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 mVrms
    • 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**:

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
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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 6128 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 7356 1 Order Now
Farnell Element14 EUROPE 2166 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

6128

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

2166

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

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 93 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

MOUSER

Stock

93

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-23

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:

MALAYSIA

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 1470 1 Order Now
AVNET AMERICA 21000 0 Order Now
MOUSER WORLDWIDE 8685 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

5987

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1470

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

21000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

8685

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-23

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 6 distributors

Distributor availability ofLD2985BM50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 7385 1 Order Now
RS COMPONENTS EUROPE 8220 1 Order Now
Newark Element14 AMERICA 962 0 Order Now
MOUSER WORLDWIDE 11575 1 Order Now
Farnell Element14 EUROPE 1175 1 Order Now
ANGLIA Live EUROPE 5770 10 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

7385

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8220

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

962

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

11575

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1175

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5770

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

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 7 distributors

Distributor availability ofLD2985BM33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12893 1 Order Now
COMPEL EUROPE 2666 1 Order Now
AVNET AMERICA 69000 0 Order Now
FUTURE WORLDWIDE 9000 3000 Order Now
MOUSER WORLDWIDE 11280 1 Order Now
Farnell Element14 EUROPE 5224 1 Order Now
ANGLIA Live EUROPE 150750 10 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

12893

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2666

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

69000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

9000

Min.Order

3000

Region

WORLDWIDE Order Now

MOUSER

Stock

11280

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5224

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

150750

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

Buy Direct
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 6102 1 Order Now
AVNET AMERICA 6000 0 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

6102

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-02-23

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 6000 1 Order Now
AVNET AMERICA 12000 0 Order Now
MOUSER WORLDWIDE 3924 1 Order Now
Farnell Element14 EUROPE 2276 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

6000

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3924

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2276

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

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 6128 1 Order Now
AVNET AMERICA 6000 0 Order Now
MOUSER WORLDWIDE 7356 1 Order Now
Farnell Element14 EUROPE 2166 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

6128

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

2166

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

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 93 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

MOUSER

Stock

93

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-23

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

MALAYSIA

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 1470 1 Order Now
AVNET AMERICA 21000 0 Order Now
MOUSER WORLDWIDE 8685 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

5987

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1470

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

21000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

8685

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-02-23

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 7385 1 Order Now
RS COMPONENTS EUROPE 8220 1 Order Now
Newark Element14 AMERICA 962 0 Order Now
MOUSER WORLDWIDE 11575 1 Order Now
Farnell Element14 EUROPE 1175 1 Order Now
ANGLIA Live EUROPE 5770 10 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

7385

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8220

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

962

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

11575

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1175

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

5770

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

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 12893 1 Order Now
COMPEL EUROPE 2666 1 Order Now
AVNET AMERICA 69000 0 Order Now
FUTURE WORLDWIDE 9000 3000 Order Now
MOUSER WORLDWIDE 11280 1 Order Now
Farnell Element14 EUROPE 5224 1 Order Now
ANGLIA Live EUROPE 150750 10 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

12893

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2666

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

69000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

9000

Min.Order

3000

Region

WORLDWIDE Order Now

MOUSER

Stock

11280

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

5224

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

150750

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

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 6102 1 Order Now
AVNET AMERICA 6000 0 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

6102

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

6000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2021-02-23

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 6000 1 Order Now
AVNET AMERICA 12000 0 Order Now
MOUSER WORLDWIDE 3924 1 Order Now
Farnell Element14 EUROPE 2276 1 Order Now

Distributor reported inventory date: 2021-02-23

Distributor Name

DIGIKEY

Stock

6000

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3924

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2276

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-02-23

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