Adjustable Output Ultralow I , 200 mA, Q a SOT-23, anyCAP Low Dropout Regulator ADP3331 FEATURES FUNCTIONAL BLOCK DIAGRAM High Accuracy over Line and Load: 0.7% 25 C, 1.4% over Temperature Q1 OUT IN Ultralow Dropout Voltage: 140 mV (Typ) 200 mA ADP3331 Can Be Used as a High Current (>1 A) LDO THERMAL PROTECTION CC Controller ERR Requires Only C = 0.47 F for Stability O FB g Q2 DRIVER m anyCAP = Stable with Any Type of Capacitor (Including MLCC) SD BAND GAP Current and Thermal Limiting REF Low Noise Low Shutdown Current: 10 nA Typical 2.6 V to 12 V Supply Range GND 1.5 V to 11.75 V Output Range 40 C to +85 C Ambient Temperature Range Ultrasmall Thermally Enhanced Chip-on-Lead ERR E OUT SOT-23-6 Lead Package R3 ADP3331 330k OUT APPLICATIONS V OUT V IN IN + C2 Cellular Telephones R1 + C1 0.47 F FB Notebook, Palmtop Computers 0.47 F SD GND R2 Battery-Powered Systems 64 PCMCIA Regulators ON OFF Bar Code Scanners Camcorders, Cameras Figure 1. Typical Application Circuit GENERAL DESCRIPTION for space restricted applications. The ADP3331 achieves excep- The ADP3331 is a member of the ADP330x family of precision tional accuracy of 0.7% at room temperature and 1.4% overall low dropout anyCAP voltage regulators. The ADP3331 operates accuracy over temperature, line, and load variations. The drop- with an input voltage range of 2.6 V to 12 V and delivers a load out voltage of the ADP3331 is only 140 mV (typical) at 200 mA. current up to 200 mA. The ADP3331 stands out from the This device also includes a safety current limit, thermal over- conventional LDOs with a novel architecture and an enhanced load protection, and a shutdown feature. In shutdown mode, the process that enables it to offer performance advantages and higher ground current is reduced to less than 2 mA. The ADP3331 has output current than its competition. Its patented design requires ultralow quiescent current 34 mA (typical) in light load situations. only a 0.47 mF output capacitor for stability. This device is insensi- The SOT-23-6 package has been thermally enhanced using tive to capacitor equivalent series resistance (ESR), and is stable Analog Devices proprietary Chip-on-Lead feature to maxi- with any good quality capacitor, including ceramic (MLCC) types mize power dissipation. 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 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 registered trademarks are the property of their respective companies. Fax: 781/461-3113 2014 Analog Devices, Inc. All rights reserved.(T = 40 C to +85 C, V = 7 V, C = 0.47 F, C = 0.47 F, unless otherwise A IN IN OUT 1, 2 noted.) ADP3331SPECIFICATIONS Parameter Symbol Conditions Min Typ Max Unit 3 OUTPUT VOLTAGE ACCURACY V = V + 0.25 V to 12 V, IN OUTNOM HIGH OUTPUT VOLTAGE RANGE V 2.35 V, OUTNOM I = 0.1 mA to 200 mA, L T = 25 C 0.7 +0.7 % A V = V + 0.25 V to 12 V, IN OUTNOM V 2.35 V, OUTNOM I = 0.1 mA to 150 mA, L T = 40 C to +85C 1.4 +1.4 % A V = V + 0.25 V to 12 V, IN OUTNOM V 2.35 V, OUTNOM I = 0.1 mA to 200 mA, L T = 20 C to +85C 1.4 +1.4 % A 3 OUTPUT VOLTAGE ACCURACY V = 2.6 V to 12 V, IN LOW OUTPUT VOLTAGE RANGE V = 1.5 V to 2.35 V, OUTNOM I = 0.1 mA to 200 mA, L T = 25 C 0.7 +0.7 % A V = 2.6 V to 12 V, IN V = 1.5 V to 2.35 V, OUTNOM I = 0.1 mA to 150 mA, L T = 40 C to +85C 1.4 +1.4 % A V = 2.6 V to 12 V, IN V = 1.5 V to 2.35 V, OUTNOM I = 0.1 mA to 200 mA, L T = 20 C to +85C 1.4 +1.4 % A LINE REGULATION DV V = V + 0.25 V to 12 V O IN OUTNOM DV T = 25C 0.06 mV/V IN A LOAD REGULATION DV I = 0.1 mA to 200 mA O L DI T = 25C 0.04 mV/mA L A GROUND CURRENT I I = 200 mA, T = 20C to +85C 1.6 4.0 mA GND L A I = 150 mA 1.2 3.1 mA L I = 50 mA 0.4 1.1 mA L I = 0.1 mA 34 50 mA L GROUND CURRENT I V = V 100 mV GND IN OUTNOM IN DROPOUT I = 0.1 mA 37 55 mA L 2 DROPOUT VOLTAGE V V = 98% of V DROP OUT OUTNOM I = 200 mA, T = 20C to +85C 0.14 0.23 V L A I = 150 mA 0.11 0.17 V L I = 10 mA 0.042 0.06 V L I = 1 mA 0.025 0.05 V L PEAK LOAD CURRENT I V = V + 1 V 300 mA LDPK IN OUTNOM OUTPUT NOISE V f = 10 Hz100 kHz, C = 10 mF NOISE L I = 200 mA, C = 10 nF, V = 3 V 47 mV rms L NR OUT f = 10 Hz100 kHz, C = 10 mF L I = 200 mA, C = 0 nF, V = 3 V 95 mV rms L NR OUT SHUTDOWN THRESHOLD V ON 2.0 V THSD OFF 0.4 V SHUTDOWN PIN INPUT CURRENT I 0 < SD 12 V 1.9 9 mA SD 0 < SD 5 V 1.4 6 mA GROUND CURRENT IN SHUTDOWN MODE I SD = 0 V, V = 12 V 0.01 2 mA GNDSD IN 2 REV. B