Six-Channel Power Management IC for Portables from TI

TI's TPS65050 family of converters efficiently manages power in today's leading applications processors, such as TI's OMAPT processors, TMS320C55xT generation of digital signal processors (DSPs) and others. The six-channel devices maximize up to 95 percent efficiency across a wide range of point-of-load currents up to 1 A.

The TPS65050 integrates two 2.25-MHz step-down converters to support the system's core, peripheral, I/O or memory voltages. Both of the converters, which operate at input voltages from 2.5 V to 6 V, allow the device to operate in a power-save mode at light-load currents, and can be placed in a shutdown mode when power consumption is reduced to less than 1 uA. The TPS65050 also integrates two general-purpose, 400-mA linear dropout (LDO) voltage regulators and two 200-mA LDOs that can be enabled with an external input pin for each LDO. In addition, the LDOs support an input voltage between 1.5 V and 6.5 V, which allows each to be supplied from one of the integrated step-down converters or directly from the battery.

The TPS65050 family of converters is available in volume production from TI and its authorized distributors. The devices come in a 32-pin, 4 mm x 4 mm, leadless QFN package. The TPS65050's 2.25-MHz frequency also allows a designer to implement a tiny 2.2-uH inductor and ultra-small
capacitors to achieve a small solution size. Suggested retail pricing starts at $2.75 in 1,000-unit quantities. Evaluation modules of the TPS65050, application notes and TI's comprehensive portfolio of power management ICs are available.