Maxim’s nanoPower boost regulator claims industry’s longest battery life

Claiming the industry’s longest battery life and the smallest form factor for use in wearable and consumer IoT designs, the MAX17222, from Maxim features 300nA IQ and 95 per cent peak efficiency. It reduces solution size by up to 50 per cent, adds the company.

The MAX17222 nanoPower boost regulator from Maxim Integrated Products, has quiescent current (IQ) of only 300nA.  The 0.4 to 5.5V input, 1.8 to 5.0V output boost regulator has 500mA input current limit, and reduces solution size by up to 50 per cent compared to similar products, claims the company, and offers 95 per cent peak efficiency to minimise heat dissipation. The resulting benefits make the nanoPower boost regulator suitable for wearable devices.

Battery life is one of the main challenges faced by designers of new wearable, health-monitoring, IoT, mobile, and other connected devices, says Maxim Integrated, particularly as functionality and performance increase while form factors become smaller. Power solutions servicing this market require mastery of low quiescent current design techniques and high integration. Battery drain is significantly reduced during standby and shutdown modes to maximize operating time. The 0.4V input (with 0.88V start-up input) is compatible with low voltage batteries and supercapacitors, says Maxim.

Maxim’s MAX17222 not only delivers the lowest quiescent current, but also minimises heat dissipation and shutdown current. In True Shutdown mode, the current draw of a mere 0.5nA virtually stops battery drain to provide the longest battery life and eliminate the need for external disconnect switches. To reduce solution size, compared to other, similar products, the MAX17222 is internally compensated and requires only a single configuration resistor and small output filter, says Maxim. The boost regulator is offered in tiny, density-optimized 0.88 x 1.4mm six-bump WLP and 2.0 x 2.0mm six-pin standard µDFN packages. It operates over the -40 to +85-degree C temperature range.  

The MAX17222EVKIT# evaluation kit, and an EE-Sim model are available.

Visit Maxim Integrated Products at Embedded World 2017, Hall 1 – 370).


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