EVALUATION KIT AVAILABLE Click here to ask an associate for production status of specific part numbers. MAX77642/MAX77643 Ultra Configurable PMIC Featuring 93% Peak Efficiency Single-Inductor, 3-Output Buck- Boost, 1-LDO for Long Battery Life General Description Benefits and Features The MAX77642/MAX77643 provide power supply solu- Highly Integrated tions for low-power applications where size and efficiency 3x Output, Single-Inductor Multiple-Output (SIMO) are critical. The IC features a SIMO buck-boost regulator Buck-Boost Regulator that provides three independently programmable power Supports Wide Output Voltage Range from 0.5V rails from a single inductor to minimize total solution size. to 5.5V for all SIMO Channels A 150mA LDO provides ripple rejection for audio and other 1x 150mA LDO noise-sensitive applications. The LDO can also be config- 100mA in LSW mode ured as load switches to manage power consumption by 2x GPIOs (MAX77643) disconnecting external blocks when not required. Watchdog Timer (MAX77643) The MAX77642 s SIMO and LDO output voltages are in- Ultra Low-Power SIMO dividually programmable through resistors. A peak current 5A Operating Current (3x SIMO Channels + 1x limit input is used to set both the inductor s peak current LDOs) limits of the device with a single resistor. Individual enable 1A Operating Current per SIMO Channel pins combined with the flexible resistor programmability al- 0.3A Shutdown Current lows the device to be tailored for many applications. 93% Peak Efficiency in Boost-Only Mode 91% Peak Efficiency in Buck-Only Mode This MAX77643 s SIMO and LDO output voltages are in- Less Than 20mVpp Output Ripple at V = 1.8V 2 OUT dividually programmable through I C and in addition, in- Automatic Low-Power Mode to Normal-Power cludes two GPIOs with alternate modes for scalability. A Mode Transition 2 bidirectional I C serial interface allows for configuring and checking the status of the devices. An internal on/off con- Flexible and Configurable troller provides a controlled startup sequence for the regu- Ultra-Configurable Resistor Programmable Output lators and provides supervisory functionality while they are Voltages (MAX77642) 2 on. Numerous factory programmable options allow the de- I C-Programmable Output Voltages (MAX77643) vice to be tailored for many applications, enabling faster Small Size time to market. 2 4.24mm Wafer-Level Package (WLP) 25-Bump, 0.4mm Pitch, 5 x 5 Array Applications Next Generation Hearables Fitness, Health, and Activity Monitors Safety and Security Monitors Portable Consumer Devices Ordering Information appears at end of data sheet. 19-100912 Rev 4 10/21 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 2021 Analog Devices, Inc. All rights reserved.MAX77642/MAX77643 Ultra Configurable PMIC Featuring 93% Peak Efficiency Single-Inductor, 3-Output Buck-Boost, 1-LDO for Long Battery Life Applications Simplified Block Diagram ULTRA CONFIGURABLE SIMO *GPIO/nRST/NIRQ MAX77643*MAX77643* FEATURING 91% PEAK SSIIMMOO EEFFFFIICCIIEENNCCYY NOT SHOWN 100 EFFICIENCY SYSA IN SBB 2.7V TO 5.5V + 95 DC INPUT PGND GND 90 IN LDO APPLICATION LXA PROCESSOR LXB 85 SBB0 2.0V SBB1 BST 1.2V VOUT= 1.8V 80 SBB2 3.3V VOUT = 1.2V V = V = 3.7V SYSA IN SBB 75 L = 1.5H PROGRAMMABLE nEN I = 0.5A PUSH-BUTTON V PEAK VOUT = 0.8V IO 1.8V MODES LDO 70 0.0001 0.001 0.01 0.1 I (A) OUT MAX77642MAX77642 SYSA IN SBB Li-Ion + PGND GND LXA LXB IN LDO BST SBB0 2.0V RSET SBB0 SBB1 1.2V SYSTEM SBB2 3.3V RESOURCES RSET SBB1 LDO 1.8V RSET SBB2 RSET LDO EN0 EN1 ENABLE LOGIC INPUTS RSET IPK EN2 ENLDO www.analog.com Analog Devices 2 EFFICIENCY (%)