High Accuracy Ultralow I , 300 mA, Q anyCAP Low Dropout Regulator ADP3333 FEATURES FUNCTIONAL BLOCK DIAGRAM High accuracy over line and load: 0.8% 25C, Q1 IN OUT 1.8% over temperature THERMAL Ultralow dropout voltage: 230 mV (maximum) 300 mA ADP3333 R1 PROTECTION CC Requires only C = 1.0 F for stability OUT anyCAP is stable with any type of capacitor (including MLCC) g DRIVER m Current and thermal limiting R2 SD Low noise BAND GAP REF Low shutdown current: < 1 A 2.6 V to 12 V supply range 40C to +85C ambient temperature range GND Ultrasmall 8-lead MSOP package Figure 1. APPLICATIONS Cellular phones PCMCIA cards Personal digital assistants (PDAs) DSP/ASIC supplies GENERAL DESCRIPTION The ADP3333 is a member of the ADP333x family of precision ADP3333 low dropout (LDO) anyCAP voltage regulators. Pin compatible 4 NC with the MAX8860, the ADP3333 operates with a wider input V 2 IN IN V OUT 1 OUT voltage range of 2.6 V to 12 V and delivers a load current up to + C IN + C 1F OUT 300 mA. ADP3333 stands out from other conventional LDOs 1F SD GND with a novel architecture and an enhanced process that enables 7 3 ON it to offer performance advantages over its competition. Its NC = NO CONNECT OFF patented design requires only a 1.0 F output capacitor for Figure 2. Typical Application Circuit 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 ADP3333 achieves exceptional accuracy of 0.8% at room temperature and 1.8% over temperature, line, and load variations. The dropout voltage of the ADP3333 is only 140 mV (typical) at 300 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 1 A. The ADP3333 has ultralow quiescent current, 70 A (typical) in light load situations. Rev. B 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. Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 20012009 Analog Devices, Inc. All rights reserved. 02615-002 02615-001ADP3333 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 Junction Temperature ........................................... 10 Absolute Maximum Ratings ............................................................ 4 Shutdown Mode ......................................................................... 10 Thermal Resistance ...................................................................... 4 PCB Layout Considerations ...................................................... 10 ESD Caution .................................................................................. 4 Outline Dimensions ....................................................................... 11 Pin Configuration and Function Descriptions ............................. 5 Ordering Guide .......................................................................... 11 Typical Performance Characteristics ............................................. 6 REVISION HISTORY 4/09Rev. A to Rev. B 8/03Data Sheet Changed from Rev. 0 to Rev. A Changes to Voltage Accuracy, Line Regulation, Load Changes to Figure 1 ........................................................................... 1 Regulation, and Dropout Voltage Parameters, Table 1 ................ 3 Updated Output Capacitor Section.............................................. 10 Changes to Table 2 ............................................................................ 4 Updated Calculating Junction Temperature Section ................. 10 Added Thermal Resistance Section and Table 3 Renumbered Updated Outline Dimensions ....................................................... 11 Sequentially ....................................................................................... 4 Updated Ordering Guide .............................................................. 11 Changes to Table 4 ............................................................................ 5 Changes to Figure 5 and Figure 7 ................................................... 6 Changes to Figure 10, Figure 11, Figure 13, and Figure 15 ......... 7 Changes to Figure 16 and Figure 17 ............................................... 8 Changes to Output Capacitor Section and Calculating Junction Temperature Section ...................................................................... 10 Updated Outline Dimensions ....................................................... 11 Changes to Ordering Guide .......................................................... 11 Rev. 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