LD2985

Active

Very low drop and low noise voltage regulator with inhibit function

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Product overview

Description

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.
  • All 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 μVrms
    • Small package SOT23-5L
    • Temperature range: - 40 °C to 125 °C

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Quality and Reliability

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
LD2985BM31R
Active
SOT23-5L Industrial Ecopack2
LD2985BM33R
Active
SOT23-5L Industrial Ecopack2
LD2985BM50R
Active
SOT23-5L Industrial Ecopack2

LD2985BM18R

Package:

SOT23-5L

Material Declaration**:

PDF XML

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**:

PDF XML

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

LD2985BM31R

Package:

SOT23-5L

Material Declaration**:

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**:

PDF XML

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.

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
LD2985BM25R Available at 4 distributors

Distributor availability ofLD2985BM25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3013 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 6699 1 Order Now
Farnell Element14 EUROPE 1933 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

3013

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

6699

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1933

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-20

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 2.5 0.1909 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.1909

Country of Origin:

CHINA

LD2985BM31R Available at 1 distributors

Distributor availability ofLD2985BM31R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 83 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

MOUSER

Stock

83

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-09-20

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3.1 0.1909 / 1k
MORE INFO

Output Tolerance (typ):

1.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.1909

Country of Origin:

CHINA

LD2985BM28R Available at 2 distributors

Distributor availability ofLD2985BM28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2941 1 Order Now
RS COMPONENTS EUROPE 1260 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

2941

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1260

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-20

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 2.8 0.1909 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.1909

Country of Origin:

MALAYSIA

LD2985BM50R Available at 4 distributors

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2365 1 Order Now
Newark Element14 AMERICA 313 0 Order Now
Farnell Element14 EUROPE 2869 1 Order Now
ANGLIA Live EUROPE 50 10 Order Now

Distributor reported inventory date: 2021-09-21

Distributor Name

RS COMPONENTS

Stock

2365

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

313

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

2869

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

50

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-21

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 5 0.1909 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.1909

Country of Origin:

CHINA

LD2985BM33R Available at 4 distributors

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 60 1 Order Now
Newark Element14 AMERICA 10 0 Order Now
Farnell Element14 EUROPE 5 1 Order Now
ANGLIA Live EUROPE 745 10 Order Now

Distributor reported inventory date: 2021-09-21

Distributor Name

DIGIKEY

Stock

60

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

10

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

5

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

745

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-21

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3.3 0.1909 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.1909

Country of Origin:

CHINA

LD2985BM18R Available at 2 distributors

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3008 1 Order Now
AVNET AMERICA 3000 0 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

3008

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-09-20

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 1.8 0.1909 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.1909

Country of Origin:

CHINA

LD2985BM30R Available at 3 distributors

Distributor availability ofLD2985BM30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1438 1 Order Now
MOUSER WORLDWIDE 715 1 Order Now
Farnell Element14 EUROPE 2052 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

1438

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

715

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2052

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-20

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3 0.1909 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.1909

Country of Origin:

CHINA

LD2985BM25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1909 / 1k

Distributor availability ofLD2985BM25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3013 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 6699 1 Order Now
Farnell Element14 EUROPE 1933 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

3013

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

6699

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1933

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.1909 / 1k

Country of Origin

CHINA

LD2985BM31R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1909 / 1k

Distributor availability ofLD2985BM31R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 83 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

MOUSER

Stock

83

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-09-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3.1

Output Tolerance (typ)

1.5

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.1909 / 1k

Country of Origin

CHINA

LD2985BM28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1909 / 1k

Distributor availability ofLD2985BM28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2941 1 Order Now
RS COMPONENTS EUROPE 1260 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

2941

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1260

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

2.8

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.1909 / 1k

Country of Origin

MALAYSIA

LD2985BM50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1909 / 1k

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2365 1 Order Now
Newark Element14 AMERICA 313 0 Order Now
Farnell Element14 EUROPE 2869 1 Order Now
ANGLIA Live EUROPE 50 10 Order Now

Distributor reported inventory date: 2021-09-21

Distributor Name

RS COMPONENTS

Stock

2365

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

313

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

2869

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

50

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-21

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.1909 / 1k

Country of Origin

CHINA

LD2985BM33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1909 / 1k

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 60 1 Order Now
Newark Element14 AMERICA 10 0 Order Now
Farnell Element14 EUROPE 5 1 Order Now
ANGLIA Live EUROPE 745 10 Order Now

Distributor reported inventory date: 2021-09-21

Distributor Name

DIGIKEY

Stock

60

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

10

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

5

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

745

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-21

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.1909 / 1k

Country of Origin

CHINA

LD2985BM18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1909 / 1k

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3008 1 Order Now
AVNET AMERICA 3000 0 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

3008

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-09-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.1909 / 1k

Country of Origin

CHINA

LD2985BM30R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.1909 / 1k

Distributor availability ofLD2985BM30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1438 1 Order Now
MOUSER WORLDWIDE 715 1 Order Now
Farnell Element14 EUROPE 2052 1 Order Now

Distributor reported inventory date: 2021-09-20

Distributor Name

DIGIKEY

Stock

1438

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

715

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2052

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3

Output Tolerance (typ)

2.5

Output Current (A) (nom)

0.15

Budgetary Price (US$)* / Qty

0.1909 / 1k

Country of Origin

CHINA

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors