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High efficiency synchronous rectifier step-up converter demonstration board based on the L6920DB
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The STEVAL-ISA077V1 demonstration board is based on the L6920DB which is a high efficiency monolithic step-up switching converter IC especially designed for battery powered applications, thanks to its minimum startup of 0.8 V, and a minimum operating voltage of 0.6 V.

It requires only three external components to realize the conversion from battery voltage to the selected output voltage.

It has a minimum output voltage of 1.8 V, which is enough to supply even the most advanced ASICs and microprocessors.

The high switching frequency allows the user to choose small inductors and output capacitors for their designs. Supervisory functions include reference voltage, low battery detection, and shutdown, which are provided with overcurrent protection.

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Data Brief

Key Features

  • Up to 5.5 V operating input voltage
  • Internal synchronous rectifier
  • Adjustable output voltage from 1.8 V
  • 3.3 V and 5 V fixed output voltages
  • Low battery voltage detection
  • Reverse battery protection
  • 750 mA input current limit
  • Switching frequency up to 1 MHz
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1179: High efficiency synchronous rectifier step-up converter demonstration board based on the L6920DB
1.1 89 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
Gerber files for STEVAL-ISA077V1
1.0 234 KB

Bill of Materials

Description Version Size
Bill of materials for STEVAL-ISA077V1
1.0 8 KB

Schematic Pack

Description Version Size
Board schematics for STEVAL-ISA077V1
1.0 26 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA077V1ActiveL6920DBBuy Direct31.85Distributor reported inventory date: 2016-02-13
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20

(*) 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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