A6986

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38 V, 2 A synchronous step-down switching regulator with 30 µA quiescent current

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Product overview

Description

The A6986 device is a step-down monolithic switching regulator able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.85 V to VIN. The 100% duty cycle capability to withstand the cold crank event and the wide input voltage range make the A6986 device ideal for battery powered automotive systems. The “Low Consumption Mode” (LCM) is designed for applications active during car parking, so it maximizes the efficiency at the light-load with the controlled output voltage ripple. The “Low Noise Mode” (LNM) makes the switching frequency constant and minimizes the output voltage ripple overload current range, meeting the low noise application specification like car audio. The output voltage supervisor manages the reset phase for any digital load (μC, FPGA). The RST open collector output can also implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at the medium - heavy load, and the high switching frequency capability makes the size of the application compact. Pulse-by-pulse current sensing on both power elements implements effective constant current protection.
  • All features

    • AECQ100 qualification
    • 2 A DC output current
    • 4 V to 38 V operating input voltage
    • Low consumption mode or low noise mode
    • 30 μA IQ at light-load (LCM VOUT = 3.3 V)
    • 8 μA IQ-SHTDWN
    • Adjustable fSW (250 kHz - 2 MHz)
    • Output voltage adjustable from 0.85 V to VIN
    • Embedded output voltage supervisor
    • Synchronization
    • Adjustable soft-start time
    • Internal current limiting
    • Overvoltage protection
    • Output voltage sequencing
    • Peak current mode architecture
    • RDSON HS = 180 mΩ, RDSON LS = 150 mΩ
    • Thermal shutdown

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All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-ISA158V1

      Active

      38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986

      DC-DC Converter ST
      STEVAL-ISA158V1

      Description:

      38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986

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STMicroelectronics - A6986

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A6986TR
Active
HTSSOP16 Automotive Ecopack2

A6986TR

Package:

HTSSOP16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

HTSSOP16

Grade

Automotive

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.

Sample & Buy

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Part Number
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ECCN (US)
ECCN (EU)
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Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
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max
A6986TR No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel HTSSOP16 - - PHILIPPINES

A6986TR Active

Package:
HTSSOP16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

A6986TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

PHILIPPINES

No availability of distributors reported, please contact our sales office
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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