MAX1573

PRODUCTION

White LED 1x/1.5x Charge Pump in UCSP and Thin QFN

Smallest, Highest Efficiency White LED Charge Pump Packaged in a UCSP™

Data Sheet (Rev. 2) Product Selection Table
Part Models
2
1ku List Price
Starting From $2.53
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Part Details

  • Proprietary Adaptive 1x/1.5x Modes
  • High Efficiency (PLEDs/PBATT), Up to 92%
  • 0.2% LED Current Matching
  • 28mA/LED Drive Capability
  • Low Input Ripple and EMI
  • Eliminates Ballast Resistors
  • Logic or PWM Dimming Control
  • Low 0.1µA Shutdown Current
  • 2.7V to 5.5V Input Voltage Range
  • Soft-Start Limits Inrush Current
  • Output Overvoltage Protection
  • Thermal Shutdown Protection
  • No External Schottky Diode Required
  • Tiny UCSP (2.1mm x 2.1mm x 0.6mm) and Thin QFN (4mm x 4mm) Packages
MAX1573
White LED 1x/1.5x Charge Pump in UCSP and Thin QFN
MAX1573: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Technical Articles 1

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Evaluation Kits

MAX1573EVKIT

Evaluation Kit for the MAX1573

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Features and Benefits

  • Proprietary Adaptive 1x/1.5x Modes
  • High Efficiency (PLEDs/PBATT), Up to 92%
  • 2% LED Current Matching
  • 28mA/LED Drive Capability
  • Eliminates Ballast Resistor
  • Low 0.1µA Shutdown Current
  • 2.7V to 5.5V Input Voltage Range
  • Tiny 2.1 x 2.1 x 0.6mm UCSP Package
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Details

The MAX1573 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board. The EV kit contains the MAX1573, a white LED driver with a high-efficiency charge pump. The EV kit accepts a 2.7V to 5.5V input voltage and drives up to 4 white LEDs with regulated constant current for uniform intensity. The MAX1573 runs at 1MHz fixed frequency, allowing tiny external components. An EV kit is available for both the UCSP™ and the TQFN packages.

Applications

  • Cell Phones/Smartphones
  • MP3 Players
  • Other Handhelds with Color Displays
  • PDAs, Digital Cameras, and Camcorders
MAX1573EVKIT
Evaluation Kit for the MAX1573

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