SNVA381B November   2008  – December 2021 LM27341 , LM27341-Q1 , LM27342 , LM27342-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Evaluation Board Schematic
  4. 3Powering and Loading Considerations
    1. 3.1 Quick Start Procedure
    2. 3.2 Starting Up
    3. 3.3 Overcurrent Protection
    4. 3.4 Synchronization
    5. 3.5 Adjusting the Output Voltage
  5. 4Performance Characteristics
  6. 5Layout and Bill of Materials
  7. 6PCB Layout
  8. 7Revision History

3.2 Starting Up

The EN pin is tied to VIN to simplify start up. The pullup resistor allows the power supply design engineer to toggle EN independently, if desired, and observe the start-up behavior of the LM27342.