
Analog Devices
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