L7985

Active

2 A step-down switching regulator

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Product overview

Description

The L7985/A 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 DFN and the HSOP packages with exposed pad allow the reduction of RthJAdown to 60 °C/W and 40 °C/W respectively.
  • All features

    • 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
    • VFDFPN 3x3 - 10L and HSOP8 package

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Related Applications

Industrial

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-ISA097V1

      Active

      2 A step-down switching demonstration board based on the L7985 in DFN10 package

      DC-DC Converter --
      STEVAL-ISA097V1

      Description:

      2 A step-down switching demonstration board based on the L7985 in DFN10 package

      STEVAL-ISA098V1

      Active

      2 A step-down switching demonstration board based on the L7985A in HSOP8 package

      DC-DC Converter --
      STEVAL-ISA098V1

      Description:

      2 A step-down switching demonstration board based on the L7985A in HSOP8 package

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L7985

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L7985A
Active
PowerSO-8 Industrial Ecopack2
L7985ATR
Active
PowerSO-8 Industrial Ecopack2
L7985TR
Active
DFN10 3X3 Industrial Ecopack2

L7985A

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7985ATR

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7985TR

Package:

DFN10 3X3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN10 3X3

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.

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 Power

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
L7985A No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube PowerSO-8 - - PHILIPPINES 1.1 / 1k
L7985ATR Available at 1 distributors

Distributor availability ofL7985ATR

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 4813 1 Order Now

Distributor reported inventory date: 2021-09-15

Distributor Name

Farnell Element14

Stock

4813

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-15

Active
EAR99 NEC Tape And Reel PowerSO-8 - - PHILIPPINES 1.1 / 1k
L7985TR Available at 2 distributors

Distributor availability ofL7985TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1943 1 Order Now
MOUSER WORLDWIDE 35 1 Order Now

Distributor reported inventory date: 2021-09-15

Distributor Name

DIGIKEY

Stock

1943

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

35

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-09-15

Buy Direct
Active
EAR99 NEC Tape And Reel DFN10 3X3 - - PHILIPPINES 1.1 / 1k

L7985A

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

PowerSO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.1 / 1k

Country of Origin

PHILIPPINES

L7985ATR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1 / 1k

Distributor availability ofL7985ATR

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 4813 1 Order Now

Distributor reported inventory date: 2021-09-15

Distributor Name

Farnell Element14

Stock

4813

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-15

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSO-8

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.1 / 1k

Country of Origin

PHILIPPINES

L7985TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1 / 1k

Distributor availability ofL7985TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1943 1 Order Now
MOUSER WORLDWIDE 35 1 Order Now

Distributor reported inventory date: 2021-09-15

Distributor Name

DIGIKEY

Stock

1943

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

35

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-09-15

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DFN10 3X3

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.1 / 1k

Country of Origin

PHILIPPINES

(*) 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