STMicroelectronics ST763A
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.| Part No. | ST763A |
|---|---|
| Datasheet | ST763A Download |
| Manufacturer |  STMicroelectronics |
| Description | 3.3V Step down current mode PWM DC-DC converter |
| Buy | Stock & Price |
FEATURES
● Output voltage 3.3V● Supply voltage range from 3.3V to 11V
● Guaranteed output current: 500mA
● Typical operation frequency: 200KHz
● Very low quiescent current: 0.6mA on mode 0.2µA OFF MODE
● Switch ON/OFF control
● Typical efficiency: 90%
● Operating temperature range: -40°C to 85°C
● Available in SO-8 package
DESCRIPTION
The ST763A is a step-down switching regulator. 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 SO-8 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.
