Very Low Quiescent Current, 150 mA, LDO Regulator Data Sheet ADP165/ADP166 FEATURES TYPICAL APPLICATION CIRCUITS ADP165/ADP166 Very low quiescent current V = 2.3V V = 1.8V IN OUT I = 590 nA with 0 A load 1 VIN VOUT 5 Q 1F 1F I = 890 nA with 1 A load Q 2 GND Maintains very low quiescent current in dropout (pass ON 3 4 EN NC through mode) OFF I = 720 nA with 0 A load Q DROP NOTES I = 1200 nA with 1 A load Q DROP 1. NC = NO CONNECT. NOT CONNECTED INTERNALLY. Stable with 1 F 30% ceramic input and output capacitors Figure 1. 5-Lead TSOT ADP165/ADP166 with Fixed Output Voltage, 1.8 V Maximum operating load current (I ): 150 mA LOAD MAX ON Input voltage range: 2.2 V to 5.5 V EN 4 3 GND OFF Low shutdown current: 50 nA typical Low dropout voltage: 120 mV at 150 mA load ADP165/ NC 5 2 NC ADP166 V = 2.3V V = 1.8V Initial output voltage accuracy: 1% IN OUT VIN 6 1 VOUT Accuracy over line, load, and temperature: 3.5% 1F 1F 7 fixed output voltage options: 1.2 V to 3.3 V NOTES Adjustable output option can be set from 1.0 V to 4.2 V 1. NC = NO CONNECT. NOT CONNECTED INTERNALLY. PSRR: 72 dB at 100 Hz, V = 1.2 V OUT Figure 2. 6-Lead, 2 mm 2 mm LFCSP ADP165/ADP166 with Fixed Output Voltage, 1.8 V Current-limit and thermal overload protection Logic control enable ADP165/ADP166 Integrated output discharge resistor 1 2 Three package options V = 1.8V V = 2.3V OUT IN VIN VOUT A 5-lead TSOT package 1F 1F TOP VIEW 6-lead, 2 mm 2 mm LFCSP (Not to Scale) 4-ball, 0.5 mm pitch WLCSP ON EN GND OFF B APPLICATIONS Figure 3. 4-Ball WLCSP ADP165/ADP166 with Fixed Output Voltage, 1.8 V Portable and battery-powered equipment Post dc-to-dc regulation Portable medical devices Wireless sensor network (WSN) devices GENERAL DESCRIPTION The ADP165/ADP166 are very low quiescent current, low The ADP165/ADP166 are available in seven fixed output dropout (LDO), linear regulators that operate from 2.2 V to 5.5 V voltage options, ranging from 1.2 V to 3.3 V, and an adjustable and provide up to 150 mA of output current. The low 120 mV output option. The ADP165 also includes a switched resistor to dropout voltage at a 150 mA load improves efficiency and allows discharge the output automatically when the LDO is disabled. operation over a wide input voltage range. The ADP166 is identical to the ADP165, but it does not include the output discharge function. The ADP165/ADP166 are specifically designed for stable operation with a tiny 1 F 30% ceramic input and output capacitors to Short-circuit and thermal overload protection circuits prevent meet the requirements of high performance, space constrained damage in adverse conditions. The ADP165/ADP166 are applications. available in a tiny 5-lead TSOT, a 6-lead LFCSP, and a 4-ball, 0.5 mm pitch WLCSP package for the smallest footprint solution to meet a variety of portable power applications. Rev. A Document Feedback 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 2014 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 12188-001 12188-003 12188-002ADP165/ADP166 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 13 Applications ....................................................................................... 1 Applications Information .............................................................. 15 Typical Application Circuits ............................................................ 1 Capacitor Selection .................................................................... 15 General Description ......................................................................... 1 Enable Feature ............................................................................ 16 Revision History ............................................................................... 2 Undervoltage Lockout (UVLO) ............................................... 16 Specifications ..................................................................................... 3 Current-Limit and Thermal Overload Protection ................. 16 Recommended Specifications: Input and Output Capacitors 4 Thermal Considerations ............................................................ 17 Absolute Maximum Ratings ............................................................ 5 PCB Layout Considerations ...................................................... 20 Thermal Data ................................................................................ 5 Light Sensitivity of WLCSPs ..................................................... 21 Thermal Resistance ...................................................................... 5 Outline Dimensions ....................................................................... 22 ESD Caution .................................................................................. 5 Ordering Guide .......................................................................... 23 Pin ConfigurationS and Function Descriptions ........................... 6 Typical Performance Characteristics ............................................. 9 REVISION HISTORY 11/14Rev. 0 to Rev. A Change to Features Section ............................................................. 1 Change to Theory of Operation Section ..................................... 13 9/14Revision 0: Initial Version Rev. A Page 2 of 23