A6983

Active
Design Win Education

Automotive-grade 38 V, 3 A synchronous step-down converter with 25 µA quiescent current

Download datasheet Order Direct

Product overview

Description

The A6983 is an easy-to-use synchronous monolithic step-down regulator capable of delivering up to 3 A DC to the load. The wide input voltage range makes the device suitable for a broad range of applications. The A6983 is based on peak current mode architecture and is packaged in a QFN16 (3 x 3 mm) with internal compensation thus minimizing design complexity and size. 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, which meets the low noise application specification, such as for car audio. The A6983 allows the switching frequency to be selected in the 200 kHz to 2.3 MHz range with optional spread spectrum for improved EMC.

The EN pin provides enable/disable functionality. The typical shutdown current is 2 μA when disabled. As soon as the EN pin is pulled-up, the device is enabled, and the internal 1.3 ms soft-start takes place. The A6983 features a Power Good open collector that monitors the FB voltage. Pulse by pulse current sensing on both power elements implements an effective constant current protection, and thermal shutdown prevents thermal run-away.

  • All features

    • AEC-Q100 qualified
    • Operating temperature range: -40 °C to +150 °C for Tj
    • 3.5 V to 38 V operating input voltage
    • Load dump tolerant up to 40 V
    • Output voltage from 0.85 V to VIN
    • 3.3 V and 5 V fixed output voltage versions
    • 3 A DC output current
    • 25 μA operating quiescent 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
    • High voltage VIN compatible enable
    • Output overvoltage protection
    • Output voltage sequencing
    • Thermal protection
    • 200 kHz to 2.3 MHz programmable switching frequency
    • Optional spread spectrum for improved EMC
    • Power Good
    • Synchronization to external clock for LNM devices
    • QFN16 (3 x 3 mm) package

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Power Supply
Choose type:
Input Specification
Input Specification
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
A
this option is required
Output Power: 0

You might also like...

EDA Symbols, Footprints and 3D Models

STMicroelectronics - A6983

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Please select one model supplier :

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A6983C33QTR
Active
QFPN 3X3X0.80 16L PITCH 0.50 Automotive Ecopack3
A6983C50QTR
Active
QFPN 3X3X0.80 16L PITCH 0.50 Automotive Ecopack3
A6983CQTR
Active
QFPN 3X3X0.80 16L PITCH 0.50 Automotive Ecopack3
A6983N33QTR
Active
QFPN 3X3X0.80 16L PITCH 0.50 Automotive Ecopack3
A6983N50QTR
Active
QFPN 3X3X0.80 16L PITCH 0.50 Automotive Ecopack3
A6983NQTR
Active
QFPN 3X3X0.80 16L PITCH 0.50 Automotive Ecopack3

A6983C33QTR

Package:

QFPN 3X3X0.80 16L PITCH 0.50

Material Declaration**:

Marketing Status

Active

Package

QFPN 3X3X0.80 16L PITCH 0.50

Grade

Automotive

RoHS Compliance Grade

Ecopack3

A6983C50QTR

Package:

QFPN 3X3X0.80 16L PITCH 0.50

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFPN 3X3X0.80 16L PITCH 0.50

Grade

Automotive

RoHS Compliance Grade

Ecopack3

A6983CQTR

Package:

QFPN 3X3X0.80 16L PITCH 0.50

Material Declaration**:

Marketing Status

Active

Package

QFPN 3X3X0.80 16L PITCH 0.50

Grade

Automotive

RoHS Compliance Grade

Ecopack3

A6983N33QTR

Package:

QFPN 3X3X0.80 16L PITCH 0.50

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFPN 3X3X0.80 16L PITCH 0.50

Grade

Automotive

RoHS Compliance Grade

Ecopack3

A6983N50QTR

Package:

QFPN 3X3X0.80 16L PITCH 0.50

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFPN 3X3X0.80 16L PITCH 0.50

Grade

Automotive

RoHS Compliance Grade

Ecopack3

A6983NQTR

Package:

QFPN 3X3X0.80 16L PITCH 0.50

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFPN 3X3X0.80 16L PITCH 0.50

Grade

Automotive

RoHS Compliance Grade

Ecopack3

(**) 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

Swipe or click the button to explore more details Don't show this again
Part Number
Marketing Status
Budgetary Price (US$)*/Qty
Order from ST
Order from distributors
Package
Packing Type
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
A6983CQTR
Available at distributors

Distributor availability of A6983CQTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
A6983N33QTR
Available at distributors

Distributor availability of A6983N33QTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
A6983C50QTR
Available at distributors

Distributor availability of A6983C50QTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
A6983N50QTR
Available at distributors

Distributor availability of A6983N50QTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
A6983C33QTR
Available at distributors

Distributor availability of A6983C33QTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
A6983NQTR
Available at distributors

Distributor availability of A6983NQTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

A6983CQTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

A6983CQTR

Distributor Name

Distributor reported inventory date:

A6983N33QTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

A6983N33QTR

A6983C50QTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

A6983C50QTR

A6983N50QTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

A6983N50QTR

A6983C33QTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

A6983C33QTR

A6983NQTR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

A6983NQTR

Distributor Name

Distributor reported inventory date:

Swipe or click the button to explore more details Don't show this again

(*) 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