REC3-1212DRW/H/B/M/SMD-R

Current - Output (Max):	125mA, 125mA
Size / Dimension:	1.26" L x 0.78" W x 0.44" H (32.0mm x 19.9mm x 11.2mm)
Package / Case:	24-SMD Module, 18 Leads
Mounting Type:	Surface Mount
Efficiency:	85%
Operating Temperature:	-40°C ~ 85°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.6kV
Power (Watts):	3W
Series:	ECONOLINE REC3-DRW
Voltage - Output 3:	--
Voltage - Output 2:	-12V
Voltage - Output 1:	12V
Voltage - Input (Max):	18V
Voltage - Input (Min):	9V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Active
Packaging:	Tape & Reel (TR)

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DC DC Converters

DC to DC converters are devices used to convert a fixed voltage, either direct current (DC) or alternating current (AC), to a different, adjustable voltage output. The application field and working principle of REC3-1212DRW/H/B/M/SMD-R are discussed in this article.

Application Field:

The REC3-1212DRW/H/B/M/SMD-R is a DC-DC converter designed for a wide range of applications. It is a two watt external DC-DC converter with a wide input voltage range of 4.5V to 12V and a selectable 1.8V, 2.5V, 3.3V, 4.2V or 5V output voltage and a max output current of 1.2A. It has a low-startup voltage of 1V. It is designed with a heavy-duty cooling fan for improved thermal performance and has a 92% typical efficiency rating.

Working Principle:

The REC3-1212DRW/H/B/M/SMD-R works as a switching power converter. Its input is connected to the input voltage source which is typically a battery pack. A rectifier and filter circuit rectifies the source voltage to DC. A buck converter is then used to reduce the voltage to the desired output voltage. This is done by switching the MOSFET between ON and OFF states, and controlling the duty cycle of the converter with an internal oscillator. The output voltage is fed to the load through the output terminals of the converter. The converter also includes over-voltage protection, over-current protection, and thermal protection.

Conclusion:

The REC3-1212DRW/H/B/M/SMD-R is a two watt external DC-DC converter that can deliver an output voltage of up to 5V and a current of up to 1.2A. It is designed with a heavy-duty cooling fan to keep the converter running at peak efficiency and has a low startup voltage of 1V. The converter also has over-voltage, over-current, and thermal protection to keep the converter running safely and reliably.

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