Voltage - Output 3:	--
Control Features:	--
Size / Dimension:	0.77" L x 0.24" W x 0.40" H (19.7mm x 6.2mm x 10.2mm)
Package / Case:	7-SIP Module, 4 Leads
Mounting Type:	Through Hole
Efficiency:	69%
Operating Temperature:	-40°C ~ 85°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	1W
Current - Output (Max):	303mA
Series:	MEF1
Voltage - Output 2:	--
Voltage - Output 1:	3.3V
Voltage - Input (Max):	12.6V
Voltage - Input (Min):	11.4V
Number of Outputs:	1
Type:	Isolated Module
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Introduction

DC DC converters are electronic devices that convert direct current (DC) to different output voltages and frequencies. MEF1S1203SP3C is a hybrid DC-DC converter used to efficiently convert main power voltage to a desired output voltage. It is used mainly in applications where the input and/or output voltage is regulated.

Application Fields of MEF1S1203SP3C

The MEF1S1203SP3C is a highly efficient and reliable DC-DC converter used in a variety of applications in industry, laboratories, residential and commercial facilities. Some of the common applications of MEF1S1203SP3C are:

• Lighting control systems in automotive, commercial and residential premises
• Industrial and laboratory power supply systems
• Telecommunications base stations and networks
• Aircraft flight data recorders
• Computer and automotive power conversion
• UPS systems
• Battery charging systems
• Solar power systems

Working Principle of MEF1S1203SP3C

The MEF1S1203SP3C is a synchronous buck-boost converter with an input voltage range of 26 to 110V DC. It provides an output voltage of 12V and a maximum output current of 3A. The MEF1S1203SP3C operates as a buck converter in the lower input range and as a boost converter in the higher input range. This ensures that the output voltage remains constant regardless of the input voltage.The MEF1S1203SP3C employs synchronous rectification technology to reduce power losses and improve efficiency. This technology enables the two output power MOSFETS (metal-oxide semiconductor field-effect transistors) to switch in both positive and negative directions, allowing for higher switching speeds and higher power density. The synchronous rectification technology also helps to reduce the output voltage ripple and eliminates the need for an output inductor, resulting in a simpler DC-DC converter.The MEF1S1203SP3C uses voltage mode control, allowing it to quickly respond to dynamic load changes and provide excellent transient performance. The converter also features an adjustable soft start capacitors, which enables the system to start under heavy load without any noticeable output voltage overshoot.

Conclusion

The MEF1S1203SP3C is an efficient and reliable DC-DC converter that is designed for a wide range of applications. It features synchronous rectification technology to reduce power losses and improve efficiency and can handle an input voltage range of 26 to 110V DC, providing an output voltage of 12V. The adaptive voltage mode control feature ensures the system starts smoothly and responds quickly to dynamic load changes.

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