MAX77654
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MAX77654

Ultra-Low Power PMIC Featuring Single-Inductor, 3-Output Buck-Boost, 2-LDOs, Power-Path Charger for Small Li+, and Ship Mode

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Highly-Integrated Battery Charging and Power Solution for Low-Power, Size-Constrained Applications

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Part Details
Part Models 14
1ku List Price Starting From $2.24
Features
  • Low Power
    • Factory Ship Mode (<200nA IQ)
    • 300nA Shutdown Current
    • 6μA Typical IQ with all Outputs (3x SIMO and 2x LDOs) Enabled in Low-Power Mode
  • Smart Power Selector™ Li+/Li-Poly Charger
    • Programmable Charge Current from 7.5mA to 300mA
    • Programmable Charge Voltage from 3.6V to 4.6V
    • Programmable Termination Current from 0.375mA to 45mA
    • JEITA Battery Temperature Monitors for Safe Charging
  • Single-Inductor Multiple-Output (SIMO) Regulator
    • 3x Buck/Buck-Boost Regulators, 1x Inductor
    • 2.5V to 5.5V Input Voltage Range
    • 0.8V to 5.5V Output Voltage Range
    • 500mA Total Output Current (3.7VIN, 1.8VOUT)
    • Up to 91% Efficiency (3.7VIN, 1.8VOUT)
  • Low Dropout Regulator (LDO)
    • 2x Outputs Configurable as LDO or Load Switch (LSW)
    • 1.71V to 5.5V Input Voltage Range in LDO Mode
    • 1.3V to 5.5V Input Voltage Range in LSW Mode
    • 0.8V to 3.975V Output Voltage Range in LDO Mode
    • Up to 100mA Output Current
  • Flexible Power Sequencer (FPS)
  • 3x GPIO Resources
  • Dedicated Enable Pin
  • I2C Interface
  • Watchdog Timer
  • Analog MUX Output for Power Monitoring
  • 2.79mm x 2.34mm, 30-Bumps, 0.4mm Pitch Wafer-Level Package (WLP)
    • <40mm2 Solution Size
Additional Details
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The MAX77654 provides highly-integrated battery charging and power supply solutions for low-power applications where size and efficiency are critical. The IC features a SIMO buck-boost regulator that provides three independently programmable power rails from a single inductor to minimize total solution size.  Two 100mA LDOs provide ripple rejection for audio and other noise-sensitive applications. The LDOs can also be configured as load switches to manage power consumption by disconnecting external blocks when not required. A highly-configurable linear charger supports a wide range of Li+ battery capacities and includes battery temperature monitoring for additional safety (JEITA).

This device includes three GPIOs and an analog multiplexer that switches several internal voltage and current signals to an external node for monitoring with an external ADC. A bidirectional I2C serial interface allows for configuring and checking the status of the devices. An internal on/off controller provides a controlled startup sequence for the regulators and provides supervisory functionality while they are on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market.

Applications

  • Bluetooth Headphones, Hearables
  • Wireless Speakers
  • Fitness, Health, and Activity Monitors
  • Wearables
  • Safety and Security Monitors
  • Sensor Nodes
  • Portable Consumer Devices
  • Internet of Things (IoT)
Part Models 14
1ku List Price Starting From $2.24

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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MAX77654EVKIT

Evaluation Kit for the MAX77654

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MAX77654EVKIT

Evaluation Kit for the MAX77654

Evaluation Kit for the MAX77654

Features and Benefits

  • Easy to Use
  • GUI Drives I2C Interface
  • On-Board Thermistor
  • GPIO LEDs
  • Assembled and Fully Tested
  • On-Board Electronic Loads
    • Steady-State, Transient, and Random Modes
  • Demonstrates End-to-End Analog Multiplexer Implementation
  • On-Board ADC
  • Evaluates Both Push-Button and Slide-Switch On-Key Options

Product Detail

The MAX77654 evaluation kit (EV kit) allows for easy experimentation with various MAX77654 features. This includes the SIMO buck-boost regulator, linear regulators, analog multiplexer, smart battery charger, on/off controller, and I2C interface.

Windows®-based software provides a user-friendly graphical user interface (GUI) as well as a detailed register-based interface to exercise the features of the MAX77654.

Applications

  • Bluetooth Headphones, Hearables
  • Fitness, Health, and Activity Monitors
  • Internet of Things (IoT)
  • Portable Consumer Devices
  • Safety and Security Monitors
  • Sensor Nodes
  • Wearables
  • Wireless speaker

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