LTM8040IV#PBF

LTM8040IV#PBF FEATURES

250:1 Dimming RatioWide Range from 35mA to 1ASurface Mount LGA Package

LTM8040IV#PBF DESCRIPTION

The LTM®8040 is a fi xed frequency 1A step-down DC/DCμModule® regulator designed to operate as a constant cur-rent source. Internal circuitry monitors the output currentto provide accurate current regulation, which is ideal fordriving high current LEDs. High output current accuracyis maintained over a wide current range, from 35mA to1A, allowing a wide dimming range over an output volt-age range of 2.5V to 13V. Unique PWM circuitry allows adimming range of 250:1, avoiding the color shift normallyassociated with LED current dimming.With its wide input range of 4V to 36V, the LTM8040 regu-lates a broad array of power sources, from 4-cell batteriesand 5V logic rails to unregulated wall transformers, leadacid batteries and distributed power supplies.The LTM8040 is packaged in a thermally enhanced,compact (15mm × 9mm × 4.32mm) molded land gridarray (LGA) package suitable for automated assemblyby standard surface mount equipment. The LTM8040 isPb-free and RoHS compliant.

LTM8040IV#PBF APPLICATIONS