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  • The A7985A is a step-down switching regulator with a 2.5 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 2 A current to the load depending on the application conditions.

    The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN.
    Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
    The HSOP8 package with exposed pad allows the reduction of Rth(JA) down to 40 °C/W.

    Key Features

    • AEC-Q100 qualified (see PPAP for more details)
    • 2 A DC output current
    • 4.5 V to 38 V input voltage
    • Output voltage adjustable from 0.6 V
    • 250 kHz switching frequency, programmable up to 1 MHz
    • Internal soft-start and enable
    • Low dropout operation: 100% duty cycle
    • Voltage feed-forward
    • Zero load current operation
    • Overcurrent and thermal protection
    • HSOP8 package

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CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A7985ATR
Active
PowerSO-8 Automotive Ecopack2

A7985ATR

Package:

PowerSO-8

Material Declaration**:

Marketing Status

Active

Package

PowerSO-8

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.

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

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

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
A7985ATR Available at 2 distributors

Distributor availability ofA7985ATR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 495 1 Order Now
Farnell Element14 EUROPE 2396 1 Order Now

Distributor reported inventory date: 2020-10-25

Distributor Name

MOUSER

Stock

495

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2396

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-25

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel PowerSO-8 - - PHILIPPINES 0.914 / 1k

A7985ATR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.914 / 1k

Distributor availability ofA7985ATR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 495 1 Order Now
Farnell Element14 EUROPE 2396 1 Order Now

Distributor reported inventory date: 2020-10-25

Distributor Name

MOUSER

Stock

495

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2396

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

0.914 / 1k

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