Very low drop and low noise voltage regulator with inhibit function

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  • The LD2985 is a 150 mA fixed output voltage regulator. The ultra low drop voltage and the low quiescent current make them particularly suitable for low noise, low power applications, and in battery powered systems. In sleep mode quiescent current is less than 1 μA when INHIBIT pin is pulled low. Shutdown logic control function is available on pin 3 (TTL compatible). This means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. An external capacitor, CBYP= 10 nF, connected between bypass pin and GND reduces the noise to 30 μVrms. Typical application are in cellular phone, palmtop laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.

    Key Features

    • Very low dropout voltage (280 mV at 150 mA and 7 mV at 1 mA load)
    • Very low quiescent current (2 mA typ. at 150 mA load and 80 μA at no load)
    • Output current up to 150 mA
    • Logic controlled electronic shutdown
    • Output voltage of 1.8, 2.5, 2.8, 3, 3.1, 3.3, 5 V
    • Internal current and thermal limit
    • Low output noise voltage 30 mVrms
    • Small package SOT23-5L
    • Temperature range: - 40°C to 125 °C

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Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
Budgetary Price (US$)*
Quantity
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LD2985BM25R SOT23-5L Tape And Reel 2.5 2.5 0.15
Active
0.166 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofLD2985BM25R

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DIGIKEY WORLDWIDE 6459 1 Order Now
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Farnell Element14 EUROPE 2625 1 Order Now
RUTRONIK EUROPE 6000 3000 Order Now

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6459

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2625

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6000

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3000

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LD2985BM28R SOT23-5L Tape And Reel 2.8 2.5 0.15
Active
0.166 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofLD2985BM28R

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Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6000 1 Order Now
RS COMPONENTS EUROPE 1530 1 Order Now
AVNET AMERICA 21000 0 Order Now
MOUSER WORLDWIDE 5930 1 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

6000

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1530

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

21000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5930

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-11-12

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LD2985BM50R SOT23-5L Tape And Reel 5 2.5 0.15
Active
0.166 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5556 1 Order Now
RS COMPONENTS EUROPE 8995 1 Order Now
AVNET AMERICA 57000 0 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 4904 1 Order Now
Farnell Element14 EUROPE 2154 1 Order Now
RUTRONIK EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

5556

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8995

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

57000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

4904

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2154

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-12

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LD2985BM33R SOT23-5L Tape And Reel 3.3 2.5 0.15
Active
0.166 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10714 1 Order Now
AVNET AMERICA 75000 0 Order Now
FUTURE WORLDWIDE 9000 3000 Order Now
ARROW EUROPE 18000 0 Order Now
MOUSER WORLDWIDE 9587 1 Order Now
ANGLIA Live EUROPE 53920 10 Order Now

Distributor reported inventory date: 2019-11-12

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DIGIKEY

Stock

10714

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

75000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

9000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

18000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

9587

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

53920

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-12

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LD2985BM18R SOT23-5L Tape And Reel 1.8 2.5 0.15
Active
0.166 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6842 1 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 783 1 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

6842

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

783

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1

Region

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Distributor reported inventory date: 2019-11-12

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LD2985BM30R SOT23-5L Tape And Reel 3 2.5 0.15
Active
0.166 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLD2985BM30R

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DIGIKEY WORLDWIDE 100 1 Order Now
ARROW EUROPE 9000 0 Order Now
ARROW AMERICA 3000 3000 Order Now
MOUSER WORLDWIDE 5655 1 Order Now
Farnell Element14 EUROPE 4017 1 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

9000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

3000

Min.Order

3000

Region

AMERICA Order Now

MOUSER

Stock

5655

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4017

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-12

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LD2985BM25R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.166*

Distributor availability ofLD2985BM25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6459 1 Order Now
ARROW AMERICA 15000 3000 Order Now
MOUSER WORLDWIDE 8098 1 Order Now
Farnell Element14 EUROPE 2625 1 Order Now
RUTRONIK EUROPE 6000 3000 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

6459

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

15000

Min.Order

3000

Region

AMERICA Order Now

MOUSER

Stock

8098

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2625

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

6000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-12

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Marketing Status

Active

Unit Price (US$)

0.166

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LD2985BM28R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.166*

Distributor availability ofLD2985BM28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6000 1 Order Now
RS COMPONENTS EUROPE 1530 1 Order Now
AVNET AMERICA 21000 0 Order Now
MOUSER WORLDWIDE 5930 1 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

6000

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1530

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

21000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

5930

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-11-12

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Marketing Status

Active

Unit Price (US$)

0.166

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LD2985BM50R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.166*

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5556 1 Order Now
RS COMPONENTS EUROPE 8995 1 Order Now
AVNET AMERICA 57000 0 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 4904 1 Order Now
Farnell Element14 EUROPE 2154 1 Order Now
RUTRONIK EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

5556

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8995

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

57000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

6000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

4904

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2154

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-12

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Marketing Status

Active

Unit Price (US$)

0.166

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD2985BM33R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.166*

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10714 1 Order Now
AVNET AMERICA 75000 0 Order Now
FUTURE WORLDWIDE 9000 3000 Order Now
ARROW EUROPE 18000 0 Order Now
MOUSER WORLDWIDE 9587 1 Order Now
ANGLIA Live EUROPE 53920 10 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

10714

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

75000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

9000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

18000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

9587

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

53920

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-12

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Marketing Status

Active

Unit Price (US$)

0.166

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LD2985BM18R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.166*

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6842 1 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 783 1 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

6842

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

783

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-11-12

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Marketing Status

Active

Unit Price (US$)

0.166

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LD2985BM30R

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.166*

Distributor availability ofLD2985BM30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 100 1 Order Now
ARROW EUROPE 9000 0 Order Now
ARROW AMERICA 3000 3000 Order Now
MOUSER WORLDWIDE 5655 1 Order Now
Farnell Element14 EUROPE 4017 1 Order Now

Distributor reported inventory date: 2019-11-12

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

9000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

3000

Min.Order

3000

Region

AMERICA Order Now

MOUSER

Stock

5655

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4017

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-12

Output Voltage (V) (nom)

3

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Marketing Status

Active

Unit Price (US$)

0.166

Quantity

10000

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

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD2985BM18R
Active
SOT23-5L Industrial Ecopack2
LD2985BM25R
Active
SOT23-5L Industrial Ecopack2
LD2985BM28R
Active
SOT23-5L Industrial Ecopack2
LD2985BM30R
Active
SOT23-5L Industrial Ecopack2
LD2985BM33R
Active
SOT23-5L Industrial Ecopack2
LD2985BM50R
Active
SOT23-5L Industrial Ecopack2

LD2985BM18R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD2985BM25R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD2985BM28R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD2985BM30R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD2985BM33R

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD2985BM50R

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

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.