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
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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
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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:

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 6654 1 Order Now
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6654

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3640

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20000

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6826

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9806

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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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DIGIKEY WORLDWIDE 2333 1 Order Now
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5000

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20000

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1342

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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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DIGIKEY WORLDWIDE 5185 1 Order Now
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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 1219 1 Order Now
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Distributor reported inventory date: 2019-09-30

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1219

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1

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Stock

4880

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1

Region

EUROPE Order Now

FUTURE

Stock

20000

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2500

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20000

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0

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EUROPE Order Now

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7571

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183

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Distributor reported inventory date: 2019-09-30

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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 2001 1 Order Now
ARROW EUROPE 7238 0 Order Now
MOUSER WORLDWIDE 9636 1 Order Now
Farnell Element14 EUROPE 2580 1 Order Now

Distributor reported inventory date: 2019-09-30

Distributor Name

DIGIKEY

Stock

2001

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

7238

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

9636

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2580

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-30

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 338 1 Order Now

Distributor reported inventory date: 2019-09-30

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

338

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-30

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 6815 1 Order Now
FUTURE WORLDWIDE 2381 1 Order Now
ARROW EUROPE 7195 0 Order Now
MOUSER WORLDWIDE 10322 1 Order Now
Farnell Element14 EUROPE 5011 1 Order Now

Distributor reported inventory date: 2019-09-30

Distributor Name

DIGIKEY

Stock

6815

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

2381

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

7195

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

10322

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5011

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-30

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 6654 1 Order Now
RS COMPONENTS EUROPE 3640 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 6826 1 Order Now
Farnell Element14 EUROPE 9806 1 Order Now

Distributor reported inventory date: 2019-09-30

Distributor Name

DIGIKEY

Stock

6654

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3640

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6826

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

9806

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-30

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 1342 1 Order Now
Farnell Element14 EUROPE 134 1 Order Now

Distributor reported inventory date: 2019-09-30

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

1342

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

134

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-30

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 5185 1 Order Now
RS COMPONENTS EUROPE 4440 1 Order Now
ARROW EUROPE 20000 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 6222 1 Order Now
Farnell Element14 EUROPE 2537 1 Order Now

Distributor reported inventory date: 2019-09-30

Distributor Name

DIGIKEY

Stock

5185

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4440

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

6222

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2537

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-30

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 1219 1 Order Now
RS COMPONENTS EUROPE 4880 1 Order Now
FUTURE WORLDWIDE 20000 2500 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7571 1 Order Now
Farnell Element14 EUROPE 183 1 Order Now

Distributor reported inventory date: 2019-09-30

Distributor Name

DIGIKEY

Stock

1219

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4880

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

7571

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

183

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-30

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.