1 Introduction

The TPS566238 is a single, D-CAP3™ mode, synchronous buck converter requiring a very low external component count. The TPS566238 is a cost effective, high-voltage input, synchronous buck converter with integrated FETs. One of the key features of the TPS566238 operates in continuous current mode, which maintains lower output ripple during all load conditions.

The TPS566238 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 TPS566238 is a high-efficiency converter, and provides complete protection OVP, UVP, OCP, OTP. See Table 1-1.

The TPS566238EVM 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 TPS566238EVM performance.