SLVUAM8B December   2015  – August 2021 TPS54A20

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Before You Begin
    2. 1.2 Background
    3. 1.3 Performance Specification Summary
    4. 1.4 Modifications
      1. 1.4.1 Output Voltage Setpoint
      2. 1.4.2 On Time
      3. 1.4.3 Adjustable UVLO
  3. 2Test Setup and Results
    1. 2.1  Input/Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Load Regulation
    4. 2.4  Output Voltage Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up
    10. 2.10 Thermal Image
  4. 3Board Layout
    1. 3.1 Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

1.3 Performance Specification Summary

A summary of the TPS54A20EVM-770 performance specifications is provided in Table 1-2. Specifications are given for an input voltage of VIN = 12 V and an output voltage of 1.2 V, unless otherwise specified. The TPS54A20EVM-770 is designed and tested for VIN = 9.2 V to 14 V. The ambient temperature is 25°C for all measurements, unless otherwise noted.

Table 1-2 TPS54A20EVM-770 Performance Specification Summary
SPECIFICATIONTEST CONDITIONSMINTYPMAXUNIT
VIN voltage range9.21214V
VIN start voltage9.39V
VIN stop voltage9.14V
Output voltage setpoint1.2V
Output current rangeVIN = 9.2 V to 14 V010A
Line regulationIO = 5 A, VIN = 9.2 V to 14 V±0.04%
Load regulationVIN = 12 V, IO = 0 A to 10 A±0.03%
Load transient responseIO = 0 A to 9 AVoltage change–60mV
Recovery time60µs
IO = 9 A to 0 AVoltage change60mV
Recovery time60µs
Loop bandwidthVIN = 12 V, IO = 5 A280kHz
Phase marginVIN = 12 V , IO = 5 A45degree
Input ripple voltageIO = 10 A90mVPP
Output ripple voltageIO = 10 A20mVPP
Output rise time512µs
Operating frequency2MHz
Maximum efficiencyTPS54A20EVM-770, VIN = 9 V, IO = 5 A84.7%