Industry's highest current 40A, 16VIN converter

31st May 2016

Nat Bowers

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Datasheet

Texas Instruments has introduced the industry's first 40A, 16V_IN synchronous step-down DC/DC converter with true differential remote-voltage sensing. The SWIFT TPS548D22 buck converter features a small PowerStack package and integrated MOSFETs to drive ASICs and DSPs in space-constrained applications.

When used with TI's WEBENCH Power Designer tool, the TPS548D22 enables engineers to get their power-dense wired and wireless communications, enterprise and cloud computing and data-storage systems designs to market faster.

The TPS548D22 DC/DC converter employs the D-CAP3 control-mode topology, features 0.5% reference-voltage accuracy over temperature and includes true differential remote-voltage sensing to meet voltage requirements of deep sub-µm processors.

The integrated 2.9/1.2mΩ high-/low-side RDS_(ON) power MOSFETs increase power density and system reliability. The PowerStack QFN packaging offers very high power density and allows easy heat sinking from the single ground pad on the bottom of the IC into the internal PCB ground layers with very few vias. Other features that help ensure predictable and reliable operation include internal soft start, input undervoltage protection and thermal shutdown.

To enable engineers to get started with the TPS548D22, TI offers the Power System for Enterprise Ethernet Switches Reference Design and TPS548D22 quick-start design tool, available here. The TPS548D22EVM-784 evaluation module is also available.

Available in volume now from TI and its authorised distributors, the TPS548D22 is packaged in a 40-pin, 5x7x1.5mm PowerStack QFN package and priced at $4.19 each in 1,000 unit quantities.