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Dual Output Synchronous Controller Integrates Tracking and Sequencing

Tue, 01/04/2011 - 7:35am
Analog Devices, Inc. announced the availability of the ADP1850 synchronous DC-to-DC switching controller high-current, high-efficiency applications. The controller provides a wide input voltage range of 2.75 V to 20 V, as well as configuration for dual-output (up to 2 x 25 A) or single interleaved-output (up to 50 A) systems. The ADP1850 provides accurate tracking capability between supplies and includes independent, precision ENABLE and accurate POWER_GOOD functions that allow daisy-chain sequencing between channels or another device – an important feature for powering multi-input voltage FPGA, DSP and ASIC devices. The controller’s integration includes a start-up linear regulator and a boot-strap diode for the high-side drive. The new DC-to-DC switching controller can be synchronized to an external clock to eliminate system beat frequencies between converters that can sometimes result in audible noise.

Analog Devices, Inc.
800-262-5643, www.analog.com 
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