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
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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 6028 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 7356 1 Order Now
Farnell Element14 EUROPE 2109 1 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

6028

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

7356

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2109

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 2.5 0.166 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.166

Country of Origin:

MALAYSIA

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: 2021-05-11

Distributor Name

MOUSER

Stock

83

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-05-11

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3.1 0.166 / 1k
MORE INFO

Output Tolerance (typ):

1.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.166

Country of Origin:

CHINA

LD2985BM28R Available at 4 distributors

Distributor availability ofLD2985BM28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5987 1 Order Now
RS COMPONENTS EUROPE 1460 1 Order Now
AVNET AMERICA 33000 0 Order Now
MOUSER WORLDWIDE 8685 1 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

5987

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1460

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

33000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

8685

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-05-11

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 2.8 0.166 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.166

Country of Origin:

MALAYSIA

LD2985BM50R Available at 7 distributors

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6983 1 Order Now
RS COMPONENTS EUROPE 7960 1 Order Now
AVNET AMERICA 3000 0 Order Now
Newark Element14 AMERICA 911 0 Order Now
MOUSER WORLDWIDE 2469 1 Order Now
Farnell Element14 EUROPE 60 1 Order Now
ANGLIA Live EUROPE 5770 10 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

6983

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7960

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

911

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2469

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

60

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5770

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 5 0.166 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.166

Country of Origin:

CHINA

LD2985BM33R Available at 4 distributors

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 23 1 Order Now
FUTURE WORLDWIDE 3000 1 Order Now
Farnell Element14 EUROPE 4000 1 Order Now
ANGLIA Live EUROPE 45750 10 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

23

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4000

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

45750

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3.3 0.166 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.166

Country of Origin:

CHINA

LD2985BM18R Available at 2 distributors

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6028 1 Order Now
AVNET AMERICA 6000 0 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

6028

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-05-11

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 1.8 0.166 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.166

Country of Origin:

CHINA

LD2985BM30R Available at 4 distributors

Distributor availability ofLD2985BM30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5355 1 Order Now
AVNET AMERICA 12000 0 Order Now
MOUSER WORLDWIDE 3894 1 Order Now
Farnell Element14 EUROPE 2098 1 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

5355

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3894

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2098

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3 0.166 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.166

Country of Origin:

CHINA

LD2985BM25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.166 / 1k

Distributor availability ofLD2985BM25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6028 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 7356 1 Order Now
Farnell Element14 EUROPE 2109 1 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

6028

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

7356

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2109

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

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

0.166 / 1k

Country of Origin

MALAYSIA

LD2985BM31R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.166 / 1k

Distributor availability ofLD2985BM31R

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

Distributor reported inventory date: 2021-05-11

Distributor Name

MOUSER

Stock

83

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-05-11

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

0.166 / 1k

Country of Origin

CHINA

LD2985BM28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.166 / 1k

Distributor availability ofLD2985BM28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5987 1 Order Now
RS COMPONENTS EUROPE 1460 1 Order Now
AVNET AMERICA 33000 0 Order Now
MOUSER WORLDWIDE 8685 1 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

5987

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1460

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

33000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

8685

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-05-11

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

0.166 / 1k

Country of Origin

MALAYSIA

LD2985BM50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.166 / 1k

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6983 1 Order Now
RS COMPONENTS EUROPE 7960 1 Order Now
AVNET AMERICA 3000 0 Order Now
Newark Element14 AMERICA 911 0 Order Now
MOUSER WORLDWIDE 2469 1 Order Now
Farnell Element14 EUROPE 60 1 Order Now
ANGLIA Live EUROPE 5770 10 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

6983

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

7960

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

911

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2469

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

60

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5770

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

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

0.166 / 1k

Country of Origin

CHINA

LD2985BM33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.166 / 1k

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 23 1 Order Now
FUTURE WORLDWIDE 3000 1 Order Now
Farnell Element14 EUROPE 4000 1 Order Now
ANGLIA Live EUROPE 45750 10 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

23

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4000

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

45750

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

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

0.166 / 1k

Country of Origin

CHINA

LD2985BM18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.166 / 1k

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6028 1 Order Now
AVNET AMERICA 6000 0 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

6028

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-05-11

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

0.166 / 1k

Country of Origin

CHINA

LD2985BM30R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.166 / 1k

Distributor availability ofLD2985BM30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5355 1 Order Now
AVNET AMERICA 12000 0 Order Now
MOUSER WORLDWIDE 3894 1 Order Now
Farnell Element14 EUROPE 2098 1 Order Now

Distributor reported inventory date: 2021-05-11

Distributor Name

DIGIKEY

Stock

5355

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3894

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2098

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-11

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

0.166 / 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