2 MHz, Synchronous Boost DC-to-DC Converters Data Sheet ADP1606/ADP1607 FEATURES TYPICAL APPLICATION CIRCUITS L Up to 96% efficiency 2.2H 0.8 V to V input voltage range OUT INPUT VOLTAGE Low 0.9 V input start-up voltage ADP1606 0.8V TO V OUT FIXED 1 5 1.8 V fixed output voltage (ADP1606) VIN SW OUTPUT VOLTAGE 1.8V 1.8 V to 3.3 V adjustable output voltage range (ADP1607) C 6 IN VOUT 10F 23 A quiescent current ON PWM C OUT MODE 3 OFF AUTO 2 EN GND Fixed pulse-width modulation (PWM) and light load pulse 10F 4 frequency modulation (PFM) mode options Synchronous rectification True shutdown output isolation Figure 1. ADP1606 Internal soft start, compensation, and current limit L 2.2H 2 mm 2 mm, 6-lead LFCSP Compact solution size INPUT VOLTAGE ADP1607 0.8V TO V OUT ADJUSTABLE 1 5 APPLICATIONS VIN SW OUTPUT VOLTAGE 1.8V TO 3.3V C 6 VOUT IN 1-cell and 2-cell alkaline and NiMH/NiCd powered devices 10F R1 ON Portable audio players, instruments, and medical devices C 3 OUT OFF FB 2 EN GND 10F Solar cell applications R2 4 Miniature hard disk power supplies Power LED status indicators Figure 2. ADP1607 GENERAL DESCRIPTION The ADP1606/ADP1607 are high efficiency, synchronous, fixed current limit, and current mode architecture allow excellent frequency, step-up dc-to-dc switching converters with a 1.8 V transient response and a minimal external part count. fixed output voltage option and a 1.8 V to 3.3 V adjustable Other key features include fixed PWM and light load PFM output voltage option for use in portable applications. mode options, true output isolation, thermal shutdown (TSD), The 2 MHz operating frequency enables the use of small and logic controlled enable. Available in a lead-free, thin, 6-lead footprint, low profile external components. Additionally, the LFCSP package, the ADP1606/ADP1607 are ideal for providing synchronous rectification, internal compensation, internal fixed efficient power conversion in portable devices. Rev. D 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 20122014 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 10276-001 10276-101ADP1606/ADP1607 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Overview ..................................................................................... 10 Applications ....................................................................................... 1 Enable/Shutdown ....................................................................... 10 Typical Application Circuits ............................................................ 1 Modes of Operation ................................................................... 10 General Description ......................................................................... 1 Internal Control Features .......................................................... 11 Revision History ............................................................................... 2 Applications Information .............................................................. 12 Specif icat ions ..................................................................................... 3 Setting the Output Voltage ........................................................ 12 Absolute Maximum Ratings ............................................................ 4 Inductor Selection ...................................................................... 12 Thermal Operating Ranges ......................................................... 4 Choosing the Input Capacitor .................................................. 13 Thermal Resistance ...................................................................... 4 Choosing the Output Capacitor ............................................... 13 ESD Caution .................................................................................. 4 Layout Guidelines ........................................................................... 14 Pin Configurations and Function Descriptions ........................... 5 Outline Dimensions ....................................................................... 15 Typical Performance Characteristics ............................................. 6 Ordering Guide .......................................................................... 15 Theory of Operation ...................................................................... 10 REVISION HISTORY 7/14Rev. C to Rev. D Added ADP1606 ................................................................. Universal 12/13Rev. B to Rev. C Change to Features Section and General Description Section ... 1 Changes to Figure 21 ......................................................................... 9 Added Figure 1 Renumbered Sequentially .................................. 1 7/13Rev. A to Rev. B Changes to Table 1 ............................................................................ 3 Changes to Table 2 and Thermal Resistance Section ................... 4 Changes to Captions for Figure 22 and Figure 23 ......................... 9 Added Figure 3 and Table 5 Renumbered Sequentially ............. 5 Changed Synchronous Rectification Section.............................. 11 Changes to Table 4 ............................................................................ 5 Changes to Figure 11 ........................................................................ 7 12/12Rev. 0 to Rev. A Added Figure 26 and Figure 27....................................................... 9 Changes to Features Section ............................................................ 1 Changes to Figure 28, Overview Section, Modes of Operation Changed T to T in Specifications Section ................................... 3 J A Section, and PWM Mode Section ................................................ 10 Changed Figure 6, Figure 7, and Figure 8 Captions ..................... 6 Added Table 6 .................................................................................. 10 Changes to Table 5 .......................................................................... 12 Changes to Auto Mode Section, PFM Mode Section, and Mode Changes to Choosing the Output Capacitor Section ................ 13 Transition Section ........................................................................... 11 Changes to Setting the Output Voltage Section and Inductor 10/12Revision 0: Initial Version Selection Section ............................................................................. 12 Changes to Layout Guidelines Section ........................................ 14 Added Figure 30 .............................................................................. 14 Changes to Ordering Guide .......................................................... 15 Rev. D Page 2 of 16