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TI Introduces Six-Channel Power Management Integrated Circuit for Portable Electronic Designs

Power Conversion IC Delivers High Performance, Power Efficiency and Design Flexibility from a 4 mm x 4 mm Package

Jan 29, 2007

DALLAS (January 29, 2007) -- Texas Instruments Incorporated (TI) (NYSE: TXN) introduced today a family of six-channel power management integrated circuits (PMICs) for single-cell, lithium-powered portable electronics. Combining high-performance power building blocks in a single 4 mm x 4 mm 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. See: www.ti.com/sc07019

TI's TPS65050 family of converters efficiently manages power in today's leading applications processors, such as TI's OMAPTM processors, TMS320C55xTM 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.

Integrated Features of the TPS65050:

  • Two 600-mA, 95 percent efficient step-down converters for processor core and I/O supply. Additional versions incorporate 1,000-mA and 600-mA converters. 
  • Two 400-mA and two 200-mA general-purpose LDOs with high PSRR and input voltage range from 1.5 V to 6.5 V 
  • Fixed or adjustable output voltages 
  • 2.25-MHz fixed frequency operation 
  • Power save mode at light load currents 
  • 180 degrees out-of-phase operation 
  • 100 percent duty cycle for lowest dropout 
  • 32-uA typical quiescent current for the DC/DC converters 
  • Low ripple pulse frequency modulation (PFM) mode

Expanding Portfolio of Power Management Integrated Circuits

TI continues to expand its portfolio of high-performance integrated power management products to support portable electronics that use low-power application processors and DSPs. TI's integrated power devices range from the TPS65800 10-channel PMIC with integrated lithium-ion (Li-Ion) charger to the six-channel TPS65020 and TPS65023 devices for single-cell lithium applications. TI also recently introduced its 2.25-MHz, dual-channel TPS62400 converter with a single-wire interface.


Available Today

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 through power.ti.com.