SLVUCX1 September   2024

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Configurations and Modifications
      1. 2.1.1 Multifunction Configuration (CFG1-5) Pins Selection
      2. 2.1.2 Setting Output Voltage Using External Feedback Configuration
  9. 3Implementation Results
    1. 3.1 Test Setup and Results
      1. 3.1.1 Input and Output Connections
      2. 3.1.2 Efficiency
      3. 3.1.3 Output Voltage Regulation
      4. 3.1.4 Load Transient and Loop Response
      5. 3.1.5 Output Voltage Ripple
      6. 3.1.6 Start-up and Shutdown with EN
      7. 3.1.7 Thermal Performance
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 Board Layout
      1. 4.2.1 Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks

1.3 Specification

A summary of the TPS548B23EVM performance characteristics is provided in Table 1-2. The TPS548B23EVM is designed and tested for VIN = 8V to 16V. Characteristics are given for an input voltage of VIN = 12V and output voltage of 1V (see Table 1-1), unless otherwise specified. The ambient temperature is room temperature (20°C to 25°C) for all measurements, unless otherwise noted.

Table 1-2 TPS548B23EVM Performance Specifications Summary
SPECIFICATION TEST CONDITIONS MIN TYP MAX UNIT
VIN voltage range 8 12 16 V
Input current VIN = 8V, IOUT = 20A 3 A
VIN start voltage Set by EN pin resistor divider 3.84 V
VIN stop voltage VIN falling 3.77 3.83 V
Output voltage setpoint 1 V
Output current range VIN = 8V to 16V 0 20 A
Line and load regulation VIN = 8V to 16V, IOUT = 0A to 20A ±0.14 %
Load transient response IOUT = 5A to 15A Voltage change -21 mV
IOUT = 15A to 5A Voltage change 24 mV
Output ripple voltage IOUT = 20A 6.8 mVPP
Soft-start time From start of switching to VFB = 0.5V, tSS = 2ms setting 1.4 2 2.6 ms
Current limit OCP = 21A setting by CFG pin selection 19 21 23 A
Switching frequency (fSW) fSW = 800kHz setting by CFG1-5 pin selection 800 kHz
Peak efficiency IOUT = 7.5 90 %
IC case temperature IOUT = 20A, 15-minute soak 77.4 °C