TIDT234 November   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 and Power Loss Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-up Sequence
    5. 3.5 Conducted EMI Performance

Considerations

There are two revisions of this design: RevA which has the inductor mounted on the same side as the regulator and RevB, which has the inductor mounted on the bottom side of the regulator. The circuitry of both are exactly the same. Only the PCB layouts vary slightly. Unless otherwise noted, all tests are performed on the RevB board for this report.

Note: Since this is a pre-released IC, there are certain misbehaviors with the converter that are documented in the errata sheet, which are to be rectified before the release of the product. These misbehaviors have some effect on the switching, output ripple, and load transient response waveforms, and might also have influenced the EMI results, documented in this preliminary test report.