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
Active
0.15 10000
MORE INFO

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:

CHINA

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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 6879 1 Order Now
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Farnell Element14 EUROPE 9903 1 Order Now

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6879

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4000

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20000

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

EAR99

Country of Origin:

CHINA

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Distributor availability ofLDL1117S12R

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DIGIKEY WORLDWIDE 2333 1 Order Now
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Farnell Element14 EUROPE 156 1 Order Now

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20000

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

EAR99

Country of Origin:

CHINA

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Distributor availability ofLDL1117S25R

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DIGIKEY WORLDWIDE 5792 1 Order Now
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Farnell Element14 EUROPE 97 1 Order Now

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5792

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4620

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20000

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6523

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97

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LDL1117S18R SOT-223 Tape And Reel 1.8 1 1.2
Active
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 1352 1 Order Now
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MOUSER WORLDWIDE 7659 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2019-07-16

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DIGIKEY

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1352

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4900

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1

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Stock

20000

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2500

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20000

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7659

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3

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Distributor reported inventory date: 2019-07-16

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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 8025 1 Order Now
ARROW EUROPE 858 0 Order Now
MOUSER WORLDWIDE 12575 1 Order Now
Farnell Element14 EUROPE 4268 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

8025

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

858

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

12575

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4268

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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 8135 1 Order Now
RS COMPONENTS EUROPE 4940 1 Order Now
ARROW EUROPE 19895 0 Order Now
MOUSER WORLDWIDE 2185 1 Order Now
Farnell Element14 EUROPE 348 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

8135

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4940

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

19895

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2185

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

348

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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 11504 1 Order Now
FUTURE WORLDWIDE 7661 1 Order Now
ARROW EUROPE 4895 0 Order Now
ARROW AMERICA 2500 2500 Order Now
MOUSER WORLDWIDE 19880 1 Order Now
Farnell Element14 EUROPE 3497 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

11504

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

7661

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

4895

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

2500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

19880

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3497

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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 6879 1 Order Now
RS COMPONENTS EUROPE 4000 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7502 1 Order Now
Farnell Element14 EUROPE 9903 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

6879

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4000

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7502

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

9903

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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 2333 1 Order Now
RS COMPONENTS EUROPE 5000 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 1457 1 Order Now
Farnell Element14 EUROPE 156 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

2333

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

5000

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1457

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

156

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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 5792 1 Order Now
RS COMPONENTS EUROPE 4620 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 6523 1 Order Now
Farnell Element14 EUROPE 97 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

5792

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4620

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6523

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

97

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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 1352 1 Order Now
RS COMPONENTS EUROPE 4900 1 Order Now
FUTURE WORLDWIDE 20000 2500 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7659 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

1352

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4900

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

20000

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7659

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

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.