SLUUC76B November   2019  – April 2021 TPS566231

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Output Voltage Setpoint
  5. 4Test Setup and Results
    1. 4.1 Input/Output Connections
    2. 4.2 Start-Up Procedure
    3. 4.3 Start-Up
    4. 4.4 Shut-Down
    5. 4.5 Output Voltage Ripple
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Board Profile, Schematic, and List of Materials
    1. 6.1 Board Profile
    2. 6.2 Schematic
    3. 6.3 List of Materials
  8. 7References
  9. 8Revision History

1 Introduction

The TPS566231 is a single, D-CAP3™ mode, synchronous buck converter requiring a very low external component count. The TPS566231 is a cost effective, high-voltage input, synchronous buck converter with integrated FETs. One of the key features of the TPS566231 is its ULQ (Ultra Low Quiescent), which is extremely beneficial for long battery life in low power operation. The TPS566231 operates with wider supply input voltage ranging from 3 V to 18 V. It uses DCAP3™ control mode to provide a fast transient response, good line, load regulation, no requirement for external compensation, and supports low ESR output capacitors. The TPS566231 is a high-efficiency converter, and provides complete protection OVP, UVP, OCP, OTP. Table 1-1.

The TPS566231EVM evaluation module (EVM) is a single, synchronous buck converter providing 1 V at 6 A from 3-V to 18-V input. This user’s guide describes the TPS566231EVM performance.

Table 1-1 Input Voltage and Output Current Summary
EVMInput Voltage (VIN) RangeOutput Current (IOUT) Range
TPS566231EVM3 V to 18 V0 A to 6 A