Up to 1 A step down switching regulator

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  • The L5981 is a step-down switching regulator with a 1.5 A (min.) current limited embedded Power MOSFET, so it is able to deliver in excess of 1 A DC current to the load depending on the application condition.

    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 package with an exposed pad allows reducing the RthJA down to approximately 60 °C/W.

    Key Features

    • 1 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
    • VFQFPN8 3 mm x 3 mm package

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L5981TR DFN8 3x3 Tape And Reel
批量生产
0.918 10000 EAR99 PHILIPPINES 查看供货情况

Distributor availability ofL5981TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3795 1 Order Now
MOUSER WORLDWIDE 3996 1 Order Now

代理商库存报告日期: 2019-11-11

代理商名称

DIGIKEY

库存

3795

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

3996

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-11

获取样片

L5981TR

封装

DFN8 3x3

包装类型

Tape And Reel

单价(US$)

0.918*

Distributor availability ofL5981TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3795 1 Order Now
MOUSER WORLDWIDE 3996 1 Order Now

代理商库存报告日期: 2019-11-11

代理商名称

DIGIKEY

库存

3795

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

3996

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-11

供货状态

批量生产

单价(US$)

0.918

数量

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 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**
L5981TR
批量生产
DFN8 3x3 工业 Ecopack2

L5981TR

Package:

DFN8 3x3

Material Declaration**:

Marketing Status

批量生产

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.

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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.