ST Life.augmented


1.82 V - 500 mA, 6 MHz synchronous step-down converter based on the ST1S15
  • active Active

The STEVAL-ISA131V3 is a product evaluation board designed around the ST1S15, a high-efficiency miniaturized step-down converter able to provide 500 mA output current from an input voltage of 2.3 V to 5.5 V.

The converter operates at a switching frequency of 6 MHz and is specifically designed for applications where high efficiency and small application areas are key factors.

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Data Brief

Key Features

  • 85% typical efficiency
  • 500 mA output current capability
  • 45 µA typical quiescent current
  • PFM or PWM operation for best efficiency over the entire load range
  • Ultra-fast load and line transients
  • Short-circuit and thermal protection
  • Tiny external components
  • Auto or forced PWM selection using a dedicated pin
  • ST1S15TPUR in DFN6 (2 x 2 mm)
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB2045: 1.82 V - 500 mA, 6 MHz synchronous step-down converter based on the ST1S15
1.0 100 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-ISA131V3 gerber files
1.0 76 KB

Bill of Materials

Description Version Size
1.0 1,916 KB

Schematic Pack

Description Version Size
STEVAL-ISA131V3 schematics
1.0 87 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA131V3ActiveST1S15Buy Direct26.95Distributor reported inventory date: 2015-08-29
Distributor NameRegionStockMin. order

(*) 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
(**) The Material Declaration forms available on 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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