Description
The AAT1205 is a multi-input low-dropout regulator (LDO) specially designed for LAN cards. It provides advanced dual constant output supply 3.3V & 2.5V at the output capable of driving a 400-mA load. The output (OUT25) can be disabled by connecting EN25 pin to GND.
The AAT1205 is equipped with dual regulated power output for systems with multiple input sources and require dual constant voltage source with a low-dropout voltage. This is an intelligent power source selection device with a low-dropout regulator for either VCC50 or VSB50 inputs, and a low-resistance bypass switch for the AUX33 input.

FEATUREs
● Complete Power Management
● Automatic Input Voltage Selection
● Input Voltage Source Detector With
   Hysteresis
● 400-mA Load Current Capability With
   VCC50、 VSB50 or AUX33 Input Source
● Integrated Low rDS( ) on Switch
● Dual Regulated Output 3.3V（ fixed） & 2.5V
   （ fixed）
● Output Short Circuit Protection (SCP)