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  • The L7986/A is a step-down switching regulator with a 3.7 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 3 A current to the load depending on the application conditions. The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN. Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz. The DFN and the HSOP packages with exposed pad allow reducing the RthJAdown to 60 °C/W and 40 °C/W respectively.

    Key Features

    • 3 A DC output current
    • 4.5 V to 38 V input voltage
    • Output voltage adjustable from 0.6 V
    • 250 kHz switching frequency, programmable up to 1 MHz
    • Internal soft-start and enable
    • Low dropout operation: 100% duty cycle
    • Voltage feed-forward
    • Zero load current operation
    • Overcurrent and thermal protection
    • VFDFPN 3 x 3 - 10L and HSOP8 package

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    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-ISA099V1

      Active

      3 A step-down switching demonstration board based on the L7986 in DFN10 package

      PSU and Converter Solution Eval Boards --

      STEVAL-ISA100V1

      Active

      3 A step-down switching demonstration board based on the L7986A in HSOP8 package

      PSU and Converter Solution Eval Boards --
      STEVAL-ISA099V1

      Description:

      3 A step-down switching demonstration board based on the L7986 in DFN10 package
      STEVAL-ISA100V1

      Description:

      3 A step-down switching demonstration board based on the L7986A in HSOP8 package

CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L7986A
Active
PowerSO-8 Industrial Ecopack2
L7986ATR
Active
PowerSO-8 Industrial Ecopack2
L7986TR
Active
DFN10 3X3 Industrial Ecopack2

L7986A

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7986ATR

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7986TR

Package:

DFN10 3X3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN10 3X3

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

Converter

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]

Output

V This option is required and must be a number.
A This option is required and must be a number.

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
L7986ATR Available at 7 distributors

Distributor availability ofL7986ATR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 29 1 Order Now
RS COMPONENTS EUROPE 1370 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
Newark Element14 AMERICA 185 0 Order Now
ARROW AMERICA 12500 2500 Order Now
P&S ASIA/PACIFIC 9 1 Order Now
Farnell Element14 EUROPE 4020 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

DIGIKEY

Stock

29

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1370

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

Newark Element14

Stock

185

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

12500

Min.Order

2500

Region

AMERICA Order Now

P&S

Stock

9

Min.Order

1

Region

ASIA/PACIFIC Order Now

Farnell Element14

Stock

4020

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-23

Active
EAR99 NEC Tape And Reel PowerSO-8 - - PHILIPPINES 0.791 / 1k
L7986TR Available at 5 distributors

Distributor availability ofL7986TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 19878 1 Order Now
RS COMPONENTS EUROPE 8000 1 Order Now
ARROW EUROPE 12000 0 Order Now
MOUSER WORLDWIDE 6805 1 Order Now
Farnell Element14 EUROPE 3664 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

DIGIKEY

Stock

19878

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8000

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

12000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6805

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3664

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-23

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel DFN10 3X3 - - PHILIPPINES 0.791 / 1k
L7986A Available at 6 distributors

Distributor availability ofL7986A

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 4059 1 Order Now
ARROW EUROPE 170 0 Order Now
Newark Element14 AMERICA 486 0 Order Now
MOUSER WORLDWIDE 1495 1 Order Now
Farnell Element14 EUROPE 3127 1 Order Now
ANGLIA Live EUROPE 1300 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

COMPEL

Stock

4059

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

170

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

486

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1495

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3127

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-23

Buy Direct
Active
EAR99 NEC Tube PowerSO-8 - - PHILIPPINES 0.791 / 1k

L7986ATR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.791 / 1k

Distributor availability ofL7986ATR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 29 1 Order Now
RS COMPONENTS EUROPE 1370 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
Newark Element14 AMERICA 185 0 Order Now
ARROW AMERICA 12500 2500 Order Now
P&S ASIA/PACIFIC 9 1 Order Now
Farnell Element14 EUROPE 4020 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

DIGIKEY

Stock

29

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1370

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

Newark Element14

Stock

185

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

12500

Min.Order

2500

Region

AMERICA Order Now

P&S

Stock

9

Min.Order

1

Region

ASIA/PACIFIC Order Now

Farnell Element14

Stock

4020

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.791 / 1k

Country of Origin

PHILIPPINES

L7986TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.791 / 1k

Distributor availability ofL7986TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 19878 1 Order Now
RS COMPONENTS EUROPE 8000 1 Order Now
ARROW EUROPE 12000 0 Order Now
MOUSER WORLDWIDE 6805 1 Order Now
Farnell Element14 EUROPE 3664 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

DIGIKEY

Stock

19878

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8000

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

12000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6805

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3664

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN10 3X3

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.791 / 1k

Country of Origin

PHILIPPINES

L7986A

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.791 / 1k

Distributor availability ofL7986A

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 4059 1 Order Now
ARROW EUROPE 170 0 Order Now
Newark Element14 AMERICA 486 0 Order Now
MOUSER WORLDWIDE 1495 1 Order Now
Farnell Element14 EUROPE 3127 1 Order Now
ANGLIA Live EUROPE 1300 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

COMPEL

Stock

4059

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

170

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

486

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1495

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3127

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1300

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-23

ECCN (EU)

NEC

Packing Type

Tube

Package

PowerSO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.791 / 1k

Country of Origin

PHILIPPINES

(*) 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