STEVAL-L6981CDR

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38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981CDR

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Product overview

Description

The STEVAL-L6981CDR evaluation board is based on the L6981CDR synchronous monolithic step-down regulator capable of delivering up to 1.5 A DC. Its wide input voltage range makes the device suitable for a broad range of applications.
The device implements peak current mode architecture in an SO 8L package with internal compensation to minimize design complexity and size.
The L6981 is available in low consumption mode (LCM) and low noise mode (LNM) versions.
LCM maximizes efficiency at light load with controlled output voltage ripple, making the device extremely suitable for battery-powered applications.
LNM makes the switching frequency constant and minimizes the output voltage ripple overload current range, meeting the specification for noise sensitive applications.
The EN pin manages the enable/disable function. The typical shutdown current is 2 μA when disabled. When the EN pin is pulled up, the device is enabled and the internal 1.3 ms soft-start takes place.
Pulse-by-pulse current sensing on both power elements implements effective constant current protection while thermal shutdown prevents thermal run-away.
  • All features

    • 3.5 V to 38 V operating input voltage
    • Output voltage from 0.85 V to VIN
    • 1.5 A DC output current
    • Internal compensation network
    • Two different versions: LCM for high efficiency at light loads and LNM for noise sensitive applications
    • 2 μA shutdown current
    • Internal soft-start
    • Enable function
    • Overvoltage protection
    • Output voltage sequencing
    • Thermal protection
    • SO 8L package
    • Synchronization with external clock for LNM devices

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Related Applications

Industrial

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-L6981CDR
Active
CARD Industrial Ecopack2 Yes

STEVAL-L6981CDR

Package:

CARD

Material Declaration**:

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.

Sample & Buy

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Budgetary Price (US$)*/Qty
STEVAL-L6981CDR Available at 4 distributors

Distributor availability ofSTEVAL-L6981CDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10 1 Order Now
YOSUN ASIA/PACIFIC 2 1 Order Now
MOUSER WORLDWIDE 10 1 Order Now
Farnell Element14 EUROPE 7 1 Order Now

Distributor reported inventory date: 2021-05-14

Distributor Name

DIGIKEY

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

YOSUN

Stock

2

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-14

Buy Direct L6981CDR
Active
- EAR99 NEC ITALY - 36.0 / 1

STEVAL-L6981CDR

Core Product

L6981CDR

Marketing Status

Active

Budgetary Price (US$)*/Qty

36.0 / 1

Distributor availability ofSTEVAL-L6981CDR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10 1 Order Now
YOSUN ASIA/PACIFIC 2 1 Order Now
MOUSER WORLDWIDE 10 1 Order Now
Farnell Element14 EUROPE 7 1 Order Now

Distributor reported inventory date: 2021-05-14

Distributor Name

DIGIKEY

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

YOSUN

Stock

2

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-14

Supplier

-

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

36.0 / 1

Country of Origin

ITALY

Board production status

-

(*) 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