MAX77278
Info: : PRODUCTION
searchIcon
cartIcon

MAX77278

Ultra-Low Power PMIC with 3-Output SIMO, Power Path Charger Optimized for Small Li+, 425mA Current Sink, and 8 GPIOs

Show More showmore-icon

Ultra-Low Power PMIC with 3-Output SIMO, Power Path Charger Optimized for Small Li+, 425mA Current Sink, and 8 GPIOs

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.86
Features
  • Highly Integrated
    • Smart Power Selector™ Li+/Li-Poly Charger
    • Three Output, SIMO Buck-Boost Regulator
    • 50mA LDO with SIMO Fixed Headroom Control
    • Programmable 250mA to 425mA Current Sink Driver
    • Analog MUX Output for Power Monitoring
    • Eight GPIOs (Configured for One-Button Wake-Up and Two-Button Shutdown)
  • Low Power
    • 0.3µA Standby Current
    • 16µA Operating Current
  • Charger Optimized for Small Battery Size
    • Programmable Fast-Charge Current from 7.5mA to 300mA
    • Programmable Battery Regulation Voltage from 3.6V to 4.6V
    • Programmable Termination Current from 0.375mA to 45mA
    • JEITA Battery Temperature Monitors Adjust Charge Current and Battery Regulation Voltage for Safe Charging
  • Flexible and Configurable
    • I2C-Compatible Interface
    • Eight GPIOs
    • Factory OTP Options Available
  • Small Size
    • 3.15mm x 2.15mm x 0.7mm
    • 35-Bump, 0.4mm-Pitch, 7x5 Ball Array, WLP
    • Small Total Solution Size (24mm2)
Additional Details
show more Icon

The MAX77278 provides a highly-integrated battery charging and power supply solution for low-power applications where size and efficiency are critical.The device features a single-inductor multiple-output (SIMO) buck-boost regulator that provides three independently programmable power rails from a single inductor to minimize total solution size. A 50mA LDO provides ripple rejection for audio and other noise-sensitive applications. A highly-configurable linear charger supports a wide range of Li+ battery capacities and includes battery temperature monitoring for additional safety (JEITA).

The device includes other features such as a programmable current sink that can be used to drive an IR-LED, 8 general-purpose input/output (GPIO) control pins, and an analog multiplex (AMUX) output that provides access to useful battery charging signals. A bidirectional I2C interface allows for configuring and checking the status of the device. An internal on/off controller provides a controlled startup sequence for the regulators and provides supervisory functionality when the device is on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market.

Design Solution: Choose a Tailored SIMO PMIC for Your Portable Design ›

Applications

  • Internet of Things (IoT) Gadgets
  • Remote Controls, Game Pads, Media Center Controllers
  • Smart Home Automation Pads, Thermostats, Battery-Powered User Interfaces
  • Wearables, Fitness and Health Monitors
Part Models 2
1ku List Price Starting From $2.86

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX77278EWB+
  • HTML
  • HTML
MAX77278EWB+T
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 27, 2023

- 2349

WAFER FAB

MAX77278EWB+

PRODUCTION

MAX77278EWB+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 27, 2023

- 2349

arrow down

WAFER FAB

MAX77278EWB+

PRODUCTION

MAX77278EWB+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

MAX77278EVKIT

Evaluation Kit for the MAX77278

zoom

MAX77278EVKIT

Evaluation Kit for the MAX77278

Evaluation Kit for the MAX77278

Features and Benefits

  • Easy to Use
    • GUI Drives I2C Interface
    • On-Board Thermistor
    • IR LED
    • GPIO Bank with Push-Buttons
    • Assembled and Fully Tested
  • Emulates System Loading
    • On-Board Electronic Load for LDO
    • Electronic Load has Steady-State, Transient, and Random Modes
  • Demonstrates End-to-End Analog Multiplexer Implementation
    • On-Board ADC
  • Evaluates Both Push-Button and Slider-Switch On-Key Options

Product Detail

The MAX77278 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the MAX77278. The EV kit allows for easy evaluation of the various MAX77278 resources, including the linear charger, SIMO, linear regulator, analog multiplexer, IR current sink, GPIOs and I2C interface.

Windows-based software provides a user-friendly graphical interface (GUI) as well as a detailed register-based interface to exercise the features of the MAX77278.

Applications

  • Internet of Things (IoT)
  • Remote Controls
  • Wearables

Recently Viewed