SLVUAF6A June   2015  – May 2021 TPS62745

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
  3. 2Setup
    1. 2.1 Input/Output Connector Descriptions
    2. 2.2 Operation
  4. 3Common Efficiency Measurement Errors with Ultra-Low Iq Devices
    1. 3.1 Efficiency Measurement Setup
    2. 3.2 Pullup and Pulldown Resistors
  5. 4Board Layout
  6. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials
  7. 6Revision History

3 Common Efficiency Measurement Errors with Ultra-Low Iq Devices

Efficiency is a common measurement for a power supply. With an ultra-low quiescent current device, such as the TPS62745, measurement errors can have a large impact on the measured efficiency, especially at very low load currents (< 100 µA).