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.

A summary of the TPS56637EVM-029 performance specifications is provided in Table 2-1. Specifications are given for an input voltage of V_IN = 24 V and an output voltage of 5 V, unless otherwise noted. The ambient temperature is 25°C for all measurement, unless otherwise noted.