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  • The LD1084 is a low-drop voltage regulator providing up to 5 A of output current. Dropout is guaranteed at a maximum of 1.5 V at the maximum output current, decreasing at lower loads. The LD1084 is pin-to-pin compatible with the older 3-terminal adjustable regulators, but it has better performances in terms of drop and output tolerance.

    Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1084 quiescent current flows into the load, so to increase the efficiency. A minimum capacitor of 10 μF is needed for stability.
    The device is supplied in TO-220. The on-chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25 °C.

    Key Features

    • Typical dropout 1.3 V (at 5 A)
    • Three-terminal adjustable output voltage
    • Guaranteed output current up to 5 A
    • Output tolerance ± 1% at 25 °C and ± 2% in full temperature range
    • Internal power and thermal limit
    • Wide operating temperature range -40 °C to 125 °C
    • Package available: TO-220
    • Pinout compatibility with standard adjustable VREG

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS2900
      5 A low-drop positive voltage regulator adjustable
      10.0
      531.18 KB
      PDF
      DS2900

      5 A low-drop positive voltage regulator adjustable

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD1084V
Active
TO-220 Industrial Ecopack1

LD1084V

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

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
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
LD1084V Available at 10 distributors

Distributor availability ofLD1084V

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2835 1 Order Now
COMPEL EUROPE 4921 1 Order Now
RS COMPONENTS EUROPE 1015 5 Order Now
AVNET AMERICA 8000 0 Order Now
FUTURE WORLDWIDE 489 1 Order Now
ARROW EUROPE 1783 0 Order Now
ARROW AMERICA 11289 1 Order Now
MOUSER WORLDWIDE 1902 1 Order Now
Farnell Element14 EUROPE 253 1 Order Now
RUTRONIK EUROPE 150 50 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

2835

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

4921

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1015

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

8000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

489

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1783

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

11289

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

1902

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

253

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

150

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Buy now
Active
EAR99 NEC Tube TO-220 -40 125 CHINA 0.632 / 1k

LD1084V

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.632 / 1k

Distributor availability ofLD1084V

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2835 1 Order Now
COMPEL EUROPE 4921 1 Order Now
RS COMPONENTS EUROPE 1015 5 Order Now
AVNET AMERICA 8000 0 Order Now
FUTURE WORLDWIDE 489 1 Order Now
ARROW EUROPE 1783 0 Order Now
ARROW AMERICA 11289 1 Order Now
MOUSER WORLDWIDE 1902 1 Order Now
Farnell Element14 EUROPE 253 1 Order Now
RUTRONIK EUROPE 150 50 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

DIGIKEY

Stock

2835

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

4921

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1015

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

8000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

489

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1783

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

11289

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

1902

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

253

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

150

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.632 / 1k

Country of Origin

CHINA

(*) 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