The Texas Instruments TPS54620 6-A synchronous step-down SWIFT™ converter is optimized for small designs

This post sponsored by Texas Instruments. 

The TPS54620 in thermally enhanced 3.50-mm by 3.50-mm QFN package is a full-featured 17 V, 6-A synchronous step-down converter optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs.

Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductors' footprint. The output voltage start-up ramp is controlled by the SS/TR pin, which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature. Applications include high-performance point of load regulation, as well as broadband, networking, and optical communications infrastructure.

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