PMP30502 Reference Design

Texas Instruments

18-VDC - 30-VDC input multiple output flybuck reference design

Description

This isolated flybuck reference design uses the LM3150 synchronous buck controller to generate one non-isolated output (3.3 V at 5 A) and two isolated outputs (5 V at 100 mA: 5 V at 100 mA) from a DC input (18 VDC - 30 VDC). The design can provide 17.5-W output power. Two additonal linear regulator LP2922A improve the regulation of the isolated outputs.

Features
  • Primary side regulation without optical-couplerAchieves over 90% peak efficiencyCompact and cost effective isolated solutionConstant on-time architecture which needs no loop compensation
Applications
Product Categories
  • Power management