Boost converter helps extend battery life in highly integrated wearables and other connected designs

Mouser is now stocking the MAX17222 nanoPower DC-DC step-up (boost) converter from Maxim Integrated. The device offers a high 95% efficiency that minimizes heat dissipation plus an ultra-low quiescent current that helps extend battery life in highly integrated wearables, health monitors, IoT devices, and other connected designs. The company’s DC-DC boost converter operates over an input voltage range of 0.4V to 5.5V, delivering an output voltage range of 1.8V to 5V with an ultra-low quiescent current down to 300nA. The device features True Shutdown mode, which boasts a current draw of just 0.5nA to virtually stop battery drain, providing long battery life and eliminating the need for external disconnect switches. The converter’s 500mA peak inductor current limit gives designers greater flexibility when selecting inductor types, while the post-startup enable transient protection (ETP) allows the output to remain regulated for input voltages down to 400mV, depending on load current. The company is also stocking the Maxim MAX17222 evaluation kit, which features two independent circuits to evaluate both the MAX17222 and MAX17225 converters. Each circuit provides resistor-configurable output voltages from 1.8V to 5V in 100mV per step. Additionally, each circuit output delivers up to 100mA, 225mA, or 425mA, depending on the input-to-output voltage ratio.