PMP30555 Reference Design

Texas Instruments

3.5W isolated push-pull reference design for auxiliary power supply


This reference design is an isolated open-loop push-pull with “cascode” FETs that finds its typical application in isolated gate drive supply. The cascode connection extends the input voltage range of SN6505B from 5 V to 24 V: and two outputs supply 15 V at 120 mA and 5 V at 350 mA. Its 2-mm transformer makes the solution ultra-thin.

  • Low-noise: high-voltage isolationNo loop compensation (open loop)Suitable for multi-output applicationsNo inductor on secondary side
  • Analog input module
Product Categories
  • Power management