TPS84620 6A Synchronous Buck Integrated Power Solution

Texas Instruments' 6 A, 14.5 V TPS84620 achieves a power density of greater than 800 W/in³ with up to 95% efficiency and 30% better thermal dissipation than competitors do. This integrated step-down solution combines the inductor and passives onto one device and requires only three external components, resulting in a complete solution in a space less than 200 mm². The TPS84620 supports a variety of high-power telecom infrastructure and industrial systems that use DSPs and FPGAs.

Overview

The TPS84620RUQ is an easy-to-use integrated power solution that combines a 6A DC/DC converter with power MOSFETs, an inductor, and passives into a low profile, BQFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.

The 9x15x2.8mm BQFN package is easy to solder onto a PCB and allows a compact point-of-load design with greater than 90% efficiency and excellent power dissipation with a thermal impedance of 13°C/W junction to ambient. The device delivers the full 6A rated output current at 85°C ambient temperature without airflow.

The TPS84620 offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering performance DSPs and FPGAs. The advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.