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Nisshinbo ELECTRONICS RM590 Step-Down DC/DC Module | Featured Product Spotlight

March 22, 2022 by Mouser Electronics

This Featured Product Spotlight is part of a video series exploring the specifications, applications, and market context of new products.


Nisshinbo ELECTRONICS RM590 Step-Down DC/DC Module

Nisshinbo Electronic Devices Company RM590 Step-Down DC/DC Modules are synchronous, step-down DC-to-DC converters that are designed for use in wearable devices, applications for Internet of Things, and wireless communications modules requiring a low level of current consumption to extend battery life.

Delivering up to 400 milliamps of output current, the RM590 can be configured for either pulse width modulation and pulse frequency modulation in automatic shift operation or forced PWM operation by controlling the MODE pin.

The RM590 has an input voltage range from 2.3V to 5.5V and offers fixed output voltages from 0.6V to 3.3V in 0.1V increments or adjustable output voltages from 0.6V to 5.5V.

Multiple protection circuits are integrated, including an Undervoltage Lock-Out circuit, which disables the DC/DC Converter in case the input voltage drops below a minimum threshold. A soft-start circuit controls the output voltage to ramp-up smoothly and prevents any output overshoot and undershoot during the start-up period. 

The Nisshinbo RM590 has a built-in inductor to simplify the board design and is available in a 2.2mm by 2.0mm by 1.5mm size in a  QFN2220-8 package for high-density mounting. Therefore, it is possible to save space in the mounting area.

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