A6983

量産中
Design Win Education
MySTに保存する

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

Download datasheet
Order Direct

製品概要

概要

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.

  • 特徴

    • 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
    • Optimized for low EMI requirements:
      • Selected package minimizes switch node ringing
      • Parallel input path minimizes parasitic inductance
      • Spread spectrum reduces peak emissions
    • Power Good
    • Synchronization to external clock for LNM devices
    • QFN16 (3 x 3 mm) package
    続きを読む 一部を表示

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 Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:
Power Management Design Center

Power Supply Design Tool

• SMPS design, by topology, by type and by product
• PFC design with analog and digitial control
• Supports various PCB configurations
Choose type:
DC/DC
AC/DC
太陽光発電システム
Power Management Design Center

LED Lighting Design Tool

• Handles AC-DC and DC-DC design in common topologies
• Displays interactive and annotated schematic
• Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC
Power Management Design Center

Digital Power Workbench

• Provides a step-by-step optimized design of power section and control loop
• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
Power Management Design Center

Power Tree Designer

• Specify input/output power for each node in the tree
• Check for consistency
• Design each individual node
Choose design tool:
Thermal-electrical Simulators for Components

AC Switches Simulator

• Select ratings and application waveforms
• Get junction temperature and blocking voltage graphs
• Search and sort suitable devices
Thermal-electrical Simulators for Components

Rectifier Diodes Simulator

• Select ratings and application waveforms
• Estimate power losses
• Search and sort suitable devices
Thermal-electrical Simulators for Components

STPOWER Studio

• Supports long mission profiles
• Provides power loss and temperature graphs
• Helps define heatsink thermal properties
Thermal-electrical Simulators for Components

Twister Sim

• Help select the right ViPOWER Automotive power device
• Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
• Supports various PCB configurations
Thermal-electrical Simulators for Components

TVS Simulator

• Specify system ratings and surge waveform
• Search and sort suitable devices
Thermal-electrical Simulators for Components

Estimate

• Build simple schematics and firmware inputs in minutes
• Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:
Signal Conditioning Design Tool

Active Filters

• Handles multi-stage-designs and common topologies
• Returns circuit component values
• Provides gain, phase and group delay graphs
• Low Pass, High Pass and Band Pass
Signal Conditioning Design Tool

Comparators

• Handles most common configurations
• Returns circuit components values
• Provides I/O signal waveforms
• Inverting, Non Inverting, Window
Signal Conditioning Design Tool

Low side Current Sensing

• Returns circuit component values
• Provides current error graphs
Signal Conditioning Design Tool

High side Current Sensing

• Provides current error graphs.
• Help to select the right High side current sensing and shunt devices.
Choose design tool:
NFC/RFID Calculators

NFC Inductance

• Input geometry and substrate properties
• Get antenna impedance
NFC/RFID Calculators

UHF Link Budget

• Enter forward and reverse link characteristics
• The tool returns link budget estimate
NFC/RFID Calculators

NFC Tuning Circuit

• Enter antenna parameter and matching target
• Select the topology of the matching network
• The tool returns component values for the desired design targets

おすすめ製品

STSW-eDSim

eDSim: fast and powerful electrical simulation software for SMPS and analog ICs

STEVAL-A6983NV1

Evaluation board based on DC-DC converter buck regulator A6983NQTR

STEVAL-A6983CV1

Evaluation board based on DC-DC converter buck regulator A6983CQTR

EDAシンボル / フットプリント / 3Dモデル

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 :

Start your design with UltraLibrarian
Start your design with SamacSys
Symbols

EDAシンボル

Footprints

フットプリント

3D model

3Dモデル

すべてのリソース

すべてのカテゴリを表示
タイトル
バージョン
更新日

SIMPLIS models (1)

タイトル
バージョン
更新日
A6983 SIMPLIS examples schematics
2024.02 11 Mar 2024
11 Mar 2024
A6983 SIMPLIS examples schematics 2024.02

品質 & 信頼性

製品型番 マーケティング･ステータス パッケージ グレード RoHSコンプライアンスグレード 材料宣誓書**
A6983C33QTR
量産中
QFPN 3X3X0.80 16L PITCH 0.50 オートモーティブ Ecopack3
A6983C50QTR
量産中
QFPN 3X3X0.80 16L PITCH 0.50 オートモーティブ Ecopack3
A6983CQTR
量産中
QFPN 3X3X0.80 16L PITCH 0.50 オートモーティブ Ecopack3
A6983N33QTR
量産中
QFPN 3X3X0.80 16L PITCH 0.50 オートモーティブ Ecopack3
A6983N50QTR
量産中
QFPN 3X3X0.80 16L PITCH 0.50 オートモーティブ Ecopack3
A6983NQTR
量産中
QFPN 3X3X0.80 16L PITCH 0.50 オートモーティブ Ecopack3

A6983C33QTR

Package:

QFPN 3X3X0.80 16L PITCH 0.50

Material Declaration**:

More Info

Marketing Status

量産中

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
More Info

Marketing Status

量産中

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**:

More Info

Marketing Status

量産中

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
More Info

Marketing Status

量産中

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
More Info

Marketing Status

量産中

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
More Info

Marketing Status

量産中

Package

QFPN 3X3X0.80 16L PITCH 0.50

Grade

Automotive

RoHS Compliance Grade

Ecopack3

(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください

サンプル & 購入

（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。

製品

検索履歴

ブックマーク

Please log in  to show your saved searches.

▼
戻る
戻る
戻る

ご存知でしたか？

Please provide email

Please enter code

Congratulations!

Simple subscription

Congratulations!

x

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

Invalid code, please check the code sent to your email address and validate again. In case you did not receive any code please select 'I did not receive code'

You can start following this product to receive updates when new Resources, Tools and SW become available. It's easy and takes only 1 minute. ja

お客様のプロフィール情報をSTが処理する方法、及びお客様の個人データ保護の権利を行使する方法について説明した、STのプライバシー･ステートメントをご確認ください。

以下の製品のお知らせを受け取れます
- A6983

You can re-use the validation code to subscribe to another product or application.

Sorry, there was a problem on our servers. Please try again.