TIDT419 January   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Charge Time and Holdup Time
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Input and Output Voltage Ripple
      1. 3.2.1 Buck Converter
      2. 3.2.2 Boost Converter
    3. 3.3 Load Transients
    4. 3.4 Start-up Sequence

3.3 Load Transients

Figure 2-5 and Figure 3-2 show the load transient response waveforms.

PMP23518 Boost Converter Load Transient, 0.5A to 1A, 1.5V Input
Ch 3: output voltage at J2, AC coupled; Ch 4: output current at J2; measured 76mV overshoot and 62mV undershoot
Figure 3-7 Boost Converter Load Transient, 0.5A to 1A, 1.5V Input
PMP23518 Buck Converter Load Transient, 0.5A to 1A, 12V Input
Ch 3: output voltage at J2, AC coupled; Ch 4: output current at J2; measured 46mV overshoot and 60mV undershoot
Figure 3-8 Buck Converter Load Transient, 0.5A to 1A, 12V Input