GENERAL DESCRIPTION

The ADP3308 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators. It is pin-for-pin and functionally compatible with National’s LP2980, but offers performance advantages. The ADP3308 stands out from the conventional LDOs with a novel architecture and an enhanced process. Its patented design requires only a 0.47 µF output capacitor for stability. This device is stable with any type of capacitor regardless of its ESR (Equivalent Serial Resistance) value, including ceramic types for space restricted applications.

FEATURES

±1.2 Accuracy Over Line and Load Regulations @ 25°C

Ultralow Dropout Voltage: 80 mV Typical @ 50 mA

Requires Only CO = 0.47 μF for Stability

anyCAP = Stable with All Types of Capacitors (Including MLCC)

Current and Thermal Limiting

Low Noise

Low Shutdown Current: 1μA

2.8 V to 12 V Supply Range

–20°C to +85°C Ambient Temperature Range

Several Fixed Voltage Options

Ultrasmall SOT-23-5 Package

Excellent Line and Load Regulations

APPLICATIONS

Cellular Telephones

Notebook, Palmtop Computers

Battery Powered Systems

PCMCIA Regulator

Bar Code Scanners

Camcorders, Cameras