Products, Materials & Tools | Jan 20, 2011

ILD4035 – Step-down LED Driver for 1W LEDs

Infineons new ILD4035 LED Driver is dedicated specifically for driving 1W LEDs. The ILD4035 is a perfect match for indoor and outdoor LED lighting applications up to 42V supply voltage. The flexible dimming concept allows LED dimming either with a PWM signal or an analog voltage. ILD4035 comes with an internal power stage for LED drive currents up to 350mA and protection features such as LED thermal protection, overcurrent and overvoltage protection, all integrated in a small SC-74 package.

• Wide input voltage range: 4.5 V ... 42 V
• Internal switch
• 350 mA LED output current
• Over current protection
• Over voltage protection
• Reversible temperature shut down mechanism
• Inherent open- circuit LED protection
• Soft- start capability
• Low shut down current < 100 nA in operating voltage range
• Analog voltage and PWM dimming possible
• Typical 3% output current accuracy
• Very low LED current drift over temperature
• Minimum external components required
• Small Package: SC74

• LED Driver for general lighting applications
• Indoor illumination, residential lighting
• Outdoor illumination, street lighting
• Office lighting, downlights
• Architectural lighting

For additional information please download the datasheet or visit
Where to Buy - Infineon distribution partners and sales offices can be selected at


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