RW2-4805D/H3/SMD

DC-DC Converters are a versatile technology used in many different applications. The RW2-4805D/H3/SMD is a high-performance integrated circuit designed to accept input voltages ranging from 5 to 12Vdc and to convert them into regulated 5Vdc output with up to 1.5A of current. By utilizing advanced switching technology, the RW2-4805D/H3/SMD offers quiet operation, high efficiency, and a wide range of protection features to guard against over-temperature, overload, and short-circuit conditions.

The integration of a high-precision voltage reference ensures that the output is well regulated and maintains a tight tolerance despite input voltage and load variations. A current-limit circuit further helps to maintain safe and reliable operation by allowing the output current to rise linearly until it reaches its limit, at which point the output is shut down to prevent damage to the circuit.

The RW2-4805D/H3/SMD operates in pulse-width-modulated (PWM) mode, which involves the switching of the input voltage on and off to produce an average output voltage. This method has several advantages over other DC-DC conversion techniques, such as better regulation and higher efficiency. In an application, the PWM signal drives an external power transistor to control the amount of power delivered to the load. As the load on the circuit varies, the frequency of the PWM signal is adjusted accordingly to maintain the desired output voltage.

The integrated thermal protection circuit monitors the power dissipated in the power transistor and will shut down the unit if it exceeds the predetermined limit. This helps to ensure reliable performance and to prevent damage to the circuit caused by excessive temperatures. In addition, reverse-polarity protection prevents major damage in case of miswired connections.

The RW2-4805D/H3/SMD is an ideal choice for a wide variety of applications including board-level voltage regulation, power supply sequencing, automotive accessory power, distributed power, and UPS systems. Its wide input voltage range and protection features make it a reliable and robust solution for a variety of application needs.