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ADP3339

Part Number	ADP3339
Manufacturer	Analog Devices
Description	High-Accuracy Ultralow IQ/ 1.5 A/ anyCAP Low Dropout Regulator
Published	Mar 23, 2005
Detailed Description	a High-Accuracy Ultralow IQ, 1.5 A, anyCAP® Low Dropout Regulator ADP3339 FUNCTIONAL BLOCK DIAGRAM IN THERMAL PROTECTIO...
Datasheet	ADP3339 PDF File

Overview

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 voltage of the ADP3339 is only 230 mV (typical) at 1.
5 A.
This device also includes a safety current limit and thermal overload protection.
The ADP3339 has ultralow quiescent current 130 µA (typical) in light load situations.
ADP3339 VIN 1␮F IN GND OUT 1␮F VOUT Figure 1.
Typical Application Circuit anyCAP is a registered trademark of Analog Devices Inc.
REV.
0 Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devic...

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