150 mA, Low Dropout, CMOS Linear Regulator ADP1710/ADP1711 FEATURES TYPICAL APPLICATION CIRCUITS Maximum output current: 150 mA ADP1710 V = 5V V = 3.3V IN OUT Input voltage range: 2.5 V to 5.5 V 1 IN OUT 5 Light load efficient 1F 1F I = 35 A with zero load GND 2 GND I = 40 A with 100 A load GND 3 EN NC 4 Low shutdown current: <1 A Low dropout voltage: 150 mV 150 mA load NC = NO CONNECT Initial accuracy: 1% Figure 1. ADP1710 with Fixed Output Voltage, 3.3 V Accuracy over line, load, and temperature: 2% ADP1710 Stable with small 1F ceramic output capacitor ADJUSTABLE 16 fixed output voltage options: 0.75 V to 3.3 V (ADP1710) V = 5.5V V = 0.8V(1 + R1/R2) IN OUT 1 IN OUT 5 Adjustable output voltage option: 0.8 V to 5.0 V 1F 1F (ADP1710 Adjustable) 2 GND 16 fixed output voltage options with reference bypass: R1 0.75 V to 3.3 V (ADP1711) 3 EN ADJ 4 R2 High PSRR: 69 dB 1 kHz Low noise: 40 V RMS Excellent load/line transient response Figure 2. ADP1710 with Adjustable Output Voltage, 0.8 V to 5.0 V Current limit and thermal overload protection Logic controlled enable ADP1711 5-lead TSOT package V = 5V V = 3.3V IN OUT 1 IN OUT 5 APPLICATIONS 1F 1F Mobile phones 2 GND Digital camera and audio devices 10nF 3 EN BYP 4 Portable and battery-powered equipment Post dc-dc regulation Figure 3. ADP1711 with Fixed Output Voltage and Bypass Capacitor, 3.3 V GENERAL DESCRIPTION The ADP1710/ADP1711 are low dropout linear regulators The ADP1710/ADP1711 are optimized for stable operation with that operate from 2.5 V to 5.5 V and provide up to 150 mA of small 1 F ceramic output capacitors, allowing for good transient output current. Utilizing a novel scaling architecture, ground performance while occupying minimal board space. An enable current drawn is a very low 40 A, when driving a 100 A pin controls the output voltage on both devices. There is also an load, making the ADP1710/ADP1711 ideal for battery- under-voltage lockout circuit on both devices, which disables the operated portable equipment. regulator if IN drops below a minimum threshold. The ADP1710 and the ADP1711 are each available in sixteen An internal soft start gives a typical start-up time of 80 s. fixed output voltage options. The ADP1710 is also available in Short-circuit protection and thermal overload protection an adjustable version, which allows output voltages that range circuits prevent damage to the devices in adverse conditions. from 0.8 V to 5 V via an external divider. The ADP1711 allows Both the ADP1710 and the ADP1711 are available in tiny for a reference bypass capacitor to be connected, which reduces 5lead TSOT packages, for the smallest footprint solution to all output voltage noise and improves power supply rejection. your power needs. Rev. 0 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 2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 06310-001 06310-003 06310-002ADP1710/ADP1711 TABLE OF CONTENTS Features .............................................................................................. 1 Enable Feature ...............................................................................8 Applications....................................................................................... 1 Undervoltage Lockout (UVLO) ..................................................9 Typical Application Circuits............................................................ 1 Application Information................................................................ 10 General Description ......................................................................... 1 Capacitor Selection .................................................................... 10 Revision History ............................................................................... 2 Current Limit and Thermal Overload Protection ................. 10 Specifications..................................................................................... 3 Thermal Considerations............................................................ 11 Absolute Maximum Ratings............................................................ 4 Printed Circuit Board Layout Considerations ....................... 12 Thermal Resistance ...................................................................... 4 Outline Dimensions ....................................................................... 13 ESD Caution.................................................................................. 4 Ordering Guide .......................................................................... 14 Pin Configurations and Function Descriptions ........................... 5 Typical Performance Characteristics ............................................. 6 Theory of Operation ........................................................................ 8 Adjustable Output Voltage (ADP1710 Adjustable) ................. 8 Bypass Capacitor (ADP1711) ..................................................... 8 REVISION HISTORY 10/06Revision 0: Initial Version Rev. 0 Page 2 of 16