Overview
Sample & Buy
Solutions
Resources
Tools & Software
Quality & Reliability
eDesignSuite
Get Started
Partner products
Sales Briefcase
  • 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

Recommended for you

Related Applications

Factory Automation

Smart Farming

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS12022
      1.2 A high PSRR low-dropout linear voltage regulator
      6.0
      1.19 MB
      PDF
      DS12022

      1.2 A high PSRR low-dropout linear voltage regulator

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description Version Size Action
      Low-dropout (LDO) linear voltage regulators Quick Reference Guide 2.1
      1.78 MB
      PDF
      Power management for handheld and portable 2.0
      1.09 MB
      PDF

      Low-dropout (LDO) linear voltage regulators Quick Reference Guide

      Power management for handheld and portable

Quality and Reliability

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**:

PDF XML

Marketing Status

Active

Package

SOT-223

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LDL1117S15R

Package:

SOT-223

Material Declaration**:

PDF XML

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
LDL1117S50R Available at 7 distributors

Distributor availability ofLDL1117S50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1456 1 Order Now
RS COMPONENTS EUROPE 7400 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 6737 0 Order Now
Newark Element14 AMERICA 944 0 Order Now
MOUSER WORLDWIDE 11437 1 Order Now
Farnell Element14 EUROPE 2885 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

1456

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7400

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

6737

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

944

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

11437

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2885

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Get sample SOT-223 Tape And Reel 3 1 1.2
Active
EAR99 CHINA 0.15 / 1k
LDL1117S15R Available at 4 distributors

Distributor availability ofLDL1117S15R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8037 1 Order Now
RS COMPONENTS EUROPE 4700 1 Order Now
AVNET AMERICA 2500 0 Order Now
Farnell Element14 EUROPE 333 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

8037

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4700

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

333

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Get sample SOT-223 Tape And Reel 1.5 1 1.2
Active
EAR99 CHINA 0.15 / 1k
LDL1117S33R Available at 8 distributors

Distributor availability ofLDL1117S33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 13869 1 Order Now
COMPEL EUROPE 2251 1 Order Now
RS COMPONENTS EUROPE 7425 1 Order Now
AVNET AMERICA 7500 0 Order Now
FUTURE WORLDWIDE 7500 2500 Order Now
ARROW EUROPE 10888 0 Order Now
MOUSER WORLDWIDE 11652 1 Order Now
Farnell Element14 EUROPE 9192 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

13869

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2251

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

7425

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

7500

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

7500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10888

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

11652

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

9192

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Get sample SOT-223 Tape And Reel 3.3 1 1.2
Active
EAR99 CHINA 0.15 / 1k
LDL1117S30R Available at 5 distributors

Distributor availability ofLDL1117S30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3012 1 Order Now
RS COMPONENTS EUROPE 2980 1 Order Now
Newark Element14 AMERICA 78 0 Order Now
MOUSER WORLDWIDE 795 1 Order Now
Farnell Element14 EUROPE 5502 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

3012

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2980

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

78

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

795

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5502

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Get sample SOT-223 Tape And Reel 3 1 1.2
Active
EAR99 CHINA 0.15 / 1k
LDL1117S12R Available at 3 distributors

Distributor availability ofLDL1117S12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2050 1 Order Now
RS COMPONENTS EUROPE 4980 1 Order Now
Farnell Element14 EUROPE 12 1 Order Now

Distributor reported inventory date: 2020-07-04

Distributor Name

DIGIKEY

Stock

2050

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4980

Min.Order

1

Region

EUROPE Order Now

Farnell Element14

Stock

12

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-04

Get sample SOT-223 Tape And Reel 1.185 1 1.2
Active
EAR99 CHINA 0.15 / 1k
LDL1117S25R Available at 4 distributors

Distributor availability ofLDL1117S25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3963 1 Order Now
RS COMPONENTS EUROPE 4200 1 Order Now
MOUSER WORLDWIDE 5270 1 Order Now
Farnell Element14 EUROPE 4559 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

3963

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4200

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

5270

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4559

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Get sample SOT-223 Tape And Reel 2.5 1 1.2
Active
EAR99 CHINA 0.15 / 1k
LDL1117S18R Available at 4 distributors

Distributor availability ofLDL1117S18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 981 1 Order Now
RS COMPONENTS EUROPE 4820 1 Order Now
MOUSER WORLDWIDE 7062 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

981

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4820

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

7062

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Get sample SOT-223 Tape And Reel 1.8 1 1.2
Active
EAR99 CHINA 0.15 / 1k

LDL1117S50R

Package

SOT-223

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLDL1117S50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1456 1 Order Now
RS COMPONENTS EUROPE 7400 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 6737 0 Order Now
Newark Element14 AMERICA 944 0 Order Now
MOUSER WORLDWIDE 11437 1 Order Now
Farnell Element14 EUROPE 2885 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

1456

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7400

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

6737

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

944

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

11437

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2885

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Output Voltage (V) (nom)

3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.15 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S15R

Package

SOT-223

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLDL1117S15R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8037 1 Order Now
RS COMPONENTS EUROPE 4700 1 Order Now
AVNET AMERICA 2500 0 Order Now
Farnell Element14 EUROPE 333 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

8037

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4700

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

333

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Output Voltage (V) (nom)

1.5

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.15 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S33R

Package

SOT-223

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLDL1117S33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 13869 1 Order Now
COMPEL EUROPE 2251 1 Order Now
RS COMPONENTS EUROPE 7425 1 Order Now
AVNET AMERICA 7500 0 Order Now
FUTURE WORLDWIDE 7500 2500 Order Now
ARROW EUROPE 10888 0 Order Now
MOUSER WORLDWIDE 11652 1 Order Now
Farnell Element14 EUROPE 9192 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

13869

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2251

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

7425

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

7500

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

7500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

10888

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

11652

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

9192

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.15 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S30R

Package

SOT-223

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLDL1117S30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3012 1 Order Now
RS COMPONENTS EUROPE 2980 1 Order Now
Newark Element14 AMERICA 78 0 Order Now
MOUSER WORLDWIDE 795 1 Order Now
Farnell Element14 EUROPE 5502 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

3012

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2980

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

78

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

795

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5502

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Output Voltage (V) (nom)

3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.15 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S12R

Package

SOT-223

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLDL1117S12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2050 1 Order Now
RS COMPONENTS EUROPE 4980 1 Order Now
Farnell Element14 EUROPE 12 1 Order Now

Distributor reported inventory date: 2020-07-04

Distributor Name

DIGIKEY

Stock

2050

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4980

Min.Order

1

Region

EUROPE Order Now

Farnell Element14

Stock

12

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-04

Output Voltage (V) (nom)

1.185

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.15 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S25R

Package

SOT-223

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLDL1117S25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3963 1 Order Now
RS COMPONENTS EUROPE 4200 1 Order Now
MOUSER WORLDWIDE 5270 1 Order Now
Farnell Element14 EUROPE 4559 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

3963

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4200

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

5270

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4559

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.15 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

LDL1117S18R

Package

SOT-223

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLDL1117S18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 981 1 Order Now
RS COMPONENTS EUROPE 4820 1 Order Now
MOUSER WORLDWIDE 7062 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2020-07-05

Distributor Name

DIGIKEY

Stock

981

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4820

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

7062

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-05

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.15 / 1k

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