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  • The LED2001 is an 850 kHz fixed switching frequency monolithic step-down DC-DC converter designed to operate as 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 connecting a sensing resistor to the feedback pin. The embedded synchronous rectification and the 100 mV typical RSENSE voltage drop enhance the efficiency performance.

    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 thermal overheating, overcurrent and output short-circuit. The LED2001 is available in VFQFPN 4x4 mm 8-lead package, and HSOP8.

    Key Features

    • 3.0 V to 18 V operating input voltage range
    • 850 kHz fixed switching frequency
    • 100 mV typ. current sense voltage drop
    • PWM dimming
    • ± 7% output current accuracy
    • Synchronous rectification
    • 95 mΩ HS/ 69 mΩ LS typical RDS(on)
    • Peak current mode architecture
    • Embedded compensation network
    • Ceramic output capacitor compliant
    • Internal current limiting
    • Thermal shutdown

Recommended for you

Evaluation Tools

    • Part Number

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

      4 A HB LED driver with dimming function based on the LED2001 in an HSOP8 package

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS9524
      4 A monolithic step-down current source with synchronous rectification
      2.0
      7.96 MB
      PDF
      DS9524

      4 A monolithic step-down current source with synchronous rectification

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LED2001PHR
Active
PowerSO-8 Industrial Ecopack2
LED2001PUR
Active
VFDFPN 8 4x4x1.0 Industrial Ecopack2

LED2001PHR

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LED2001PUR

Package:

VFDFPN 8 4x4x1.0

Material Declaration**:

Marketing Status

Active

Package

VFDFPN 8 4x4x1.0

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com 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.

eDesignSuite

LED Driver

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

LED custom

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
LED2001PHR Available at 5 distributors

Distributor availability ofLED2001PHR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2138 1 Order Now
RS COMPONENTS EUROPE 3030 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 3238 1 Order Now
Farnell Element14 EUROPE 385 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

2138

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3030

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3238

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

385

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Sample & Buy Buy now
Active
EAR99 NEC Tape And Reel PowerSO-8 -40 150 PHILIPPINES 0.935 / 1k
LED2001PUR Available at 4 distributors

Distributor availability ofLED2001PUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4400 1 Order Now
RS COMPONENTS EUROPE 4500 1 Order Now
P&S ASIA/PACIFIC 37 1 Order Now
MOUSER WORLDWIDE 7898 1 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

4400

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4500

Min.Order

1

Region

EUROPE Order Now

P&S

Stock

37

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

7898

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-04

Sample & Buy Buy now
Active
EAR99 NEC Tape And Reel VFDFPN 8 4x4x1.0 -40 150 MALAYSIA 0.935 / 1k

LED2001PHR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.935 / 1k

Distributor availability ofLED2001PHR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2138 1 Order Now
RS COMPONENTS EUROPE 3030 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 3238 1 Order Now
Farnell Element14 EUROPE 385 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

2138

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3030

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3238

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

385

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSO-8

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

0.935 / 1k

Country of Origin

PHILIPPINES

LED2001PUR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.935 / 1k

Distributor availability ofLED2001PUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4400 1 Order Now
RS COMPONENTS EUROPE 4500 1 Order Now
P&S ASIA/PACIFIC 37 1 Order Now
MOUSER WORLDWIDE 7898 1 Order Now

Distributor reported inventory date: 2020-08-04

Distributor Name

DIGIKEY

Stock

4400

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4500

Min.Order

1

Region

EUROPE Order Now

P&S

Stock

37

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

7898

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-04

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

VFDFPN 8 4x4x1.0

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

0.935 / 1k

Country of Origin

MALAYSIA

(*) 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