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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

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CAD/EDA Symbols, Footprints and Models

Quality and Reliability

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
LD39030DTPU28R
Active
DFN4 1x1 Industrial Ecopack2
LD39030DTPU28RBL
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

LD39030DTPU28R

Package:

DFN4 1x1

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN4 1x1

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD39030DTPU28RBL

Package:

DFN4 1x1

Material Declaration**:

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.

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
LD39030DTPU33R Available at 1 distributors

Distributor availability ofLD39030DTPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9423 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

9423

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

Buy now
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 3.3 0.15 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030DTPU105R Available at 2 distributors

Distributor availability ofLD39030DTPU105R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1995 1 Order Now
MOUSER WORLDWIDE 10000 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

1995

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

10000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

Buy now
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 1.05 0.15 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030DTPU30R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 3 0.15 / 1k
MORE INFO

Output Tolerance (typ):

-

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030DTPU28RBL No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 -
MORE INFO

Output Tolerance (typ):

-

Output Current (A) (nom):

0.3

Unit Price (US$):

-

Country of Origin:

CHINA

LD39030ADTPU28R No availability of distributors reported, please contact our sales office Buy now
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 2.8 0.15 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030DTPU12R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 1.2 0.15 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030ADTPU30R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 3 0.15 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030ADTPU18R Available at 2 distributors

Distributor availability ofLD39030ADTPU18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 9890 1 Order Now
Farnell Element14 EUROPE 200 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

MOUSER

Stock

9890

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

200

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-30

Buy now
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 1.8 0.15 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030DTPU18R No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 1.8 0.15 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030DTPU28R No availability of distributors reported, please contact our sales office Buy now
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 2.8 0.15 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030ADTPU12R Available at 3 distributors

Distributor availability ofLD39030ADTPU12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 120 1 Order Now
ARROW EUROPE 3550 0 Order Now
MOUSER WORLDWIDE 18863 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

120

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3550

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

18863

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

Buy now
Active
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 1.2 0.15 / 1k
MORE INFO

Output Tolerance (typ):

0.5

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030ADTPU25R No availability of distributors reported, please contact our sales office
Preview
EAR99 NEC Tape And Reel DFN4 1x1 -40 125 2.5 0.15 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.3

Unit Price (US$):

0.15

Country of Origin:

CHINA

LD39030DTPU33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLD39030DTPU33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9423 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

9423

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030DTPU105R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLD39030DTPU105R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1995 1 Order Now
MOUSER WORLDWIDE 10000 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

1995

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

10000

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.05

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030DTPU30R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3

Output Tolerance (typ)

-

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030DTPU28RBL

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

-

Output Tolerance (typ)

-

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

LD39030ADTPU28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030DTPU12R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030ADTPU30R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030ADTPU18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLD39030ADTPU18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 9890 1 Order Now
Farnell Element14 EUROPE 200 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

MOUSER

Stock

9890

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

200

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030DTPU18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030DTPU28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030ADTPU12R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLD39030ADTPU12R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 120 1 Order Now
ARROW EUROPE 3550 0 Order Now
MOUSER WORLDWIDE 18863 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

120

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3550

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

18863

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-09-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.2

Output Tolerance (typ)

0.5

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

CHINA

LD39030ADTPU25R

Marketing Status

Preview

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN4 1x1

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.3

Budgetary Price (US$)* / Qty

0.15 / 1k

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