Volver a Analog Devices Inc.

Analog Devices / Maxim Integrated MAX77278 Ultra-Low Power PMIC

Analog Devices MAX77278 Ultra-Low Power Power Management IC (PMIC) provides highly-integrated battery charging and power supply solutions for low-power applications where size and efficiency are critical. This PMIC features a Single-Inductor Multiple-Output (SIMO) buck-boost regulator that provides three independently programmable power rails from a single inductor. The MAX77278 PMIC provides a highly-configurable linear charger that supports a wide range of Li+ battery capacities and includes battery temperature monitoring. This device consists of a programmable current sink that can drive an IR LED, eight General-Purpose Input/Output (GPIO) pins, and an analog multiplex (AMUX) output.

The Analog Devices MAX77278 PMIC offers a bidirectional I2C interface that configures and checks the device's status. An internal on/off controller provides a controlled startup sequence for the regulators and supervisory functionality when the device is on. The MAX77278 PMIC comes with numerous factory programmable options, which allow the device to be tailored for many applications.

Features

  • Highly integrated
    • Smart power selector™ Li+/Li-Poly charger
    • Three output, SIMO buck-boost regulator
    • 50mA LDO
    • 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)
  • Flexible and configurable
    • I2C-compatible interface
    • Eight GPIOs
    • Factory OTP options are available
  • 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

Specifications

  • -40°C to 85°C operating temperature range
  • Low power
    • 0.3μA standby current
    • 16μA operating current
  • Small size
    • 3.15mm x 2.15mm x 0.7mm
    • 35-bump, 0.4mm-Pitch, 7 x 5 ball array, WLP
    • Small total solution size (24mm2)

Applications

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

Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX77278 Ultra-Low Power PMIC

Associated Tool

Analog Devices / Maxim Integrated Kit de evaluación MAX77278

PCB totalmente ensamblado y probado que demuestra el PMIC de potencia ultrabaja MAX77278.

Learn Moreacerca de Analog Devices / Maxim Integrated Kit de evaluación MAX77278 View Productsrelacionado con Analog Devices / Maxim Integrated Kit de evaluación MAX77278
Publicado: 2018-08-16 | Actualizado: 2023-04-25