Date: 26/08/2009

Constant on-time buck converter with integrated linear regulator

Allegro has released a new dual output regulator IC A4402, designed with integrated buck 2.0 MHz switching frequency and linear regulator to provide dual output voltages required by microcontroller or DSP-based applications.

Key features are,

Adjustable soft start timer
Watchdog input
Power-on reset output
Adjustable 2% buck regulator
Adjustable 2% linear regulator
Enable input
6 to 50 V supply voltage range
Overcurrent protection
Undervoltage lockout (UVLO)
Thermal shutdown protection

Suggested applications include Photo and inkjet printers, Industrial controls, Distributed power systems, and Network applications

Package: 16-pin TSSOP package.
For more details visit www.allegromicro.com