MAX1553
Info: : PRODUCTION
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MAX1553

High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs

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Smallest, Highest Efficiency, 40V Driver for Up to 10 White LEDs

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.64
Features
  • Highly Integrated and Flexible Solution for Wide Range of Backlighting Applications
    • Constant-Current Regulation for Even LED Illumination
    • Internal 40V MOSFET Switch Capable of Driving 10 LEDs
    • 2.7V to 5.5V Input Voltage Range
    • Analog or PWM Control of LED Intensity
    • Optimized for Low Input Ripple
  • Soft-Start Minimizes Inrush Current
  • High Efficiency Improves Battery Life
    • Up to 88% Efficiency Driving 6 LEDs
    • Up to 82% Efficiency Driving 9 LEDs (20mA, VCC = 3.6V)
  • Tiny 8-Pin, 3mm x 3mm TDFN Package Saves Space
    • Small, Low-Profile External Components
Additional Details
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The MAX1553/MAX1554 drive white LEDs in series with a constant current to provide efficient display backlighting in cellular phones, PDAs, and other hand-held devices. The step-up converter includes an internal 40V, low RDSON, N-channel MOSFET switch for high efficiency and maximum battery life. The MAX1553 has a current limit of 480mA for driving two to six white LEDs, while the MAX1554 has a current limit of 970mA for driving up to 10 white LEDs.

A single analog/PWM Dual Mode™ input provides two simple means of brightness adjustment. A separate enable input provides on/off control. Soft-start minimizes inrush current during startup.

The MAX1553/MAX1554 are available in space-saving 8-pin TDFN 3mm x 3mm packages.

Applications

  • Cell Phones
  • Color Display Backlight
  • PDA, Palmtop, and Wireless Handhelds
Part Models 2
1ku List Price Starting From $1.64

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Software & Part Ecosystem

Software & Part Ecosystem

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