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Low IQ SIMO PMIC with 4-Outputs Delivering up to 700mA Total Output Current

20% Smaller and 15% Less in BOM Content

Product Details

The MAX77655 provides a highly-integrated power supply solution for low-power applications where size and efficiency are critical. Also, it features a single-inductor, multiple-output (SIMO) buck-boost regulator that provides four independently programmable power rails from a single inductor to minimize total solution size. The PMIC is capable of delivering a total of 700mA output current (3.7VIN, 1.8VOUT).

A bidirectional I2C 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 when the devices are on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market.

Key Features

  • Highly Integrated
    • 4x Output, Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator
      • Support Output Voltage Range from 0.5V to 4.0V for All SIMO Channels
      • 6.9μA Typical IQ with Two Outputs Enabled in Low-Power Mode
      • > 700mA Output Current at 3.7VIN and 1.8VOUT
      • Up to 90% Efficiency at 3.7VIN and 1.8VOUT
  • Flexible and Configurable
    • I2C Compatible Interface
    • Factory OTP Options Available
  • Small Size
    • 3.95mm2 Wafer-Level Package (WLP)
    • 16-Bump, 0.5mm-Pitch, 4 x 4 Array

Applications/Uses

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

Simplified Block Diagram

MAX77655: Simplified Block Diagram MAX77655: Simplified Block Diagram Zoom icon

Technical Docs

Design & Development

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Description

The MAX77655 evaluation kit (EV kit) allows for easy experimentation with the MAX77655 CCM single-inductor, multiple-output (SIMO) regulator and I2C interface

The Windows® -based software provides a user-friendly graphical interface as well as a detailed register-based interface to exercise the features of the MAX77655.

View Details

Features

  • Easy to Use
  • GUI-Driven I2C Interface
  • Assembled and Fully Tested
  • On-Board Electronic Loads
  • Electronic Loads with Steady-State, Transient, and Random Modes
  • On-Board ADC
  • Evaluation of Multiple On-Key Options
  • Wide Inductor Pads for Wide Range of Case Codes

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Support & Training

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Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.

Parameters

Parametric specs for Power Management ICs (PMICs)
VIN (V) (min) 2.5
VIN (V) (max) 5.5
# Step-Down Outputs 4
# Step-Up Outputs 4
VOUT (V) (min) 0.5
VOUT (V) (max) 5.5
Package/Pins WLP/16
Budgetary
Price (See Notes)
$1.50 @1k

Key Features

  • Highly Integrated
    • 4x Output, Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator
      • Support Output Voltage Range from 0.5V to 4.0V for All SIMO Channels
      • 6.9μA Typical IQ with Two Outputs Enabled in Low-Power Mode
      • > 700mA Output Current at 3.7VIN and 1.8VOUT
      • Up to 90% Efficiency at 3.7VIN and 1.8VOUT
  • Flexible and Configurable
    • I2C Compatible Interface
    • Factory OTP Options Available
  • Small Size
    • 3.95mm2 Wafer-Level Package (WLP)
    • 16-Bump, 0.5mm-Pitch, 4 x 4 Array

Applications/Uses

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

Description

The MAX77655 provides a highly-integrated power supply solution for low-power applications where size and efficiency are critical. Also, it features a single-inductor, multiple-output (SIMO) buck-boost regulator that provides four independently programmable power rails from a single inductor to minimize total solution size. The PMIC is capable of delivering a total of 700mA output current (3.7VIN, 1.8VOUT).

A bidirectional I2C 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 when the devices are on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market.

Simplified Block Diagram

MAX77655: Simplified Block Diagram MAX77655: Simplified Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.