Up to 1 A step down switching regulator for automotive applications

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  • The A5970AD is a step-down monolithic power switching regulator with a minimum switch current limit of 1.35 A so it is able to deliver up to 1 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to VIN.

    The device uses an internal P-channel DMOS transistor (with a typical RDS(on)of 250 mΩ) as switching element to minimize the size of the external components.
    An internal oscillator fixes the switching frequency at 500 kHz. Having a minimum input voltage of 4 V only it fits the automotive applications requiring the device operation even in cold crank conditions. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.

    Key Features

    • Qualified following the AEC-Q100 requirements (see PPAP for more details)
    • 1 A DC output current
    • Operating input voltage from 4 V to 36 V
    • 3.3 V / (± 2%) reference voltage
    • Output voltage adjustable from 1.235 V to VIN
    • Low dropout operation: 100% duty cycle
    • 500 kHz Internally fixed frequency
    • Voltage feed-forward
    • Zero load current operation
    • Internal current limiting
    • Inhibit for zero current consumption
    • Synchronization
    • Protection against feedback disconnection
    • Thermal shutdown

电路原理图

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样片和购买

产品型号
封装
包装类型
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
A5970ADTR SO-8 Tape And Reel
批量生产
1.363 10000 EAR99 CHINA 查看供货情况

Distributor availability ofA5970ADTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3060 1 Order Now
ARROW EUROPE 6999 0 Order Now
MOUSER WORLDWIDE 2485 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

3060

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

6999

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2485

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-14

获取样片
A5970AD SO-8 Tube
批量生产
1.363 10000 EAR99 CHINA 查看供货情况

Distributor availability ofA5970AD

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1924 1 Order Now
ARROW EUROPE 1000 0 Order Now
MOUSER WORLDWIDE 1684 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

1924

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

1000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

1684

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-14

立即购买

A5970ADTR

封装

SO-8

包装类型

Tape And Reel

单价(US$)

1.363*

Distributor availability ofA5970ADTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3060 1 Order Now
ARROW EUROPE 6999 0 Order Now
MOUSER WORLDWIDE 2485 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

3060

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

6999

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2485

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-14

供货状态

批量生产

单价(US$)

1.363

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

A5970AD

封装

SO-8

包装类型

Tube

单价(US$)

1.363*

Distributor availability ofA5970AD

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1924 1 Order Now
ARROW EUROPE 1000 0 Order Now
MOUSER WORLDWIDE 1684 1 Order Now

代理商库存报告日期: 2019-11-14

代理商名称

DIGIKEY

库存

1924

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

1000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

1684

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-14

供货状态

批量生产

单价(US$)

1.363

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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**
A5970AD
批量生产
SO-8 汽车 Ecopack2
A5970ADTR
批量生产
SO-8 汽车 Ecopack2

A5970AD

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Automotive

RoHS Compliance Grade

Ecopack2

A5970ADTR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

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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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

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A This option is required and must be a number.

LED驱动器

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]

LED自定义

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.