A6986

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

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  • 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.

    Key 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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Related Applications

Smart Farming

ADAS

Electro Mobility

In-Vehicle Infotainment(IVI)

Evaluation Tools

    • Part Number

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

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Technical Documentation

    • Description Version Size Action
      DS10294
      38 V, 2 A synchronous step-down switching regulator with 30 µA quiescent current
      7.0
      5.02 MB
      PDF
      DS10294

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

    • Description Version Size Action
      TN1224
      Mounting instructions for SMD (surface mounting device) packages
      2.2
      1.06 MB
      PDF
      TN1224

      Mounting instructions for SMD (surface mounting device) packages

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      A6986 Pspice model
      338.57 KB
      ZIP

      A6986 Pspice model

Publications and Collaterals

    • Description Version Size Action
      A698x family High-performance automotive synchronous DC-DC converters 1.0
      1.13 MB
      PDF

      A698x family High-performance automotive synchronous DC-DC converters

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF

      Electric vehicle (EV) ecosystem

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A6986
Active
HTSSOP16 Automotive Ecopack2
A6986TR
Active
HTSSOP16 Automotive Ecopack2

A6986

Package:

HTSSOP16

Material Declaration**:

PDF XML

Marketing Status

Active

Package

HTSSOP16

Grade

Automotive

RoHS Compliance Grade

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.

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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.

Sample & Buy

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Budgetary Price (US$)*/Qty
A6986 Available at 1 distributors

Distributor availability ofA6986

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2360 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

MOUSER

Stock

2360

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-02

Buy now HTSSOP16 Tube
Active
EAR99 PHILIPPINES 1.688 / 1k
A6986TR Available at 3 distributors

Distributor availability ofA6986TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1930 1 Order Now
ARROW EUROPE 32500 0 Order Now
MOUSER WORLDWIDE 2400 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

DIGIKEY

Stock

1930

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

32500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2400

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-02

Get sample HTSSOP16 Tape And Reel
Active
EAR99 PHILIPPINES 1.688 / 1k

A6986

Package

HTSSOP16

Packing Type

Tube

Budgetary Price (US$)*/Qty

1.688 / 1k

Distributor availability ofA6986

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 2360 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

MOUSER

Stock

2360

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-02

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.688 / 1k

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

A6986TR

Package

HTSSOP16

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.688 / 1k

Distributor availability ofA6986TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1930 1 Order Now
ARROW EUROPE 32500 0 Order Now
MOUSER WORLDWIDE 2400 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

DIGIKEY

Stock

1930

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

32500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2400

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-02

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.688 / 1k

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 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