LTM4643EY

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Product overview

LTM4643EYLTM4643EY are fixed frequency step-do wn DC/DC converters designed to operate as constant-current sources. An intern al sense resistor monitors the output c urrent allowing accurate current regula tion, ideal for driving high current LE Ds. High output current accuracy is mai ntained over a wide current range, from 35mA to 1A, allowing a wide dimming ra nge. Unique PWM circuitry allows a dimm ing range of 400:1, avoiding the color shift normally associated with LED curr ent dimming. Manufacturer:Linear TechnologyRoHS: DetailsSeries:LTM4643EYMounting Style:SMD/SMTPackage / Case:TSSOP-16Number of Outputs:1 OutputOutput Current:1 AInput Voltage, Min:4 VInput Voltage, Max:36 VTopology:BuckOperating Frequency:200 kHz to 2 MHzOutput Voltage:AdjustableMinimum Operating Temperature:- 40 CMaximum Operating Temperature:+ 85 CPackaging:TubeFeatures:PWM Dimming, Open LED ProtectionHeight:1.1 mmInput Voltage:4 V to 36 VNumber of Channels:1 ChannelProduct:LED DriversProduct Type:LED Lighting DriversFactory Pack Quantity:95Subcategory:Driver ICsSupply Current - Max:4 mAType:Step-Down LED DriverUnit Weight:0.040609 oz