1. Products
  2. Power Management
  3. LED Driver IC
  4. Inductorless (Charge Pump) LED Drivers
  5. MAX1574


Features and Benefits

  • Up to 180mA (60mA/LED) Drive Capability
  • 83% Average Efficiency (PLED / PBATT) Over Li+ Battery Discharge
  • 0.5% (typ) LED Current Matching
  • Adaptive 1x/2x Mode Switchover
  • Low Input Ripple and EMI
  • 5% to 100% Dimming Through Single-Wire Serial Pulse Interface
  • Low 0.1µA Shutdown Current
  • 2.7V to 5.5V Supply Voltage Range
  • Soft-Start Limits Inrush Current
  • Output Overvoltage Protection
  • Thermal-Shutdown Protection
  • 10-Pin 3mm x 3mm TDFN Package

Product Details

The MAX1574 charge pump drives up to three white LEDs with regulated constant current for uniform intensity. By utilizing adaptive 1x/2x charge-pump modes and very-low-dropout current regulators, it achieves 180mA output drive capability and high efficiency over the 1-cell lithium-battery input voltage range. Fixed-frequency (1MHz) switching allows for tiny external components, and the regulation scheme is optimized to ensure low EMI and low input ripple.

The MAX1574 uses an external resistor to set the fullscale 100% LED current. An enable input (EN) is used for simple on/off control or can be pulsed repeatedly to set lower LED current in multiple steps down to 5%. Once the desired brightness is set, the MAX1574 maintains constant LED current as long as EN is kept high. If EN is kept low for more than 2ms, the MAX1574 enters shutdown. The MAX1574 is available in a 10-pin 3mm x 3mm TDFN package (0.8mm max height).


  • Camera Strobes/Flashes and Movie Lights
  • Cell Phones/Smartphones
  • LCD Backlights
  • PDAs, Digital Cameras, and Camcorders

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Product Recommendations

MAX1574 Companion Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX1574ETB+ Material Declaration Reliability Data Thin Dual Flatpack No Leads, Exposed Pad
MAX1574ETB+T Material Declaration Reliability Data Thin Dual Flatpack No Leads, Exposed Pad
Wafer Fabrication Data MAX1574 Reliability Data

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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