Analog Devices / Maxim Integrated MAX17227A Switching Voltage Regulator

Analog Devices Inc. MAX17227A Switching Voltage Regulator is a 2A nanoPower boost converter with short-circuit protection and true shutdown. This switching regulator delivers load up to 2A peak inductor current and offers cycle-by-cycle inductor current limit and thermal protection. The MAX17227A regulator offers ultra-low quiescent current, small total solution size, and high efficiency throughout the load and line range. This switching regulator disconnects the output from the input with no forward or reverse-current which saves energy for the battery. The MAX17227A device operates across 0.4V to 5.5V wide input voltage range.

Analog Devices MAX17227A switching regulator operates from -40°C to 125°C temperature range. This voltage regulator is offered in a space-saving 1.58mm x 0.89mm, 6-bump WLP (3 x 2, 0.4mm pitch) and 8-pin, 2mm x 2mm TDFN packages. The MAX17227A regulator is ideal for battery-powered applications where long battery life is a must and high efficiency is required at all power levels. Applications include WiFi module, near-band IoT, wearable audio, emergency lighting, IoT sensors, and clinical instrumentation.

Features

  • 350nA quiescent supply current from output
  • Output short-circuit protection
  • True shutdown mode:
    • 1nA shutdown current
    • Output disconnects from input
    • No reverse-current with any voltage on VOUT
  • 96% peak efficiency, 90% or higher @500μA
  • 850mA (typical) output current at 5V (VIN = 3V)
  • 400mV to 5.5V input voltage range, up to 5.35V in regulation
  • 880mV minimum startup voltage
  • Single resistor adjustable output voltage:
    • 2.3V to 5.2V output voltage range with 100mV steps
    • 5.4V and 5.5V output voltage settings available
  • 2A peak inductor current limit
  • Thermal shutdown protection
  • Multiple package options:
    • 1.58mm x 0.89mm, 0.4mm pitch, and 6-bump (3 x 2) WLP
    • 2mm x 2mm 8-pin TDFN
  • -40°C to 125°C operating temperature range

Applications

  • Consumer:
    • WiFi module
    • Near-band IoT
    • Wearable audio
  • Industrial:
    • Emergency lighting
    • IoT sensors
  • Medical:
    • Clinical instrumentation

Functional Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX17227A Switching Voltage Regulator

Operating Circuit

Analog Devices / Maxim Integrated MAX17227A Switching Voltage Regulator

Analog Devices / Maxim Integrated MAX17227A Switching Voltage Regulator