SLVU358A February   2010  – January 2022 TPS51513

 

  1.   Trademarks
  2. 1 Description
    1. 1.1 Typical Application
    2. 1.2 Features
  3. 2 Electrical Performance Specifications
  4. 3 Schematic
  5. 4 Test Setup
    1. 4.1 Test Equipment
    2. 4.2 Recommended Test Setup
  6. 5 Configuration
    1. 5.1 Current Limit Trip Selection (J8: Trip Select)
    2. 5.2 Frequency Selection (J7: TON Select)
    3. 5.3 Overshoot Reduction Selection (J9: OSRTM Select)
    4. 5.4 VID Bits Selection (S1)
    5. 5.5 Sleep Mode Selection (SLP)
    6. 5.6 1.2-V Output Voltage Option (J10: VOUT selection)
  7. 6 Test Procedure
    1. 6.1 Line/Load Regulation and Efficiency Measurement Procedure
    2. 6.2 List of Test Points
    3. 6.3 Equipment Shutdown
  8. 7 Performance Data and Typical Characteristic Curves
    1. 7.1  Efficiency
    2. 7.2  Load Regulation
    3. 7.3  Line Regulation
    4. 7.4  Current Monitor Voltage
    5. 7.5  Output Ripple
    6. 7.6  Switching Node
    7. 7.7  Output Transient
    8. 7.8  Turn-On Waveform
    9. 7.9  Turn-Off Waveform
    10. 7.10 Bode Plot
  9. 8 EVM Assembly Drawing and PCB Layout
  10. 9 Bill of Materials
  11. 10Revision History

6.1 Line/Load Regulation and Efficiency Measurement Procedure

  1. Ensure that Load is set to constant resistance mode and to sink 0 ADC.
  2. Ensure that the jumper provided with the EVM on J6 is present before VIN is applied.
  3. Increase VIN from 0 V to 12 V. Use V1 to measure input voltage.
  4. Remove the jumper on J6 to enable the controller.
  5. Vary Load from 0 ADC to 20 ADC. VOUT must remain in load regulation.
  6. Vary VIN from 8 V to 14 V. VOUT must remain in line regulation.
  7. Put the jumper on J6 to disable the controller.
  8. Decrease Load to 0 A
  9. Decrease VIN to 0 V.