MAX1570

PRODUCTION

White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump

Data Sheet (Rev. 1) Product Selection Table
Part Models
2
1ku List Price
Starting From $2.71
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Part Details

  • Excellent 0.3% LED-to-LED Current Matching
  • 30mA/LED Drive Capability
  • Proprietary 1x/1.5x Modes for Ultra-High Efficiency
  • Low Input Ripple and EMI
  • Eliminates Ballast Resistors
  • Digital or PWM LED Dimming Control
  • 0.1µA Shutdown Current
  • 2.7V to 5.5V Supply Voltage Range
  • Soft-Start Limits Inrush Current
  • Thermal-Shutdown Protection
  • No External Inductor, Schottky, or Zener Diode Required
  • Tiny 16-Pin 4mm x 4mm Thin QFN Package
MAX1570
White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump
MAX1570: 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
Inductorless (Charge Pump) LED Drivers 1
MAX1910
PRODUCTION 1.5x/2x High-Efficiency White LED Charge Pumps
Product 1
MAX1912
1.5x/2x High-Efficiency White LED Charge Pumps
Regulated Buck-Boost Charge Pumps 1
MAX1595
PRODUCTION Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump
Step-Down (Buck) LED Drivers 1
MAX1916
PRODUCTION Low-Dropout, Constant-Current Triple White LED Bias Supply
Step-Up (Boost) LED Drivers 1
MAX1848
PRODUCTION White LED Step-Up Converter in SOT23
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Evaluation Kits

MAX1570EVKIT

Evaluation Kit for the MAX1570

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Features and Benefits

  • Excellent (0.3%) LED-to-LED Current Matching
  • 2.7V to 5.5V Input Range
  • 30mA/LED Drive Capability
  • Five LEDs at 150mA Total Current
  • 0.1µA (typ) IC Shutdown Current
  • Digital PWM LED Dimming Control
  • Fixed 1MHz Switching Frequency
  • Surface-Mount Component Construction
  • 16-Pin 4mm x 4mm Thin QFN Package
  • Fully Assembled and Tested

Product Details

The MAX1570 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board. The EV kit contains the MAX1570, a white LED driver with high-efficiency charge pump. The EV kit accepts a 2.7V to 5.5V input and drives up to five white LEDs with regulated constant current for uniform intensity. The MAX1570 runs at 1MHz fixed frequency, allowing tiny external components.

Applications

  • Cell Phones/Smartphones
  • Digital Cameras and Camcorders
  • Portable MP3 Players
  • White LED Backlighting
MAX1570EVKIT
Evaluation Kit for the MAX1570

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