MAXREFDES111A#

Series:	--
Part Status:	Active
Main Purpose:	DC/DC Converter
Outputs and Type:	1, Isolated
Power - Output:	2W
Voltage - Output:	5V
Current - Output:	400mA
Voltage - Input:	18 V ~ 36 V
Regulator Topology:	Flyback
Frequency - Switching:	500kHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	MAX17498B

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MAXREFDES111A# Application Field and Working Principle

MAXREFDES111A#, developed by Maxim Integrated, is an evaluation board designed to demonstrate the features of a switching mode power supply. This board utilizes a DC-DC buck (step-down) switching regulator to provide an adjustable output voltage and current. The board provides a flexible solution for powering a wide range of applications, from low-power to high-power systems. The board comes with a wide input voltage range of 8V to 5V, making it suitable for both AC- and DC-based power supplies.The MAXREFDES111A# switching regulator consists of a controller, driver, and power switch. The controller is responsible for regulating the output voltage and current by controlling the duty cycle input to the driver. The driver then passes the commanded duty cycle on to the power switch which, in turn, turns on and off the switch at the appropriate times based on the duty cycle applied to it.This arrangement allows the output voltage and current to be regulated independently by adjusting the duty cycle input to the driver. The output voltage is determined by the on-time of the power switch and the input voltage. The output current is determined by the off-time of the power switch, the input voltage, and the load presented to the output. In general, the higher the output voltage, the lower the output current.The MAXREFDES111A# evaluation board comes with a programmable potentiometer that allows the user to adjust the output voltage from 0.8V to 5V. The board also incorporates a switch mode current limiter for protection against overcurrent conditions. The board\'s current limit is set to 1A and can be adjusted up to 5A.MAXREFDES111A# evaluation board is ideal for a wide range of DC/DC and AC/DC switching mode power supply applications, such as systems that require an adjustable output voltage and/or current, or those with limited space and/or power requirements. The board is an excellent choice for prototyping, development, and evaluation of switching mode power supplies. It provides an inexpensive solution for testing and debugging designs prior to production.In summary, the MAXREFDES111A# provides a complete evaluation and development platform for DC/DC and AC/DC switching mode power supplies. Its adjustable output voltage and current range provides maximum flexibility for a wide range of applications. The programmable potentiometer and switch mode current limit make it easy to use and reliable for a variety of power supply needs.

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