500 mA, 6 MHz synchronous step-down converter

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  • The ST1S15 is a high efficiency miniaturized step-down converter able to provide 500 mA output current from an input voltage from 2.3 V to 5.5 V. This converter is specifically designed for applications where high efficiency and small application area are the key factors. Thanks to 6 MHz switching frequency, the ST1S15 can use 470 nH nominal values for the inductor and 4.7 µF for the output capacitor providing, at the same time, very good performance in terms of load and line transients. A PFM mode can be selected for high efficiency under light load conditions or PWM mode for tight regulation and best dynamic performance. Short-circuit and thermal protection are also included.

    Key Features

    • 85% typical efficiency
    • 500 mA output current capability
    • 45 µA typical quiescent current
    • PFM or PWM operation for best efficiency over whole load range
    • Ultra-fast load and line transient
    • Short-circuit and thermal protection
    • Small external components
    • Auto or forced PWM selection with dedicated pin
    • Available in Flip Chip 6 package

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Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
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ST1S15J18R Chip Scale Package 0.4mm pitch Tape And Reel
Active
0.716 10000 EAR99 CHINA Check Availability

Distributor availability ofST1S15J18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4901 1 Order Now
FUTURE WORLDWIDE 5000 5000 Order Now
MOUSER WORLDWIDE 4915 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

4901

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

5000

Min.Order

5000

Region

WORLDWIDE Order Now

MOUSER

Stock

4915

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-16

Get sample

ST1S15J18R

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Unit Price (US$)

0.716*

Distributor availability ofST1S15J18R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4901 1 Order Now
FUTURE WORLDWIDE 5000 5000 Order Now
MOUSER WORLDWIDE 4915 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

4901

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

5000

Min.Order

5000

Region

WORLDWIDE Order Now

MOUSER

Stock

4915

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-09-16

Marketing Status

Active

Unit Price (US$)

0.716

Quantity

10000

ECCN (US)

EAR99

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

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Technical Documentation

    • Description Version Size Action
      DS9081
      500 mA, 6 MHz synchronous step-down converter
      4.0
      1.39 MB
      PDF
      DS9081

      500 mA, 6 MHz synchronous step-down converter

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST1S15J18R
Active
Chip Scale Package 0.4mm pitch Industrial Ecopack2

ST1S15J18R

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

Marketing Status

Active

Package

Chip Scale Package 0.4mm pitch

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.