Four-output, SEPIC converter-bias power supply reference design for solar panel applications
PMP21883
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Four-Output, SEPIC-Converter-Bias Power Supply Reference Design
(PDF 3163 KB)
08 Oct 2019
Description
This reference design supplies two non-isolated and two isolated output voltages. It references a regulated 3.3-V/0.25-A and an unregulated 12-V/0.05-A output on the primary-side, and it isolates two 12-V/0.025-A unregulated outputs. The design operates over an input voltage range of 7 V to 45 V and offers minimal voltage ringing on the FET for lower stress and reduced EMI.
Features
- SEPIC topology eliminates FET voltage ringing for reduced stress and lower EMI
- Four-output single-ended primary-inductor converter (SEPIC) from single transformer provides excellent cross regulation
- Full load efficiency greater than 80% from 12-V and 24-V input
- Compact size (30 mm x 40 mm) minimizes required PCB area
See the Important Notice and Disclaimer covering reference designs and other TI resources.
