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  • The ST1S14 is a step-down monolithic power switching regulator able to deliver up to 3 A DC current to the load depending on the application conditions. The high current level is also achieved thanks to a HSOP8 package with exposed frame, that allows to reduce the Rth(JA)down to approximately 40 °C/W. The output voltage can be set from 1.22 V. The device uses an internal N-channel DMOS transistor (with a typical RDS(on)of 200 mΩ) as the switching element to minimize the size of the external components. The internal oscillator fixes the switching frequency at 850 kHz. Power good open collector output validates the regulated output voltage as soon as it reaches the regulation. Pulse-by-pulse current limit offers an effective constant current short-circuit protection. Current foldback decreases overstress in a persistent short-circuit condition.

    Key Features

    • 3 A DC output current
    • Operating input voltage from 5.5 V to 48 V
    • 850 kHz internally fixed switching frequency
    • Internal soft-start
    • Power good open collector output
    • Current mode architecture
    • Embedded compensation network
    • Zero load current operation
    • Internal current limiting
    • Inhibit for zero current consumption
    • 2 mA maximum quiescent current over temperature range
    • 250 mΩ typ. RDS(on)
    • Thermal shutdown

Circuit Diagram

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    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-ISA095V1

      Active

      Up to 3 A step-down switching regulator based on the ST1S14

      PSU and Converter Solution Eval Boards ST
      STEVAL-ISA095V1

      Description:

      Up to 3 A step-down switching regulator based on the ST1S14

CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST1S14PHR
Active
PowerSO-8 Industrial Ecopack2

ST1S14PHR

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-8

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.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output

V This option is required and must be a number.
A This option is required and must be a number.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
ST1S14PHR Available at 10 distributors

Distributor availability ofST1S14PHR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12968 1 Order Now
COMPEL EUROPE 69327 1 Order Now
RS COMPONENTS EUROPE 3440 5 Order Now
AVNET AMERICA 2500 0 Order Now
FUTURE WORLDWIDE 40472 1 Order Now
ARROW EUROPE 10100 0 Order Now
Newark Element14 AMERICA 50 0 Order Now
MOUSER WORLDWIDE 4559 1 Order Now
Farnell Element14 EUROPE 3743 1 Order Now
RUTRONIK EUROPE 2500 2500 Order Now

Distributor reported inventory date: 2020-10-20

Distributor Name

DIGIKEY

Stock

12968

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

69327

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3440

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

40472

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

10100

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

50

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4559

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3743

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

2500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-20

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel PowerSO-8 - - PHILIPPINES 0.761 / 1k

ST1S14PHR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.761 / 1k

Distributor availability ofST1S14PHR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12968 1 Order Now
COMPEL EUROPE 69327 1 Order Now
RS COMPONENTS EUROPE 3440 5 Order Now
AVNET AMERICA 2500 0 Order Now
FUTURE WORLDWIDE 40472 1 Order Now
ARROW EUROPE 10100 0 Order Now
Newark Element14 AMERICA 50 0 Order Now
MOUSER WORLDWIDE 4559 1 Order Now
Farnell Element14 EUROPE 3743 1 Order Now
RUTRONIK EUROPE 2500 2500 Order Now

Distributor reported inventory date: 2020-10-20

Distributor Name

DIGIKEY

Stock

12968

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

69327

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3440

Min.Order

5

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

40472

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

10100

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

50

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4559

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3743

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

2500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-20

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.761 / 1k

Country of Origin

PHILIPPINES

(*) 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