VWRBT1-D12-S3.3-SMT-TR

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DC DC Converters

DC-DC converters, also referred to as DC-DC power supplies, are electronic circuits used to convert a direct current (DC) input voltage into a regulated lower or higher DC output voltage. DC-DC converters are widely used to adjust the input of the device to the optimal voltage of the device so that the device can work efficiently and accurately. The application of DC-DC converters can be found in a wide variety of fields, such as communications, computing, and automotive.

The VWRBT1-D12-S3.3-SMT-TR is a DC-DC converter commonly used for powering small devices that require fixed 3.3V. It is a step down (Buck) converter that can be used to reduce a single positive input voltage, ranging from 5V to 20V, to a regulated output voltage of 3.3V. This converter operates with high efficiency due to its synchronous rectification technology and it has a wide temperature range of -40 to +85°C.

The VWRBT1-D12-S3.3-SMT-TR is designed with a feedback circuit, which is an oscillator and regulating loop that can monitor the output voltage and adjust it accordingly. The circuit is designed to keep the output voltage at a constant 3.3V with varying loads and input voltages. This converter also has a shutdown pin that can be used to turn the converter off and minimize power usage.

The core component of the VWRBT1-D12-S3.3-SMT-TR is a power MOSFET that can switch the input voltage on and off. This is done with Pulse Width Modulation (PWM), where the time the MOSFET is on and off depends on the duty cycle of the PWM signal, which is determined by the feedback circuit. The average output voltage is then determined by the ratio of on/off cycles. When the voltage is higher than the desired output voltage, the pulse width of the signal decreases, resulting in the average output voltage will decrease. Vice versa, when the voltage is lower than the desired output voltage, the pulse width of the signal increases, resulting in an increase in the average output voltage. This is how the feedback circuit keeps the output voltage at a constant 3.3V.

DC-DC converters are essential in any device or circuit that requires direct current with low to high output voltages. The VWRBT1-D12-S3.3-SMT-TR DC-DC converter is a very efficient and reliable step-down converter designed for powering devices that require 3.3V. This converter is capable of regulating the output voltage with wide input voltages, while operating with high efficiency. It is ideal for powering small devices with fixed output voltages from 5V to 20V.

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