Document
Data Sheet
High Efficiency Integrated Power Solution for Multicell Lithium Ion Applications ADP5080
FEATURES
Wide input voltage range: 4.0 V to 15 V High efficiency architecture Up to 2 MHz switching frequency 6 synchronous rectification dc-to-dc converters
Channel 1 buck regulator: 3 A maximum Channel 2 buck regulator: 1.15 A maximum Channel 3 buck regulator: 1.5 A maximum Channel 4 buck regulator: 0.8 A maximum Channel 5 buck regulator: 2 A maximum Channel 6 configurable buck or buck boost regulator
2 A maximum for buck regulator configuration 1.5 A maximum for buck boost regulator configuration Channel 7 high voltage, high performance LDO regulator: 30 mA maximum 2 low quiescent current keep-alive LDO regulators LDO1 regulator: 400 mA maximum LDO2 regulator: 300 mA maximum Control circuit Charge pump for internal switching driver power supply I2C-programmable output levels and power sequencing Package: 72-ball, 4.5 mm × 4.0 mm × 0.6 mm WLCSP (0.5 mm pitch)
APPLICATIONS
DSLR cameras Non-reflex (mirrorless) cameras Portable instrumentation
GENERAL DESCRIPTION
The ADP5080 is a fully integrated, high efficiency power solution for multicell lithium ion battery applications. The device can connect directly to the battery, which eliminates the need for preregulators and, therefore, increases the battery life of the system.
The ADP5080 integrates two keep-alive LDO regulators, five synchronous buck regulators, a configurable four-switch buck boost regulator, and a high voltage LDO regulator. The ADP5080 is a highly integrated power solution that incorporates all power MOSFETs, feedback loop compensation, voltage setting resistor dividers, and discharge switches, as well as a charge pump to generate a global bootstrap voltage.
FUNCTIONAL BLOCK DIAGRAM
SCL SDA ENABLE FAULT
4V TO 15V
4V TO 15V 4V TO 15V 4V TO 15V 4V TO 15V 4V TO 15V 4V TO 15V 5V TO 25V
I2C INTERFACE
CONTROL LOGIC
LDO1
CH1 BUCK REGULATOR
CH 3 BUCK REGULATOR
CH 5 BUCK REGULATOR
CH7 LDO REGULATOR
OSCILLATOR
VOLTAGE REFERENCE
CHARGE PUMP
LDO2
CH2 BUCK REGULATOR
CH 4 BUCK REGULATOR
CH 6 BUCK BOOST REGULATOR
5.0V TO 5.5V, 400mA
3V TO 3.3V, 300mA
0.80V TO 1.20V, 3A
1.0V TO 3.3V, 1.15A
1.2V TO 1.8V/ADJ, 1.5A
1.8V TO 3.55V/ADJ, 0.8A
3.0V TO 5.0V, 2A
3.5V TO 5.5V/ADJ BUCK ONLY: 2A BUCK BOOST: 1.5A 5V TO 12V, 30mA
Figure 1.
All these features help to minimize the number of external components and PCB space required, providing significant advantages for portable applications. The switching frequency is selectable on each channel from 750 kHz to 2 MHz.
Key functions for power applications, such as soft start, selectable preset output voltage, and flexible power-up and power-down sequences, are provided on chip and are programmable via the I2C interface with fused factory defaults. The ADP5080 is available in a 72-ball WLCSP 0.5 mm pitch package.
11639-001
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
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2013–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
ADP5080
TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3
Housekeeping Block Specifications ........................................... 4 DC-to-DC Converter Block Specifications .............................. 5 Linear Regulator Block Specifications ....................................... 7 I2C Interface Timing Specifications ........................................... 8 Absolute Maximum Ratings............................................................ 9 Thermal Resistance ...................................................................... 9 ESD Caution.................................................................................. 9 Pin Configuration and Function Descriptions........................... 10 Typical Performance Characteristics ........................................... 12 Application Circuit .....................................................................