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  • The LD39030 high accuracy voltage regulator provides 300 mA of maximum current from an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of 300 mV.

    It is available in DFN4 1x1 package, allowing the maximum space saving.
    The device is stabilized with a ceramic capacitor on the output. The ultra low drop voltage, low quiescent current and low noise features, together with the internal soft-start circuit, make the LD39030 suitable for low power battery-operated applications.
    An enable logic control function puts the LD39030 in shutdown mode allowing a total current consumption lower than 0.1 µA. Constant current and thermal protection are provided.

    Key Features

    • Input voltage from 1.5 to 5.5 V
    • Ultra low dropout voltage (300 mV typ. at 300 mA load)
    • Very low quiescent current (20 µA typ at no load, 0.03 µA typ in off mode)
    • Output voltage tolerance: ±0.5 % (A version) or ± 2.0 % @ 25 °C (standard version)
    • 300 mA guaranteed output current
    • High PSRR (80 dB@1 kHz, 50 db@100 kHz)
    • Wide range of output voltages available on request: from 0.8 V up to 5.0 V in 50 mV step
    • Logic-controlled electronic shutdown
    • Internal soft-start
    • Optional output voltage discharge feature
    • Compatible with ceramic capacitor COUT = 0.47 µF
    • Internal constant current and thermal protections
    • Available in DFN4 1x1
    • Operating temperature range: -40 °C to 125 °C

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
LD39030DTPU33R DFN4 1x1 Tape And Reel 3.3 2 0.3
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD39030DTPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9495 1 Order Now
RS COMPONENTS EUROPE 450 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

9495

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

450

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now
LD39030DTPU105R DFN4 1x1 Tape And Reel 1.05 0.5 0.3
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD39030DTPU105R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-16

LD39030DTPU30R DFN4 1x1 Tape And Reel 3 - 0.3
Preview
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

-

No availability of distributors reported, please contact our sales office
LD39030ADTPU28R DFN4 1x1 Tape And Reel 2.8 0.5 0.3
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

No availability of distributors reported, please contact our sales office Buy now
LD39030DTPU12R DFN4 1x1 Tape And Reel 1.2 0.5 0.3
Preview
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

-

No availability of distributors reported, please contact our sales office
LD39030ADTPU30R DFN4 1x1 Tape And Reel 3 0.5 0.3
Preview
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

-

No availability of distributors reported, please contact our sales office
LD39030DTPU25R DFN4 1x1 Tape And Reel 2.5 2 0.3
Preview
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

-

No availability of distributors reported, please contact our sales office
LD39030ADTPU18R DFN4 1x1 Tape And Reel 1.8 0.5 0.3
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD39030ADTPU18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 10000 1 Order Now
Farnell Element14 EUROPE 200 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

MOUSER

Stock

10000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

200

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now
LD39030DTPU18R DFN4 1x1 Tape And Reel 1.8 2 0.3
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD39030DTPU18R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 200 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

Farnell Element14

Stock

200

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

LD39030DTPU28R DFN4 1x1 Tape And Reel 2.8 2 0.3
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

No availability of distributors reported, please contact our sales office Buy now
LD39030ADTPU12R DFN4 1x1 Tape And Reel 1.2 0.5 0.3
Active
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD39030ADTPU12R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 58 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

MOUSER

Stock

58

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-16

Buy now
LD39030ADTPU25R DFN4 1x1 Tape And Reel 2.5 2 0.3
Preview
0.15 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

-

No availability of distributors reported, please contact our sales office

LD39030DTPU33R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLD39030DTPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9495 1 Order Now
RS COMPONENTS EUROPE 450 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

9495

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

450

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD39030DTPU105R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLD39030DTPU105R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2000 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

2000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

1.05

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD39030DTPU30R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Output Voltage (V) (nom)

3

Output Tolerance (typ)

-

Output Current (A) (nom)

0.3

Marketing Status

Preview

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

-

LD39030ADTPU28R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD39030DTPU12R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Marketing Status

Preview

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

-

LD39030ADTPU30R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Output Voltage (V) (nom)

3

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Marketing Status

Preview

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

-

LD39030DTPU25R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Preview

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

-

LD39030ADTPU18R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLD39030ADTPU18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 10000 1 Order Now
Farnell Element14 EUROPE 200 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

MOUSER

Stock

10000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

200

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD39030DTPU18R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLD39030DTPU18R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 200 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

Farnell Element14

Stock

200

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD39030DTPU28R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD39030ADTPU12R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Distributor availability ofLD39030ADTPU12R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 58 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

MOUSER

Stock

58

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Marketing Status

Active

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD39030ADTPU25R

Package

DFN4 1x1

Packing Type

Tape And Reel

Unit Price (US$)

0.15*

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Marketing Status

Preview

Unit Price (US$)

0.15

Quantity

10000

ECCN (US)

EAR99

Country of Origin

-

(*) 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**
LD39030ADTPU12R
Active
DFN4 1x1 Industrial Ecopack2
LD39030ADTPU18R
Active
DFN4 1x1 Industrial Ecopack2
LD39030ADTPU25R
Preview
DFN4 1x1 Industrial Ecopack2
LD39030ADTPU28R
Active
DFN4 1x1 Industrial Ecopack2
LD39030ADTPU30R
Preview
DFN4 1x1 Industrial Ecopack2
LD39030DTPU105R
Active
DFN4 1x1 Industrial Ecopack2
LD39030DTPU12R
Preview
DFN4 1x1 Industrial Ecopack2
LD39030DTPU18R
Active
DFN4 1x1 Industrial Ecopack2
LD39030DTPU25R
Preview
DFN4 1x1 Industrial Ecopack2
LD39030DTPU28R
Active
DFN4 1x1 Industrial Ecopack2
LD39030DTPU30R
Preview
DFN4 1x1 Industrial Ecopack2
LD39030DTPU33R
Active
DFN4 1x1 Industrial Ecopack2

LD39030ADTPU12R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Active

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030ADTPU18R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Active

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030ADTPU25R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Preview

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030ADTPU28R

Package:

DFN4 1x1

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030ADTPU30R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Preview

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU105R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Active

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU12R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Preview

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU18R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Active

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU25R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Preview

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU28R

Package:

DFN4 1x1

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU30R

Package:

DFN4 1x1

Material Declaration**:

Marketing Status

Preview

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU33R

Package:

DFN4 1x1

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN4 1x1

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.