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  • The LD39115J provides 150 mA maximum current from an input voltage ranging from 1.5 V to 5.5 V with a typical dropout voltage of 80 mV. It is stabilized with a ceramic capacitor. The ultra low drop voltage, low quiescent current and low noise features make it suitable for low power battery-powered applications. Power supply rejection is 65 dB at low frequencies and starts to roll off at 10 kHz. An enable logic control function puts the LD39115J in shutdown mode allowing a total current consumption lower than 1 μA. The device also includes a short-circuit constant current limiting and thermal protection.

    Key Features

    • Input voltage from 1.5 to 5.5 V
    • Ultra low dropout voltage (80 mV typ. at 100 mA load)
    • Very low quiescent current (20 μA typ. at no load, 35 μA typ. at 150 mA load, 1 μA max in off mode)
    • Very low noise (33 μVRMSfrom 1 kHz to 100 kHz at VOUT= 1.8 V)
    • Output voltage tolerance: ± 2.0 % @ 25 °C
    • 150 mA guaranteed output current
    • Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step
    • Logic-controlled electronic shutdown
    • Compatible with ceramic capacitor COUT= 1 μF
    • Internal current and thermal limit
    • Flip-chip 4 bumps 0.8 x 0.8 mm. pitch 0.4 mm
    • Temperature range: -40 °C to 125 °C

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CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD39115J12R
Active
Flip-Chip 4 Industrial Ecopack2
LD39115J14R
Active
Flip-Chip 4 Industrial Ecopack2
LD39115J15R
Active
Flip-Chip 4 Industrial Ecopack2
LD39115J18R
Active
Flip-Chip 4 Industrial Ecopack2
LD39115J25R
Active
Flip-Chip 4 Industrial Ecopack2
LD39115J28R
Active
Flip-Chip 4 Industrial Ecopack2
LD39115J30R
Active
Flip-Chip 4 Industrial Ecopack2
LD39115J33R
Active
Flip-Chip 4 Industrial Ecopack2

LD39115J12R

Package:

Flip-Chip 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Flip-Chip 4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39115J14R

Package:

Flip-Chip 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Flip-Chip 4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39115J15R

Package:

Flip-Chip 4

Material Declaration**:

Marketing Status

Active

Package

Flip-Chip 4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39115J18R

Package:

Flip-Chip 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Flip-Chip 4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39115J25R

Package:

Flip-Chip 4

Material Declaration**:

Marketing Status

Active

Package

Flip-Chip 4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39115J28R

Package:

Flip-Chip 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Flip-Chip 4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39115J30R

Package:

Flip-Chip 4

Material Declaration**:

Marketing Status

Active

Package

Flip-Chip 4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39115J33R

Package:

Flip-Chip 4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Flip-Chip 4

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
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Output Voltage (V) (nom)
Budgetary Price (US$)*/Qty
More info
min
max
LD39115J33R Available at 2 distributors

Distributor availability ofLD39115J33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4538 1 Order Now
Farnell Element14 EUROPE 3944 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

DIGIKEY

Stock

4538

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3944

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-22

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 3.3 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

ITALY

LD39115J28R Available at 1 distributors

Distributor availability ofLD39115J28R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 4491 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

4491

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 2.8 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

CHINA

LD39115J25R Available at 1 distributors

Distributor availability ofLD39115J25R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 2.5 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

CHINA

LD39115J12R Available at 2 distributors

Distributor availability ofLD39115J12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 100 1 Order Now
ARROW AMERICA 10000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

1

Region

AMERICA Order Now

Distributor reported inventory date: 2020-10-22

Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 1.2 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

ITALY

LD39115J15R Available at 1 distributors

Distributor availability ofLD39115J15R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 1.5 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

CHINA

LD39115J30R Available at 1 distributors

Distributor availability ofLD39115J30R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 3 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

ITALY

LD39115J14R Available at 3 distributors

Distributor availability ofLD39115J14R

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 25000 0 Order Now
MOUSER WORLDWIDE 5000 1 Order Now
Farnell Element14 EUROPE 4417 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

AVNET

Stock

25000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4417

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-22

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 1.4 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

CHINA

LD39115J18R Available at 4 distributors

Distributor availability ofLD39115J18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2263 1 Order Now
Newark Element14 AMERICA 150 0 Order Now
MOUSER WORLDWIDE 5688 1 Order Now
Farnell Element14 EUROPE 4744 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

DIGIKEY

Stock

2263

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

150

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5688

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4744

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-22

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel Flip-Chip 4 -40 125 1.8 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.15

Unit Price (US$):

0.298

Country of Origin:

ITALY

LD39115J33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4538 1 Order Now
Farnell Element14 EUROPE 3944 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

DIGIKEY

Stock

4538

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3944

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

ITALY

LD39115J28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J28R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 4491 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

4491

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

CHINA

LD39115J25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J25R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

CHINA

LD39115J12R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 100 1 Order Now
ARROW AMERICA 10000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

1

Region

AMERICA Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

ITALY

LD39115J15R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J15R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

CHINA

LD39115J30R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J30R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5000 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

ITALY

LD39115J14R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J14R

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 25000 0 Order Now
MOUSER WORLDWIDE 5000 1 Order Now
Farnell Element14 EUROPE 4417 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

AVNET

Stock

25000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4417

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.4

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

CHINA

LD39115J18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofLD39115J18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2263 1 Order Now
Newark Element14 AMERICA 150 0 Order Now
MOUSER WORLDWIDE 5688 1 Order Now
Farnell Element14 EUROPE 4744 1 Order Now

Distributor reported inventory date: 2020-10-22

Distributor Name

DIGIKEY

Stock

2263

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

150

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5688

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4744

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Flip-Chip 4

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

ITALY

(*) 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