RP90Q-4812SRW/P

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DC DC converters are electrical circuits or devices used to transform one DC voltage to another. Generally, the input voltage is stepped up or down by using a transformer, thus regulating the supply voltage. The RP90Q-4812SRW/P is a typical DC DC converter designed to increase or decrease the input voltage in order to match the output voltage requirements.The RP90Q-4812SRW/P is a fully encapsulated, single-chip, low-power DC DC converter. It is a high-performance step-up or step-down converter that can provide efficient regulation in the narrow input voltage and wide output voltage range of 1.2 V to 11 V. The wide input range of 1.2 V to 18 V enables the device to operate from both AC/DC adapters, Li-ion batteries, and other power sources, making it ideal for battery-powered applications. Its low quiescent current and low noise makes it an excellent choice for portable and handheld applications requiring minimum power consumption.The RP90Q-4812SRW/P works on a converter topology known as Pulse Frequency Modulation (PFM). PFM is a practical approach to efficiently control the output voltage of a DC/DC converter. The controller monitors the output voltage with a built-in feedback loop. As the voltage level drops below the set point, the greater the feedback current. This initiates an internal pulse signal, which energizes the power MOSFET(s). This action increases the duty cycle of the output, bringing the output voltage back up to the set point.The RP90Q-4812SRW/P features an internal soft start, which helps to prevent inrush current. It also comes with a programmable over-current protection feature that will shut down the device in case of any short-circuit. OCP can be used to protect the load from any potential damage, like a short-circuit. The device is also equipped with an under-voltage lockout (UVLO) circuit and a temperature protection feature, which helps to prevent any operation outside its rated range.In conclusion, the RP90Q-4812SRW/P is a highly effective and reliable DC/DC converter suitable for a variety of applications in consumer electronics, telecom, automotive, industrial, medical and more. The wide input voltage range makes it ideal for battery-operated applications. Its low quiescent current and low noise are beneficial for portable and handheld applications requiring minimum power consumption. The device features an internal soft start, as well as over-current, under-voltage lockout, and temperature protection features. All these features combine to offer an excellent solution for a variety of DC DC conversion applications.

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