1.5% Regulation
Texas Instruments Inc. announces its smallest 2.25 MHz high-performance, step-down DC/DC converters, which support low-power DSPs and microcontroller-based portable electronics. Extending battery life in Bluetooth headsets, cell phones and other Li-Ion battery-powered applications, the converters save valuable board space. TI’s 300-mA, 600-mA and 1-A synchronous, step-down DC/DC converters can efficiently regulate output voltages down to 0.6 V with ۫.5% accuracy, enabling the devices to power the company’s newest C5000 and DaVinci™ DSPs, low-power MSP430 microcontrollers and other controllers with ultra-precise processor core supply requirements. The TPS62290 provides up to 1 A of output current, and can be powered by a single-cell lithium-ion (Li-Ion), three-cell nickel metal hydride (NiMH) and three-cell alkaline batteries with an input voltage range of 2.3 to 6 V. The converter, which operates at 15 µA quiescent current, enters a power save mode during light load operating conditions and maintains efficiency up to 95% over the entire load current range. For low-noise applications, the device can be forced into fixed frequency pulse width modulation (PWM) mode by pulling the MODE pin high. In the shutdown mode, the TPS62290’s current consumption is reduced to less than 1µA.
www.ti.com
972-644-5580
Texas Instruments Inc.
13532 N. Central Expressway, M/S 3807
Dallas, TX, 75243-1108
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