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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 - MC34063EB

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
MC34063EBD-TR
Active
SO-8 Industrial Ecopack2 (**)
MC34063EBN
Active
DIP-8 Industrial Ecopack2

MC34063EBD-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

MC34063EBN

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
MC34063EBD-TR Available at 7 distributors

Distributor availability ofMC34063EBD-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 68618 1 Order Now
COMPEL EUROPE 7195 1 Order Now
RS COMPONENTS EUROPE 8860 20 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 10000 0 Order Now
MOUSER WORLDWIDE 24298 1 Order Now
RUTRONIK EUROPE 5100 2500 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

68618

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

7195

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

8860

Min.Order

20

Region

EUROPE Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

24298

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

5100

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-30

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 125 CHINA 0.196 / 1k
MC34063EBN Available at 5 distributors

Distributor availability ofMC34063EBN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2062 1 Order Now
RS COMPONENTS EUROPE 1050 10 Order Now
FUTURE WORLDWIDE 2900 50 Order Now
ARROW AMERICA 1919 2000 Order Now
MOUSER WORLDWIDE 5713 1 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

2062

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1050

Min.Order

10

Region

EUROPE Order Now

FUTURE

Stock

2900

Min.Order

50

Region

WORLDWIDE Order Now

ARROW

Stock

1919

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

5713

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-30

Buy Direct
Active
EAR99 NEC Tube DIP-8 -40 125 CHINA 0.326 / 1k

MC34063EBD-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.196 / 1k

Distributor availability ofMC34063EBD-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 68618 1 Order Now
COMPEL EUROPE 7195 1 Order Now
RS COMPONENTS EUROPE 8860 20 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 10000 0 Order Now
MOUSER WORLDWIDE 24298 1 Order Now
RUTRONIK EUROPE 5100 2500 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

68618

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

7195

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

8860

Min.Order

20

Region

EUROPE Order Now

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

24298

Min.Order

1

Region

WORLDWIDE Order Now

RUTRONIK

Stock

5100

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.196 / 1k

Country of Origin

CHINA

MC34063EBN

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.326 / 1k

Distributor availability ofMC34063EBN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2062 1 Order Now
RS COMPONENTS EUROPE 1050 10 Order Now
FUTURE WORLDWIDE 2900 50 Order Now
ARROW AMERICA 1919 2000 Order Now
MOUSER WORLDWIDE 5713 1 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

2062

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1050

Min.Order

10

Region

EUROPE Order Now

FUTURE

Stock

2900

Min.Order

50

Region

WORLDWIDE Order Now

ARROW

Stock

1919

Min.Order

2000

Region

AMERICA Order Now

MOUSER

Stock

5713

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-30

ECCN (EU)

NEC

Packing Type

Tube

Package

DIP-8

Operating Temperature (°C)

(min)

-40

(max)

125

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