MAX1573
Info: : PRODUCTION
searchIcon
cartIcon

MAX1573

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

Show More showmore-icon

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

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.53
Features
  • 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
Additional Details
show more Icon

The MAX1573 fractional charge pump drives up to four white LEDs with regulated constant current for uniform intensity. By utilizing proprietary adaptive 1x/1.5x modes and ultra-low-dropout current regulators, it maintains the highest possible efficiency over the full 1-cell Li+ battery input voltage range. The 1MHz fixed-frequency switching allows for tiny external components and the regulation scheme is optimized to ensure low EMI and low input ripple.

An external resistor sets the full-scale LED current, while two digital inputs control on/off and select amongst three levels of brightness. A pulse-width modulation (PWM) signal can also be used to modulate LED brightness, requiring no additional components.

The MAX1573 is available in the tiny chip-scale UCSP™ (4 x 4 grid) and 16-pin thin QFN packages.

Applications

  • Cell Phones/Smartphones
  • MP3 Players
  • Other Handhelds with Color Displays
  • PDAs, Digital Cameras, and Camcorders
Part Models 2
1ku List Price Starting From $2.53

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX1573ETE+
  • HTML
  • HTML
MAX1573ETE+T
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

MAX1573ETE+

PRODUCTION

MAX1573ETE+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

arrow down

ASSEMBLY

MAX1573ETE+

PRODUCTION

MAX1573ETE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX1573EVKIT

Evaluation Kit for the MAX1573

zoom

MAX1573EVKIT

Evaluation Kit for the MAX1573

Evaluation Kit for the MAX1573

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 Detail

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

Recently Viewed