LD2985

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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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STMicroelectronics - LD2985

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD2985BM18R
NRND
SOT23-5L Industrial Ecopack2
LD2985BM25R
Active
SOT23-5L Industrial Ecopack2
LD2985BM28R
NRND
SOT23-5L Industrial Ecopack2
LD2985BM30R
Active
SOT23-5L Industrial Ecopack2
LD2985BM31R
NRND
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

NRND

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

NRND

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

NRND

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

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Part Number
Marketing Status
Budgetary Price (US$)*/Qty
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Order from distributors
Package
Packing Type
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Temperature (°C)
Grade
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
min
max
LD2985BM25R
Available at distributors

Distributor availability of LD2985BM25R

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LD2985BM31R
Available at distributors

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LD2985BM28R
Available at distributors

Distributor availability of LD2985BM28R

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LD2985BM50R
Available at distributors

Distributor availability of LD2985BM50R

Distributor Name
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Distributor reported inventory date:

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LD2985BM33R
Available at distributors

Distributor availability of LD2985BM33R

Distributor Name
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Distributor reported inventory date:

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LD2985BM18R
Available at distributors

Distributor availability of LD2985BM18R

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LD2985BM30R
Available at distributors

Distributor availability of LD2985BM30R

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

LD2985BM25R Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LD2985BM25R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

2.5

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Distributor Name

Distributor reported inventory date:

LD2985BM31R NRND

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LD2985BM31R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

3.1

Output Tolerance (typ):

1.5

Output Current (A) (nom):

0.15

LD2985BM28R NRND

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LD2985BM28R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

2.8

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Distributor Name

Distributor reported inventory date:

LD2985BM50R Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LD2985BM50R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

5

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Distributor Name

Distributor reported inventory date:

LD2985BM33R Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LD2985BM33R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Distributor Name

Distributor reported inventory date:

LD2985BM18R NRND

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LD2985BM18R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

1.8

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Distributor Name

Distributor reported inventory date:

LD2985BM30R Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

LD2985BM30R

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Output Voltage (V) (nom):

3

Output Tolerance (typ):

2.5

Output Current (A) (nom):

0.15

Distributor Name

Distributor reported inventory date:

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(*) 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