GENERAL DESCRIPTION

The ADP3310 is a precision voltage regulator controller that can be used with an external Power PMOS device such as the NDP6020P to form a two chip low dropout linear regulator. The low quiescent current (800 µA) and the Enable feature make this device especially suitable for battery powered systems. The dropout voltage at 1 A is only 70 mV when used with the NDP6020P, allowing operation with minimal headroom and prolonging battery useful life. The ADP3310 can drive a wide range of currents, depending on the external PMOS device used.

FEATURES

61.5 Accuracy Over Line, Load and Temperature

Low 800 mA (Typical) Quiescent Current

Shutdown Current: 1 mA (Typical)

Stable with 10 mF Load Capacitor

+2.5 V to +15 V Operating Range

Fixed Output Voltage Options: 2.8 V, 3 V, 3.3 V, 5 V

Up to 10 A Output Current

SO-8 Package

–40°C to +85°C Ambient Temperature Range

Internal Gate to Source Protective Clamp

Current and Thermal Limiting

Programmable Current Limit

Foldback Current Limit

APPLICATIONS

Desktop Computers

Handheld Instruments

Cellular Telephones

Battery Operated Devices

Solar Powered Instruments

High Efficiency Linear Power Supplies

Battery Chargers