com FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ LT3591 White LED Driver with Integrated Schottky in 3mm × 2mm DFN DESCRIPTION The LT®3591 is a fixed frequency step-up DC/DC converter specifically designed to drive up to ten white LEDs in series from a Li-Ion cell.
Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.
The device features a unique high side LED current sense that enables the part to function as a “one wire current source;” one side of the LED string can be returned to ground anywhere, allowing a simpler one wire LED connection.
Traditional LED drivers use a grounded resistor to sense LED...

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