Up to 2 A step down switching regulator

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  • The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the Rth(j-amb) down to approximately 40 °C/W. The device uses an internal P-channel D-MOS transistor (with a typical Rdson of 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of 4 V only, it is particularly suitable for 5 V bus, available in all computer related applications. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.

    Key Features

    • 2.5 A internal switch
    • Operating input voltage from 4 V to 36 V
    • 3.3 V / (±2%) reference voltage
    • Output voltage adjustable from 1.235 V to 35 V
    • Low dropout operation: 100 % duty cycle
    • 250 kHz internally fixed frequency
    • Voltage feedforward
    • Zero load current operation
    • Internal current limiting
    • Synchronization
    • Adjustable soft-start time
    • Inhibit for zero current consumption
    • Protection against feedback disconnection
    • Thermal shutdown

样片和购买

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L5973D PowerSO-8 Tube
批量生产
1.038 10000 EAR99 CHINA 查看供货情况

Distributor availability ofL5973D

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 10749 1 Order Now
RS COMPONENTS EUROPE 4900 5 Order Now
AVNET AMERICA 728 0 Order Now
ARROW EUROPE 8639 0 Order Now
MOUSER WORLDWIDE 5313 1 Order Now
ANGLIA Live EUROPE 8313 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

10749

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1

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RS COMPONENTS

库存

4900

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5

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AVNET

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728

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0

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ARROW

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8639

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0

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MOUSER

库存

5313

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1

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WORLDWIDE Order Now

ANGLIA Live

库存

8313

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1

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EUROPE Order Now

代理商库存报告日期: 2019-11-17

立即购买
L5973D013TR PowerSO-8 Tape And Reel
批量生产
1.038 10000 EAR99 CHINA 查看供货情况

Distributor availability ofL5973D013TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 32 1 Order Now
RS COMPONENTS EUROPE 12110 5 Order Now
FUTURE WORLDWIDE 47500 2500 Order Now
ARROW EUROPE 17500 0 Order Now
Newark Element14 AMERICA 99 0 Order Now
ARROW AMERICA 2500 2500 Order Now
MOUSER WORLDWIDE 13258 1 Order Now
Farnell Element14 EUROPE 5874 1 Order Now
ANGLIA Live EUROPE 500 250 Order Now
RUTRONIK EUROPE 60000 2500 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

32

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

12110

Min.Order

5

地区

EUROPE Order Now

FUTURE

库存

47500

Min.Order

2500

地区

WORLDWIDE Order Now

ARROW

库存

17500

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

99

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

2500

Min.Order

2500

地区

AMERICA Order Now

MOUSER

库存

13258

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

5874

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

500

Min.Order

250

地区

EUROPE Order Now

RUTRONIK

库存

60000

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

获取样片

L5973D

封装

PowerSO-8

包装类型

Tube

单价(US$)

1.038*

Distributor availability ofL5973D

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 10749 1 Order Now
RS COMPONENTS EUROPE 4900 5 Order Now
AVNET AMERICA 728 0 Order Now
ARROW EUROPE 8639 0 Order Now
MOUSER WORLDWIDE 5313 1 Order Now
ANGLIA Live EUROPE 8313 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

10749

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

4900

Min.Order

5

地区

EUROPE Order Now

AVNET

库存

728

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

8639

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

5313

Min.Order

1

地区

WORLDWIDE Order Now

ANGLIA Live

库存

8313

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

供货状态

批量生产

单价(US$)

1.038

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

L5973D013TR

封装

PowerSO-8

包装类型

Tape And Reel

单价(US$)

1.038*

Distributor availability ofL5973D013TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 32 1 Order Now
RS COMPONENTS EUROPE 12110 5 Order Now
FUTURE WORLDWIDE 47500 2500 Order Now
ARROW EUROPE 17500 0 Order Now
Newark Element14 AMERICA 99 0 Order Now
ARROW AMERICA 2500 2500 Order Now
MOUSER WORLDWIDE 13258 1 Order Now
Farnell Element14 EUROPE 5874 1 Order Now
ANGLIA Live EUROPE 500 250 Order Now
RUTRONIK EUROPE 60000 2500 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

32

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

12110

Min.Order

5

地区

EUROPE Order Now

FUTURE

库存

47500

Min.Order

2500

地区

WORLDWIDE Order Now

ARROW

库存

17500

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

99

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

2500

Min.Order

2500

地区

AMERICA Order Now

MOUSER

库存

13258

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

5874

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

500

Min.Order

250

地区

EUROPE Order Now

RUTRONIK

库存

60000

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

供货状态

批量生产

单价(US$)

1.038

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**
L5973D
批量生产
PowerSO-8 工业 Ecopack2
L5973D013TR
批量生产
PowerSO-8 工业 Ecopack2

L5973D

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L5973D013TR

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSO-8

Grade

Industrial

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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