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  • The L5987 is a step-down switching regulator with a 3.5 A (minimum) current limited embedded Power MOSFET, so it is able to deliver an up to 3 A current to the load depending on the application conditions.

    The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable also for a 3.3 V bus.
    Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
    The VFQFPN8 and the HSOP packages with an exposed pad allow reducing the RthJAdown to 60 °C/W and 40 °C/W respectively.

    主要特性

    • 3 A DC output current
    • 2.9 V to 18 V input voltage
    • Output voltage adjustable from 0.6 V
    • 250 kHz switching frequency, programmable up to 1 MHz
    • Internal soft-start and inhibit
    • Low dropout operation: 100% duty cycle
    • Voltage feedforward
    • Zero load current operation
    • Overcurrent and thermal protection
    • VFQFPN 3 x 3 -8L and HSOP8 package

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
L5987TR DFN8 3x3 Tape And Reel
Active
0.995 10000 EAR99 PHILIPPINES No availability of distributors reported, please contact our sales office
L5987ATR PowerSO-8 Tape And Reel
Active
0.995 10000 EAR99 CHINA 查看供货情况

Distributor availability ofL5987ATR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2056 1 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 2137 1 Order Now
Farnell Element14 EUROPE 1307 1 Order Now

代理商库存报告日期: 2019-08-20

代理商名称

DIGIKEY

库存

2056

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

625

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

2137

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1307

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-20

Get sample
L5987A PowerSO-8 Tube
Active
0.995 10000 EAR99 CHINA 查看供货情况

Distributor availability ofL5987A

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2000 1 Order Now
MOUSER WORLDWIDE 2000 1 Order Now

代理商库存报告日期: 2019-08-20

代理商名称

DIGIKEY

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-08-20

立即购买

L5987TR

封装

DFN8 3x3

包装类型

Tape And Reel

Unit Price (US$)

0.995*

供货状态

Active

Unit Price (US$)

0.995

数量

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

L5987ATR

封装

PowerSO-8

包装类型

Tape And Reel

Unit Price (US$)

0.995*

Distributor availability ofL5987ATR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2056 1 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 2137 1 Order Now
Farnell Element14 EUROPE 1307 1 Order Now

代理商库存报告日期: 2019-08-20

代理商名称

DIGIKEY

库存

2056

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

625

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

2137

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1307

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-20

供货状态

Active

Unit Price (US$)

0.995

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

L5987A

封装

PowerSO-8

包装类型

Tube

Unit Price (US$)

0.995*

Distributor availability ofL5987A

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2000 1 Order Now
MOUSER WORLDWIDE 2000 1 Order Now

代理商库存报告日期: 2019-08-20

代理商名称

DIGIKEY

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-08-20

供货状态

Active

Unit Price (US$)

0.995

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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**
L5987A
Active
PowerSO-8 工业 Ecopack2
L5987ATR
Active
PowerSO-8 工业 Ecopack2
L5987TR
Active
DFN8 3x3 工业 Ecopack2

L5987A

Package:

PowerSO-8

Material Declaration**:

Marketing Status

Active

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L5987ATR

Package:

PowerSO-8

Material Declaration**:

Marketing Status

Active

Package

PowerSO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L5987TR

Package:

DFN8 3x3

Material Declaration**:

Marketing Status

Active

Package

DFN8 3x3

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.

eDesignSuite

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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

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