1.2 A High PSRR low dropout linear voltage regulator

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  • The LDL1117 provides 1.2 A of maximum current with an input voltage range from 2.5 V to 18 V, and a typical dropout voltage of 350 mV@1.2 A.

    The high power supply rejection ratio of 87 dB at 120 Hz, rolling down to more than 40 dB at 100 kHz, makes the LDL1117 suitable for direct regulations in SMPS and secondary linear regulations in DC-DC converters.
    This device includes current limit, SOA and thermal protections.

    Key Features

    • Input voltage from 2.5 V to 18 V
    • 20 V AMR
    • Available on fixed output voltages: 1.2 V (1.185 V), 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5.0 V (other options are available on request)
    • Guaranteed output current 1.2 A
    • Typical dropout 350 mV@1.2 A
    • Internal thermal, current and power limitation
    • High PSRR 87 dB @120 Hz
    • Operating temperature range: -40 °C to 125 °C package SOT223

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Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
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LDL1117S50R SOT-223 Tape And Reel 3 1 1.2
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

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LDL1117S15R SOT-223 Tape And Reel 1.5 1 1.2
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0.15 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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LDL1117S33R SOT-223 Tape And Reel 3.3 1 1.2
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0.15 10000
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ECCN (US):

EAR99

Country of Origin:

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LDL1117S30R SOT-223 Tape And Reel 3 1 1.2
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0.15 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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DIGIKEY WORLDWIDE 6351 1 Order Now
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3580

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20000

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6639

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LDL1117S12R SOT-223 Tape And Reel 1.185 1 1.2
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0.15 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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DIGIKEY WORLDWIDE 2326 1 Order Now
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4980

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LDL1117S25R SOT-223 Tape And Reel 2.5 1 1.2
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0.15 10000
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ECCN (US):

EAR99

Country of Origin:

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Distributor availability ofLDL1117S25R

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DIGIKEY WORLDWIDE 4743 1 Order Now
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4743

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LDL1117S18R SOT-223 Tape And Reel 1.8 1 1.2
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0.15 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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Distributor availability ofLDL1117S18R

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DIGIKEY WORLDWIDE 1122 1 Order Now
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Farnell Element14 EUROPE 188 1 Order Now

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1122

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1

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4880

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1

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20000

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Stock

7546

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188

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Distributor reported inventory date: 2019-12-06

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LDL1117S50R

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLDL1117S50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4926 1 Order Now
ARROW EUROPE 9316 0 Order Now
MOUSER WORLDWIDE 5415 1 Order Now
Farnell Element14 EUROPE 2466 1 Order Now

Distributor reported inventory date: 2019-12-06

Distributor Name

DIGIKEY

Stock

4926

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

9316

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

5415

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2466

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-06

Output Voltage (V) (nom)

3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S15R

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLDL1117S15R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8110 1 Order Now
RS COMPONENTS EUROPE 4700 1 Order Now
ARROW EUROPE 19695 0 Order Now
Farnell Element14 EUROPE 336 1 Order Now

Distributor reported inventory date: 2019-12-06

Distributor Name

DIGIKEY

Stock

8110

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4700

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

19695

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

336

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-06

Output Voltage (V) (nom)

1.5

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S33R

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLDL1117S33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10143 1 Order Now
AVNET AMERICA 2500 0 Order Now
FUTURE WORLDWIDE 10000 2500 Order Now
ARROW EUROPE 2405 0 Order Now
MOUSER WORLDWIDE 7936 1 Order Now
Farnell Element14 EUROPE 1427 1 Order Now

Distributor reported inventory date: 2019-12-06

Distributor Name

DIGIKEY

Stock

10143

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

10000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

2405

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7936

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1427

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-06

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S30R

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLDL1117S30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6351 1 Order Now
RS COMPONENTS EUROPE 3580 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 6639 1 Order Now
Farnell Element14 EUROPE 9563 1 Order Now

Distributor reported inventory date: 2019-12-06

Distributor Name

DIGIKEY

Stock

6351

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3580

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6639

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

9563

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-06

Output Voltage (V) (nom)

3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S12R

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLDL1117S12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2326 1 Order Now
RS COMPONENTS EUROPE 4980 1 Order Now
ARROW EUROPE 20000 0 Order Now
Farnell Element14 EUROPE 20 1 Order Now

Distributor reported inventory date: 2019-12-06

Distributor Name

DIGIKEY

Stock

2326

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4980

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

20

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-06

Output Voltage (V) (nom)

1.185

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S25R

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLDL1117S25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4743 1 Order Now
RS COMPONENTS EUROPE 4320 1 Order Now
ARROW EUROPE 20000 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 6149 1 Order Now
Farnell Element14 EUROPE 4925 1 Order Now

Distributor reported inventory date: 2019-12-06

Distributor Name

DIGIKEY

Stock

4743

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4320

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

6149

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4925

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-06

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S18R

Package

SOT-223

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLDL1117S18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1122 1 Order Now
RS COMPONENTS EUROPE 4880 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7546 1 Order Now
Farnell Element14 EUROPE 188 1 Order Now

Distributor reported inventory date: 2019-12-06

Distributor Name

DIGIKEY

Stock

1122

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4880

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7546

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

188

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-06

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

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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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LDL1117S12R
Active
SOT-223 Industrial Ecopack2
LDL1117S15R
Active
SOT-223 Industrial Ecopack2
LDL1117S18R
Active
SOT-223 Industrial Ecopack2
LDL1117S25R
Active
SOT-223 Industrial Ecopack2
LDL1117S30R
Active
SOT-223 Industrial Ecopack2
LDL1117S33R
Active
SOT-223 Industrial Ecopack2
LDL1117S50R
Active
SOT-223 Industrial Ecopack2

LDL1117S12R

Package:

SOT-223

Material Declaration**:

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDL1117S15R

Package:

SOT-223

Material Declaration**:

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDL1117S18R

Package:

SOT-223

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDL1117S25R

Package:

SOT-223

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDL1117S30R

Package:

SOT-223

Material Declaration**:

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDL1117S33R

Package:

SOT-223

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDL1117S50R

Package:

SOT-223

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT-223

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.

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