UC3843: Buck-Boost-Converter with UC3843

Bjoern Stache

Part Number: UC3843

Tool/software:

Hi,

on your homepage I saw the controller UC3843. In the section: Parameters you wirte Buck-Boost Converter for a possible topology.

How can I design a Buck-Boost Converter with the UC3843 Controller.

Specs:

Input: 23-28V

Output: 23-28V, 5A continuously

Do you have a reference design for a Buck-Boost-Converter with the UC3843 Controller

Thanks!

0 Hong Huang over 1 year ago

Hi,

Sepic is recommended unless you accept an external high-side MOSFET driver.

For Sepic converter, please refer to the below application note for design.

0 Bjoern Stache over 1 year ago in reply to Hong Huang

Hi,

do you habe a reference design for the controller with high-side Mosfet Driver in Buck-Boost topology.

0 Hong Huang over 1 year ago in reply to Bjoern Stache

Hi,

No we do not have a reference design.

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