RPMD40-4812DG

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The RPMD40-4812DG is type of DC-DC Converters. It is a fully regulated synchronous step-down switching converter specifically designed to provide reliable and stable power in an array of applications.

This device features a wide input voltage range of 4 to 40 Volts and a typical efficiency up to 97%. It has a high switching frequency of 350kHz and a low output ripple that allows operation with low output capacitance. The output voltage is adjustable from 0.9V to 1.2V, with external resistor settable for other output voltages.

One of the most popular applications for the RPMD40-4812DG is outdoor LED lighting. In this type of application, LED outputs need to be accurately regulated, and the device delivers low output ripple and high efficiency with a simple solution requiring few external components. Additionally, they are suitable for telecom, medical device, industrial, automotive, home appliance, consumer electronics, and others.

The workflow of the device is composed of integrated functions including a PowerFail input, voltage feedforward, totem-pole gate driver, output voltage soft-start, digital remote sensing, manual power-good, and over-temperature shutdown. When the PowerFail pin is LOW, it will interrupt power delivery to the load, and the device will default to shutdown mode. Voltage feedforward adds greater accuracy and stability against transients, especially during start-up. Also, the totem-pole gate driver ensures MOSFETs can switch efficiently, and eliminates the need of external bootstrap capacitors.

To sum up, the RPMD40-4812DG is a versatile and efficient device, suitable for applications with regulated voltage input and predictable output. Its efficient design and wide voltage input range make it a viable solution for many power supply designs.

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