AIC2823
3A 23V Synchronous PWM Step-Down Converter
- FEATURES
-
- 3A Continuous Output Current
- Wide 4.75V to 23V Operating Input Range
- Ouput Adjustable from 0.925V to 12V (VREF=0.925V Version)
- Ouput Adjustable from 0.8V to 12V (VREF=0.8V Version)
- Up to 95% Efficiency
- Low Rds(on) Internal Switches: 100mohm and 85mohm
- <3uA Supply Current in Shutdown Mode
- 340KHz/550KHz Frequency
- Programmable Soft Start
- Thermal Shutdown
- Cycle by Cycle Over Current Protection
- Under Voltage Lockout
- Short Circuit Protection
- Over Voltage Protection
- APPLICATIONS
-
- Networking Systems
- Distributed Power Systems
- Pre-Regulator for Linear Regulators
- Set-top Box
- DESCRIPTION
- The AIC2823 is a monolithic synchronous step-down converter. The device can provide 3A output current from a 4.75V to 23V input supply.
The AIC2823’s current mode architecture and ex-ternal compensation allow the transient response to be optimized over a wide range of loads and capaci-tors. Current mode control also provides cycle-by-cycle current limit.
The AIC2823 provides over voltage protection and thermal shutdown. An adjustable soft-start prevents inrush current during turn on.
This device is available in a SOP-8 package, pro-vides a very compact system solution with minimal external components and PCB area.
- TYPICAL APPLICATION
