General Descriptions
The AP131 is a 300mA, fixed output voltage, low dropout linear regulator. The Device included pass
element, error amplifier, band-gap, current limit and thermal shutdown circuitry. The device is ON when EN pin is set to logic high level.

„ Features
- Input voltage range is up to 7V
- Dropout voltage 400mV at 300mA output current
- Guaranteed 300mA output current.
- Internal Ron =1.5ΩPMOS draws no base current
- Low quiescent current 50µA
- Output voltage 2% accuracy, and 1.5V to 5V with  0.1V step
- Active low shutdown function (EN pin).
- Fast transient response
- Good load regulation
- Current limit and thermal shutdown protection
- SOT89-5L and SOT23-5L packages

„ Applications
- Wireless Communication
- Battery Powered device
- CD-ROM, DVD, and LAN Card
- PC peripheral