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Tiny, 0.4V to 5.5V Input, 300nA IQ, nanoPower Boost Module with True Shutdown

NanoPower Boost Module with Industry’s Lowest IQ Extends Battery Life for Always-On Devices

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主要特征

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主要特征

  • Extends Battery Life
    • 300nA Ultra-Low Quiescent Current
    • 0.5nA Shutdown Current
    • 95% Peak Efficiency
    • True Shutdown
      • Output Disconnects from Input
      • Zero Forward/Reverse Current from VIN,VOUT
  • Easy to use–Addresses Popular Operation
  • VIN: 5.5V Down to 0.4V
    • Minimum Startup Voltage of 0.88V
    • Single Resistor-Adjustable VOUT from 1.8V to 5V
    • VOUT Selection Resolution: In 100mV Steps
    • 1A Peak Inductor Current Limit
    Robust Performance Features Include
    • Internal Current Limit
    • Integrated Soft-Start
    • PFM Control Scheme for Higher Efficiency at Light Load Operation
  • Reduced Size and Increased Reliability
    • 2.1mm x 2.6mm, 10-Lead eMGA Package
    • Operating Temperature Range -40°C to +125°C

应用/用途

  • Bluetooth® LE Devices
  • Health Monitoring and Fitness Devices
  • Portable Point-Of-Sale (POS) Terminals
  • Single or Dual Cell Alkaline Battery Products
  • Supercapacitor Backup for RTC/Alarm Buzzers
  • Ultra-Low-Power IoT Modules
  • USB On-The-Go Adapter Modules, USB Charging
  • Wearables

描述

The MAXM17225 is a nanoPower, ultra-low-IQ (300nA) boost module offered in a tiny eMGA package. The IC is guaranteed to startup with voltages as low as 0.88V and post startup, the input voltage VIN can go down to 0.4V making it ideal for battery-operated devices that undergo voltage discharge over time. Its ultra-low quiescent current of 300nA prolongs battery life and extends product lifetime as well. The IC accepts input voltage from 0.4V to 5.5V and boosts it up to programmable output voltages from 1.8V to 5V. The output voltage is set using a single external resistor (RSEL). The product has a maximum efficiency of 95%. The module is well suited for a host of applications like battery-operated devices, portable electronics where step-up conversion is needed in space constrained enclosures while demanding high efficiency. A true shutdown disconnects the input from the output, conserving battery life. The IC has an integrated 1μH inductor chosen for optimized operation, stability, and efficiency. Guaranteed Boost VOUT regulation for 250mV separation between input and output voltages while driving heavy loads. A single external selectable resistor (RSEL) for VOUT setting reduces quiescent current consumption in comparison with a conventional resistor feedback divider string. The MAXM17225 has a fixed maximum 300ns switch turn-on time and peak inductor current limit of 1A. The IC auto-transitions between the ULPM, LPM, and HP operating modes based on load current, enabling better system transient response and efficiency. All these powerful features are packed in a tiny 10-lead eMGA package offering the end designer an efficient tool to design products.

简化框图

MAXM17225: Simplified Application Diagram MAXM17225: Simplified Application 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