ADP3331: High Accuracy, Ultra-Low Quiescent Current LDO; SOT-23

The ADP3331 is a member of the ADP330x family of precision low dropout anyCAP™ voltage regulators. The ADP3331 operates with an input voltage range of 2.9 V to 12 V and delivers a load current up to 200 mA. The ADP3331 stands out from the conventional LDO's with a novel architecture and an enhanced process which enables it to offer performance advantages and higher output current than its compeititon. Its patented design requires only a 0.47 µF output capacitor for stability. This device is insensitive to capacitor Equivalent Series Resistance (ESR), and is stable with any good quality capacitor, including ceramic (MLCC) types for space restricted applications. The ADP3331 achieves exceptional accuracy of ± 0.7% at room temperature and ± 1.4% overall accuracy over temperature, line and load variations. The dropout voltage of the ADP3331 is only 140 mV (typical) at 200 mA. This device also includes a safety current limit, thermal overload protection and a shutdown feature. In shutdown mode, the ground current is reduced to less than 2 µA. The ADP3331 has ultralow quiescent current 34 µA (typical) in light load situations. The SOT-23-6 package has been thermally enhanced using Analog Device's proprietary Chip-on-Lead™ feature to maximize power dissipation.

ADP3331 特点

High Accuracy over Line and Load: ±0.7% @ 25°C, 1.4% over Temperature
Ultralow Dropout Voltage: 140 mV (Typ) @ 200 mA
Can Be Used as a High Current (>1 A) LDO Controller
Requires Only CO = 0.47 µF for Stability
anyCAP = Stable with Any Type of Capacitor (Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: 10 nA Typical
2.6 V to 12 V Supply Range
1.5 V to 11.75 V Output Range
–40°C to +85°C Ambient Temperature
Range
Ultrasmall Thermally Enhanced
Chip-on-Lead™ SOT-23-6
Lead Package

ADP3331 功能框图

ADP3331 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
ADP3331ART-REEL	量产	6 ld SOT-23	6	工业
ADP3331ART-REEL7	量产	6 ld SOT-23	6	工业
ADP3331ARTZ-REEL7	量产	6 ld SOT-23	6	工业