Boost converters and LDO have industry’s IQ says Maxim

For use in consumer, industrial, healthcare and IoT devices, the MAX17227A and MAX17291 boost converters and the MAX38911 LDO shrink the size of battery-operated devices and extend battery life for efficient power, says Maxim Integrated.

The MAX17227A 2A nanoPower boost converter, the MAX17291 high voltage, 1A boost converter and the MAX38911 500mA LDO are claimed to provide the lowest quiescent current.

The MAX17227A handles up to 2.0A switch current, which is claimed to be twice that of the closest competitive device and it consumes half the quiescent current (IQ), at just 350nA, continues Maxim. This nanoPower boost converter features short-circuit protection, true shutdown and an input voltage range from 400mV to 5.5V, and it can extend battery system life up to 10 per cent.

The MAX17291 delivers up to 20V, with a quiescent current that is 80 per cent lower and a size that is 60 per cent smaller than the closest competition alternative, according to Maxim. Delivering up to 10X voltage conversion, the MAX17291 boost converter fits battery-operated systems with higher output voltage loads such as industrial energy hold-up, displays or sensors, Maxim advises.

Up to 50 per cent smaller than competitive solutions, the MAX38911 is a 500mA LDO for battery-operated IoT systems. It draws only 19 microA during idle mode to extend battery life up to 10 per cent. It also has the industry’s best power supply rejection ratio (PSRR) at a level 16dB better than the closest competitor, says Maxim, to help prevent noisy power supplies from interfering with critical functions such as precise measurements and communications.

The MAX17227A, the MAX17291 and the MAX38911 is available now. There are also evaluation kits for each, the MAX17227AEVKIT#, the MAX17291EVKIT# and the MAX389111EVKIT# are available now. EE-Sim models are available for the MAX17227A and MAX17291.

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