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STEVAL-ISA188V1

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38 V, 1.5 A synchronous step-down switching regulator evaluation board based on A6986F3V3

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Product overview

Description

The STEVAL-ISA188V1 is a product evaluation board based on the ST synchronous step-down switching regulator A6986F3V3, which can deliver up to 1.5 A and, with its 100% duty cycle ability to withstand cold crank events and wide input operating voltage range, represents 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 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 30 μA that ensures high efficiency under light load, which is a requirement in typical car body applications that are active when a 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, 500 kHz 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.

  • All features

    • AECQ100 qualification
    • 1.5 A DC output current
    • 4 V to 38 V operating input voltage
    • Low consumption mode or low noise mode
    • Programmable ISKIP current
    • 30 μA IQ at light load (LCM VIN = 12 V)
    • 8 μA IQ-SHTDWN
    • Adjustable fSW (250 kHz - 2 MHz)
    • Fixed output voltage VOUT= 3.3 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 = 180 mΩ; RDS(on)LS = 150 mΩ
    • Thermal shutdown
    • RoHS compliant
    Read more Read less

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All resources

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Resource title
Version
Latest update

MCSDK Board Description (1)

Resource title
Version
Latest update
STEVAL-ISA188V1 gerber files
1.0 24 Feb 2016
24 Feb 2016
STEVAL-ISA188V1 gerber files 1.0

Bill of Materials (1)

Resource title
Version
Latest update
STEVAL-ISA188V1 BOM
1.0 24 Feb 2016
24 Feb 2016
STEVAL-ISA188V1 BOM 1.0

Schematic Pack (1)

Resource title
Version
Latest update
STEVAL-ISA188V1 schematic
1.0 24 Feb 2016
24 Feb 2016
STEVAL-ISA188V1 schematic 1.0

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Longevity Commitment Longevity Starting Date Material Declaration**
STEVAL-ISA188V1
Active
CARD Industrial Ecopack2 - - -

STEVAL-ISA188V1

Package:

CARD

Material Declaration**:

More Info

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.

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

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