RM-153.3S/HP

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DC DC converters are widely used in many areas such as renewable energy, automotive, industrial process control, consumer electronics and military applications. The RM-153.3S/HP is one kind of DC DC converters that offer good performance and are designed and constructed for a wide range of applications. This paper aims to analyze the application field and working principle of RM-153.3S/HP.

First and foremost, the RM-153.3S/HP is suitable for various applications such as laptops, wireless basestations, routers, gaming consoles, cellular phones, personal computers, and computer motherboards. It features low profile, wide operating temperature range(-40 ℃ to 85℃) and high conversion efficiency up to 95%. Also, the component can operate in ambient environments with humidity up to 95% at 40°C.

Moreover, the RM-153.3S/HP’s input voltage range is 4.2V to 18V DC and the output voltage range is 0.2V to 5.5V DC. The constant current capability of this component is up to 1A, and the switching frequency is 200KHz. It also offers an internal soft start and a power good signal with hysteresis that gives stable user feedback. Furthermore, this component features low EMI and full circuit protection with short-circuit protection, over-current protection, and over-voltage protection.

The RM-153.3S/HP adopts a synchronous buck topology. The diagram of working principle is as follows. The unit has two power switches, Switch 1 and Switch 2. The input voltage is connected to the diode bridge, current-sensing resistors and input filter capacitor by the power switches. The input voltage, which is converted into a low-voltage, high-current pulses, is again applied to the secondary rectifying diode bridge through the inductor. Finally, the low-voltage, high-current pulses are converted into a stable output voltage and current through an output filter capacitor.

To sum up, RM-153.3S/HP is a DC to DC synchronous buck converter with high efficiency, low profile component, wide operating temperature range and low EMI features, which is suitable for a wide range of applications. Also, the working principle of this component is determined by its synchronous buck topology structure.

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