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  • The L9911 is a monolithic multifunction alternator voltage regulator intended for use in automotive application.

    It includes the control section, the field power stage, fault diagnostic circuit which drives a warning lamp, and the protection against short circuits.

    Key Features

    • Fully monolithic design
    • High side field driver
    • Thermal protection
    • Field short circuit protection
    • Protected diagnostic lamp driver
    • Protected high side relay driver
    • Complex diagnostics
    • Load response control
    • DFM output (field monitor)
    • Self start function

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS4125
      Car alternator multifunction smart voltage regulator
      13.0
      427.44 KB
      PDF
      DS4125

      Car alternator multifunction smart voltage regulator

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L9911F
NRND
MW 8L Automotive Ecopack1
L9911I
Active
MW 8L Automotive Ecopack1
L9911P
Active
MW 8L Automotive Ecopack1
L9911V
Active
MW 8L Automotive Ecopack1

L9911F

Package:

MW 8L

Material Declaration**:

Marketing Status

NRND

Package

MW 8L

Grade

Automotive

RoHS Compliance Grade

Ecopack1

L9911I

Package:

MW 8L

Material Declaration**:

Marketing Status

Active

Package

MW 8L

Grade

Automotive

RoHS Compliance Grade

Ecopack1

L9911P

Package:

MW 8L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MW 8L

Grade

Automotive

RoHS Compliance Grade

Ecopack1

L9911V

Package:

MW 8L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MW 8L

Grade

Automotive

RoHS Compliance Grade

Ecopack1

(**) 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
L9911P Available at 1 distributors

Distributor availability ofL9911P

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 500 0 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

ARROW

Stock

500

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tube MW 8L -40 150 MOROCCO 4.2 / 1k
L9911F No availability of distributors reported, please contact our sales office Buy now
NRND
EAR99 NEC Tube MW 8L -40 150 MOROCCO 4.2 / 1k
L9911V No availability of distributors reported, please contact our sales office Buy now
Active
EAR99 NEC Tube MW 8L -40 150 MOROCCO 4.2 / 1k
L9911I Available at 2 distributors

Distributor availability ofL9911I

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Order Now
ARROW EUROPE 475 0 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

475

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tube MW 8L -40 150 MOROCCO 4.2 / 1k

L9911P

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.2 / 1k

Distributor availability ofL9911P

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 500 0 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

ARROW

Stock

500

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tube

Package

MW 8L

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

4.2 / 1k

Country of Origin

MOROCCO

L9911F

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.2 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

MW 8L

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

4.2 / 1k

Country of Origin

MOROCCO

L9911V

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.2 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

MW 8L

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

4.2 / 1k

Country of Origin

MOROCCO

L9911I

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.2 / 1k

Distributor availability ofL9911I

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2 1 Order Now
ARROW EUROPE 475 0 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

475

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tube

Package

MW 8L

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

4.2 / 1k

Country of Origin

MOROCCO

(*) 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