38 V, 0.5 A synchronous step-down switching regulator evaluation board based on A6985F5V

Download databrief

Order from our eStore and our distributors

Buy now
Overview
Tools & Software
Resources
Solutions
Quality & Reliability
Sales Briefcase
eDesignSuite
Get Started
Sample & Buy
Partner products
  • The STEVAL-ISA186V1 is a product evaluation board based on the A6985F5V ST synchronous step-down switching regulator, which can deliver up to 0.5 A and, with its 100% duty cycle ability to withstand cold crank events and wide input operating voltage range, renders the A6985F5V the ideal choice for battery-powered automotive systems. Synchronous rectification helps achieve higher efficiency at full load as well as application compactness, while high-frequency switching (programmable up to 2 MHz) helps to reduce the cost and size of power passive components while remaining outside the AM band. The device can operate in low consumption mode (LCM) with a quiescent current of 45 μA, hence ensuring the high efficiency under light load condition required in typical car body applications that are active when the car is parked. A low noise mode (LNM) can be selected to meet the requirements of infotainment applications with forced PWM mode under all load conditions. The default board configuration is LCM active, 2 MHz switching frequency, high ISKIP current and the switchover feature enabled, but all of these settings can be easily changed so the user can evaluate different application scenarios.

    Key Features

    • AECQ100 qualification
    • 0.5 A DC output current
    • 4 V to 38 V operating input voltage
    • Low consumption mode or low noise mode
    • Programmable ISKIP current
    • 45 μA IQ at light load (LCM VIN = 12 V)
    • 8 μA IQ-SHTDWN
    • Adjustable fSW (250 kHz - 2 MHz)
    • Fixed output voltage VOUT = 5 V
    • Embedded output voltage supervisor
    • Synchronization
    • Adjustable soft-start time
    • Internal current limiting
    • Overvoltage protection
    • Output voltage sequencing
    • Peak current mode architecture
    • RDS(on)HS = 360 mΩ; RDS(on)LS = 150 mΩ
    • Thermal shutdown
    • RoHS compliant

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Board production status
Order from Distributors
Order from ST
STEVAL-ISA186V1 A6985F5V
Active
26.0 1 EAR99 ITALY - Check Availability

Distributor availability ofSTEVAL-ISA186V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 25 1 Order Now
MOUSER WORLDWIDE 3 1 Order Now

Distributor reported inventory date: 2019-10-21

Distributor Name

DIGIKEY

Stock

25

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-10-21

Buy now

STEVAL-ISA186V1

Core Product

A6985F5V

Marketing Status

Active

Unit Price (US$)

26.0*

Distributor availability ofSTEVAL-ISA186V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 25 1 Order Now
MOUSER WORLDWIDE 3 1 Order Now

Distributor reported inventory date: 2019-10-21

Distributor Name

DIGIKEY

Stock

25

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-10-21

Unit Price (US$)

26

Quantity

1

ECCN (US)

EAR99

Country of Origin

ITALY

Board production status

-

(*) 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

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB2820
      38 V, 0.5 A synchronous step-down switching regulator evaluation board based on A6985F5V
      1.0
      228.52 KB
      PDF
      DB2820

      38 V, 0.5 A synchronous step-down switching regulator evaluation board based on A6985F5V

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA186V1 gerber files 1.0
      1.36 MB
      ZIP

      STEVAL-ISA186V1 gerber files

    • Description Version Size Action
      STEVAL-ISA186V1 BOM 1.0
      10.17 KB
      PDF

      STEVAL-ISA186V1 BOM

    • Description Version Size Action
      STEVAL-ISA186V1 schematic 1.0
      47.41 KB
      PDF

      STEVAL-ISA186V1 schematic

Publications and Collaterals

    • Description Version Size Action
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA186V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA186V1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

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.