High Efficiency Integrated Power Solution for Multicell Lithium Ion Applications Data Sheet ADP5080 FEATURES FUNCTIONAL BLOCK DIAGRAM Wide input voltage range: 4.0 V to 15 V SCL 2 I C High efficiency architecture OSCILLATOR INTERFACE SDA Up to 2 MHz switching frequency VOLTAGE 6 synchronous rectification dc-to-dc converters ENABLE CONTROL REFERENCE LOGIC Channel 1 buck regulator: 3 A maximum FAULT CHARGE Channel 2 buck regulator: 1.15 A maximum PUMP Channel 3 buck regulator: 1.5 A maximum 4V TO 15V LDO1 5.0V TO 5.5V, 400mA Channel 4 buck regulator: 0.8 A maximum Channel 5 buck regulator: 2 A maximum LDO2 3V TO 3.3V, 300mA Channel 6 configurable buck or buck boost regulator CH1 BUCK 4V TO 15V 0.80V TO 1.20V, 3A REGULATOR 2 A maximum for buck regulator configuration CH2 BUCK 1.5 A maximum for buck boost regulator configuration 4V TO 15V 1.0V TO 3.3V, 1.15A REGULATOR Channel 7 high voltage, high performance LDO regulator: CH 3 BUCK 4V TO 15V 1.2V TO 1.8V/ADJ, 1.5A REGULATOR 30 mA maximum CH 4 BUCK 2 low quiescent current keep-alive LDO regulators 1.8V TO 3.55V/ADJ, 0.8A 4V TO 15V REGULATOR LDO1 regulator: 400 mA maximum CH 5 BUCK 4V TO 15V 3.0V TO 5.0V, 2A REGULATOR LDO2 regulator: 300 mA maximum CH 6 Control circuit BUCK BOOST 3.5V TO 5.5V/ADJ 4V TO 15V REGULATOR BUCK ONLY: 2A Charge pump for internal switching driver power supply BUCK BOOST: 1.5A 2 I C-programmable output levels and power sequencing CH7 LDO 5V TO 25V 5V TO 12V, 30mA REGULATOR Package: 72-ball, 4.5 mm 4.0 mm 0.6 mm WLCSP (0.5 mm pitch) Figure 1. APPLICATIONS DSLR cameras Non-reflex (mirrorless) cameras Portable instrumentation GENERAL DESCRIPTION The ADP5080 is a fully integrated, high efficiency power All these features help to minimize the number of external solution for multicell lithium ion battery applications. The components and PCB space required, providing significant device can connect directly to the battery, which eliminates advantages for portable applications. The switching frequency the need for preregulators and, therefore, increases the battery is selectable on each channel from 750 kHz to 2 MHz. life of the system. Key functions for power applications, such as soft start, selectable The ADP5080 integrates two keep-alive LDO regulators, five preset output voltage, and flexible power-up and power-down synchronous buck regulators, a configurable four-switch buck sequences, are provided on chip and are programmable via the 2 boost regulator, and a high voltage LDO regulator. The ADP5080 I C interface with fused factory defaults. The ADP5080 is available is a highly integrated power solution that incorporates all power in a 72-ball WLCSP 0.5 mm pitch package. MOSFETs, feedback loop compensation, voltage setting resistor dividers, and discharge switches, as well as a charge pump to generate a global bootstrap voltage. 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 20132014 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. 11639-001ADP5080 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Channel 7: High Voltage LDO Regulator ............................... 29 Applications ....................................................................................... 1 Charge Pump .............................................................................. 29 Functional Block Diagram .............................................................. 1 Enabling and Disabling the Output Channels........................ 30 General Description ......................................................................... 1 Power-Good Function ............................................................... 31 Revision History ............................................................................... 2 Fault Function ............................................................................. 31 Specifications ..................................................................................... 3 Undervoltage Protection (UVP) .............................................. 32 Housekeeping Block Specifications ........................................... 4 Overvoltage Protection (OVP) ................................................. 33 DC-to-DC Converter Block Specifications .............................. 5 Applications Information .............................................................. 34 Linear Regulator Block Specifications ....................................... 7 Component Selection for the Buck and Buck Boost 2 Regulators .................................................................................... 34 I C Interface Timing Specifications ........................................... 8 Component Selection for the LDO Regulators ...................... 36 Absolute Maximum Ratings ............................................................ 9 PCB Layout Recommendations ............................................... 36 Thermal Resistance ...................................................................... 9 Thermal Considerations ............................................................ 37 ESD Caution .................................................................................. 9 2 I C Interface .................................................................................... 38 Pin Configuration and Function Descriptions ........................... 10 SDA and SCL Pins ...................................................................... 38 Typical Performance Characteristics ........................................... 12 2 I C Address .................................................................................. 38 Application Circuit ......................................................................... 18 Self-Clearing Register Bits ......................................................... 38 Theory of Operation ...................................................................... 19 2 I C Interface Timing Diagrams ................................................ 38 UVLO and POR .......................................................................... 19 Control Register Information ....................................................... 40 Discharge Switch ........................................................................ 19 Control Register Map ................................................................ 40 Keep-Alive LDO Regulators ..................................................... 19 Control Register Details ............................................................ 41 DC-to-DC Converter Channels ............................................... 22 Factory Default Options ................................................................ 61 Light Load and Other Modes of Operation for the DC-to-DC Converter Channels .................................. 27 Outline Dimensions ....................................................................... 63 Switching Clock .......................................................................... 28 Ordering Guide .......................................................................... 63 Soft Start Function ..................................................................... 29 REVISION HISTORY 4/14Revision A: Initial Version Rev. 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