TPS54317EVM-159: 1.8V @ 3A, 3.1 ~ 3.5 Vin

This evaluation module is designed to demonstrate the small PCB areas that may be achieved when designing with the TPS54317 regulator, and does not reflect the high efficiencies that may be achieved when designing with this part. The switching frequency is set at a nominal 1100 kHz, allowing the use of a small-footprint 1.5-uH output inductor.

The high and low-side MOSFETs are incorporated inside the TPS54317 package along with the gate drive circuitry. The low drain-to-source on resistance of the MOSFETs allows the TPS54317 to achieve high efficiencies and helps to keep the junction temperature low at high output currents.

The compensation components are provided external to the IC, and allow for an adjustable output voltage and a customizable loop response. Additionally, the TPS54317 provides a full feature set including programmable undervoltage lockout, synchronization, adjustable switching frequency, enable, and power-good functions.