The TPS566231P is a single, D-CAP3™ mode, synchronous buck converter that requires a very low external component count. The TPS566231P is a cost-effective, high-voltage input, synchronous buck converter with integrated FETs. One of the key features of the TPS566231P is its ULQ (Ultra Low Quiescent), which is extremely beneficial for long battery life in low-power operation. The TPS566231P operates with wider supply input voltage ranging from 3 V to 18 V. The device uses DCAP3 control mode to provide the following:

• Fast transient response
• Good line
• Load regulation
• No requirement for external compensation
• Support to low-ESR output capacitors

The TPS566231P is a high-efficiency converter, and provides complete protection (OVP, UVP, OCP, OTP), and with PGOOD indicator. The TPS566238P is in continuous current mode. Others are same with the TPS566231P. Table 1-1.

The TPS566231PEVM and TPS566238PEVM are single, synchronous buck converter evaluation modules that provide 1 V at 6 A from a 3-V to 18-V input. This user’s guide describes the TPS566231PEVM performance.

A summary of the TPS566231PEVM 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.