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

Simplify and Shrink Your Power Solution by a Factor of Two with Integrated SIMO and EZ Fuel Gauge

产品详情

主要特征

Parametric specs for Multifunction PMICs
VIN (V) (min) 2.7
VIN (V) (max) 5.5
# Step-Down Outputs 3
# Step-Up Outputs 3
# LDO Outputs 2
Battery Charger Features Battery Charger
Input Current Limit
JEITA
USB Input
VOUT (V) (min) 0.5
VOUT (V) (max) 5.5
Package/Pins THIN WLP/36
Budgetary
Price (See Notes)
2.49
缩小

简化框图

Technical Docs

支持和培训

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参量

Parametric specs for Multifunction PMICs
VIN (V) (min) 2.7
VIN (V) (max) 5.5
# Step-Down Outputs 3
# Step-Up Outputs 3
# LDO Outputs 2
Battery Charger Features Battery Charger
Input Current Limit
JEITA
USB Input
VOUT (V) (min) 0.5
VOUT (V) (max) 5.5
Package/Pins THIN WLP/36
Budgetary
Price (See Notes)
2.49

主要特征

  • Highly Integrated
    • 3x Output, Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator
      • Supports Wide Output Voltage Range from 0.5V to 5.5V for all SIMO Channels
      • Delivers up to 750mA Total Load Current
      • SBB2 can be Configured to 1.5A Peak Inductor Current Limit to Support a Heavily Loaded Rail
    • 2x 150mA LDO/LSW
    • Smart Power Selector™ Li+/Li-Poly Charger
    • 3x GPIO Resources
    • Analog MUX Output for Power Monitoring
    • Lowest Power Mode < 700nA IQ
    • Watchdog Timer
  • Low Power
    • 1µ A Shutdown Current
    • 11.2µA Operating Current (3 SIMO Channels + 2 LDOs + Fuel Gauge)
  • Charger Optimized for Small Li-Ion 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 Monitor Adjusts Charge Current and Battery Regulation Voltage for Safe Charging
  • Fuel Gauge ModelGauge m5 EZ
    • No Calibration Required for EZ Performance
    • Robust Performance Against Battery Variation
    • Die-Temperature or External Thermistor Measurement Capability
    • Integrated Internal Current Sensing Using Internal Sense Resistor
    • Compensates for Age, Current, and Temperature
    • Does Not Require Empty, Full, or Idle States
  • Flexible and Configurable
    • I2C-Compatible Interface and GPIO
  • Small Size
    • 9.55mm2 Wafer-Level Package (WLP)
    • 36-Bump, 0.5mm Pitch, 6x6 Array

应用/用途

  • Bluetooth Headphones, Hearables
  • Wireless Speakers
  • Wearables
  • Safety and Security Monitors
  • Sensor Nodes
  • Internet of Things (IoT)

描述

The MAX77658 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 highly-efficient and independently programmable power rails from a single inductor to minimize total solution size. Two 150mA 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). The fuel-gauge implements the Maxim ModelGauge™ m5 EZ algorithm with ultra-low power. The IC provides the best performance for batteries with 10mAhr to 1Ahr capacity.

This device includes three GPIOs and an analog multiplexer that selects between several internal voltages 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.

简化框图

MAX77658: Simplified Block Diagram MAX77658: Simplified Block Diagram Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

采样:
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后,所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站,请创建一个新帐户。有关此样片网站的任何问题,请联系SampleSupport@analog.com