Analog Devices MAX77655 Product Info

• 4x Buck-Boost Regulators, 1x Inductor
• 2.5V to 5.5V Input Voltage Range
• 0.5V to 4.0V Output Voltage Range
• 700mA Total Output Current (3.7V_IN, 1.8V_OUT)
• Single-Inductor Multiple-Outputs (SIMO)
• Up to 90% Efficiency
  • 6.9µA Typical I_Q with Two Outputs Enabled in Low-Power Mode
• I²C Interface and Dedicated Enable Pin
• Flexible Power Sequencer (FPS)
• 1.99mm x 1.99mm, 16-Bumps, 0.5mm Pitch Wafer-Level Package (WLP)
  • < 40mm² Solution Size

The MAX77655 is a highly efficient, complete power supply for low-power, ultra-compact applications. It provides four programmable buck-boost switching regulator outputs using only one inductor. Operating from a single Li-ion battery, the MAX77655 delivers a total of 700mA output current (3.7V_IN, 1.8V_OUT) in less than 40mm² solution size.

An integrated sequencer controls full startup while an I²C interface allows the MAX77655 to be dynamically configured and monitored.

This device is part of the single-inductor multiple-output (SIMO) product family.

Applications

• TWS Bluetooth™ Headphones/Hearables
• Fitness, Health, Activity Monitors, and Smart Watches
• Portable Devices
• Sensors Nodes and Consumer Internet of Things (IoT)