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MAX17222 500 mA nanoPower Boost Converter

By Maxim Integrated 113

MAX17222 500 mA nanoPower Boost Converter

Maxim Integrated's MAX17222 is an ultra-low quiescent current boost (step-up) DC-DC converter with a 500 mA peak inductor current limit and True Shutdown™. True Shutdown disconnects the output from the input with no forward or reverse current. The output voltage is selectable using a single standard 1% resistor. The MAX17222ELT+ has post-startup enable transient protection (ETP), allowing the output to remain regulated for input voltages down to 400 mV, depending on load current. The MAX17222ELT+ offers ultra-low quiescent current in a small total solution size and high efficiency throughout the entire load range. The MAX17222ELT+ is ideal for battery applications where long battery life is a must.

Features
  • 300 nA quiescent supply current into OUT
  • True Shutdown mode
    • 0.5 nA shutdown current
    • Output disconnects from input
    • No reverse current with VOUT 0 V to 5 V
  • 95% peak efficiency
  • 400 mV to 5.5 V input range
  • 0.88 V minimum startup voltage
  • 1.8 V to 5 V output voltage range
    • 100 mV / step
    • Single 1% resistor selectable output
  • 500 mA peak inductor current limit
  • Enable transient protection (ETP)
  • 0.88 mm x 1.4 mm 6-bump WLP (2 x 3, 0.4 mm pitch)
Applications
  • Optical heart-rate monitoring (OHRM) LED drivers
  • Supercapacitor backup for RTC / alarm buzzers
  • Primary-cell portable systems
  • Tiny, low-power IoT sensors
  • Secondary-cell portable systems
  • Wearable devices
  • Battery-powered medical equipment
  • Low-power wireless communication products

White Paper:  nanoPower—Why Low Quiescent Current Matters for Longer Battery Life
Article: Webinar: Learn Why it's Smart to have a Low IQ

New Products:

MAX17222ELT+TMAX17222EVKIT#

Tags:

Power ManagementSemiconductors & Dev ToolsMaxim Integrated

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