LD1117A

Active
Design Win

Low drop fixed and adjustable positive voltage regulators

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Product overview

Description

The LD1117A is a low drop voltage regulator able to provide up to 1 A of output current, available also in adjustable versions (VREF= 1.25 V). In fixed versions, the following output voltages are offered: 1.2 V, 1.8 V, and 3.3 V. The device is supplied in: SOT-223, DPAK and TO-220. Surface mounted packages optimize the thermal characteristics while offering a relevant space saving advantage. High efficiency is assured by an NPN pass transistor. Only a very common 10 μF minimum capacitor is needed for stability. Chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 2% at 25 °C.
  • All features

    • Low dropout voltage:
      • 1.15 V typ. @ IOUT= 1 A, 25 °C
    • Very low quiescent current:
      • 5 mA typ. @ 25 °C
    • Output current up to 1 A
    • Fixed output voltage of:
      • 1.2 V, 1.8 V, 3.3 V
    • Adjustable version availability (VREF= 1.25 V)
    • Internal current and thermal limit
    • Only 10 μF for stability
    • Available in ± 2% (at 25 °C) and 4% in full temperature range
    • High supply voltage rejection:
      • 80 dB typ. (at 25 °C)
    • Temperature range: 0 °C to 125 °C

EDA Symbols, Footprints and 3D Models

STMicroelectronics - LD1117A

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Footprints

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD1117ADT-TR
Active
DPAK Industrial Ecopack2
LD1117ADT12TR
Active
DPAK Industrial Ecopack2
LD1117ADT18TR
Active
DPAK Industrial Ecopack2
LD1117ADT33TR
Active
DPAK Industrial Ecopack2
LD1117AS12TR
Active
SOT-223 Industrial Ecopack2
LD1117AS18TR
Active
SOT-223 Industrial Ecopack2
LD1117AS33TR
Active
SOT-223 Industrial Ecopack2
LD1117ASTR
Active
SOT-223 Industrial Ecopack2
LD1117AV33
Active
TO-220 Industrial Ecopack2

LD1117ADT-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117ADT12TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117ADT18TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117ADT33TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117AS12TR

Package:

SOT-223

Material Declaration**:

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117AS18TR

Package:

SOT-223

Material Declaration**:

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117AS33TR

Package:

SOT-223

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117ASTR

Package:

SOT-223

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117AV33

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

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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
LD1117ADT-TR Available at 3 distributors

Distributor availability ofLD1117ADT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7449 1 Buy from Distributor
MOUSER WORLDWIDE 284 1 Buy from Distributor
Farnell Element14 EUROPE 7383 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

7449

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

284

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

7383

Min.Order

1

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel DPAK 0 125 CHINA
LD1117ADT33TR Available at 4 distributors

Distributor availability ofLD1117ADT33TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4840 1 Buy from Distributor
RS COMPONENTS EUROPE 2570 10 Buy from Distributor
Newark Element14 AMERICA 2500 0 Buy from Distributor
MOUSER WORLDWIDE 13368 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

4840

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2570

Min.Order

10

Newark Element14

Stock

2500

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

13368

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel DPAK 0 125 CHINA
LD1117ASTR Available at 7 distributors

Distributor availability ofLD1117ASTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 188 1 Buy from Distributor
RS COMPONENTS EUROPE 1180 20 Buy from Distributor
FUTURE WORLDWIDE 252500 0 Buy from Distributor
Newark Element14 AMERICA 502 0 Buy from Distributor
MOUSER WORLDWIDE 14175 1 Buy from Distributor
Farnell Element14 EUROPE 3931 1 Buy from Distributor
ANGLIA Live EUROPE 30 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

188

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1180

Min.Order

20

FUTURE

Stock

252500

Min.Order

0

Region

WORLDWIDE Buy from Distributor

Newark Element14

Stock

502

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

14175

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

3931

Min.Order

1

ANGLIA Live

Stock

30

Min.Order

1

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel SOT-223 0 125 CHINA
LD1117ADT18TR Available at 3 distributors

Distributor availability ofLD1117ADT18TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4932 1 Buy from Distributor
RS COMPONENTS EUROPE 100 1 Buy from Distributor
MOUSER WORLDWIDE 2638 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

4932

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

100

Min.Order

1

MOUSER

Stock

2638

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel DPAK 0 125 CHINA
LD1117AV33 Available at 3 distributors

Distributor availability ofLD1117AV33

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4302 1 Buy from Distributor
RS COMPONENTS EUROPE 930 10 Buy from Distributor
Newark Element14 AMERICA 2878 0 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

4302

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

930

Min.Order

10

Newark Element14

Stock

2878

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tube TO-220 0 125 CHINA
LD1117AS12TR Available at 5 distributors

Distributor availability ofLD1117AS12TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1052 1 Buy from Distributor
RS COMPONENTS EUROPE 6376 1 Buy from Distributor
AVNET AMERICA 42500 0 Buy from Distributor
MOUSER WORLDWIDE 68 1 Buy from Distributor
Farnell Element14 EUROPE 2616 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

1052

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

6376

Min.Order

1

AVNET

Stock

42500

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

68

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2616

Min.Order

1

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel SOT-223 0 125 CHINA
LD1117ADT12TR Available at 3 distributors

Distributor availability ofLD1117ADT12TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7467 1 Buy from Distributor
MOUSER WORLDWIDE 31804 1 Buy from Distributor
Farnell Element14 EUROPE 7225 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

7467

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

31804

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

7225

Min.Order

1

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel DPAK 0 125 CHINA
LD1117AS18TR Available at 5 distributors

Distributor availability ofLD1117AS18TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1162 1 Buy from Distributor
RS COMPONENTS EUROPE 1375 1 Buy from Distributor
MOUSER WORLDWIDE 9127 1 Buy from Distributor
Farnell Element14 EUROPE 1870 1 Buy from Distributor
ANGLIA Live EUROPE 5 2500 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

1162

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1375

Min.Order

1

MOUSER

Stock

9127

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1870

Min.Order

1

ANGLIA Live

Stock

5

Min.Order

2500

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel SOT-223 0 125 CHINA
LD1117AS33TR Available at 3 distributors

Distributor availability ofLD1117AS33TR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 11496 25 Buy from Distributor
Newark Element14 AMERICA 8096 0 Buy from Distributor
Farnell Element14 EUROPE 2923 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

RS COMPONENTS

Stock

11496

Min.Order

25

Newark Element14

Stock

8096

Min.Order

0

Region

AMERICA Buy from Distributor

Farnell Element14

Stock

2923

Min.Order

1

Distributor reported inventory date: 2022-08-18

Active
EAR99 NEC Tape and Reel SOT-223 0 125 CHINA

LD1117ADT-TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117ADT-TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117ADT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7449 1 Buy from Distributor
MOUSER WORLDWIDE 284 1 Buy from Distributor
Farnell Element14 EUROPE 7383 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

7449

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

284

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

7383

Min.Order

1

Distributor reported inventory date: 2022-08-18

LD1117ADT33TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117ADT33TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117ADT33TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4840 1 Buy from Distributor
RS COMPONENTS EUROPE 2570 10 Buy from Distributor
Newark Element14 AMERICA 2500 0 Buy from Distributor
MOUSER WORLDWIDE 13368 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

4840

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

2570

Min.Order

10

Newark Element14

Stock

2500

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

13368

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-18

LD1117ASTR Active

Package:
SOT-223
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117ASTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117ASTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 188 1 Buy from Distributor
RS COMPONENTS EUROPE 1180 20 Buy from Distributor
FUTURE WORLDWIDE 252500 0 Buy from Distributor
Newark Element14 AMERICA 502 0 Buy from Distributor
MOUSER WORLDWIDE 14175 1 Buy from Distributor
Farnell Element14 EUROPE 3931 1 Buy from Distributor
ANGLIA Live EUROPE 30 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

188

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1180

Min.Order

20

FUTURE

Stock

252500

Min.Order

0

Region

WORLDWIDE Buy from Distributor

Newark Element14

Stock

502

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

14175

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

3931

Min.Order

1

ANGLIA Live

Stock

30

Min.Order

1

Distributor reported inventory date: 2022-08-18

LD1117ADT18TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117ADT18TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117ADT18TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4932 1 Buy from Distributor
RS COMPONENTS EUROPE 100 1 Buy from Distributor
MOUSER WORLDWIDE 2638 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

4932

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

100

Min.Order

1

MOUSER

Stock

2638

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-18

LD1117AV33 Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117AV33

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117AV33

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4302 1 Buy from Distributor
RS COMPONENTS EUROPE 930 10 Buy from Distributor
Newark Element14 AMERICA 2878 0 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

4302

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

930

Min.Order

10

Newark Element14

Stock

2878

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2022-08-18

LD1117AS12TR Active

Package:
SOT-223
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117AS12TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117AS12TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1052 1 Buy from Distributor
RS COMPONENTS EUROPE 6376 1 Buy from Distributor
AVNET AMERICA 42500 0 Buy from Distributor
MOUSER WORLDWIDE 68 1 Buy from Distributor
Farnell Element14 EUROPE 2616 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

1052

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

6376

Min.Order

1

AVNET

Stock

42500

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

68

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2616

Min.Order

1

Distributor reported inventory date: 2022-08-18

LD1117ADT12TR Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117ADT12TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117ADT12TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7467 1 Buy from Distributor
MOUSER WORLDWIDE 31804 1 Buy from Distributor
Farnell Element14 EUROPE 7225 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

7467

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

31804

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

7225

Min.Order

1

Distributor reported inventory date: 2022-08-18

LD1117AS18TR Active

Package:
SOT-223
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117AS18TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117AS18TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1162 1 Buy from Distributor
RS COMPONENTS EUROPE 1375 1 Buy from Distributor
MOUSER WORLDWIDE 9127 1 Buy from Distributor
Farnell Element14 EUROPE 1870 1 Buy from Distributor
ANGLIA Live EUROPE 5 2500 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

DIGIKEY

Stock

1162

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1375

Min.Order

1

MOUSER

Stock

9127

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1870

Min.Order

1

ANGLIA Live

Stock

5

Min.Order

2500

Distributor reported inventory date: 2022-08-18

LD1117AS33TR Active

Package:
SOT-223
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LD1117AS33TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

0

Max:

125

Country of Origin:

CHINA

Distributor availability ofLD1117AS33TR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 11496 25 Buy from Distributor
Newark Element14 AMERICA 8096 0 Buy from Distributor
Farnell Element14 EUROPE 2923 1 Buy from Distributor

Distributor reported inventory date: 2022-08-18

Distributor Name

RS COMPONENTS

Stock

11496

Min.Order

25

Newark Element14

Stock

8096

Min.Order

0

Region

AMERICA Buy from Distributor

Farnell Element14

Stock

2923

Min.Order

1

Distributor reported inventory date: 2022-08-18

Swipe or click the button to explore more details Don't show this again

(*) 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