SLUUC72A September   2020  – October 2021 TPS542A50

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Before You Begin
  3. 2Description
    1. 2.1 Typical End-User Applications
    2. 2.2 EVM Features
    3. 2.3 TPS542A50EVM-059 PCB
  4. 3TPS542A50EVM-059 Bottom Circuit
    1. 3.1 Modifications
      1. 3.1.1 Output Voltage Setpoint
      2. 3.1.2 Enable and Undervoltage Lockout
      3. 3.1.3 Programming and External Clock Synchronization
      4. 3.1.4 Load Step with Function Generator
    2. 3.2 TPS542A50EVM-059 Bottom Circuit Schematic
    3. 3.3 Test Setup and Results
      1. 3.3.1  Input/Output Connections
      2. 3.3.2  Start Up Procedure
      3. 3.3.3  Electrical Performance Specifications and Results
      4. 3.3.4  Efficiency
      5. 3.3.5  Power Loss
      6. 3.3.6  Load Regulation
      7. 3.3.7  Transient Response
      8. 3.3.8  Loop Response
      9. 3.3.9  Output Voltage Ripple
      10. 3.3.10 Thermal Data
  5. 4TPS542A50EVM-059 Top Circuit (Small layout area design)
    1. 4.1 Modifications
      1. 4.1.1 Output Voltage Setpoint
      2. 4.1.2 Enable and Undervoltage Lockout
      3. 4.1.3 Programming and External Clock Synchronization
      4. 4.1.4 Load Step with Function Generator
    2. 4.2 TPS542A50EVM-059 Top Circuit (Small Layout Area) Schematic
    3. 4.3 Test Setup and Results
      1. 4.3.1  Input/Output Connections
      2. 4.3.2  Start Up Procedure
      3. 4.3.3  Electrical Performance Specifications and Results
      4. 4.3.4  Efficiency
      5. 4.3.5  Power Loss
      6. 4.3.6  Load Regulation
      7. 4.3.7  Line Regulation
      8. 4.3.8  Transient Response
      9. 4.3.9  Loop Response
      10. 4.3.10 Output Voltage Ripple
      11. 4.3.11 Start Up
  6. 5TPS542A50EVM-059 PCB Layout
  7. 6List of Materials
  8. 7Revision History

3.3.7 Transient Response

Figure 3-5 shows the transient response of the converter when operating in FCCM. The total undershoot and overshoot in response to a 10-A load transient (2-A to 12-A to 2-A) with a slew rate of 10 A/μs is 91.1 mV.

GUID-20200806-CA0I-TMH4-Z6BV-Q6Z0WPZLKFLD-low.png Figure 3-5 Transient response - 2-A to 12-A to 2-A load @10 A/μs, ΔVout = 91.1 mV, fsw = 1000 kHz, FCCM
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