MAX1553

PRODUCTION

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

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

Data Sheet (Rev. 2) Product Selection Table
Part Models
2
1ku List Price
Starting From $1.64
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Part Details

  • 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
MAX1553
High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs
Integrated 1-cell Li+ chargers and Smart Power Selectors™ with dual (AC adapter and USB) power inputs | Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
Step-Up (Boost) LED Drivers 2
MAX1848
PRODUCTION White LED Step-Up Converter in SOT23
MAX1561
PRODUCTION High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs
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Evaluation Kits

MAX1553EVKIT

MAX1553 Evaluation Kit

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Features and Benefits

  • Constant-Current Regulation for Even LED Illumination
  • Up to 88% Efficiency Driving Six LEDs
  • Analog or PWM Dimming Control of LED Intensity
  • Small, Low-Profile Components
  • 2.7V to 5.5V Input Range
  • Tiny TDFN 3mm x 3mm IC Package
  • Fully Assembled and Tested

Product Details

The MAX1553 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) with two complete circuits for evaluating the MAX1553 and MAX1554 white LED step-up converters. The MAX1553 circuit operates from 2.7V to 5.5V and delivers an adjustable 0 to 20mA to drive up to six white LEDs connected in series. The MAX1554 circuit operates from 3.15V to 5.5V and delivers an adjustable 0 to 20mA for driving up to 10 white LEDs in series.

Applications

  • Cell Phones
  • Color Display Backlight
  • PDA, Palmtop, and Wireless Handhelds
MAX1553EVKIT
MAX1553 Evaluation Kit

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