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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - LD2985

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Symbols

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Footprints

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3D models

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 3 distributors

Distributor availability ofLD2985BM25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6003 1 Buy from Distributor
MOUSER WORLDWIDE 2525 1 Buy from Distributor
Farnell Element14 EUROPE 1729 1 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

6003

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

2525

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1729

Min.Order

1

Distributor reported inventory date: 2022-01-22

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 2.5 0.2407 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.2407

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 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

MOUSER

Stock

83

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-22

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3.1 0.2006 / 1k
MORE INFO

Output Tolerance (typ):

1.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.2006

Country of Origin:

CHINA

LD2985BM28R Available at 4 distributors

Distributor availability ofLD2985BM28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5860 1 Buy from Distributor
RS COMPONENTS EUROPE 231 1 Buy from Distributor
AVNET AMERICA 3000 0 Buy from Distributor
MOUSER WORLDWIDE 8895 1 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

5860

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

231

Min.Order

1

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

8895

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-22

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 2.8 0.2407 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.2407

Country of Origin:

CHINA

LD2985BM50R Available at 3 distributors

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2225 5 Buy from Distributor
Newark Element14 AMERICA 232 0 Buy from Distributor
ANGLIA Live EUROPE 5650 10 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

RS COMPONENTS

Stock

2225

Min.Order

5

Newark Element14

Stock

232

Min.Order

0

Region

AMERICA Buy from Distributor

ANGLIA Live

Stock

5650

Min.Order

10

Distributor reported inventory date: 2022-01-22

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 5 0.2407 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.2407

Country of Origin:

CHINA

LD2985BM33R Available at 1 distributors

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
Newark Element14 AMERICA 10 0 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

Newark Element14

Stock

10

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2022-01-22

Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3.3 0.2407 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.2407

Country of Origin:

CHINA

LD2985BM18R Available at 2 distributors

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2978 1 Buy from Distributor
AVNET AMERICA 3000 0 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

2978

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2022-01-22

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 1.8 0.2407 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.2407

Country of Origin:

CHINA

LD2985BM30R Available at 2 distributors

Distributor availability ofLD2985BM30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 438 1 Buy from Distributor
MOUSER WORLDWIDE 478 1 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

438

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

478

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-22

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 3 0.2407 / 1k
MORE INFO

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Unit Price (US$):

0.2407

Country of Origin:

CHINA

LD2985BM25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2407 / 1k

Distributor availability ofLD2985BM25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6003 1 Buy from Distributor
MOUSER WORLDWIDE 2525 1 Buy from Distributor
Farnell Element14 EUROPE 1729 1 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

6003

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

2525

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1729

Min.Order

1

Distributor reported inventory date: 2022-01-22

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

0.2407 / 1k

Country of Origin

CHINA

LD2985BM31R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2006 / 1k

Distributor availability ofLD2985BM31R

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

Distributor reported inventory date: 2022-01-22

Distributor Name

MOUSER

Stock

83

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-22

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

0.2006 / 1k

Country of Origin

CHINA

LD2985BM28R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2407 / 1k

Distributor availability ofLD2985BM28R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5860 1 Buy from Distributor
RS COMPONENTS EUROPE 231 1 Buy from Distributor
AVNET AMERICA 3000 0 Buy from Distributor
MOUSER WORLDWIDE 8895 1 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

5860

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

231

Min.Order

1

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

8895

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-22

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

0.2407 / 1k

Country of Origin

CHINA

LD2985BM50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2407 / 1k

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2225 5 Buy from Distributor
Newark Element14 AMERICA 232 0 Buy from Distributor
ANGLIA Live EUROPE 5650 10 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

RS COMPONENTS

Stock

2225

Min.Order

5

Newark Element14

Stock

232

Min.Order

0

Region

AMERICA Buy from Distributor

ANGLIA Live

Stock

5650

Min.Order

10

Distributor reported inventory date: 2022-01-22

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

0.2407 / 1k

Country of Origin

CHINA

LD2985BM33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2407 / 1k

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
Newark Element14 AMERICA 10 0 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

Newark Element14

Stock

10

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2022-01-22

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

0.2407 / 1k

Country of Origin

CHINA

LD2985BM18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2407 / 1k

Distributor availability ofLD2985BM18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2978 1 Buy from Distributor
AVNET AMERICA 3000 0 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

2978

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Buy from Distributor

Distributor reported inventory date: 2022-01-22

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

0.2407 / 1k

Country of Origin

CHINA

LD2985BM30R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2407 / 1k

Distributor availability ofLD2985BM30R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 438 1 Buy from Distributor
MOUSER WORLDWIDE 478 1 Buy from Distributor

Distributor reported inventory date: 2022-01-22

Distributor Name

DIGIKEY

Stock

438

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

478

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-01-22

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

0.2407 / 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