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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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STMicroelectronics - MC34063AC

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Quality and Reliability

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**:

PDF XML

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
MC34063ACD-TR Available at 10 distributors

Distributor availability ofMC34063ACD-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10077 1 Order Now
COMPEL EUROPE 18232 1 Order Now
RS COMPONENTS EUROPE 4126 5 Order Now
AVNET AMERICA 5000 0 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 27500 0 Order Now
Newark Element14 AMERICA 333 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 10228 1 Order Now
Farnell Element14 EUROPE 6182 1 Order Now

Distributor reported inventory date: 2020-10-29

Distributor Name

DIGIKEY

Stock

10077

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

18232

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

4126

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

27500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

333

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

10228

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6182

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-29

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 0 70 CHINA 0.219 / 1k
MC34063ACN Available at 6 distributors

Distributor availability ofMC34063ACN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2713 1 Order Now
RS COMPONENTS EUROPE 1605 1 Order Now
FUTURE WORLDWIDE 3275 1 Order Now
ARROW EUROPE 6398 0 Order Now
MOUSER WORLDWIDE 1997 1 Order Now
ANGLIA Live EUROPE 6580 1 Order Now

Distributor reported inventory date: 2020-10-29

Distributor Name

DIGIKEY

Stock

2713

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1605

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

3275

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

6398

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1997

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

6580

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-29

Buy Direct
Active
EAR99 NEC Tube DIP-8 0 70 CHINA 0.326 / 1k

MC34063ACD-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.219 / 1k

Distributor availability ofMC34063ACD-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10077 1 Order Now
COMPEL EUROPE 18232 1 Order Now
RS COMPONENTS EUROPE 4126 5 Order Now
AVNET AMERICA 5000 0 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 27500 0 Order Now
Newark Element14 AMERICA 333 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 10228 1 Order Now
Farnell Element14 EUROPE 6182 1 Order Now

Distributor reported inventory date: 2020-10-29

Distributor Name

DIGIKEY

Stock

10077

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

18232

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

4126

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

27500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

333

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

10228

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6182

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-29

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

0

(max)

70

Budgetary Price (US$)* / Qty

0.219 / 1k

Country of Origin

CHINA

MC34063ACN

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.326 / 1k

Distributor availability ofMC34063ACN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2713 1 Order Now
RS COMPONENTS EUROPE 1605 1 Order Now
FUTURE WORLDWIDE 3275 1 Order Now
ARROW EUROPE 6398 0 Order Now
MOUSER WORLDWIDE 1997 1 Order Now
ANGLIA Live EUROPE 6580 1 Order Now

Distributor reported inventory date: 2020-10-29

Distributor Name

DIGIKEY

Stock

2713

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1605

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

3275

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

6398

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1997

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

6580

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-29

ECCN (EU)

NEC

Packing Type

Tube

Package

DIP-8

Operating Temperature (°C)

(min)

0

(max)

70

Budgetary Price (US$)* / Qty

0.326 / 1k

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