TIDT261 March   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Considerations
    3. 1.3 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Load Regulation
    3. 2.3 Line Regulation
    4. 2.4 Thermal Images
      1. 2.4.1 4-V Input Voltage
        1. 2.4.1.1 3-A Output Current – Average Load Current
        2. 2.4.1.2 5-A Output Current – Peak Load Current
      2. 2.4.2 12-V Input Voltage
        1. 2.4.2.1 3-A Output Current
        2. 2.4.2.2 5-A Output Current
      3. 2.4.3 18-V Input Voltage
        1. 2.4.3.1 3-A Output Current
        2. 2.4.3.2 5-A Output Current
    5. 2.5 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
    5. 3.5 Start-Up Sequence
    6. 3.6 Shutdown Sequence

1.2 Considerations

The switching frequency is about 261 kHz. The circuit switches on at 6 V and switches of at 3 V. All measurements are done with the MODE: Forced PWM.

Unless otherwise mentioned, the output current was adjusted to a full load of 5 A with the resistor as load.

The jumper J100 is mounted on the bottom side of the board.
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