High-voltage dc/dc converter

  • 26-Jul-2010 01:50 EDT
3958Col.jpg

Linear Technology’s LT3958 is a high-input-voltage dc/dc converter for boost, flyback, SEPIC, and inverting power supply applications. It operates over an input voltage range from 5 to 80 V, has an onboard 84-V/3.5-A power switch, and can achieve efficiencies up to 96%. The component can generate either a positive or a negative regulated output voltage with its two voltage feedback error amplifiers and reference voltages. One set is for positive output voltages, and the other is for negative output voltages, both off a single feedback pin. With a programmable fixed or synchronizable operating frequency from 100 kHz to 1 MHz, designers can choose a range of inductors and capacitors to optimize size, performance, and cost.

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