1.2 A High PSRR low dropout linear voltage regulator

Download datasheet

This product is in stock in our e-store

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

Sample & Buy

Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
Budgetary Price (US$)*
Quantity
More info
Order from Distributors
Order from ST
LDL1117S50R SOT-223 Tape And Reel 3 1 1.2
Active
0.15 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLDL1117S50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 11497 1 Order Now
ARROW EUROPE 861 0 Order Now
MOUSER WORLDWIDE 12055 1 Order Now
Farnell Element14 EUROPE 585 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

11497

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

861

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

12055

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

585

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Get sample
LDL1117S15R SOT-223 Tape And Reel 1.5 1 1.2
Active
0.15 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

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
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 19895 0 Order Now
MOUSER WORLDWIDE 2184 1 Order Now
Farnell Element14 EUROPE 348 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

8135

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4940

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

19895

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2184

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

348

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Get sample
LDL1117S33R SOT-223 Tape And Reel 3.3 1 1.2
Active
0.15 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLDL1117S33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 958 1 Order Now
FUTURE WORLDWIDE 161 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 22836 1 Order Now
Farnell Element14 EUROPE 293 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

958

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

161

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

22836

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

293

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Get sample
LDL1117S30R SOT-223 Tape And Reel 3 1 1.2
Active
0.15 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLDL1117S30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7631 1 Order Now
RS COMPONENTS EUROPE 4020 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7420 1 Order Now
Farnell Element14 EUROPE 9 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

7631

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4020

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7420

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

9

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Get sample
LDL1117S12R SOT-223 Tape And Reel 1.185 1 1.2
Active
0.15 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLDL1117S12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2343 1 Order Now
RS COMPONENTS EUROPE 5000 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 1454 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

2343

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

1454

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-05-26

Get sample
LDL1117S25R SOT-223 Tape And Reel 2.5 1 1.2
Active
0.15 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLDL1117S25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6072 1 Order Now
RS COMPONENTS EUROPE 4820 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 6601 1 Order Now
Farnell Element14 EUROPE 116 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

6072

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4820

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6601

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

116

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Get sample
LDL1117S18R SOT-223 Tape And Reel 1.8 1 1.2
Active
0.15 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLDL1117S18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1387 1 Order Now
RS COMPONENTS EUROPE 4900 1 Order Now
FUTURE WORLDWIDE 20000 2500 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7652 1 Order Now
Farnell Element14 EUROPE 35 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

1387

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

7652

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

35

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Get sample

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 11497 1 Order Now
ARROW EUROPE 861 0 Order Now
MOUSER WORLDWIDE 12055 1 Order Now
Farnell Element14 EUROPE 585 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

11497

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

861

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

12055

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

585

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Output Voltage (V) (nom)

3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

1000

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
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 19895 0 Order Now
MOUSER WORLDWIDE 2184 1 Order Now
Farnell Element14 EUROPE 348 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

8135

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4940

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

19895

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2184

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

348

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

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

1000

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 958 1 Order Now
FUTURE WORLDWIDE 161 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 22836 1 Order Now
Farnell Element14 EUROPE 293 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

958

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

161

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

22836

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

293

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

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

1000

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 7631 1 Order Now
RS COMPONENTS EUROPE 4020 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7420 1 Order Now
Farnell Element14 EUROPE 9 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

7631

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4020

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7420

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

9

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

Output Voltage (V) (nom)

3

Output Tolerance (typ)

1

Output Current (A) (nom)

1.2

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

1000

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 2343 1 Order Now
RS COMPONENTS EUROPE 5000 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 1454 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

2343

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

1454

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-05-26

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

1000

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 6072 1 Order Now
RS COMPONENTS EUROPE 4820 1 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 6601 1 Order Now
Farnell Element14 EUROPE 116 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

6072

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4820

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

20000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6601

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

116

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

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

1000

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 1387 1 Order Now
RS COMPONENTS EUROPE 4900 1 Order Now
FUTURE WORLDWIDE 20000 2500 Order Now
ARROW EUROPE 20000 0 Order Now
MOUSER WORLDWIDE 7652 1 Order Now
Farnell Element14 EUROPE 35 1 Order Now

Distributor reported inventory date: 2019-05-26

Distributor Name

DIGIKEY

Stock

1387

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

7652

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

35

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-26

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

1000

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

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
      3.0
      1.61 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
      Brochure Power management guide 10.2018
      4.42 MB
      PDF
      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide 2.0
      216.23 KB
      PDF
      Power management for handheld and portable 2.0
      1.09 MB
      PDF

      Brochure Power management guide

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

      Power management for handheld and portable

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.