Step-down DC/DC converter has true differential remote-voltage sensing

Claimed to be the first 40A, 16V IN, synchronous step-down DC/DC converter with true differential remote-voltage sensing, the SWIFT TPS548D22 buck converter has been released by Texas Instruments.

It features a small PowerStack package and integrated 2.9 or 1.2mOhm high-/low-side RDS(ON) power MOSFETs to drive ASICs and DSPs in space-constrained applications, says the company.

The 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 submicron processors.

It can be used with the company’s WEBENCH Power Designer tool for power-dense wired and wireless communications, enterprise and cloud computing and data-storage systems designs.

PowerStack QFN packaging (40pin, 5.0 x 7.0 x 1.5mm) offers very high power density and allows easy heat sinking from the single ground pad on the bottom of the IC, says the company, into the internal PCB ground layers with very few vias.

For reliable operation, internal soft start, input under-voltage protection and thermal shutdown are included.

http://www.ti.com

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