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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MC34063ABN
Active
10000 0.326 DIP-8 Tube -40 85 EAR99
MORE INFO

Country of Origin:

MALAYSIA

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DIGIKEY WORLDWIDE 7845 1 Order Now
RS COMPONENTS EUROPE 3210 10 Order Now
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Farnell Element14 EUROPE 2725 1 Order Now
ANGLIA Live EUROPE 5 1 Order Now

Distributor reported inventory date: 2019-09-17

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DIGIKEY

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7845

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1

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3210

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10

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ARROW

Stock

1300

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0

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EUROPE Order Now

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Stock

4826

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

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2725

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1

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EUROPE Order Now

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5

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1

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Distributor reported inventory date: 2019-09-17

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MC34063ABD-TR
Active
10000 0.219 SO-8 Tape And Reel -40 85 EAR99
MORE INFO

Country of Origin:

CHINA

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Distributor availability ofMC34063ABD-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4882 1 Order Now
RS COMPONENTS EUROPE 12115 5 Order Now
AVNET AMERICA 230000 0 Order Now
ARROW EUROPE 22500 0 Order Now
MOUSER WORLDWIDE 13926 1 Order Now
Farnell Element14 EUROPE 81032 1 Order Now
ANGLIA Live EUROPE 16 2500 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

4882

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

12115

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

230000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

22500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

13926

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

81032

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

16

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Buy now

MC34063ABN

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.326*

Distributor availability ofMC34063ABN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7845 1 Order Now
RS COMPONENTS EUROPE 3210 10 Order Now
ARROW EUROPE 1300 0 Order Now
MOUSER WORLDWIDE 4826 1 Order Now
Farnell Element14 EUROPE 2725 1 Order Now
ANGLIA Live EUROPE 5 1 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

7845

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3210

Min.Order

10

Region

EUROPE Order Now

ARROW

Stock

1300

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

4826

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2725

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Unit Price (US$)

0.326

Package

DIP-8

Packing Type

Tube

Operating Temperature (°C)

(min)

-40

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

MC34063ABD-TR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

0.219*

Distributor availability ofMC34063ABD-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4882 1 Order Now
RS COMPONENTS EUROPE 12115 5 Order Now
AVNET AMERICA 230000 0 Order Now
ARROW EUROPE 22500 0 Order Now
MOUSER WORLDWIDE 13926 1 Order Now
Farnell Element14 EUROPE 81032 1 Order Now
ANGLIA Live EUROPE 16 2500 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

4882

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

12115

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

230000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

22500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

13926

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

81032

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

16

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Unit Price (US$)

0.219

Package

SO-8

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

85

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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

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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
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      Switching Converters (DC-DC) – Quick Reference Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
MC34063ABD-TR
Active
SO-8 Industrial Ecopack2 (**)
MC34063ABN
Active
DIP-8 Industrial Ecopack2 (**)

MC34063ABD-TR

Package:

SO-8

Material Declaration**:

PDF

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

MC34063ABN

Package:

DIP-8

Material Declaration**:

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.