High Accuracy, Ultralow I , 1.5 A, Q anyCAP Low Dropout Regulator Data Sheet ADP3339 FEATURES FUNCTIONAL BLOCK DIAGRAM High accuracy over line and load: 0.9% at 25C, Q1 OUT IN 1.5% over temperature ADP3339 R1 THERMAL Ultralow dropout voltage: 230 mV (typical) at 1.5 A PROTECTION CC Requires only C = 1.0 F for stability OUT anyCAP = stable with any type of capacitor (including MLCC) g DRIVER m Current and thermal limiting R2 Low noise BANDGAP REF 2.8 V to 6 V input voltage range 40C to +85C ambient temperature range SOT-223 package GND Figure 1. APPLICATIONS Notebooks, palmtop computers SCSI terminators ADP3339 Battery-powered systems V IN V OUT IN OUT PCMCIA regulators 1F 1 F GND Bar code scanners Camcorders, cameras Figure 2. Typical Application Circuit GENERAL DESCRIPTION The ADP3339 is a member of the ADP33xx family of precision, (ESR), and is stable with any good quality capacitor, including low dropout, anyCAP voltage regulators. The ADP3339 ceramic (MLCC) types for space-restricted applications. The operates with an input voltage range of 2.8 V to 6 V and delivers ADP3339 achieves exceptional accuracy of 0.9% at room a load current up to 1.5 A. The ADP3339 stands out from the temperature and 1.5% over temperature, line, and load conventional LDOs with a novel architecture and an enhanced variations. The dropout voltage of the ADP3339 is only 230 mV process that enables it to offer performance advantages and (typical) at 1.5 A. The device also includes a safety current limit higher output current than its competition. Its patented design and thermal overload protection. The ADP3339 has ultralow requires only a 1.0 F output capacitor for stability. This device quiescent current: 130 A (typical) in light load situations. is insensitive to output capacitor equivalent series resistance Rev. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 20012011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 02191-0-002 02191-0-001ADP3339 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation .........................................................................9 Applications....................................................................................... 1 Applications Information .............................................................. 10 Functional Block Diagram .............................................................. 1 Capacitor Selection .................................................................... 10 General Description ......................................................................... 1 Output Current Limit ................................................................ 10 Revision History ............................................................................... 2 Thermal Overload Protection .................................................. 10 Specifications..................................................................................... 3 Calculating Power Dissipation ................................................. 10 Absolute Maximum Ratings............................................................ 4 Printed Circuit Board Layout Considerations ....................... 10 ESD Caution.................................................................................. 4 Outline Dimensions....................................................................... 11 Pin Configuration and Function Descriptions............................. 5 Ordering Guide .......................................................................... 11 Typical Performance Characteristics ............................................. 6 REVISION HISTORY 8/11Rev. B to Rev. C Changes to Ordering Guide .......................................................... 11 4/11Rev. A to Rev. B Change to Features Section ............................................................. 1 Changed I to I Throughout..................................................... 3 L LOAD Updated Outline Dimensions ....................................................... 11 Changes to Ordering Guide .......................................................... 11 6/04Rev. 0 to Rev. A Updated Format..................................................................Universal Changes to Table 1............................................................................ 3 Changes to Thermal Overload Protection Section .................... 10 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 12 10/01Revision 0: Initial Version Rev. C Page 2 of 12