10 Nov 2017

DC/DC modules with evaluation boards simplify power design

RS Components enables designers to save board space, bill of materials, and development time with the latest Würth Elektronik MagI3C highly-integrated DC/DC converter modules.

By integrating the switching regulator, control circuitry and inductor in the same package, the modules require minimal external components. Some models also integrate input and output capacitors and so require no additional components to power the load using factory-default settings. External resistors can be used to customise the switching frequency and start-up timing as required. Evaluation boards are also available for the modules, which help to quickly choose the right model for the desired load.

The MagI3C family includes the LDHM high-current LED-driver module. Designed to operate from a 12V, 24V or 48V supply, it can generate an output voltage from 4.5V to 60V and supply 450mA for up to 16 LEDs in series, with PWM dimming. Support for parallel connection allows higher-current applications. The driver is housed in a TO-263 7EP 7-lead surface-mount package, thermally enhanced with a single exposed pad, and is compatible with both ceramic and low-ESR capacitors.

Also in the MagI3C family is the VDRM series of variable-output step-down modules in surface-mount TO-263 7EP or BQFN leadless packages. The modules offer high efficiency and a wide input-voltage range for operation from common rail voltages such as 9V, 12V, 28V or 48V. Output voltage ranges are 0.8V-6V, 2.5V-15V, and 5V-24V, for powering logic, IC core, and analogue circuitry, with maximum current ranging from 1A to 5A.

In addition, FDSM fixed-output variants are packaged as 3-pin or 7-pin SIP modules, and capable of sourcing 200mA, 500mA or 1A at 3.3V or 5V. Designed for high efficiency, with pulse skipping at light loads, they can operate heatsink-free in many circuits. Comprehensive protection including output over-voltage, short-circuit, and thermal shutdown is also built-in.

MagI3C modules are suitable for a wide variety of applications, including on-board point-of-load converters, powering I/O interfaces, test & measurement instruments, general industrial equipment, medical electronics, and for replacing linear regulators.

The MagI3C modules are available now from RS in the EMEA and Asia Pacific regions.

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