sense

Drive

Collector

100W

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

MC33063A

,

MC34063A

SLLS636N–DECEMBER2004–REVISEDJANUARY2015

MC3x063A1.5-APeakBoost/Buck/InvertingSwitchingRegulators

1Features3Description

TheMC33063AandMC34063Adevicesareeasy-to-

1

•WideInputVoltageRange:3Vto40V

useICscontainingalltheprimarycircuitryneededfor

•HighOutputSwitchCurrent:Upto1.5A

buildingsimpleDC-DCconverters.Thesedevices

•AdjustableOutputVoltage

primarilyconsistofaninternaltemperature-

compensatedreference,acomparator,anoscillator,

•OscillatorFrequencyUpto100kHz

aPWMcontrollerwithactivecurrentlimiting,adriver,

•PrecisionInternalReference:2%

andahigh-currentoutputswitch.Thus,thedevices

•Short-CircuitCurrentLimiting

requireminimalexternalcomponentstobuild

convertersintheboost,buck,andinverting

•LowStandbyCurrent

topologies.

2Applications

TheMC33063Adeviceischaracterizedforoperation

from–40°Cto85°C,whiletheMC34063Adeviceis

•BloodGasAnalyzers:Portable

characterizedforoperationfrom0°Cto70°C.

•CableSolutions

•HMIs(HumanMachineInterfaces)

DeviceInformation

(1)

•Telecommunications

PARTNUMBERPACKAGE(PIN)BODYSIZE

•PortableDevices

SOIC(8)4.90mm×3.91mm

•Consumer&Computing

MC3x063ASON(8)4.00mm×4.00mm

PDIP(8)9.81mm×6.35mm

•Test&Measurement

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

4SimplifiedSchematic

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties