LT3743EFE#PBF

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The PMIC – LED Drivers category houses the LT3743EFE#PBF, a non-synchronous boost converter developed by Linear Technology. This device is an ideal choice for direct driving an LED and other loads from a single-cell Li-Ion battery. The LT3743EFEPBF works as a Class-E synchronous buck/boost just like other PMICs, but does not require bypass capacitors or snubbers to achieve good efficiency at a wide range of load currents. The LT3743EFEPBF features an embedded thermal-protection circuit that allows it to protect against over-temperature and current overload conditions. Additionally, the device can be used to directly drive LEDs with an open-circuit detection and output current regulation in a wide range of applications.The LT3743EFEPBF offers high efficiency over a wide load range, with no efficiency-dropping bypass capacitors or snubbers required. The device is designed to regulate an open-circuit LED, which is a critical advantage over other traditional solutions. Additionally, the LT3743EFEPBF provides immunity to input voltage transients and is designed to enable hot-plugging of the LED. The device is capable of handling up to 2000mA of output current and provides up to 40V of output voltage. In terms of features, the LT3743EFEPBF incorporates a dedicated P-Channel internal power switch and a low-loss Schottky diode, providing seamless transition between step-up and step-down topologies. The device also provides a programmable soft-start as well as debug control pins for voltage sensing and programming of the device. Other features include a wide range of output currents and voltages, programmable current limiting, output voltage selection, and low ripple fluctuations. The LT3743EFEPBF features a “Soft Shut” function that improves reliability and safety during shutdown by gradually reducing the LED current during the shutdown process. The device also has an adjustable LED current limit, allowing users to adjust the LED current to their desired levels. Finally, the device provides a thermal protection circuit that prevents the LED from being subjected to excessive temperatures.Overall, the LT3743EFEPBF is an ideal choice for direct driving an LED and other loads from a single-cell Li-Ion battery. This device’s long list of features and various load current and voltage options make it a reliable and efficient solution for a wide range of applications.

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