REC3-0509SRW/H4/A/SMD/CTRL

DC-DC converters are used to convert DC power from one level to another. The REC3-0509SRW/H4/A/SMD/CTRL, for example, is a DC-DC converter designed to step down a 5V DC input to a regulated 3.3V DC output. This converter is typically used in applications where a precise 3.3V output is required to power sensitive electronics, such as digital logic circuitry.

The REC3-0509SRW/H4/A/SMD/CTRL uses switching technology to achieve its voltage conversions. Within its small package, this converter contains a power MOSFET, a power diode, an inductor, and a ramp generator. When input DC voltage is applied to the device, the ramp generator starts cycling and that in turn switches the MOSFET on and off. This creates a waveform on the output side which oscillates at a fixed frequency. The inductor absorbs the input energy during the ‘on’ period, and releases it on the output side during the ‘off’ period; but as the inductor stores and releases energy, the waveform is distorted due to voltage drops between input and output. To maintain the output voltage during this switching period, an internal regulator ‘shapes’ the desired output voltage. This level of regulation provides the device with a wide input voltage range and a fast transient response.

The REC3-0509SRW/H4/A/SMD/CTRL has a wide operating temperature range (-40 to +85°C) and is housed in a small, 4 pin SMD package. The device is designed to operate in a low EMI environment, making it ideal for applications where noise sensitive components are used. The converter is also able to deliver up to 500mA of output current.

In summary, the REC3-0509SRW/H4/A/SMD/CTRL DC-DC converter offers a low noise, high efficiency solution for converting a 5V DC input to a regulated 3.3V output. By using switching technology, the converter is able to operate at a broad input voltage range with fast transient response. The device is housed in a small SMD package and is able to deliver up to 500mA of output current. This makes it an ideal solution for applications such as digital logic circuitry, where high efficiency, low noise and wide temperature range performance is required.