STLQ50

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50mA, 3µA Supply current low drop linear regulator

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  • The STLQ50 is a BiCMOS linear regulator specifically designed for operating in environments where very low power consumption is required.

    Its very low quiescent current (3 μA) results in extended battery life, making the device suitable for applications which have very long standby time.
    The PMOS pass element allows very good dropout values (200 mV at 25 mA IO and 350 mV at full load) without affecting the consumption characteristics.
    Housed in the very small SOT323-5L, it meets space-saving requirements in battery-powered equipment.

    Key Features

    • 2.3 V to 12 V input voltage range
    • 50 mA maximum output current
    • 3 μA quiescent current
    • Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V and adjustable voltage
    • 200 mV dropout voltage at 25 mA output current
    • Internal thermal protection
    • Available in SOT323-5L package

Circuit Diagram

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Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
ECCN (US)
More info
Approximate Price (US$)* / Qty
Order from ST
Order from Distributors
STLQ50C25R SOT323-5L Tape And Reel 2.5 2 0.05
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.62 / 1k Buy now Check Availability

Distributor availability ofSTLQ50C25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 784 1 Order Now
MOUSER WORLDWIDE 2952 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

784

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2952

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-03-30

STLQ50C-R SOT323-5L Tape And Reel - 2 0.05
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.62 / 1k Buy now Check Availability

Distributor availability ofSTLQ50C-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5911 1 Order Now
COMPEL EUROPE 7 1 Order Now
Newark Element14 AMERICA 693 0 Order Now
MOUSER WORLDWIDE 4731 1 Order Now
Farnell Element14 EUROPE 493 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

5911

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

7

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

693

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4731

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

493

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STLQ50C18R SOT323-5L Tape And Reel 1.8 2 0.05
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.62 / 1k Buy now Check Availability

Distributor availability ofSTLQ50C18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 789 1 Order Now
ANGLIA Live EUROPE 2930 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

MOUSER

Stock

789

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

2930

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STLQ50C50R SOT323-5L Tape And Reel 5 2 0.05
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.65 / 1k Buy now Check Availability

Distributor availability ofSTLQ50C50R

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 2245 1 Order Now
Farnell Element14 EUROPE 5985 1 Order Now
ANGLIA Live EUROPE 2400 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

ARROW

Stock

2245

Min.Order

1

Region

AMERICA Order Now

Farnell Element14

Stock

5985

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2400

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STLQ50C33R SOT323-5L Tape And Reel 3.3 2 0.05
Active
EAR99
MORE INFO

Country of Origin:

MALAYSIA

0.62 / 1k Buy now Check Availability

Distributor availability ofSTLQ50C33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 338 1 Order Now
ARROW EUROPE 291000 0 Order Now
Newark Element14 AMERICA 55 0 Order Now
ARROW AMERICA 37 1 Order Now
MOUSER WORLDWIDE 4890 1 Order Now
Farnell Element14 EUROPE 2882 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

338

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

291000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

55

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

37

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

4890

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2882

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STLQ50C25R

Package

SOT323-5L

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.62 / 1k

Distributor availability ofSTLQ50C25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 784 1 Order Now
MOUSER WORLDWIDE 2952 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

784

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

2952

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-03-30

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.62 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STLQ50C-R

Package

SOT323-5L

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.62 / 1k

Distributor availability ofSTLQ50C-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5911 1 Order Now
COMPEL EUROPE 7 1 Order Now
Newark Element14 AMERICA 693 0 Order Now
MOUSER WORLDWIDE 4731 1 Order Now
Farnell Element14 EUROPE 493 1 Order Now
ANGLIA Live EUROPE 3000 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

5911

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

7

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

693

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4731

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

493

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.62 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STLQ50C18R

Package

SOT323-5L

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.62 / 1k

Distributor availability ofSTLQ50C18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 789 1 Order Now
ANGLIA Live EUROPE 2930 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

MOUSER

Stock

789

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

2930

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.62 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STLQ50C50R

Package

SOT323-5L

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.65 / 1k

Distributor availability ofSTLQ50C50R

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 2245 1 Order Now
Farnell Element14 EUROPE 5985 1 Order Now
ANGLIA Live EUROPE 2400 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

ARROW

Stock

2245

Min.Order

1

Region

AMERICA Order Now

Farnell Element14

Stock

5985

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2400

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.65 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STLQ50C33R

Package

SOT323-5L

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

0.62 / 1k

Distributor availability ofSTLQ50C33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 338 1 Order Now
ARROW EUROPE 291000 0 Order Now
Newark Element14 AMERICA 55 0 Order Now
ARROW AMERICA 37 1 Order Now
MOUSER WORLDWIDE 4890 1 Order Now
Farnell Element14 EUROPE 2882 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

338

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

291000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

55

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

37

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

4890

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2882

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.62 / 1k

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
      DS5107
      50 mA, 3 µA supply current low drop linear regulator
      7.0
      456.1 KB
      PDF
      DS5107

      50 mA, 3 µA supply current low drop linear regulator

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
      1.78 MB
      PDF
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      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**
STLQ50C-R
Active
SOT323-5L Industrial Ecopack2
STLQ50C18R
Active
SOT323-5L Industrial Ecopack2
STLQ50C25R
Active
SOT323-5L Industrial Ecopack2
STLQ50C33R
Active
SOT323-5L Industrial Ecopack2
STLQ50C50R
Active
SOT323-5L Industrial Ecopack2

STLQ50C-R

Package:

SOT323-5L

Material Declaration**:

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ50C18R

Package:

SOT323-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ50C25R

Package:

SOT323-5L

Material Declaration**:

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ50C33R

Package:

SOT323-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT323-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STLQ50C50R

Package:

SOT323-5L

Material Declaration**:

Marketing Status

Active

Package

SOT323-5L

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.

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