Very low drop voltage regulators with inhibit

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  • The LD2979 is a very low drop regulator available in SOT23-5L.

    The very low drop-voltage and the very low quiescent current make them particularly suitable for low noise, low power applications and in battery powered systems.
    Shutdown logic control function is available on five pin version (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.

    Key Features

    • Very low dropout voltage (0.2 V typ. at 50 mA load)
    • Very low quiescent current (typ. 500 μA at 50 mA load)
    • Output current up to 50 mA
    • Logic-controlled electronic shutdown
    • Output voltages of 3.0 and 3.3 V
    • Internal current and thermal limit
    • Supply voltage rejection: 63 dB (typ)
    • Only 1 μF for stability
    • Temperature range: -25 °C to 125 °C
    • Package available: SOT23-5L

Sample & Buy

Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
Budgetary Price (US$)*
Quantity
More info
Order from Distributors
Order from ST
LD2979M30TR SOT23-5L Tape And Reel 3 2 0.05
Active
0.224 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office Buy now
LD2979M33TR SOT23-5L Tape And Reel 3.3 2 0.05
Active
0.224 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofLD2979M33TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5363 1 Order Now
MOUSER WORLDWIDE 5615 1 Order Now
Farnell Element14 EUROPE 2743 1 Order Now
RUTRONIK EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

5363

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5615

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2743

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now

LD2979M30TR

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.224*

Output Voltage (V) (nom)

3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Marketing Status

Active

Unit Price (US$)

0.224

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LD2979M33TR

Package

SOT23-5L

Packing Type

Tape And Reel

Unit Price (US$)

0.224*

Distributor availability ofLD2979M33TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5363 1 Order Now
MOUSER WORLDWIDE 5615 1 Order Now
Farnell Element14 EUROPE 2743 1 Order Now
RUTRONIK EUROPE 3000 3000 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

5363

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5615

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2743

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

3000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Marketing Status

Active

Unit Price (US$)

0.224

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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

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Technical Documentation

    • Description Version Size Action
      DS1320
      Very low drop voltage regulators with inhibit
      15.0
      288.55 KB
      PDF
      DS1320

      Very low drop voltage regulators with inhibit

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description Version Size Action
      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide 2.0
      216.23 KB
      PDF
      Power management for handheld and portable 2.0
      1.09 MB
      PDF

      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide

      Power management for handheld and portable

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LD2979M30TR
Active
SOT23-5L Industrial Ecopack2
LD2979M33TR
Active
SOT23-5L Industrial Ecopack2

LD2979M30TR

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LD2979M33TR

Package:

SOT23-5L

Material Declaration**:

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.