Low drop fixed and adjustable positive voltage regulators

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  • 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.

    Key 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

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LD1117ADT-TR DPAK Tape And Reel 0 125
Active
0.278 10000 EAR99
MORE INFO

Country of Origin:

CHINA

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14035

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1

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650

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3542

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LD1117ADT33TR DPAK Tape And Reel 0 125
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0.278 10000 EAR99
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CHINA

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DIGIKEY WORLDWIDE 2923 1 Order Now
RS COMPONENTS EUROPE 7270 10 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
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MOUSER WORLDWIDE 15730 1 Order Now

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2923

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1

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7270

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10

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2500

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2500

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LD1117ASTR SOT-223 Tape And Reel 0 125
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0.186 10000 EAR99
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CHINA

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RS COMPONENTS EUROPE 7640 1 Order Now
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MOUSER WORLDWIDE 4026 1 Order Now
Farnell Element14 EUROPE 938 1 Order Now
ANGLIA Live EUROPE 250 2500 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

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737

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7640

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5000

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4026

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938

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250

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5000

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LD1117ADT18TR DPAK Tape And Reel 0 125
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0.257 10000 EAR99
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CHINA

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1542

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1

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RS COMPONENTS

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160

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560

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1

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Stock

3799

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LD1117AV33 TO-220 Tube 0 125
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0.211 10000 EAR99
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ARROW AMERICA 2312 1000 Order Now
MOUSER WORLDWIDE 3785 1 Order Now
Farnell Element14 EUROPE 1994 1 Order Now

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3090

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1994

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LD1117AS12TR SOT-223 Tape And Reel 0 125
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0.186 10000 EAR99
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ARROW EUROPE 6980 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 14479 1 Order Now

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9736

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1

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8850

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5000

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6980

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5000

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2500

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14479

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LD1117ADT12TR DPAK Tape And Reel 0 125
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0.278 10000 EAR99
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CHINA

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DIGIKEY WORLDWIDE 2170 1 Order Now
ARROW AMERICA 2500 2500 Order Now
MOUSER WORLDWIDE 8190 1 Order Now
Farnell Element14 EUROPE 4850 1 Order Now

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2170

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2500

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2500

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8190

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1

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4850

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LD1117AS18TR SOT-223 Tape And Reel 0 125
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0.186 10000 EAR99
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CHINA

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Distributor availability ofLD1117AS18TR

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DIGIKEY WORLDWIDE 5413 1 Order Now
RS COMPONENTS EUROPE 8821 25 Order Now
AVNET AMERICA 81415 0 Order Now
ARROW EUROPE 7500 0 Order Now
MOUSER WORLDWIDE 6154 1 Order Now
Farnell Element14 EUROPE 7245 1 Order Now
ANGLIA Live EUROPE 5 2500 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

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5413

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1

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8821

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25

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81415

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0

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Stock

7500

Min.Order

0

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Stock

6154

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Farnell Element14

Stock

7245

Min.Order

1

Region

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ANGLIA Live

Stock

5

Min.Order

2500

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Stock

5000

Min.Order

2500

Region

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LD1117AS33TR SOT-223 Tape And Reel 0 125
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0.186 10000 EAR99
MORE INFO

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CHINA

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DIGIKEY WORLDWIDE 11007 1 Order Now
RS COMPONENTS EUROPE 11667 25 Order Now
AVNET AMERICA 145000 0 Order Now
FUTURE WORLDWIDE 1599 1 Order Now
ARROW EUROPE 105500 0 Order Now
Newark Element14 AMERICA 1322 0 Order Now
MOUSER WORLDWIDE 6104 1 Order Now
Farnell Element14 EUROPE 13292 1 Order Now
RUTRONIK EUROPE 7500 2500 Order Now

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11007

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11667

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25

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145000

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1599

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105500

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Newark Element14

Stock

1322

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Stock

6104

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1

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Farnell Element14

Stock

13292

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1

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Stock

7500

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2500

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Distributor reported inventory date: 2019-09-16

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LD1117ADT-TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.278*

Distributor availability ofLD1117ADT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 14035 1 Order Now
RS COMPONENTS EUROPE 650 10 Order Now
MOUSER WORLDWIDE 3542 1 Order Now
Farnell Element14 EUROPE 5000 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

14035

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

650

Min.Order

10

Region

EUROPE Order Now

MOUSER

Stock

3542

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.278

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117ADT33TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.278*

Distributor availability ofLD1117ADT33TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2923 1 Order Now
RS COMPONENTS EUROPE 7270 10 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 15730 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

2923

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7270

Min.Order

10

Region

EUROPE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

15730

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.278

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117ASTR

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.186*

Distributor availability ofLD1117ASTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 737 1 Order Now
RS COMPONENTS EUROPE 7640 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 4026 1 Order Now
Farnell Element14 EUROPE 938 1 Order Now
ANGLIA Live EUROPE 250 2500 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

737

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7640

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

4026

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

938

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

250

Min.Order

2500

Region

EUROPE Order Now

RUTRONIK

Stock

5000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.186

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117ADT18TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.257*

Distributor availability ofLD1117ADT18TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1542 1 Order Now
RS COMPONENTS EUROPE 160 1 Order Now
ARROW AMERICA 560 1 Order Now
MOUSER WORLDWIDE 3799 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

1542

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

160

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

560

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

3799

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.257

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117AV33

Package

TO-220

Packing Type

Tube

Unit Price (US$)

0.211*

Distributor availability ofLD1117AV33

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2227 1 Order Now
RS COMPONENTS EUROPE 3090 10 Order Now
ARROW EUROPE 808 0 Order Now
Newark Element14 AMERICA 50 0 Order Now
ARROW AMERICA 2312 1000 Order Now
MOUSER WORLDWIDE 3785 1 Order Now
Farnell Element14 EUROPE 1994 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

2227

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3090

Min.Order

10

Region

EUROPE Order Now

ARROW

Stock

808

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

50

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2312

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

3785

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1994

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.211

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117AS12TR

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.186*

Distributor availability ofLD1117AS12TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9736 1 Order Now
RS COMPONENTS EUROPE 8850 25 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 6980 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 14479 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

9736

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8850

Min.Order

25

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

6980

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

14479

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.186

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117ADT12TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.278*

Distributor availability ofLD1117ADT12TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2170 1 Order Now
ARROW AMERICA 2500 2500 Order Now
MOUSER WORLDWIDE 8190 1 Order Now
Farnell Element14 EUROPE 4850 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

2170

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

8190

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4850

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.278

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117AS18TR

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.186*

Distributor availability ofLD1117AS18TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5413 1 Order Now
RS COMPONENTS EUROPE 8821 25 Order Now
AVNET AMERICA 81415 0 Order Now
ARROW EUROPE 7500 0 Order Now
MOUSER WORLDWIDE 6154 1 Order Now
Farnell Element14 EUROPE 7245 1 Order Now
ANGLIA Live EUROPE 5 2500 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

5413

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8821

Min.Order

25

Region

EUROPE Order Now

AVNET

Stock

81415

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

7500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6154

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7245

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5

Min.Order

2500

Region

EUROPE Order Now

RUTRONIK

Stock

5000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.186

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD1117AS33TR

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.186*

Distributor availability ofLD1117AS33TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 11007 1 Order Now
RS COMPONENTS EUROPE 11667 25 Order Now
AVNET AMERICA 145000 0 Order Now
FUTURE WORLDWIDE 1599 1 Order Now
ARROW EUROPE 105500 0 Order Now
Newark Element14 AMERICA 1322 0 Order Now
MOUSER WORLDWIDE 6104 1 Order Now
Farnell Element14 EUROPE 13292 1 Order Now
RUTRONIK EUROPE 7500 2500 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

11007

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

11667

Min.Order

25

Region

EUROPE Order Now

AVNET

Stock

145000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1599

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

105500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1322

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

6104

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

13292

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

7500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Operating Temperature (°C)

(min)

0

(max)

125

Marketing Status

Active

Unit Price (US$)

0.186

Quantity

10000

ECCN (US)

EAR99

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

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Technical Documentation

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      Low drop fixed and adjustable positive voltage regulators
      26.0
      725.19 KB
      PDF
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      Low drop fixed and adjustable positive voltage regulators

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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**:

PDF XML

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD1117AS18TR

Package:

SOT-223

Material Declaration**:

PDF XML

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**:

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.