DC-DC CONVERTER CONTROL CIRCUITS

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  • The MC34063A/E series is a monolithic control circuit which delivers the main functions for DC-DC voltage converting.

    The device contains an internal temperature compensated reference, comparator, duty cycle controlled oscillator with an active current limit circuit, driver and high current output switch. Output voltage is adjustable through two external resistors with a 2% reference accuracy.
    Employing a minimum number of external components, the MC34063A/E device series is designed for step-down, step-up and voltage-inverting applications.

    Key Features

    • Output switch current in excess of 1.5 A
    • 2 % reference accuracy
    • Low quiescent current: 2.5 mA (typ.)
    • Operating from 3 V to 40 V
    • Frequency operation to 100 kHz
    • Active current limiting

Circuit Diagram

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MC34063ACD-TR
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1000 0.219 SO-8 Tape And Reel 0 70 EAR99
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Country of Origin:

CHINA

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MC34063ACN
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1000 0.326 DIP-8 Tube 0 70 EAR99
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Country of Origin:

MALAYSIA

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Distributor availability ofMC34063ACN

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DIGIKEY WORLDWIDE 2971 1 Order Now
RS COMPONENTS EUROPE 2028 1 Order Now
FUTURE WORLDWIDE 1030 1 Order Now
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Newark Element14 AMERICA 637 0 Order Now
MOUSER WORLDWIDE 4319 1 Order Now
ANGLIA Live EUROPE 6650 1 Order Now

Distributor reported inventory date: 2019-05-19

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DIGIKEY

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2971

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1

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RS COMPONENTS

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2028

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1

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EUROPE Order Now

FUTURE

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1030

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1

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ARROW

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9348

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EUROPE Order Now

Newark Element14

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637

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4319

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1

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6650

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Distributor reported inventory date: 2019-05-19

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MC34063ACD-TR

Marketing Status

Active

Quantity

1000

Unit Price (US$)

0.219*

Distributor availability ofMC34063ACD-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 20618 1 Order Now
RS COMPONENTS EUROPE 7551 5 Order Now
AVNET AMERICA 5000 0 Order Now
FUTURE WORLDWIDE 12500 2500 Order Now
Newark Element14 AMERICA 43 0 Order Now
MOUSER WORLDWIDE 18333 1 Order Now
Farnell Element14 EUROPE 11868 1 Order Now

Distributor reported inventory date: 2019-05-19

Distributor Name

DIGIKEY

Stock

20618

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7551

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

12500

Min.Order

2500

Region

WORLDWIDE Order Now

Newark Element14

Stock

43

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

18333

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

11868

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-19

Unit Price (US$)

0.219

Package

SO-8

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

0

(max)

70

ECCN (US)

EAR99

Country of Origin

CHINA

MC34063ACN

Marketing Status

Active

Quantity

1000

Unit Price (US$)

0.326*

Distributor availability ofMC34063ACN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2971 1 Order Now
RS COMPONENTS EUROPE 2028 1 Order Now
FUTURE WORLDWIDE 1030 1 Order Now
ARROW EUROPE 9348 0 Order Now
Newark Element14 AMERICA 637 0 Order Now
MOUSER WORLDWIDE 4319 1 Order Now
ANGLIA Live EUROPE 6650 1 Order Now

Distributor reported inventory date: 2019-05-19

Distributor Name

DIGIKEY

Stock

2971

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2028

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

1030

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

9348

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

637

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4319

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

6650

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-19

Unit Price (US$)

0.326

Package

DIP-8

Packing Type

Tube

Operating Temperature (°C)

(min)

0

(max)

70

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS1157
      DC-DC converter control circuits
      11.0
      803.82 KB
      PDF
      DS1157

      DC-DC converter control circuits

Publications and Collaterals

    • Description Version Size Action
      Brochure Power management guide 10.2018
      4.42 MB
      PDF
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      Brochure Power management guide

      Switching Converters (DC-DC) – Quick Reference Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
MC34063ACD-TR
Active
SO-8 Industrial Ecopack2 (**)
MC34063ACN
Active
DIP-8 Industrial Ecopack2 (**)

MC34063ACD-TR

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

MC34063ACN

Package:

DIP-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DIP-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.