PMP30520 Reference Design

Texas Instruments

20-W: 2-switch buck boost reference design with variable output voltage

Description

This reference design uses the LM25118-Q1. The input voltage is between 9 V and 16 V (withstanding pulse to 32 V). The output voltage is variable from 2 V to 18 V by means of a DAC control input. If the DAC control input is left open: the output voltage is about 13.26 V. With shorted DAC control input: the output voltage is around 18 V.

Features
  • Output voltage can vary between 2 V and 18 V to support wireless charging2-SW buck-boost topology saves two MOSFETs and drivers versus 4-SW buck boost.Minimal efficiency difference versus 4-SW buck-boost because of Suitable for automotive applications and can survive load dump to 32 V
Applications
Product Categories
  • Power management