LT3745EUJ#PBF

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The LT3745EUJ#PBF is a PMIC-LED Driver integrated circuit (IC) targeted at the LED cell phone and palm device markets. This PMIC is designed to work with LEDs ranging from 0.25W to 16W. It utilizes a synchronous rectified buck converter that provides unique current control with fast transient response, while providing reduced size, weight, complexity and cost.

The LT3745EUJ#PBF offers an adjustable LED current interface, allowing designers to control LED current in a range from 0A to 16A. It provides precision current control with fast transient response and a high current output accuracy of ±2% over-current. The IC also has a wide input voltage range from 2.5V to 16V, allowing it to be used in a variety of different applications.

The LT3745EUJ#PBF also provides a true digital power control interface, allowing for precise control over the output voltage, current and temperature. It also has a built-in thermal shutdown protection, as well as an over-temperature and over-current protection, making it a reliable and safe choice for any application.

In terms of working principle, the LT3745EUJ#PBF is a synchronous buck converter that use two high-side and low-side MOSFETs to convert an input voltage to a lower level. The two MOSFETs are alternately turned on and off, allowing the current to flow through them in an alternating pattern. This makes the LT3745EUJ#PBF a highly efficient converter, as it can achieve high conversion efficiency and low switching losses.

Due to its high conversion efficiency, the LT3745EUJ#PBF is ideal for applications such as portable devices, cell phones, and PDAs. Its digital power interface also provides for precise and efficient system-level control, making it a valuable tool for manufacturers in these device markets.

The LT3745EUJ#PBF is also suitable for applications that require a wide range of output voltage levels, such as digital power supplies, automotive lighting, LED lighting, and more. The adjustable LED current control also allows designers to customize the LED output, making it perfect for applications that require unique LED configurations.

The LT3745EUJ#PBF provides a variety of features and benefits that make it an ideal solution for LED-based applications. Its wide input voltage range, fast transient response, and high current output accuracy make it suitable for a variety of applications. Its true digital power interface provides precision control over output voltage, current and temperature, while the built-in over-temperature and over-current protection make it a reliable and safe choice for any LED-based application.

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