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In a boost DC-DC converter, the output voltage is higher than the input voltage including in a floating boost topology where the output does not share the reference point with the input.

Boost DC-DC topologies are often used in battery-operated equipment to generate supply rails higher than the battery voltage. These designs require high-efficiency and ultra-low stand-by current as well as a small size to fit the requirements for portable and wearable devices for the Internet of Things (IoT).

Part Number
Description
STEVAL-ISA077V2 High efficiency synchronous rectifier step-up converter demonstration board based on the L6920D Quick view

Key Features

  • 0.6 V to 5.5 V operating input voltage
  • 1 V startup input voltage
  • Internal synchronous rectifier
  • Zero shutdown current
  • 3.3 V and 5 V fixed or adjustable
  • Output voltage (2 V up to 5.2 V)
  • 120 mΩ internal active switch
  • Low battery voltage detection
  • Reverse battery protection
  • RoHS compliant

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FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-ISA077V1 High efficiency synchronous rectifier step-up converter demonstration board based on the L6920DB Quick view

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

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
Part Number
STEVAL-ISA077V2

High efficiency synchronous rectifier step-up converter demonstration board based on the L6920D

Key Features

  • 0.6 V to 5.5 V operating input voltage
  • 1 V startup input voltage
  • Internal synchronous rectifier
  • Zero shutdown current
  • 3.3 V and 5 V fixed or adjustable
  • Output voltage (2 V up to 5.2 V)
  • 120 mΩ internal active switch
  • Low battery voltage detection
  • Reverse battery protection
  • RoHS compliant

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
STEVAL-ISA077V1

High efficiency synchronous rectifier step-up converter demonstration board based on the L6920DB

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

Show More

IMAGE

Image
Image

FEATURED RESOURCES

Schematics BOM Gerber
00 Files selected for download

Technical Documentation

    • Description Version Size Action
      AN1768
      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES
      1.1
      46.82 KB
      PDF
      AN2025
      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION
      1.1
      147.59 KB
      PDF
      AN604
      Calculation of conduction losses in a power rectifier
      3.2
      137.74 KB
      PDF
      AN4021
      Calculation of reverse losses in a power diode
      1.0
      120.47 KB
      PDF
      AN5028
      Calculation of turn-off power losses generated by a ultrafast diode
      1.0
      1.68 MB
      PDF
      AN4381
      Current sharing in parallel diodes
      1.0
      449.12 KB
      PDF
      AN1941
      Low Voltage LED Driver Using L6920D, L4971 and L6902D
      1.5
      499.38 KB
      PDF
      AN1453
      NEW FAMILY OF 150V POWER SCHOTTKY
      1.1
      131.48 KB
      PDF
      AN4391
      New P-channel trench technology from ST for low power DC-DC conversions and load switching applications
      1.0
      1.6 MB
      PDF
      AN5046
      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages
      4.0
      4.82 MB
      PDF
      AN5088
      Rectifiers thermal management, handling and mounting recommendations
      2.0
      2.32 MB
      PDF
      AN533
      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting
      3.6
      217.19 KB
      PDF
      AN443
      SERIES OPERATION ON FAST RECTIFIERS
      2.1
      202.48 KB
      PDF
      AN2627
      ST8R00 syncronous boost converter with output current cut-off function
      2.1
      327.21 KB
      PDF
      AN1542
      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION
      1.1
      57.47 KB
      PDF
      AN869
      Tj max limit of Schottky diodes
      2.2
      60.9 KB
      PDF
      AN1768

      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES

      AN2025

      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION

      AN604

      Calculation of conduction losses in a power rectifier

      AN4021

      Calculation of reverse losses in a power diode

      AN5028

      Calculation of turn-off power losses generated by a ultrafast diode

      AN4381

      Current sharing in parallel diodes

      AN1941

      Low Voltage LED Driver Using L6920D, L4971 and L6902D

      AN1453

      NEW FAMILY OF 150V POWER SCHOTTKY

      AN4391

      New P-channel trench technology from ST for low power DC-DC conversions and load switching applications

      AN5046

      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages

      AN5088

      Rectifiers thermal management, handling and mounting recommendations

      AN533

      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting

      AN443

      SERIES OPERATION ON FAST RECTIFIERS

      AN2627

      ST8R00 syncronous boost converter with output current cut-off function

      AN1542

      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION

      AN869

      Tj max limit of Schottky diodes

    • Description Version Size Action
      DN0010
      Adapting ST power line modem evaluation boards to communicate over a DC bus
      1.2
      404.54 KB
      PDF
      DN0013
      Very low-noise, high-efficiency DC-DC conversion circuit
      1.1
      308.29 KB
      PDF
      DN0010

      Adapting ST power line modem evaluation boards to communicate over a DC bus

      DN0013

      Very low-noise, high-efficiency DC-DC conversion circuit

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description Version Size Action
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      Switching Converters (DC-DC) – Quick Reference Guide

Development Tools

    • Part Number

      Diode product finder application for Android and iOS

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 Power

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

Power Management

Part number Description
L6920 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
ST8R00 MICROPOWER STEP UP DC/DC CONVERTER
Part number
1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
MICROPOWER STEP UP DC/DC CONVERTER
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