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  • The STLD41 is a boost converter that operates from 3.0 V to 21 V and can provide an output voltage as high as 38 V. It can drive up to 40 white LEDs connected in 4 strings of 10 LEDs in series. The total output current capability is 120 mA at an output voltage of 38 V. Regulation is performed by the internal error amplifier which works with the feedback voltage from the sensing resistor. The device can be turned ON/OFF by way of the logic signal connected to the EN pin. The LEDs can be dimmed by applying a PWM signal to the PWM pin.

    Key Features

    • Boost DC-DC converter
    • Drives up to 40 LEDs (4 strings of 10) with a total current up to 120 mA
    • Input voltage range: 3.0 V to 21 V
    • Output current control
    • 1.4 MHz fixed frequency PWM control
    • PWM input for output current dimming with frequency range 25 kHz - 50 kHz
    • 2 A integrated switch
    • Overvoltage protection
    • Chip overtemperature detection and protection
    • Less than 1 μA standby current
    • Soft-start function
    • Package DFN8 (3 x 3) 0.65 mm pitch

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Technical Documentation

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      AN4140
      STLD41 output power capability
      1.3
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      STLD41 output power capability

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STLD41PUR
NRND
VFDFPN 8 3x3x1.0 Industrial Ecopack2

STLD41PUR

Package:

VFDFPN 8 3x3x1.0

Material Declaration**:

Marketing Status

NRND

Package

VFDFPN 8 3x3x1.0

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.

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
STLD41PUR Available at 7 distributors

Distributor availability ofSTLD41PUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5422 1 Order Now
COMPEL EUROPE 24 1 Order Now
RS COMPONENTS EUROPE 3000 1 Order Now
ARROW EUROPE 6000 0 Order Now
Newark Element14 AMERICA 661 0 Order Now
MOUSER WORLDWIDE 1789 1 Order Now
Farnell Element14 EUROPE 1301 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

5422

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

24

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3000

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

661

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1789

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1301

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Buy now
NRND
EAR99 NEC Tape And Reel VFDFPN 8 3x3x1.0 -40 85 MALAYSIA 0.739 / 1k

STLD41PUR

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.739 / 1k

Distributor availability ofSTLD41PUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5422 1 Order Now
COMPEL EUROPE 24 1 Order Now
RS COMPONENTS EUROPE 3000 1 Order Now
ARROW EUROPE 6000 0 Order Now
Newark Element14 AMERICA 661 0 Order Now
MOUSER WORLDWIDE 1789 1 Order Now
Farnell Element14 EUROPE 1301 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

5422

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

24

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3000

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

661

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1789

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1301

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

VFDFPN 8 3x3x1.0

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

0.739 / 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