ADP3308

Obsolete

anyCAP® 50 mA Low Dropout Linear Regulator

Data Sheet (Rev. B) Product Selection Table

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Overview

±1.2% Accuracy Over Line and Load Regulations @ 25°C
Low Noise
Low Shutdown Current: 1 µA
Ultralow Dropout Voltage: 80 mV Typical @ 50 mA
2.8 V to 12 V Supply Range
Requires Only C_O = 0.47 µF for Stability

–20°C to +85°C Ambient Temperature
Range
anyCAP = Stable with All Types of Capacitors (Including MLCC)
Current and Thermal Limiting
Several Fixed Voltage Options
Ultrasmall SOT-23-5 Package
Excellent Line and Load Regulations

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. The ADP3308 achieves ±1.2% accuracy at room temperature and ±2.2% overall accuracy over temperature, line and load regulations. The dropout voltage of the ADP3308 is only 80 mV (typical) at 50 mA. This device also includes a current limit and a shutdown feature. In shutdown mode, the ground current is reduced to ~1 µA.