A7987

批量生产
Education

61 V 3A异步降压开关稳压器,电流限值可调,用于汽车应用

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概述
样片和购买
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CAD Resources
工具与软件
质量与可靠性
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  • The A7987 is a step-down monolithic switching regulator that can deliver up to 3 A DC. The adjustable output voltage ranges from 0.8 V to VIN. The wide input voltage range and the almost 100% duty cycle capability meet the fail-safe specifications for automotive systems. The embedded switch-over feature on the VBIAS pin maximizes efficiency at light load. The adjustable current limitation, designed to select the inductor RMS current in accordance with the nominal output current, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing with digital frequency fold-back implements an effective constant current protection over the different application conditions. The peak current fold-back decreases the stress of the power components in heavy short-circuit conditions. The PGOOD open collector output can also implement the output voltage sequencing during the power-up phase. Multiple devices can be synchronized sharing the SYNCH pin to prevent beating noise for low noise requirements such as in infotainment applications.

    主要特性

    • 3 A DC output current
    • 4.5 V to 61 V operating input voltage
    • Adjustable fsw (250 kHz to 1.5 MHz)
    • Output voltage adjustable from 0.8 V to VIN
    • Synchronization
    • Adjustable soft-start time
    • Adjustable current limitation
    • VBIAS improves efficiency at light load
    • PGOOD open collector output
    • Digital frequency fold-back in short-circuit
    • Auto-recovery thermal shutdown
    • Qualified following AEC-Q100 requirements

特别推荐

相关应用

自动数据采集系统

车载信息娱乐系统(IVI)

远程信息处理和网络

All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      STEVAL-ISA207V1

      批量生产

      基于A7987的3 A降压DC/DC开关稳压器(VIN = 4.5 V至60 V)

      汽车IC评估板 ST
      STEVAL-ISA207V1

      描述:

      基于A7987的3 A降压DC/DC开关稳压器(VIN = 4.5 V至60 V)

EDA Symbols, Footprints and 3D Models

STMicroelectronics - A7987

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Symbols

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Footprints

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质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
A7987TR
批量生产
HTSSOP16 汽车应用 Ecopack2

A7987TR

Package:

HTSSOP16

Material Declaration**:

Marketing Status

批量生产

Package

HTSSOP16

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

转换器

Input

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 Power

V This option is required and must be a number.
A This option is required and must be a number.

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
A7987TR Available at 4 distributors

经销商的可用性A7987TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 5378 1 马上订购
AVNET AMERICA 1000 0 马上订购
MOUSER WORLDWIDE 1158 1 马上订购
Farnell Element14 EUROPE 263 1 马上订购

代理商库存报告日期: 2020-12-01

代理商名称

DIGIKEY

库存

5378

Min.Order

1

地区

WORLDWIDE 马上订购

AVNET

库存

1000

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

1158

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

263

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-12-01

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel HTSSOP16 - - PHILIPPINES 2.0 / 1k

A7987TR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.0 / 1k

经销商的可用性A7987TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 5378 1 马上订购
AVNET AMERICA 1000 0 马上订购
MOUSER WORLDWIDE 1158 1 马上订购
Farnell Element14 EUROPE 263 1 马上订购

代理商库存报告日期: 2020-12-01

代理商名称

DIGIKEY

库存

5378

Min.Order

1

地区

WORLDWIDE 马上订购

AVNET

库存

1000

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

1158

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

263

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-12-01

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

HTSSOP16

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

2.0 / 1k

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