VI-263-CX

Current - Output (Max):	3.13A
Size / Dimension:	4.60" L x 2.40" W x 0.50" H (116.8mm x 61.0mm x 12.7mm)
Package / Case:	Full Brick
Mounting Type:	Through Hole
Efficiency:	90%
Operating Temperature:	-25°C ~ 85°C
Features:	OCP, OTP, OVP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	75W
Series:	VI-200™
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	24V
Voltage - Input (Max):	400V
Voltage - Input (Min):	200V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Bulk

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Introduction

DC-DC converters are an important class of power electronic devices used to convert direct current (DC) power from one voltage level to another. Among them, the VI-263-CX is a high-efficiency transformer-less DC-DC converter commonly used in consumer electronics and other low-voltage power applications. It is capable of converting up to 5W of power between 5V and 12V.

Application Field

The VI-263-CX is particularly suited for battery-powered applications where a small footprint, low weight and high efficiency are important factors, such as 3G/4G router, wireless access points, control devices, etc. It can also be used for point-of-load (POL) DC-DC applications, such as desktop computers, servers, and household appliances.

Working Principle

The VI-263-CX operates by converting the input voltage to an intermediate voltage (the output voltage) by Pulse Width Modulation (PWM) of the primary transformer windings. The output voltage is then rectified and further regulated by an external control loop using an internal error amplifier. Its high-efficiency operation is achieved by its switched-mode design, which reduces the amount of power dissipated in the form of heat.

Conclusion

The VI-263-CX high-efficiency DC-DC converter has many benefits and is a reliable and cost-effective solution for a wide range of low-voltage applications. Its transformer-less design allows for a smaller form factor, low weight, and high efficiency, making it ideal for battery-powered devices. Its pulse width modulation operation and external control loop regulation mean that it is capable of conversion of up to 5W power from 5V to 12V, and is suitable for point-of-load applications.

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