PMP20371 Reference Design

Texas Instruments

125W Non-Isolated Inverting Buck Boost for Telecom -48V Applications Reference Design

Description

PMP20371 is a synchronous buck boost design utilizing the LM5122 for telecom applications. This design has a minimum operating input voltage of -35V and a maximum input voltage of -60V.  Switching frequency is set to 150kHz. The design is built on PMP20371 PCB: 4 layer board with 2oz copper on each layer.

Features
  • -35V to -60V in: output 14.5V@ 9AAchieving efficiency of 93% across all operating conditionsCompact size: slim form factor: suitable for telecom applicationsSolution size:  48mm x 45mmLM5122 synchronous boost controller: wide input voltage: high efficiency
Applications
  • Macro remote radio unit (RRU)
Product Categories
  • Power management