STLQ50

Active

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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Quality and Reliability

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.

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
STLQ50C25R Available at 3 distributors

Distributor availability ofSTLQ50C25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4333 1 Order Now
MOUSER WORLDWIDE 1485 1 Order Now
Farnell Element14 EUROPE 6000 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

DIGIKEY

Stock

4333

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1485

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

Buy Direct
Active
EAR99 NEC Tape And Reel SOT323-5L -40 150 2.5 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.05

Unit Price (US$):

0.298

Country of Origin:

MALAYSIA

STLQ50C-R Available at 5 distributors

Distributor availability ofSTLQ50C-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 24563 1 Order Now
Newark Element14 AMERICA 652 0 Order Now
MOUSER WORLDWIDE 1225 1 Order Now
Farnell Element14 EUROPE 263 1 Order Now
ANGLIA Live EUROPE 2970 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

DIGIKEY

Stock

24563

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

652

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1225

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

263

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2970

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

Buy Direct
Active
EAR99 NEC Tape And Reel SOT323-5L -40 150 - 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.05

Unit Price (US$):

0.298

Country of Origin:

MALAYSIA

STLQ50C18R Available at 2 distributors

Distributor availability ofSTLQ50C18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 763 1 Order Now
ANGLIA Live EUROPE 2930 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

MOUSER

Stock

763

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

2930

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

Buy Direct
Active
EAR99 NEC Tape And Reel SOT323-5L -40 150 1.8 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.05

Unit Price (US$):

0.298

Country of Origin:

MALAYSIA

STLQ50C50R Available at 3 distributors

Distributor availability ofSTLQ50C50R

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 2153 1 Order Now
Farnell Element14 EUROPE 5854 1 Order Now
ANGLIA Live EUROPE 2400 1 Order Now

Distributor reported inventory date: 2021-01-16

Distributor Name

ARROW

Stock

2153

Min.Order

1

Region

AMERICA Order Now

Farnell Element14

Stock

5854

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2400

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-16

Buy Direct
Active
EAR99 NEC Tape And Reel SOT323-5L -40 150 5 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.05

Unit Price (US$):

0.298

Country of Origin:

MALAYSIA

STLQ50C33R Available at 7 distributors

Distributor availability ofSTLQ50C33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5422 1 Order Now
FUTURE WORLDWIDE 3000 3000 Order Now
ARROW EUROPE 195000 0 Order Now
Newark Element14 AMERICA 55 0 Order Now
ARROW AMERICA 120010 1 Order Now
MOUSER WORLDWIDE 4281 1 Order Now
Farnell Element14 EUROPE 810 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

DIGIKEY

Stock

5422

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

3000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

195000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

55

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

120010

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

4281

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

810

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

Buy Direct
Active
EAR99 NEC Tape And Reel SOT323-5L -40 150 3.3 0.298 / 1k
MORE INFO

Output Tolerance (typ):

2

Output Current (A) (nom):

0.05

Unit Price (US$):

0.298

Country of Origin:

MALAYSIA

STLQ50C25R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofSTLQ50C25R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4333 1 Order Now
MOUSER WORLDWIDE 1485 1 Order Now
Farnell Element14 EUROPE 6000 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

DIGIKEY

Stock

4333

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1485

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT323-5L

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

MALAYSIA

STLQ50C-R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofSTLQ50C-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 24563 1 Order Now
Newark Element14 AMERICA 652 0 Order Now
MOUSER WORLDWIDE 1225 1 Order Now
Farnell Element14 EUROPE 263 1 Order Now
ANGLIA Live EUROPE 2970 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

DIGIKEY

Stock

24563

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

652

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1225

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

263

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2970

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT323-5L

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

-

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

MALAYSIA

STLQ50C18R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofSTLQ50C18R

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 763 1 Order Now
ANGLIA Live EUROPE 2930 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

MOUSER

Stock

763

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

2930

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT323-5L

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

MALAYSIA

STLQ50C50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofSTLQ50C50R

Distributor Name
Region Stock Min. Order Third party link
ARROW AMERICA 2153 1 Order Now
Farnell Element14 EUROPE 5854 1 Order Now
ANGLIA Live EUROPE 2400 1 Order Now

Distributor reported inventory date: 2021-01-16

Distributor Name

ARROW

Stock

2153

Min.Order

1

Region

AMERICA Order Now

Farnell Element14

Stock

5854

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

2400

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-16

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT323-5L

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Budgetary Price (US$)* / Qty

0.298 / 1k

Country of Origin

MALAYSIA

STLQ50C33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.298 / 1k

Distributor availability ofSTLQ50C33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5422 1 Order Now
FUTURE WORLDWIDE 3000 3000 Order Now
ARROW EUROPE 195000 0 Order Now
Newark Element14 AMERICA 55 0 Order Now
ARROW AMERICA 120010 1 Order Now
MOUSER WORLDWIDE 4281 1 Order Now
Farnell Element14 EUROPE 810 1 Order Now

Distributor reported inventory date: 2021-01-17

Distributor Name

DIGIKEY

Stock

5422

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

3000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

195000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

55

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

120010

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

4281

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

810

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-17

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT323-5L

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.05

Budgetary Price (US$)* / Qty

0.298 / 1k

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