LT3744EUHE#PBF

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The LT3744EUHE#PBF is a power management integrated circuit (PMIC) designed specifically for driving light-emitting diodes (LEDs). It is a monolithic buck-boost converter that was developed to act as a driver for high-efficiency, high-brightness LEDs. The adjustable current, wide input voltage range and low quiescent current makes the LT3744EUHE#PBF ideal for applications such as backlighting for displays, general illumination lamps and spot lighting.

The LT3744EUHE#PBF provides accuracy and the ability to adjust the LED current over the entire dim range, thanks to its onboard power management circuit. It is able to deliver up to 350 mA of led current with minimal variations. With a high switching frequency of 500 kHz–1Mhz, its power efficiency will be as high as 95%.

It provides precisely regulated output voltage and current while allowing the voltage of the LEDs to be independent of the input voltage. The LT3744EUHE#PBF is capable of delivering up to 350 mA while achieving efficiency of up to 95%. The integrated current sensing feature provides programmable LED current control and reduces unnecessary losses.

The LT3744EUHE#PBF has a wide input voltage range of 4.5 V to 30 V, allowing it to be used in applications with up to 36 V input. Its proprietary switching scheme ensures that the IC can provide precise current regulation even with wide variations in the input voltage. In addition, the adjustable switching frequency and spread spectrum techniques reduce unwanted noise generated by the IC.

The device also has integrated soft-start circuitry, reducing inrush current and eliminating the need for an external soft-start network. The short-circuit protection feature prevents the IC from entering into an over-current condition and bypassing the safety margins in the circuit.

The LT3744EUHE#PBF from Linear Technology is an advanced monolithic LED driver that can be used for a variety of LED applications. With its wide input voltage range, integrated current sensing, adjustable current and low quiescent current, it is an ideal driver for high efficiency and high brightness LED applications.

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