6/19/2003 - Designers of portable high-performance applications with low-power requirements can increase system run-times and save board space by using new 1.2-A synchronous step-down DC/DC converters introduced from Texas Instruments Incorporated (TI) (NYSE: TXN).
TI's TPS6204x family of step-down converters enables an extremely low quiescent current of 18 ľA and 95 percent conversion efficiency to conserve battery life in one-cell lithium-ion (Li-Ion) or three-cell nickel-metal-hydride (NiMH) and nickel-cadmium (NiCd) powered applications such as wireless PDAs, smartphones, notebooks and broadband equipment.
The converters reduce board space by integrating all necessary switching transistors and operating at a fixed frequency of 1.25 MHz to help minimize inductor size. In addition, the devices are available in small 3 mm x 5 mm, 10-pin micro-small outline packages (MSOPs), allowing designers to reduce both board space and system cost. The TPS6204x series manages input voltages from 2.5 V to 6 V and supply output voltages as low as 0.7 V, ideally suited to supply the ultra-low core voltage of today's low-power processors such as TI's TMS320C5000TM DSP platform and other microprocessors.
Pricing and Availability
The TPS6204x devices are available today in volume from TI and its authorized distributors. Suggested pricing in quantities of 1,000 is $2.09 per unit. Evaluation modules of the TPS6204x are available through power.ti.com.
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