MAX17222 500 mA nanoPower Boost Converter

Analog Devices' 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

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