Texas Instruments has introduced two new power management integrated circuits (PMICs) for point-of-load (POL) designs. The TPS82671 and TPS84620 integrated power solutions ease design in portable electronics, communications and industrial applications.
The TPS82671 is claimed to be the industry’s smallest integrated plug-in power solution at 6,7 mm³, providing 90 milliamps per square millimetre. It combines all external components in TI’s new MicroSiP package with a 1 mm height – easing design for 600 mA portable electronics. The device operates at a very low 17 μA quiescent current and achieves power efficiency of greater than 90% from an input voltage of 2,3 V to 4,8 V. A PWM frequency dithering feature reduces noise and improves performance in radio frequency-sensitive designs.
The 6 A, 14,5 V TPS84620 achieves a power density of greater than 49 watts per cubic centimetre with up to 95% efficiency. The integrated step-down solution combines the inductor and passives onto one device, and requires only three external components, resulting in a complete solution in a space less than 200 mm³. The IC supports a variety of high-power telecom infrastructure and industrial systems that use DSPs and FPGAs.
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