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A dual-channel step-down LED driver, the LT3964 from Linear Technology packs 40 V, 1.6 A power switches and an I2C interface for dimming control. [via]
Operating over an input voltage range of 4 V to 36 V, the driver integrates two independently controlled LED drivers that switch at up to 2 MHz. Synchronous operation results in efficiencies above 94% with both channels at full current load.
LED driver simplifies dimming control – [Link]
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