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MC34063A

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1.5-A Boost/Buck/Inverting Switching Regulator

Data sheet
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1.5-A Boost/Buck/Inverting Switching Regulator

MC34063A

ACTIVE
Data sheet Order now

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 Switching frequency (Max) (kHz) 100 Iq (Typ) (mA) 4 Duty cycle (Max) (%) 80 Operating temperature range (C) 0 to 70 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 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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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.

Reference designs

REFERENCE DESIGNS Download
Isolated Power Supply 15V input to 15V@20mA output
PMP7006 — PMP7006 is a primary side regulated, isolated DC/DC converter for low loads like sensors. It is a small solution at low costs.
Design files
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CAD/CAE symbols

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

Ordering & quality

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Training series

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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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