MC33063A

ACTIVE

1.5-A peak boost/buck/inverting switching regulator

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Product details

Parameters

Vin (Min) (V) 3 Vin (Max) (V) 40 Vout (Min) (V) 1.25 Vout (Max) (V) 40 Switch current limit (Typ) (A) 1.5 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 100 Iq (Typ) (mA) 4 Duty cycle (Max) (%) 80 Operating temperature range (C) -40 to 85 Type Converter Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 4.9 x 3.9 SOIC (D) 8 19 mm² 3.91 x 4.9 WSON (DRJ) 8 16 mm² 4 x 4 open-in-new Find other Boost converters (integrated switch)

Features

  • Wide Input Voltage Range: 3 V to 40 V
  • High Output Switch Current: Up to 1.5 A
  • Adjustable Output Voltage
  • Oscillator Frequency Up to 100 kHz
  • Precision Internal Reference: 2%
  • Short-Circuit Current Limiting
  • Low Standby Current
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Description

The MC33063A and MC34063A devices are easy-to-use ICs containing all the primary circuitry needed for building simple DC-DC converters. These devices primarily consist of an internal temperature-compensated reference, a comparator, an oscillator, a PWM controller with active current limiting, a driver, and a high-current output switch. Thus, the devices require minimal external components to build converters in the boost, buck, and inverting topologies.

The MC33063A device is characterized for operation from –40°C to 85°C, while the MC34063A device is characterized for operation from 0°C to 70°C.

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Similar but not functionally equivalent to the compared device:
TPS5430 ACTIVE 5.5V to 36V Input, 3A, 500kHz Step-Down Converter TPS5430 is an alternative if MC33063 is used as a buck converter.
TPS54350 ACTIVE 4.5V to 20V Input, 3A Synchronous Step-Down Converter with Low-Side Gate Driver TPS54350 is an alternative if MC33063 is used as a buck converter.

Technical documentation

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Type Title Date
* Datasheet MC3x063A 1.5-A Peak Boost/Buck/Inverting Switching Regulators datasheet (Rev. N) Jan. 29, 2015
Application notes Adding shutdown feature to MC33063A, MC34063A switching regulators Feb. 05, 2013
Application notes Application of the MC34063 Switching Regulator (Rev. B) Nov. 06, 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SLLM359A.ZIP (297 KB) - PSpice Model
SIMULATION MODELS Download
SLLM444.ZIP (2 KB) - PSpice Model
SCHEMATICS Download
SLVR311.PDF (127 KB)
SCHEMATICS Download
SLVR312.PDF (134 KB)
SCHEMATICS Download
SLVR313.PDF (142 KB)
SCHEMATICS Download
SLVR314.PDF (142 KB)

CAD/CAE symbols

Package Pins Download
PDIP (P) 8 View options
SOIC (D) 8 View options
SON (DRJ) 8 View options

Ordering & quality

Support & training

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Videos

Power Tips: Layout for a Boost Power Stage

This video shows a simplified schematic and PCB layout for a boost converter

Posted: 21-Jan-2016
Duration: 04:31

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