SLVUBE3B May   2018  – June 2021 TPS56637

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
  5. 4Test Setup and Results
    1. 4.1 Input/Output Connections
    2. 4.2 Start-Up Procedure
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic, List of Materials, and Reference
    1. 6.1 Schematic
    2. 6.2 List of Materials
    3. 6.3 Reference
  8. 7Revision History

1 Introduction

The TPS56637 is an adaptive on-time D-CAP3™ mode synchronous step-down DC/DC converter, being able to deliver 6-A continuous output current. This switch mode power supply (SMPS) IC is optimized for applications requiring very low power consumption, such as printers, DTV and monitor, by providing an Eco-mode™ (pulse-skipping). The TPS56637 integrates 30-V capable MOSFETs which is suitable for applications working from 24-V bus power lines. D-CAP3™ mode provides an easy-to-design, stable regulation with very little external components, and it supports cost-effective ceramic capacitors. To widen more applications, the TPS56637 device provides both FCCM and Eco-mode for selection at light-load operation. In addition, D-CAP3 mode output can support up to 13 V. Table 1-1 shows the rated input voltage and output current ranges for the evaluation module.

The TPS56637EVM-029 evaluation module (EVM) is a single, synchronous buck converter providing 5 V at 6 A from 4.5-V to 28-V input. This user’s guide describes the TPS56637EVM-029 performance.

Table 1-1 Input Voltage and Output Current Summary
EVMInput Voltage (VIN) RANGEOUTPUT CURRENT (IOUT) RANGE
TPS56637EVM-0294.5 V to 28 V0 A to 6 A