ADP3339

a High-Accuracy Ultralow IQ, 1.5 A, anyCAP® Low Dropout Regulator ADP3339 FUNCTIONAL BLOCK DIAGRAM IN THERMAL PROTECTION Q1 R1 CC gm R2 OUT FEATURES High Accuracy Over Line and Load: ؎ 0.9% @ 25؇ C, ؎1.5% Over Temperature Ultralow Dropout Voltage: 230 mV (Typ) @ 1.5 A Requires Only CO = 1.0 ␮F for Stability anyCAP = Stable with Any Type of Capacitor (Including MLCC) Current and Thermal Limiting Low Noise 2.8 V to 6 V Supply Range –40؇ C to +85؇ C Ambient Temperature Range SOT-223 Package APPLICATIONS Notebook, Palmtop Computers SCSI Terminators Battery-Powered Systems PCMCIA Regulator Bar Code Scanners Camcorders, Cameras DRIVER ADP3339 BANDGAP REF GND GENERAL DESCRIPTION The ADP3339 is a member of the ADP33xx family of precision low dropout anyCAP voltage regulators. The ADP3339 operates with an input voltage range of 2.8 V to 6 V and delivers a load current up to 1.5 A. The ADP3339 stands out from the conventional LDOs with a novel architecture and an enhanced process that enables it to offer performance advantages and higher output current than its competition. Its patented design requires only a 1.0 µF output capacitor for stability. This device is insensitive to output capacitor Equivalent Series Resistance (ESR), and is stable with any good quality capacitor, including ceramic (MLCC) types for space-restricted applications. The ADP3339 achieves exceptional accuracy of ± 0.9% at room temperature and ± 1.5% over temperature, line and load variations. The dropout v...