SFS20483R3B

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DC DC converters can be used in many applications. This article covers the application field and working principle of the SFS20483R3B DC DC converter.The SFS20483R3B DC DC converter is an isolated DC DC converter designed to provide high power efficiency and a wide range of output voltage options. This converter is ideal for applications where power efficiency, ultra-low output ripple, and low noise are important. It is also suitable for use in applications where space or size limitations are a problem.The SFS20483R3B features a wide 4:1 input voltage range, allowing it to be used from 18 VDC to 48 VDC, making it ideal for use in 12V, 24V, 28V, and 48V applications. It also features a single input control pin which reduces the complexity of wiring and makes it suitable for power systems with limited space or cost constraints.The SFS20483R3B also features an efficient ACTIPM power factor correction (PFC) which enables the converter to meet the strictest energy efficiency standards. This ACTIPM PFC has a low EMI and is designed to meet the requirements of EMC (Electromagnetic Compatibility) directives.The SFS20483R3B is a synchronous PWM-regulated non-isolated DC DC converter, and has an adjustable output voltage from 1.2 VDC to 5.5 VDC with a 0.25 VDC resolution. It is compatible with surface-mount and through-hole components, making it ideal for surface-mount or through-hole system designs. It also features overcurrent protection, overvoltage protection, overtemperature protection and reverse-connection protection.The SFS20483R3B is capable of achieving an efficiency of up to 95%, making it the most efficient DC DC converter in the market. It also features a low no-load power draw, with a typical no-load current of 0.5mA.The SFS20483R3B is commonly used in high-power applications such as 12V power systems and micro-inverters. It is also suitable for use in automotive, industrial, telecom, medical, and computer applications.The working principle of the SFS20483R3B is quite simple. The input voltage is rectified and filtered to generate voltage suitable for the internal circuitry. The input voltage is then scaled down with a DC-DC buck or boost converter to generate the desired output voltage at the output. This process is synchronous, meaning that the output voltage is regulated depending on the input voltage. This makes the SFS20483R3B ideal for applications where steady, stable output voltage is required.To ensure high power efficiency, the SFS20483R3B is capable of providing a wide range of operating frequencies, including 50 Hz to 400Hz. Additionally, its Active Power Factor Correction (PFC) allows for the output voltage to be accurately regulated to within the rated accuracy of + 0.3%.In conclusion, the SFS20483R3B is a complex, highly efficient DC DC converter designed to provide high power efficiency, low output ripple, and low noise. Its wide input voltage range, efficient PFC, and adjustable output voltage make it suitable for use in a wide range of applications, from automotive, industrial, telecom, medical, and computer applications.

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