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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从分销商订购
从ST订购
A6984TR VFDFPN 4X4X1.0 10L PITCH 0.50 Tape And Reel
批量生产
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 700 1 Order Now
Farnell Element14 EUROPE 120 1 Order Now

代理商库存报告日期: 2019-12-04

代理商名称

DIGIKEY

库存

700

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

120

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-04

A6984TR

封装

VFDFPN 4X4X1.0 10L PITCH 0.50

包装类型

Tape And Reel

单价(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 700 1 Order Now
Farnell Element14 EUROPE 120 1 Order Now

代理商库存报告日期: 2019-12-04

代理商名称

DIGIKEY

库存

700

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

120

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-04

供货状态

批量生产

单价(US$)

1.5

数量

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
A6984TR
批量生产
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

批量生产

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.

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