36 V 400 mA synchronous step-down switching regulator

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  • The A6984 is a step-down monolithic switching regulator able to deliver up to 400 mA DC. The output voltage adjustability ranges from 0.9 V. The fixed 3.3 V VOUT requires no external resistor divider. The “low consumption mode” (LCM) is designed for applications active during car parking, so it maximizes the efficiency at light load with controlled output voltage ripple. The “low noise mode” (LNM) makes the switching frequency almost constant over the load current range, serving low noise application specifications such as car audio/sensors. The PGOOD open collector output can implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at medium-heavy load, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing on the low-side power element implements effective constant current protection. The package lead finishing guarantees side solderability, thus allowing visual inspection during manufacturing.

    主要特性

    • AEC-Q100 qualified
    • 400 mA DC output current
    • 4.5 V to 36 V operating input voltage
    • Synchronous rectification
    • Low consumption mode or low noise mode
    • 75 µA IQ at light load (LCM VOUT = 3.3 V)
    • 13 µA IQ-SHTDWN
    • Adjustable fSW (250 kHz - 600 kHz)
    • Output voltage adjustable from 0.9 V
    • No resistor divider required for 3.3 V VOUT
    • VBIAS maximizes efficiency at light load
    • 350 mA valley current limit
    • Constant on-time control scheme
    • PGOOD open collector
    • Thermal shutdown

样片和购买

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A6984TR VFDFPN 4X4X1.0 10L PITCH 0.50 Tape And Reel
Active
1.5 10000 EAR99 PHILIPPINES 查看供货情况

Distributor availability ofA6984TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 940 1 Order Now
MOUSER WORLDWIDE 998 1 Order Now
Farnell Element14 EUROPE 122 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

940

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

998

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

122

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

Get sample

A6984TR

封装

VFDFPN 4X4X1.0 10L PITCH 0.50

包装类型

Tape And Reel

Unit Price (US$)

1.5*

Distributor availability ofA6984TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 940 1 Order Now
MOUSER WORLDWIDE 998 1 Order Now
Farnell Element14 EUROPE 122 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

940

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

998

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

122

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

供货状态

Active

Unit Price (US$)

1.5

数量

10000

ECCN (US)

EAR99

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

Education

Product included in our Longevity Program.

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    • 产品型号

      High efficiency synchronous step-down regulator based on the A6984

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技术文档

    • Description 版本 文档大小 操作
      DS12051
      36 V, 400 mA automotive synchronous step-down switching regulator
      3.0
      4.02 MB
      PDF
      DS12051

      36 V, 400 mA automotive synchronous step-down switching regulator

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      Switching Converters (DC-DC) – Quick Reference Guide 1.0
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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
A6984TR
Active
VFDFPN 4X4X1.0 10L PITCH 0.50 汽车 Ecopack2

A6984TR

Package:

VFDFPN 4X4X1.0 10L PITCH 0.50

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFDFPN 4X4X1.0 10L PITCH 0.50

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.