VWRBS2-D5-S3.3-SIP

Current - Output (Max):	500mA
Size / Dimension:	0.87" L x 0.37" W x 0.47" H (22.0mm x 9.5mm x 12.0mm)
Package / Case:	8-SIP Module, 7 Leads
Mounting Type:	Through Hole
Efficiency:	65%
Operating Temperature:	-40°C ~ 85°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	2W
Series:	VWRBS2-SIP
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	3.3V
Voltage - Input (Max):	9V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Tube

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DC DC Converters

DC/DC converters are electronic devices that are used to convert a direct current (DC) voltage into a lower DC voltage that is suitable for direct use in a variety of commercial and industrial applications. The VWRBS2-D5-S3.3-SIP is one such converter, designed to efficiently provide 3.3V from a 5V source while still offering superior performance and reliability. In this article, we will discuss the application fields and working principle of this particular model of DC/DC converter.

Application Fields

The VWRBS2-D5-S3.3-SIP is suited for a wide range of applications. These include providing 3.3V to microcontrollers and other logic ICs, supplying power to battery-powered devices, and powering LEDs. It is also suitable for providing 3.3V in virtually any application requiring a 5V DC input.

Working Principle

The VWRBS2-D5-S3.3-SIP uses a step-down (buck) switching topology to convert 5V DC to 3.3V DC. The design consists of a voltage regulator, a synchronous rectifying switch, a control circuit, and an output filter.The voltage regulator serves to regulate the output voltage of the converter over its rated load range. This is done by adjusting the duty cycle of the switch based on the voltage feedback from the output. When the voltage falls below the designed regulation limit, the controller increases the duty cycle of the switch, resulting in an increase in the output voltage. Similarly, when the voltage rises above the regulation limit, the duty cycle is reduced, resulting in a decrease in the output voltage.The synchronous rectifying switch controls the current flow from the input to the output of the converter. When the switch is activated, current flows from the input to the output. When the switch is turned off, the current flow is interrupted and the output voltage is held at its previous level.The control circuit is responsible for controlling the timing of the synchronous rectifying switch. The duty cycle of the switch is determined based on the voltage feedback from the output and is adjusted by the controller accordingly.Finally, the output filter serves to reduce noise and ripple on the output voltage. It is usually made from ceramic capacitors, which filter out high-frequency noise from the output voltage.

Conclusion

In conclusion, the VWRBS2-D5-S3.3-SIP is a reliable and efficient DC/DC converter suitable for a variety of applications, from powering microcontrollers to supplying power to LED lighting. The design consists of a voltage regulator, synchronous rectifying switch, control circuit, and output filter, all of which work together to provide a clean and constant output voltage.

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