Texas Instruments introduced what it considers the industry’s smallest integrated step-up (boost) DC/DC power module for smartphones, tablets and other portable electronics.
The TPS81256 MicroSiP converter integrates the inductor and input/output capacitors to occupy less than 9-mm2 and be sub-1 mm in height
The 4-MHz, 600-mA TPS81256 module supports a 5-V output with a power density of 400 mW/mm3. The device extends battery life by reducing the supply current to 43 uA during light load operation. The TPS81256 also achieves power efficiency of greater than 90 percent from an input voltage of 2.5 V to 5.5 V, enabling it to efficiently manage 3 W over a full Li-Ion battery voltage range.
The module is available is priced at $1.70 in quantities of 1,000. The TPS81256EVM-121 evaluation module is also available.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.