High Accuracy, Low I , anyCAP Q Adjustable Low Dropout Regulator ADP3334 FEATURES FUNCTIONAL BLOCK DIAGRAM High Accuracy over Line and Load: 0.9% 25 C, 1.8% over Temperature Q1 IN OUT 500 mA Current Capability Ultralow Dropout Voltage ADP3334 THERMAL PROTECTION CC Requires Only C = 1.0 F for Stability O anyCAP = Stable with Any Type of Capacitor FB g DRIVER m (Including MLCC) Current and Thermal Limiting SD BAND GAP Low Noise REF Low Shutdown Current: < 1.0 A (Typ) 2.6 V to 11 V Supply Range 1.5 V to 10 V Output Range GND 40 C to +85 C Ambient Temperature Range APPLICATIONS Cellular Phones TFT LCD Modules Camcorders, Cameras Networking Systems, DSL/Cable Modems Cable Set-Top Boxes DSP Supplies Personal Digital Assistants GENERAL DESCRIPTION The ADP3334 is available in three different package options: The ADP3334 is a member of the ADP333x family of precision 1. Excellent thermal capability, space saving 3 mm 3 mm LFCSP. low dropout anyCAP voltage regulators. The ADP3334 operates 2. Popular low profile MSOP-8. with an input voltage range of 2.6 V to 11 V and delivers a continuous load current up to 500 mA. The novel anyCAP 3. Traditional thermal enhanced SOIC-8. architecture requires only a very small 1 F output capacitor for stability, and the LDO is insensitive to the capacitors equivalent ADP3334 series resistance (ESR). This makes the ADP3334 stable with any IN OUT capacitor, including ceramic (MLCC) types for space restricted V IN IN OUT V OUT applications. R1 C C NR IN C OUT FB 1 F The ADP3334 achieves exceptional accuracy of 0.9% at room 1 F SD GND temperature and 1.8% over temperature, line, and load. The R2 dropout voltage of the ADP3334 is only 200 mV (typical) at OFF ON 500 mA. This device also includes a safety current limit, ther- mal overload protection, and a shutdown feature. In shutdown Figure 1. Typical Application Circuit mode, the ground current is reduced to less than 1 A. The ADP3334 has low quiescent current of 90 A (typical) in light load situations. C REV. 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 rights of third parties that One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. may result from its use. No license is granted by implication or otherwise Tel: 781/329-4700 www.analog.com under any patent or patent rights of Analog Devices. Trademarks and Fax: 781/461-3113 2014 Analog Devices, Inc. All rights reserved. registered trademarks are the property of their respective companies.1, 2, 3 (V = 6.0 V, C = C = 1.0 F, T = 40 C to +85 C, unless otherwise noted.) IN IN OUT A ADP3334SPECIFICATIONS Parameter Symbol Conditions Min Typ Max Unit OUTPUT 4 Voltage Accuracy V V = V + 0.4 V to 11 V 0.9 +0.9 % OUT IN OUT(NOM) I = 0.1 mA to 500 mA L T = 25C A V = V + 0.4 V to 11 V 1.8 +1.8 % IN OUT(NOM) I = 0.1 mA to 500 mA L T = 85C A V = V + 0.4 V to 11 V 2.3 +2.3 % IN OUT(NOM) I = 0.1 mA to 500 mA L T = 150C J 4 Line Regulation V = V + 0.4 V to 11 V 0.04 mV/V IN OUT(NOM) I = 0.1 mA L T = 25C A Load Regulation I = 0.1 mA to 500 mA 0.04 mV/mA L T = 25C A Dropout Voltage V V = 98% of V DROP OUT OUT(NOM) I = 500 mA 200 400 mV L I = 300 mA 140 250 mV L I = 100 mA 60 140 mV L I = 1 mA 10 mV L Peak Load Current I V = V + 1 V 800 mA LDPK IN OUT(NOM) Output Noise V f = 10 Hz100 kHz, C = 10 F 27 V rms NOISE L I = 500 mA, C = 10 nF L NR f = 10 Hz100 kHz, C = 10 F 45 V rms L I = 500 mA, C = 0 nF L NR 5 GROUND CURRENT In Regulation I I = 500 mA 4.5 10 mA GND L I = 300 mA 2.6 6 mA L I = 50 mA 0.5 1.5 mA L I = 0.1 mA 90 130 A L In Dropout I V = V 100 mV 150 450 A GND IN OUT(NOM) I = 0.1 mA L In Shutdown I SD = 6 V, V = 11 V 0.9 3 A GNDSD IN SHUTDOWN Threshold Voltage V LDO OFF 2.0 V THSD LDO ON 0.4 V SD Input Current I 0 SD 5 V 1.2 3 A SD Output Current in Shutdown I SD = 2 V, V = 11 V 0.01 5 A OSD IN NOTES 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC) methods. 2 Ambient temperature of 85C corresponds to a junction temperature of 125C under pulsed full load test conditions. 3 Application stable with no load. 4 V = 2.6 V to 11 V for V 2.2 V. IN OUT(NOM) 5 Ground current includes current through external resistors. Specifications subject to change without notice. 2 REV. C