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  • The STMPS2141, STMPS2151, STMPS2161, STMPS2171 power distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. These devices incorporate 90 mΩ N-channel MOSFET high-side power switches for power distribution. These switches are controlled by a logic enable input.

    When the output load exceeds the current limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant current mode. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts the switch off to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until a valid input voltage is present.

    Key Features

    • 90 mΩ high-side MOSFET switch
    • 500/1000 mA continuous current
    • Thermal and short-circuit protection with overcurrent logic output
    • Operating range from 2.7 to 5.5 V
    • CMOS and TTL compatible enable input
    • Undervoltage lockout (UVLO)
    • 12 μA maximum standby supply current
    • Ambient temperature range, -40 to 85 °C
    • 8 kV ESD protection
    • Reverse current protection
    • Fault blanking
    • UL recognized components (UL file number: E354278)

Circuit Diagram

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STMicroelectronics - STMPS2161

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STMPS2161MTR
Active
SO-8 Industrial Ecopack3
STMPS2161STR
Active
SOT23-5L Industrial Ecopack3
STMPS2161TTR
Active
MSOP/TSSOP 8 Industrial Ecopack3

STMPS2161MTR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STMPS2161STR

Package:

SOT23-5L

Material Declaration**:

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STMPS2161TTR

Package:

MSOP/TSSOP 8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MSOP/TSSOP 8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) 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) Autoshutdown
Budgetary Price (US$)*/Qty
More info
min
max
STMPS2161STR Available at 7 distributors

Distributor availability ofSTMPS2161STR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1018 1 Order Now
COMPEL EUROPE 1932 1 Order Now
RS COMPONENTS EUROPE 8625 1 Order Now
ARROW EUROPE 12000 0 Order Now
MOUSER WORLDWIDE 3709 1 Order Now
Farnell Element14 EUROPE 8004 1 Order Now
ANGLIA Live EUROPE 3350 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

DIGIKEY

Stock

1018

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1932

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

8625

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

12000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3709

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8004

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3350

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-23

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 85 - 0.33 / 1k
MORE INFO

Unit Price (US$):

0.33

Country of Origin:

MALAYSIA

STMPS2161TTR Available at 1 distributors

Distributor availability ofSTMPS2161TTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 65 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

MOUSER

Stock

65

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

Buy Direct
Active
EAR99 NEC Tape And Reel MSOP/TSSOP 8 -40 85 - 0.4 / 1k
MORE INFO

Unit Price (US$):

0.4

Country of Origin:

MALAYSIA

STMPS2161MTR Available at 3 distributors

Distributor availability ofSTMPS2161MTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3149 1 Order Now
COMPEL EUROPE 601 1 Order Now
MOUSER WORLDWIDE 3459 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

DIGIKEY

Stock

3149

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

601

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

3459

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 85 - 0.34 / 1k
MORE INFO

Unit Price (US$):

0.34

Country of Origin:

CHINA

STMPS2161STR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.33 / 1k

Distributor availability ofSTMPS2161STR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1018 1 Order Now
COMPEL EUROPE 1932 1 Order Now
RS COMPONENTS EUROPE 8625 1 Order Now
ARROW EUROPE 12000 0 Order Now
MOUSER WORLDWIDE 3709 1 Order Now
Farnell Element14 EUROPE 8004 1 Order Now
ANGLIA Live EUROPE 3350 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

DIGIKEY

Stock

1018

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1932

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

8625

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

12000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3709

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8004

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3350

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

85

Autoshutdown

-

Budgetary Price (US$)* / Qty

0.33 / 1k

Country of Origin

MALAYSIA

STMPS2161TTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4 / 1k

Distributor availability ofSTMPS2161TTR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 65 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

MOUSER

Stock

65

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MSOP/TSSOP 8

Operating Temperature (°C)

(min)

-40

(max)

85

Autoshutdown

-

Budgetary Price (US$)* / Qty

0.4 / 1k

Country of Origin

MALAYSIA

STMPS2161MTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.34 / 1k

Distributor availability ofSTMPS2161MTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3149 1 Order Now
COMPEL EUROPE 601 1 Order Now
MOUSER WORLDWIDE 3459 1 Order Now

Distributor reported inventory date: 2020-11-23

Distributor Name

DIGIKEY

Stock

3149

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

601

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

3459

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

85

Autoshutdown

-

Budgetary Price (US$)* / Qty

0.34 / 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