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MC33063ADR-MC33063ADRE4-MC33063ADRG4-MC33063ADRJR-MC33063ADRJRG4
1.5-A Peak Boost/Buck/Inverting Switching Regulator 8-SOIC -40 to 85
SReference
Regulator
Ipk
Oscillator
Switch
Collector
Switch
Emitter
Timing
Capacitor8
VCC
Ipk
Sense
Drive
Collector
100W
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MC33063A, MC34063ASLLS636N –DECEMBER 2004–REVISED JANUARY 2015
MC3x063A 1.5-A Peak Boost/Buck/Inverting Switching Regulators Features 3 DescriptionThe MC33063A and MC34063A devices are easy-to- Wide Input Voltage Range:3Vto40V use ICs containingall the primary circuitry needed for• High Output Switch Current: Upto 1.5A building simple DC-DC converters. These devices• Adjustable Output Voltage primarily consist of an internal temperature-
compensated reference,a comparator, an oscillator,• Oscillator Frequency Upto 100 kHz a PWM controller with active current limiting,a driver,• Precision Internal Reference: 2% anda high-current output switch. Thus, the devices• Short-Circuit Current Limiting require minimal external components to build
converters in the boost, buck, and inverting• Low Standby Current
topologies.
Applications The MC33063A deviceis characterized for operation
from –40°Cto 85°C, while the MC34063A deviceis• Blood Gas Analyzers: Portable
characterizedfor operation from 0°Cto 70°C.• Cable Solutions HMIs (Human Machine Interfaces)
Device Information(1) Telecommunications Portable Devices Consumer& Computing• Test& Measurement
(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Schematic
