ST763ACDTR

The ST763A is a step-down switching regulator. It operates from 3.3V to 11V giving a fixed 3.3V output voltage, delivering up to 500mA. The mainly features are typical efficiency of 90%, quiescent current of 0.6mA, and only 0.2µA in shut-down. The PWM current mode control provides precise output regulation and very good transientresponse. Output voltage accuracy is guaranteed to be ±5% over line, load andtemperature variations. A minimum number of external components is used and the fixedfrequency switching allows easy filtering of output ripple and noise.Other features of this device are cycle-by-cycle current limiting, overcurrent limiting, under voltage lockout and programmable soft-start protection.A 22µH inductor works in most applications, so no sophisticated design is necessary.Package available is SO-8.Typical application are in 5V to 3.3V converters, cellular phones, portable instruments,hand-held computers, and peripherals.