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Buck Controllers Provide Input Voltage Range to 75 V

Mon, 12/15/2008 - 8:20am

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ec92ic401awebWith input voltage range up to 75 V, four high-voltage, non-synchronous buck controllers from National Semiconductor feature 85 percent peak efficiency when powering low voltage loads from a high voltage supply. The controllers can regulate output voltages as low as 1.2 V at load currents in excess of 5 A. Each offers programmable switching frequency up to 1 MHz using a single resistor. The controllers feature feature an emulated current-mode (ECM) control PWM control topology. From $0.85 in 1,000-unit quantities.

National Semiconductor
1-800-272-9959, www.national.com 

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