Features

• Wide Input Voltage Range Operation from 3.6V to 36V
• Resistor Adjustable 400kHz–2.2MHz Switching Frequency
• Shorted and Open LED Protected
• Internal Switch Current Sense Resistor
• External Resistor Programs LED Current, Pin Selects 10:1 Ratio
• 50mA/500mA LED Current Settings
• Catch Diode Current Sense to Prevent Runaway at High VIN
• Small Thermally Enhanced 10-Lead DFN (2mm × 3mm) and MSOP-10 Packages

Typical Application

Applications

• Automotive Signal Lighting
• Industrial Lighting
• Constant-Current, Constant Voltage Supplies

Packaging

Datasheet

• LT3592 - 500mA Wide Input Voltage Range Step-Down LED Driver with 10:1 Dimming

Reliability Data

• R518 - Reliability Data

LT Journal

• June 2008 - No PWM Signal Needed for Accurate Dim/Bright Control of Automotive Brake Lights and Other Signal LEDs

Press Release

• 36V 2.2MHz Buck LED Driver Powers 500mA LEDs from a 2mm x 3mm DFN

LTspice

• LT3592 Demo Circuit - 500mA Wide Input Voltage Range Step-Down LED Driver with 10:1 Dimming (12V to 3.4V LED @ 500mA/50mA)

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