APPLICATION NOTE 4565

Ramp Generator Controls DC-DC Converters

By: Eric Schlaepfer

Abstract: This circuit, based on a MAX6877, generates a sequence of three fixed-slew-rate ramps for driving as many DC-DC converters as necessary. Two or more supply voltages can be made to track by connecting their TRACK pins to the same ramp output, or the voltages can be sequenced by connecting their TRACK pins to separate ramp outputs.