ST Life.augmented


4 A HB LED driver with dimming function based onthe LED2001 in a QFN package
  • active Active

The purpose of the STEVAL-ILL054V1 demonstration board is aid in the evaluation of the LED2001, an 850 kHz fixed switching frequency monolithic step-down DC-DC converter. The LED2001 is designed to operate as a precise constant current source with an adjustable current capability up to 4 A DC.

The embedded PWM dimming circuitry features LED brightness control. The regulated output current is set by connecting a sensing resistor to the feedback pin.

The size of the overall application is minimized thanks to the high switching frequency and ceramic output capacitor compatibility.

The device is fully protected against overheating, overcurrent and output short-circuit.

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Errata Sheet
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Data Brief

Key Features

  • 3.0 V to 18 V operating input voltage range
  • 850 kHz fixed switching frequency
  • 100 mV typical current sense voltage drop
  • PWM dimming
  • ±7% output current accuracy
  • Synchronous rectification
  • Internal current limiting
  • Thermal shutdown
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1892: 4 A HB LED driver with dimming function based on the LED2001 in a QFN package
1.0 272 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-ILL054V1 gerber files
1.0 509 KB

Bill of Materials

Description Version Size
1.0 8 KB

Schematic Pack

Description Version Size
STEVAL-ILL054V1 schematics
1.0 77 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ILL054V1ActiveLED2001PUR-33Distributor reported inventory date: 2015-11-28
Distributor NameRegionStockMin. order

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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