EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX77655 Low I SIMO PMIC with 4-Outputs Delivering Q up to 700mA Total Output Current General Description Benefits and Features The MAX77655 provides a highly-integrated power supply Highly Integrated solution for low-power applications where size and effi- 4x Output, Single-Inductor Multiple-Output (SIMO) ciency are critical. Also, it features a single-inductor, multi- Buck-Boost Regulator ple-output (SIMO) buck-boost regulator that provides four Support Output Voltage Range from 0.5V to 4.0V independently programmable power rails from a single in- for All SIMO Channels ductor to minimize total solution size. The PMIC is capa- 6.9A Typical I with Two Outputs Enabled in Q ble of delivering a total of 700mA output current (3.7V , Low-Power Mode IN 1.8V ). > 700mA Output Current at 3.7V and 1.8V OUT IN OUT Up to 90% Efficiency at 3.7V and 1.8V 2 IN OUT A bidirectional I C interface allows for configuring and checking the status of the devices. An internal on/off con- Flexible and Configurable 2 troller provides a controlled startup sequence for the regu- I C Compatible Interface lators and provides supervisory functionality when the de- Factory OTP Options Available vices are on. Numerous factory programmable options al- Small Size low the device to be tailored for many applications, en- 2 3.95mm Wafer-Level Package (WLP) abling faster time to market. 16-Bump, 0.5mm-Pitch, 4 x 4 Array Applications Ordering Information appears at end of data sheet. TWS Bluetooth Headphones/Hearables Fitness, Health, Activity Monitors, and Smart Watches Simplified Block Diagram Portable Devices 1.8V SBB0 IN Sensors Nodes and Consumer Internet of Things (IoT) SBB1 1.1V SBB2 0.7V SBB3 3.3V 1.5H LXA LXB BST MAX77655MAX77655 nEN SDA SDA* SCL SCL * nIRQ nIRQ* VDD PVDD 10F GND PGND *PULLUP RESISTORS NOT DRAWN Bluetooth is a trademark of Bluetooth SIG, Inc 19-100853 Rev 1 10/20 2.5V TO 5.5VMAX77655 Low I SIMO PMIC with 4-Outputs Delivering up to Q 700mA Total Output Current TABLE OF CONTENTS General Description 1 Applications 1 Benefits and Features 1 Simplified Block Diagram . 1 Absolute Maximum Ratings 7 Package Information . 7 16 WLP 0.5mm Pitch 7 Electrical CharacteristicsGlobal Resources . 8 Electrical CharacteristicsSIMO Buck-Boost . 9 2 Electrical CharacteristicsI C Serial Interface . 11 Typical Operating Characteristics . 13 Pin Configuration . 17 MAX77655 . 17 Pin Description 17 Detailed Description 19 Part Number Decoding 19 Support Materials 20 Top-Level Interconnect Simplified Diagram 21 Detailed DescriptionGlobal Resources 22 Features and Benefits 22 Voltage Monitors 22 IN POR Comparator . 22 IN Undervoltage Lockout Comparator 22 IN Overvoltage Lockout Comparator . 23 Thermal Monitors 23 Thermal Shutdown . 23 Chip Identification 23 nEN Enable Input 23 nEN Manual Reset 24 nEN Triple-Functionality: Push-Button vs. Slide-Switch vs. Logic . 24 Debounced Input 25 nEN Internal Pullup Resistors to V . 25 IN Interrupts (nIRQ) 25 On/Off Controller 26 Top Level On/Off Controller . 27 Internal Wake-Up Flags . 28 On/Off Controller Actions . 29 Flexible Power Sequencer 30 www.maximintegrated.com Maxim Integrated 2