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  • The L4970A is a stepdown monolithic power switching regulator delivering 10A at a voltage variable from 5.1 to 40V.

    Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of the L4970A include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a 15-lead multiwatt plastic power package and requires few external components.Efficient operation at switching frequencies up to 500KHz allows reduction in the size and cost of external filter components.

    主要特性

    • UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
    • INPUT/OUTPUT SYNC PIN
    • VERY HIGH EFFICIENCY
    • PWM LATCH FOR SINGLE PULSE PER PERIOD
    • THERMAL SHUTDOWN
    • SWITCHING FREQUENCY UP TO 500KHz
    • CONTINUOUS MODE OPERATION
    • RESET AND POWER FAIL FUNCTIONS
    • PRECISE 5.1V ± 2% ON CHIP REFERENCE
    • 10A OUTPUT CURRENT
    • 0 TO 90% DUTY CYCLE RANGE
    • 5.1V TO 40V OUTPUT VOLTAGE RANGE
    • INTERNAL CURRENT LIMITING
    • SOFT START
    • INTERNAL FEED-FORWARD LINE REGULATION

电路原理图

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样片和购买

产品型号
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包装类型
供货状态
预算价格(US$)
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ECCN (US)
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从分销商订购
从ST订购
L4970A MW 15L Tube
Active
6.941 10000 EAR99 MOROCCO 查看供货情况

Distributor availability ofL4970A

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 263 1 Order Now
RS COMPONENTS EUROPE 162 1 Order Now
FUTURE WORLDWIDE 230 1 Order Now
ARROW EUROPE 111 0 Order Now
Newark Element14 AMERICA 5 0 Order Now
ARROW AMERICA 32 500 Order Now
MOUSER WORLDWIDE 289 1 Order Now
Farnell Element14 EUROPE 656 1 Order Now
ANGLIA Live EUROPE 4154 1 Order Now
RUTRONIK EUROPE 675 25 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

263

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

162

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

230

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

111

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

5

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

32

Min.Order

500

地区

AMERICA Order Now

MOUSER

库存

289

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

656

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

4154

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

675

Min.Order

25

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

立即购买

L4970A

封装

MW 15L

包装类型

Tube

Unit Price (US$)

6.941*

Distributor availability ofL4970A

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 263 1 Order Now
RS COMPONENTS EUROPE 162 1 Order Now
FUTURE WORLDWIDE 230 1 Order Now
ARROW EUROPE 111 0 Order Now
Newark Element14 AMERICA 5 0 Order Now
ARROW AMERICA 32 500 Order Now
MOUSER WORLDWIDE 289 1 Order Now
Farnell Element14 EUROPE 656 1 Order Now
ANGLIA Live EUROPE 4154 1 Order Now
RUTRONIK EUROPE 675 25 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

263

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

162

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

230

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

111

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

5

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

32

Min.Order

500

地区

AMERICA Order Now

MOUSER

库存

289

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

656

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

4154

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

675

Min.Order

25

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

供货状态

Active

Unit Price (US$)

6.941

数量

10000

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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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**
L4970A
Active
MW 15L 工业 Ecopack1

L4970A

Package:

MW 15L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MW 15L

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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.