LM5166EVM-C50A

Series:	--
Part Status:	Active
Main Purpose:	DC/DC, Step Down
Outputs and Type:	1, Non-Isolated
Voltage - Output:	5V
Current - Output:	500mA
Voltage - Input:	6 V ~ 65 V
Regulator Topology:	Buck
Frequency - Switching:	100kHz
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	LM5166

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The LM5166EVM-C50A evaluation module is an open saturated synchronous rectifier off-line buck converter. It provides a complete circuit to evaluate and adjust the performance of LM5166, a wide 5MHz DC-DC switching regulator with integrated high side and low side synchronous switches. This flexible evaluation module can be used to quickly evaluate the components and design features of the LM5166.The LM5166 is a very powerful switching regulator solution for applications such as distributed power systems, LED drivers, and industrial systems. It is designed for wide VIN and VOUT operation and has a wide 5 MHz switching frequency range. The current mode architecture of the device ensures excellent load and line regulation, cycle-by-cycle current limit, and programmable soft start.With an extremely efficient power conversion efficiency up to 98%, the LM5166EVM-C50A offers high-performance operation that is ideal for modern distributed power systems. The device also enables an adjustable power output up to 50 W, making it suitable for a wide range of applications. In addition, the device is adjustable from 0.4 V to 36 V, has a 2 A maximum output current and supports a wide input voltage range of 36 V to 72 V DC.The working principle behind the module is based on two N-channel FETs (Field-Effect Transistors) operating in a synchronous rectifier topology. The LM5166 utilizes an internal high side and low side FETs to efficiently regulate the voltage. The high side FET is the synchronous rectifier and the low side FET is the switch. The synchronous rectifier is responsible for rectifying the step-down voltage and the switch is responsible for delivering the rectified voltage to the load.By using the adjustable switching frequency, the amount of power delivered to the load can be adjusted. The switching frequency affects the power transfer by affecting the efficiency of the conversion process. At higher frequencies, greater voltage is transferred from the input to the output but lower frequencies result in better efficiency as there is more margin for the internal FETs to dissipate any heat generated during the switching process.The LM5166EVM-C50A open saturated synchronous rectifier off-line buck converter provides an excellent starting point for engineers looking to implement a reliable and efficient DC-DC power system. By utilizing the device’s wide 5MHz switching frequency range and adjustable power output range up to 50 W, engineers can quickly evaluate and optimize their designs using the LM5166EVM-C50A, enabling them to create more efficient, cost effective power systems.

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