TI unveils industry's smallest 12-V, 10-A DC/DC step-down power solution
Texas Instruments » TPSM84A21, TPSM84A22
Highly integrated SWIFT™ power modules eliminate input and output capacitors to provide best transient performance for space-constrained applications
Texas Instruments (TI) 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.
TPSM84A21 and TPSM84A22 key features and benefits
Availability, packaging and pricing
The TPSM84A21 with a voltage output of 0.55 V to 1.35 V and the TPSM84A22 with a voltage output of 1.2 V to 2.0 V are available in volume now through the TI store and authorized distributors. Offered in a 20-pin quad flat micro (QFM) package, the modules are priced at US$8.63 in 1,000-unit quantities. Order the TPS84A21EVM and TPS84A22EVM evaluation modules and download the PSpice transient models.
The TPSM84A21 and TPSM84A22 are the newest additions to TI's broad portfolio of DC/DC power modules that integrate inductors, FETs, compensation, and other passive components into a single package to save board space and simplify prototyping, design, and manufacturing.
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