LT3579IFE#PBF

LT3579IFE#PBF Application Field and Working Principle

The LT3579IFE#PBF is a high-efficiency, current-mode switching regulator controller with a power factor correction (PFC) boost stage. This is a 5V single-end flyback device that offers a high power factor and wide input voltage range (<90Vac). This high-efficiency and low component count device provides a robust boost circuit for the application of LED lighting, such as for automotive and high-definition TV lighting. The LT3579IFE#PBF offers a wide input voltage range, allowing users to use the same driver for a variety of power supplies.

The LT3579IFE#PBF works by regulating an input voltage from a large range of AC sources. This voltage is then regulated with an internal high-voltage MOSFET to achieve an output voltage of up to 17V. This device also provides high frequency PFC control, meaning the peak current draw is always regulated to keep it at a constant level and ensure high power factor.

The LT3579IFE#PBF is also capable of delivering high efficiency DC/DC conversion up to a peak power of 400W. This is achievable with low component count and very low EMI since the device operates at a frequency of up to 300kHz. In addition, this device is RoHS compliant and is certified according to UL/EN/IEC60950.

In an application to support LED lighting, the LT3579IFE#PBF can be used to deliver high peak power with low component count and low EMI and also provide a good power factor. The device offers a good combination of features, making it a good choice for such applications. It also has a wide input voltage range, which is useful for applications with a large range of input sources.

Overall, the LT3579IFE#PBF is a high-efficiency, current mode, PFC-controlled switching regulator that is well suited for a variety of LED lighting applications. It offers a wide input voltage range, high efficiency and low component count, making it an attractive choice for LED lighting applications.