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.

A summary of the TPS566231EVM performance specifications is provided in Table 2-1. Specifications are given for an input voltage of 12 V and an output voltage of 1 V, unless otherwise noted. The ambient temperature is 25°C for all measurement, unless otherwise noted.