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Six-channel PMICs roll for Li-powered portables

Posted: 05 Feb 2007 ?? ?Print Version ?Bookmark and Share

Keywords:power management? PMIC? processor? TI? converter?

Texas Instruments Inc. has introduced a family of six-channel power-management ICs (PMICs) for single-cell, Li-powered portable electronics. Combining high-performance power building blocks in a single 4-by-4mm package, the easy-to-design devices support power system requirements of advanced application processors used in smart phones, portable media players, navigation systems and other electronics.

95% efficiency
TI's TPS65050 family of converters efficiently manages power in leading applications processors. The six-channel devices maximize up to 95 percent efficiency across a wide range of point-of-load currents up to 1A.

The TPS65050 integrates two 2.25MHz step-down converters to support the system's core, peripheral, I/O or memory voltages. Both converters, which operate at input voltages from 2.5V to 6V, 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?A. The TPS65050 also integrates two general-purpose, 400mA LDO voltage regulators and two 200mA LDOs that can be enabled with an external input pin for each LDO. In addition, the LDOs support an input voltage between 1.5V and 6.5V, which allows each to be supplied from one of the integrated step-down converters or directly from the battery.

Small solution size
The TPS65050 family of converters is available in volume production from TI and its authorized distributors. The devices come in a 32-pin, 4-by-4mm, leadless QFN package. The TPS65050's 2.25MHz frequency also allows a designer to implement a tiny 2.2?H inductor and ultrasmall capacitors to achieve a small solution size.

Suggested retail pricing starts at $2.75 in 1,000-unit quantities.

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Related Datasheets
Part Number Description Category
? TPS65050 6-Channel Power Mgmt IC With Two Step-Down Converters & 4 Low-Input Voltage LDOs (Rev. A) ICs, Interface



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