The Texas Instruments TPS65090 front-end power-management IC targets battery-powered applications based on ARM Cortex A9 and A15 processors. It integrates all power-management functions and maximizes power efficiency to extend battery runtime in tablets and other portable electronics by 20%, simplify design, and reduce board space by 60% compared to a discrete approach, according to the company.
The power-management unit integrates a 4-A switching PowerPath charger that cuts charging time in half, TI says. The TPS65090 also integrates three 5-A dc-dc step-down converters, seven load switches, two always-on low-dropout regulators (LDOs), and a 10-channel analog-to-digital converter (ADC). The power switches allow independent control of each subsystem, and the 10-bit ADC enables easy, accurate modeling of power consumption, according to TI.
Furthermore, the TPS65090 provides up to 95% efficiency across 8- to 12-V output voltages for two to three cells in series as well. And by integrating 15 functions into one front-end circuit, it reduces the bill of materials and achieves a 60% smaller solution than discrete ICs, the company says.
Available in multi-row quad flat no-lead (QFN) packaging, the TPS65090 costs $4.95 in 1000-unit quantities. To order free samples, go to www.ti.com/tps65090-pr. The TPS65090EVM evaluation module is available at www.ti.com/tool/tps65090evm as well.