TIDT284 May   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Output Voltage Regulation
  6. 3Waveforms
    1. 3.1 Switching and Output Voltage Ripple
    2. 3.2 Start-Up
    3. 3.3 Shutdown

Description

This reference design is an isolated push-pull, where cascode SOT-23 FETs are added for the 24-V version. This cascode connection extends input voltage range to 24-VIN ±4% into 6 V or 12 V unregulated (open loop). With a selection of four different transformers, it is possible to get 6 V (at 300 mA) or 12 V (at 150 mA) from a 3.8-V or 24-V source.