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

2.3.2 3.3-V Output Voltage

GUID-20220408-SS0I-KXCF-HGJN-F9FZ6XVKXJVD-low.jpg Figure 2-5 Output Voltage vs Output Current
Note: Figure 2-6 illustrates LDO inputs at 3.3 V.
GUID-20220408-SS0I-QQJW-0T7C-6WSMHLCJVXDD-low.jpg Figure 2-6 Voltage at 3.3-V LDO Input vs Output Current