REC5-1205SRW/H2/C/SMD

DC DC Converters

DC DC converters are small, high efficiency devices that convert a DC input voltage into a different, usually lower DC output voltage. REC5-1205SRW/H2/C/SMD is a type of DC/DC converter, and this article will discuss its application field and working principle.

Application Field

REC5-1205SRW/H2/C/SMD is mostly used in the fields of consumer electronics, industrial automation, automotive and medical electronics. Specifically, it is used in applications such as portable electronic devices, communications equipment, automotive electronics, and other power-saving products. It can provide a 5V output with a 12V input, while its no-load output and standby consumption are ultra-low, making it ideal for portable and power-saving products.

Working Principle

The REC5-1205SRW/H2/C/SMD DC/DC converter relies on a voltage-fed forward converter switching topology to operate. This topology includes two main stages, a power-conversion stage and a control-regulator stage. The power-conversion stage includes a switching circuit, a power switch, an inductor, a diode, an output capacitor, and an optional EMI filter. The primary device in this stage is the power switch, which is controlled by the control-regulator stage. The control-regulator stage is designed to control the power switch and to ensure that the output voltage follows the required setpoint. It includes a voltage-mode PWM controller, a cycle-by-cycle current limiter, and negative voltage feedforward (NVF) circuitry. This stage also provides two external resistor pins to set the desired output voltage. As long as the output voltage is maintained within an acceptable range, the converter will be kept in steady-state operation.

Conclusion

In conclusion, the REC5-1205SRW/H2/C/SMD DC/DC converter is designed to convert a 12V input voltage into a 5V output voltage. It is mostly used in consumer electronics, industrial automation, automotive and medical electronics applications. It consists of two main stages - a power-conversion stage and a control-regulator stage - which ensure that the output voltage remains within an acceptable range. The REC5-1205SRW/H2/C/SMD is a very efficient and reliable converter, making it an excellent choice for applications requiring a stable and long-lasting power source.