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 transient response. Output voltage accuracy is guaranteed to be ±5% over line, load and temperature variations. A minimum number of external components is used and the fixed frequency 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.

Key Features

  • Typical efficiency: 90%
  • Switch ON/OFF control
  • Available in SO-8 package
  • Output voltage 3.3V
  • Guaranteed output current: 500mA
  • Supply voltage range from 3.3V to 11V
  • Very low quiescent current: 0.6mA on mode 0.2µA OFF MODE
  • Operating temperature range: -40°C to 85°C
  • Typical operation frequency: 200KHz


Technical Documentation

Product Specifications
Description Version Size
DS2075 DS2075: 3.3V Step down current mode PWM DC-DC converters 3.2 258 KB

Publications and Collaterals

Description Version Size
Brochure Power management guide 05.2016 3 MB
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST763ACDTR SO-8 Tape And Reel NRND - 1000 NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST763ACDTR NRNDSO-8IndustrialEcopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.