TIDT278 April   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 Loss
    3. 2.3 Load Regulation
      1. 2.3.1 5-V Output Voltage
      2. 2.3.2 3.3-V Output Voltage
      3. 2.3.3 12-V Output Voltage
    4. 2.4 Line Regulation
      1. 2.4.1 5-V Outputs
      2. 2.4.2 3.3-V Output Voltage
      3. 2.4.3 12-V Output Voltage
      4. 2.4.4 Efficiency and Loss in Dependance of Input Voltage
    5. 2.5 Cross Regulation Light Load and Full Load
      1. 2.5.1 Bias Current 1 mA
      2. 2.5.2 Bias Current 5 mA
    6. 2.6 Thermal Images
    7. 2.7 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
      1. 3.1.1 Q1 Drain to GND
      2. 3.1.2 Q1 Gate to GND
      3. 3.1.3 D1 Anode to 12 VOUT
    2. 3.2 Input Voltage Ripple
    3. 3.3 Output Voltage Ripple
      1. 3.3.1 5-V Output Voltage (Primary)
      2. 3.3.2 5-V Output Voltage (Secondary)
      3. 3.3.3 3.3-V Output Voltage
      4. 3.3.4 12-V Output Voltage

1.2 Considerations

Resistors were used as load.

Unless otherwise mentioned, the input voltage was adjusted to 12 V and the output current was determined by resistors. The resistor values were calculated for nominal output voltage for reaching the maximum output current for each single output.