LD1085

Active

3 A low drop positive voltage regulator: adjustable and fixed

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Product overview

Description

The LD1085 is a low drop voltage regulator able to provide up to 3 A of output current. Dropout is guaranteed at a maximum of 1.2 V at the maximum output current, decreasing at lower loads. The LD1085 is pin-to-pin compatible with the older 3-terminal adjustable regulators, but offers better performance in terms of drop and output tolerance. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085 quiescent current flows into the load, thus increase efficiency. Only a 10 μF minimum capacitor is need for stability.
The device is supplied in TO-220, TO-220FP, D²PAK and D²PAK/A packages. On-chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25 °C.
  • All features

    • Typical dropout 1.3 V (at 3 A)
    • Three terminal adjustable or fixed output voltage 1.8 V, 2.5 V, 3.3 V, 5 V
    • Guaranteed output current up to 3 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, TO-220FP, D²PAK, D²PAK/A
    • Pinout compatibility with standard adjustable VREG

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Related Applications

Industrial

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STMicroelectronics - LD1085

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD1085D2M-R
Active
D2PAK Industrial Ecopack2
LD1085D2M18R
Active
D2PAK Industrial Ecopack2
LD1085D2M25R
Active
D2PAK Industrial Ecopack2
LD1085D2M33R
Active
D2PAK Industrial Ecopack2
LD1085D2T-R
Active
D2PAK Industrial Ecopack2
LD1085D2T33R
Active
D2PAK Industrial Ecopack2
LD1085P
Active
TO-220FP Industrial Ecopack2
LD1085V
Active
TO-220 Industrial Ecopack2
LD1085V50
Active
TO-220 Industrial Ecopack2

LD1085D2M-R

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085D2M18R

Package:

D2PAK

Material Declaration**:

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085D2M25R

Package:

D2PAK

Material Declaration**:

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085D2M33R

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085D2T-R

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085D2T33R

Package:

D2PAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085P

Package:

TO-220FP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220FP

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085V

Package:

TO-220

Material Declaration**:

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1085V50

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

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
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
LD1085D2M33R Available at 3 distributors

Distributor availability ofLD1085D2M33R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 1310 5 Order Now
MOUSER WORLDWIDE 2309 1 Order Now
Farnell Element14 EUROPE 139 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

RS COMPONENTS

Stock

1310

Min.Order

5

Region

EUROPE Order Now

MOUSER

Stock

2309

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

139

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Buy Direct
Active
EAR99 NEC Tape And Reel D2PAK -40 125 CHINA 0.5704 / 1k
LD1085D2M-R Available at 4 distributors

Distributor availability ofLD1085D2M-R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 835 5 Order Now
FUTURE WORLDWIDE 1000 1000 Order Now
MOUSER WORLDWIDE 2843 1 Order Now
Farnell Element14 EUROPE 388 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

RS COMPONENTS

Stock

835

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

1000

Min.Order

1000

Region

WORLDWIDE Order Now

MOUSER

Stock

2843

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

388

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Buy Direct
Active
EAR99 NEC Tape And Reel D2PAK -40 125 CHINA 0.5704 / 1k
LD1085D2T33R Available at 3 distributors

Distributor availability ofLD1085D2T33R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 855 5 Order Now
MOUSER WORLDWIDE 182 1 Order Now
Farnell Element14 EUROPE 5 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

RS COMPONENTS

Stock

855

Min.Order

5

Region

EUROPE Order Now

MOUSER

Stock

182

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Buy Direct
Active
EAR99 NEC Tape And Reel D2PAK -40 125 CHINA 0.5704 / 1k
LD1085P Available at 3 distributors

Distributor availability ofLD1085P

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 692 1 Order Now
MOUSER WORLDWIDE 2471 1 Order Now
Farnell Element14 EUROPE 928 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

692

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2471

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

928

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Buy Direct
Active
EAR99 NEC Tube TO-220FP -40 125 CHINA 0.6578 / 1k
LD1085D2T-R Available at 3 distributors

Distributor availability ofLD1085D2T-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 794 1 Order Now
RS COMPONENTS EUROPE 1260 5 Order Now
Farnell Element14 EUROPE 1172 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

794

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1260

Min.Order

5

Region

EUROPE Order Now

Farnell Element14

Stock

1172

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Active
EAR99 NEC Tape And Reel D2PAK -40 125 CHINA 0.5704 / 1k
LD1085D2M25R Available at 4 distributors

Distributor availability ofLD1085D2M25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 679 1 Order Now
AVNET AMERICA 1000 0 Order Now
MOUSER WORLDWIDE 1948 1 Order Now
Farnell Element14 EUROPE 7 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

679

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1948

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Active
EAR99 NEC Tape And Reel D2PAK -40 125 CHINA 0.5704 / 1k
LD1085V50 Available at 6 distributors

Distributor availability ofLD1085V50

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1663 1 Order Now
RS COMPONENTS EUROPE 345 5 Order Now
AVNET AMERICA 1000 0 Order Now
Newark Element14 AMERICA 1 0 Order Now
MOUSER WORLDWIDE 1438 1 Order Now
Farnell Element14 EUROPE 43 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

1663

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

345

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

1

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1438

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

43

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Buy Direct
Active
EAR99 NEC Tube TO-220 -40 125 CHINA 0.4922 / 1k
LD1085V Available at 5 distributors

Distributor availability ofLD1085V

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1806 1 Order Now
RS COMPONENTS EUROPE 100 5 Order Now
MOUSER WORLDWIDE 2869 1 Order Now
Farnell Element14 EUROPE 6945 1 Order Now
ANGLIA Live EUROPE 1665 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

1806

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

100

Min.Order

5

Region

EUROPE Order Now

MOUSER

Stock

2869

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6945

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1665

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Buy Direct
Active
EAR99 NEC Tube TO-220 -40 125 CHINA 0.4922 / 1k
LD1085D2M18R Available at 4 distributors

Distributor availability ofLD1085D2M18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10894 1 Order Now
AVNET AMERICA 2000 0 Order Now
MOUSER WORLDWIDE 3674 1 Order Now
Farnell Element14 EUROPE 1295 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

10894

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3674

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1295

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

Buy Direct
Active
EAR99 NEC Tape And Reel D2PAK -40 125 CHINA 0.5704 / 1k

LD1085D2M33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5704 / 1k

Distributor availability ofLD1085D2M33R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 1310 5 Order Now
MOUSER WORLDWIDE 2309 1 Order Now
Farnell Element14 EUROPE 139 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

RS COMPONENTS

Stock

1310

Min.Order

5

Region

EUROPE Order Now

MOUSER

Stock

2309

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

139

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.5704 / 1k

Country of Origin

CHINA

LD1085D2M-R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5704 / 1k

Distributor availability ofLD1085D2M-R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 835 5 Order Now
FUTURE WORLDWIDE 1000 1000 Order Now
MOUSER WORLDWIDE 2843 1 Order Now
Farnell Element14 EUROPE 388 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

RS COMPONENTS

Stock

835

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

1000

Min.Order

1000

Region

WORLDWIDE Order Now

MOUSER

Stock

2843

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

388

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.5704 / 1k

Country of Origin

CHINA

LD1085D2T33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5704 / 1k

Distributor availability ofLD1085D2T33R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 855 5 Order Now
MOUSER WORLDWIDE 182 1 Order Now
Farnell Element14 EUROPE 5 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

RS COMPONENTS

Stock

855

Min.Order

5

Region

EUROPE Order Now

MOUSER

Stock

182

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.5704 / 1k

Country of Origin

CHINA

LD1085P

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.6578 / 1k

Distributor availability ofLD1085P

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 692 1 Order Now
MOUSER WORLDWIDE 2471 1 Order Now
Farnell Element14 EUROPE 928 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

692

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2471

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

928

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220FP

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.6578 / 1k

Country of Origin

CHINA

LD1085D2T-R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5704 / 1k

Distributor availability ofLD1085D2T-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 794 1 Order Now
RS COMPONENTS EUROPE 1260 5 Order Now
Farnell Element14 EUROPE 1172 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

794

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1260

Min.Order

5

Region

EUROPE Order Now

Farnell Element14

Stock

1172

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.5704 / 1k

Country of Origin

CHINA

LD1085D2M25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5704 / 1k

Distributor availability ofLD1085D2M25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 679 1 Order Now
AVNET AMERICA 1000 0 Order Now
MOUSER WORLDWIDE 1948 1 Order Now
Farnell Element14 EUROPE 7 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

679

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1948

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.5704 / 1k

Country of Origin

CHINA

LD1085V50

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4922 / 1k

Distributor availability ofLD1085V50

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1663 1 Order Now
RS COMPONENTS EUROPE 345 5 Order Now
AVNET AMERICA 1000 0 Order Now
Newark Element14 AMERICA 1 0 Order Now
MOUSER WORLDWIDE 1438 1 Order Now
Farnell Element14 EUROPE 43 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

1663

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

345

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

1

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1438

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

43

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.4922 / 1k

Country of Origin

CHINA

LD1085V

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4922 / 1k

Distributor availability ofLD1085V

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1806 1 Order Now
RS COMPONENTS EUROPE 100 5 Order Now
MOUSER WORLDWIDE 2869 1 Order Now
Farnell Element14 EUROPE 6945 1 Order Now
ANGLIA Live EUROPE 1665 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

1806

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

100

Min.Order

5

Region

EUROPE Order Now

MOUSER

Stock

2869

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6945

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1665

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.4922 / 1k

Country of Origin

CHINA

LD1085D2M18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5704 / 1k

Distributor availability ofLD1085D2M18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10894 1 Order Now
AVNET AMERICA 2000 0 Order Now
MOUSER WORLDWIDE 3674 1 Order Now
Farnell Element14 EUROPE 1295 1 Order Now

Distributor reported inventory date: 2021-09-25

Distributor Name

DIGIKEY

Stock

10894

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3674

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1295

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.5704 / 1k

Country of Origin

CHINA

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors