1. Products
  2. Power Management
  3. LED Driver IC
  4. Step-Up (Boost) LED Drivers
  5. MAX25612


Features and Benefits

  • Integration Minimizes BOM and Cost
    • +5.0V to +48V Wide Input Voltage Range with a Maximum +65V Boost Output
    • Integrated pMOS Dimming FET Driver
    • ICTRL Input for Analog Dimming
    • Integrated High-Side Current-Sense Amplifier
    • 200Hz Ramp Generator Simplifies PWM Dimming
  • Simple to Optimize for Efficiency, Board Space, and Input Operating Range
    • Synchronous MOSFET Driver Improves Efficiencyby up to 5% for High-Current Boost, Buck-Boost, and High-Side Buck Applications
    • Programmable Switching Frequency (200kHz to 2.2MHz)
    • 20-Pin TSSOP Package with Exposed Pad and Thermally Enhanced 4mm x 4mm, 20-Pin Side-Wettable TQFN Packages
  • Protection Features Increase System Reliability
    • Short Circuit, Overvoltage and Thermal Protection
    • Fault Diagnosis through Fault Flag
  • Automotive Ready
    • -40°C to +125°C Operating Temperature Range
    • AEC-Q100 Qualified

Product Details

The MAX25612/MAX25612B is a single-channel high-brightness LED (HB LED) driver for automotive front-light applications such as high beam, low beam, daytime running light (DRL), turn indicator, fog light and other LED lights. It can take an input voltage from 5V to 48V and can drive a string of LEDs with a maximum output voltage of 65V. The MAX25612/MAX25612B is fully synchronous and is suitable for boost and buck-boost applications that need synchronous rectification providing efficiencies greater than 90%.

The MAX25612/MAX25612B senses output current at the high side of the LED string. High-side current sensing is required to protect against shorts from the output to the ground or battery input. It is also the most flexible scheme for driving LEDs, allowing boost, high-side buck, or buck-boost mode configurations. The PWM input provides LED dimming ratios of up to 5000:1, and the ICTRL input provides additional analog dimming capability in the MAX25612/MAX25612B. The MAX25612/MAX25612B also includes a active-low FLT flag that indicates open string, shorted string, and thermal shutdown. The MAX25612/MAX25612B has built-in spread-spectrum modulation for improved electromagnetic compatibility performance. The MAX25612/MAX25612B is available in a space-saving (4mm x 4mm), 20-pin side-wettable TQFN or a 20-pin TSSOP package and is specified to operate overthe -40°C to +125°C automotive temperature range.


  • Automotive Exterior Lighting:
  • Commercial, Industrial, and Architectural Lighting
  • Daytime Running Lights (DRLs)
  • Fog Light and Adaptive Front-Light Assemblies
  • High-Beam/Low-Beam/Signal/Position Lights

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX25612ATP/VY+ Material Declaration Reliability Data 20-LFCSP_SS-4X4X0.75
MAX25612ATP/VY+T Material Declaration Reliability Data 20-LFCSP_SS-4X4X0.75
MAX25612AUP/V+ Material Declaration Reliability Data 20-TSSOP_4.4-4.4_MM
MAX25612AUP/V+T Material Declaration Reliability Data 20-TSSOP_4.4-4.4_MM
Wafer Fabrication Data

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Evaluation Boards

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.