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TI Releases Industry’s Smallest 12-V, 10-A DC/DC Step-Down Power Solution


Highly integrated solution eliminates input and output capacitors to provide excellent transient performance


Click for Larger Image - TI Releases Smallest 12-V, 10-A DC/DC Step-Down Power Solution

Texas Instruments has introduced a pair of 12-V, 10-A, 4-MHz step-down power modules that provide a power management solution that is 20 percent smaller than any other 10-A power module-based solution available today. The easy-to-use SWIFT TPSM84A21 and TPSM84A22 DC/DC modules integrate power MOSFETs, shielded inductors, input and output capacitors, and passives into a tiny, low profile footprint. In addition, it provides industry-leading performance, with as little as 1 percent overshoot in transient conditions without special magnetics or additional capacitors. By using the step-down power module together with TI’s WEBENCH® Power Designer, engineers can get their space-constrained point-of-load (POL) telecom, networking, and test and measurement power-supply designs to market faster.

Unlike other 10-A step-down modules available today, the highly integrated TPSM84A21 and TPSM84A22 require just one external voltage-setting resistor for a complete 12-V step-down power solution. For an application such as powering tightly regulated field-programmable gate array (FPGA) rails, a typical 10-A module would require up to 16 external capacitors. In comparison, the TPSM84A21 provides ultra-low output ripple due to the very high 4-MHz switching frequency and integrated 185 microfarads of output capacitance, which maintains regulation accuracy without any external capacitors.

Key features and benefits of the TPSM84A21 and TPSM84A22

  • Tiny solution: A 9-mm by 15-mm module and a single external voltage-setting resistor make up a complete solution footprint of 11 mm by 15 mm.
  • Low Profile: Measuring 2.3 mm in height, the small size, weight and bill of materials enable placement of the complete solution on the back side of a printed circuit board.
  • Best transient performance: 4-MHz switching enables ±1 percent overshoot without any external capacitors.
  • Easy to design: Integrated input and output capacitors eliminate the loop compensation and magnetics part selection from the design process. Use WEBENCH Power Designer to quickly create a complete 12-V, 10-A DC/DC step-down solution with just one voltage-setting resistor.


The company's Web site address is TI.com
[Reprinted with kind permission from Texas Instruments - Release Date, 13th February, 2017]


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