DESCRIPTION
The SD46520 is a step-down PWM control converter with a built-in internal power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation.
Current mode operation provides fast transient response and eases loop stabilization.
It provides cycle-by-cycle current limiting and thermal shutdown. In shutdown mode, the current is only 23μA.

FEATURES
* 2A output current
* 0.2Ω internal power MOSFET
* Stable with low ESR output ceramic capacitor
* Up to 95% conversion efficiency
* shutdown mode
* 400kHz fixed frequency
* Thermal shutdown
* Cycle-by-cycle over current protection
* 4.75－18V input voltage range
* 1.22－16V output voltage range
* Programmable under voltage control

APPLICATIONS
* Distributed power system
* Battery charger
* TFT LCD Monitors
* Portable DVD
* Set-Top Box