L4971

批量生产

1.5A Switching Regulator

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  • The L4971 is a step down monolithic power switching regulator delivering 1.5A at a voltage between 3.3V and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25Ω) to obtain very high efficency and high switching speed.

    A switching frequency up to 300KHz is achievable (the maximum power dissipation of the packages must be observed).
    A wide input voltage range between 8V to 55V and output voltages regulated from 3.3V to 50V cover the majority of today’s applications.
    Features of this new generations of DC-DC converter include pulse-by-pulse current limit, hiccup mode for short circuit protection, voltage feedforward regulation, soft-start, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.
    The device is available in plastic dual in line, DIP8 for standard assembly, and SO16W for SMD assembly.

    主要特性

    • PROTECTION AGAINST FEEDBACK DISCONNECTION
    • INHIBIT FOR ZERO CURRENT CONSUMPTION
    • SOFT START FUNCTION
    • THERMAL SHUTDOWN
    • ZERO LOAD CURRENT OPERATION
    • VOLTAGE FEEDFORWARD
    • UP TO 1.5A STEP DOWN CONVERTER
    • PRECISE 3.3V (±1%) INTERNAL REFERENCE VOLTAGE
    • OPERATING INPUT VOLTAGE FROM 8V TO 55V
    • SWITCHING FREQUENCY ADJUSTABLE UP TO 300KHz
    • INTERNAL CURRENT LIMITING (PULSE-BY PULSE AND HICCUP MODE)
    • OUTPUT VOLTAGE ADJUSTABLE FROM 3.3V TO 50V

样片和购买

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L4971 DIP-8 Tube
批量生产
1.185 1000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofL4971

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地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1881 1 Order Now
COMPEL EUROPE 50 1 Order Now
RS COMPONENTS EUROPE 2448 1 Order Now
ARROW EUROPE 24054 0 Order Now
P&S ASIA/PACIFIC 40 1 Order Now
MOUSER WORLDWIDE 1035 1 Order Now
ANGLIA Live EUROPE 36300 50 Order Now

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1881

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40

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1035

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36300

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50

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代理商库存报告日期: 2020-01-17

获取样片
L4971D SO-16W Tube
批量生产
1.354 1000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofL4971D

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 282 1 Order Now
COMPEL EUROPE 94 1 Order Now
RS COMPONENTS EUROPE 357 1 Order Now
FUTURE WORLDWIDE 584 1 Order Now
ARROW EUROPE 2165 0 Order Now
MOUSER WORLDWIDE 1051 1 Order Now
Farnell Element14 EUROPE 67 1 Order Now

代理商库存报告日期: 2020-01-17

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DIGIKEY

库存

282

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1

地区

WORLDWIDE Order Now

COMPEL

库存

94

Min.Order

1

地区

EUROPE Order Now

RS COMPONENTS

库存

357

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

584

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2165

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0

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EUROPE Order Now

MOUSER

库存

1051

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1

地区

WORLDWIDE Order Now

Farnell Element14

库存

67

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2020-01-17

立即购买
L4971D013TR SO-16W Tape And Reel
批量生产
1.354 1000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofL4971D013TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 210 1 Order Now
COMPEL EUROPE 3040 1 Order Now
RS COMPONENTS EUROPE 16 1 Order Now
AVNET AMERICA 33000 0 Order Now
ARROW EUROPE 15000 0 Order Now
ARROW AMERICA 2000 1000 Order Now
Farnell Element14 EUROPE 606 1 Order Now
RUTRONIK EUROPE 1000 1000 Order Now

代理商库存报告日期: 2020-01-17

代理商名称

DIGIKEY

库存

210

Min.Order

1

地区

WORLDWIDE Order Now

COMPEL

库存

3040

Min.Order

1

地区

EUROPE Order Now

RS COMPONENTS

库存

16

Min.Order

1

地区

EUROPE Order Now

AVNET

库存

33000

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0

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AMERICA Order Now

ARROW

库存

15000

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0

地区

EUROPE Order Now

ARROW

库存

2000

Min.Order

1000

地区

AMERICA Order Now

Farnell Element14

库存

606

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

1000

Min.Order

1000

地区

EUROPE Order Now

代理商库存报告日期: 2020-01-17

获取样片

L4971

封装

DIP-8

包装类型

Tube

单价(US$)

1.185*

Distributor availability ofL4971

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1881 1 Order Now
COMPEL EUROPE 50 1 Order Now
RS COMPONENTS EUROPE 2448 1 Order Now
ARROW EUROPE 24054 0 Order Now
P&S ASIA/PACIFIC 40 1 Order Now
MOUSER WORLDWIDE 1035 1 Order Now
ANGLIA Live EUROPE 36300 50 Order Now

代理商库存报告日期: 2020-01-17

代理商名称

DIGIKEY

库存

1881

Min.Order

1

地区

WORLDWIDE Order Now

COMPEL

库存

50

Min.Order

1

地区

EUROPE Order Now

RS COMPONENTS

库存

2448

Min.Order

1

地区

EUROPE Order Now

ARROW

库存

24054

Min.Order

0

地区

EUROPE Order Now

P&S

库存

40

Min.Order

1

地区

ASIA/PACIFIC Order Now

MOUSER

库存

1035

Min.Order

1

地区

WORLDWIDE Order Now

ANGLIA Live

库存

36300

Min.Order

50

地区

EUROPE Order Now

代理商库存报告日期: 2020-01-17

供货状态

批量生产

单价(US$)

1.185

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L4971D

封装

SO-16W

包装类型

Tube

单价(US$)

1.354*

Distributor availability ofL4971D

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 282 1 Order Now
COMPEL EUROPE 94 1 Order Now
RS COMPONENTS EUROPE 357 1 Order Now
FUTURE WORLDWIDE 584 1 Order Now
ARROW EUROPE 2165 0 Order Now
MOUSER WORLDWIDE 1051 1 Order Now
Farnell Element14 EUROPE 67 1 Order Now

代理商库存报告日期: 2020-01-17

代理商名称

DIGIKEY

库存

282

Min.Order

1

地区

WORLDWIDE Order Now

COMPEL

库存

94

Min.Order

1

地区

EUROPE Order Now

RS COMPONENTS

库存

357

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

584

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2165

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

1051

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

67

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2020-01-17

供货状态

批量生产

单价(US$)

1.354

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L4971D013TR

封装

SO-16W

包装类型

Tape And Reel

单价(US$)

1.354*

Distributor availability ofL4971D013TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 210 1 Order Now
COMPEL EUROPE 3040 1 Order Now
RS COMPONENTS EUROPE 16 1 Order Now
AVNET AMERICA 33000 0 Order Now
ARROW EUROPE 15000 0 Order Now
ARROW AMERICA 2000 1000 Order Now
Farnell Element14 EUROPE 606 1 Order Now
RUTRONIK EUROPE 1000 1000 Order Now

代理商库存报告日期: 2020-01-17

代理商名称

DIGIKEY

库存

210

Min.Order

1

地区

WORLDWIDE Order Now

COMPEL

库存

3040

Min.Order

1

地区

EUROPE Order Now

RS COMPONENTS

库存

16

Min.Order

1

地区

EUROPE Order Now

AVNET

库存

33000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

15000

Min.Order

0

地区

EUROPE Order Now

ARROW

库存

2000

Min.Order

1000

地区

AMERICA Order Now

Farnell Element14

库存

606

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

1000

Min.Order

1000

地区

EUROPE Order Now

代理商库存报告日期: 2020-01-17

供货状态

批量生产

单价(US$)

1.354

数量

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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 材料声明**
L4971
批量生产
DIP-8 工业 Ecopack2 (**)
L4971D
批量生产
SO-16W 工业 Ecopack1
L4971D013TR
批量生产
SO-16W 工业 Ecopack1

L4971

Package:

DIP-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

DIP-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

L4971D

Package:

SO-16W

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-16W

Grade

Industrial

RoHS Compliance Grade

Ecopack1

L4971D013TR

Package:

SO-16W

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-16W

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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

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