Low noise and low drop voltage regulator with shutdown function

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  • The LK112S is a low-dropout linear regulator with shutdown function. The internal switch can be controlled by TTL or CMOS logic levels. The device is ON when the control pin is pulled to a high logic level. An external capacitor can be connected to the noise bypass pin to reduce the output noise level to 30 μVrms. An internal PNP pass transistor is used to achieve a low-dropout voltage.

    The LK112S has a very low quiescent current in ON mode while in OFF mode the Iqis reduced to 100 nA max. The internal thermal shutdown circuitry limits the junction temperature below 150 °C. The load current is internally monitored and in the presence of a short-circuit or overcurrent conditions at the output, the device shuts down.

    Key Features

    • Output current up to 200 mA
    • Low-dropout voltage (500 mV max. at IOUT = 200 mA)
    • Very low quiescent current: 0.1 μA in OFF mode and max. 250 μA in ON mode at IOUT = 0 mA
    • Low output noise: typ. 30 μV at IOUT = 60 mA and 10 Hz < f < 80 kHz
    • Wide range of output voltages
    • Internal current and thermal limit
    • VOUT tolerance ± 2% (at 25 °C)
    • Operative input voltage from: VOUT + 0.5 to 14 V (for VOUT > 2 V) or from 2.5 V to 14 V (for VOUT < 2 V)

样片和购买

产品型号
封装
包装类型
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
供货状态
预算价格(US$)
数量
More info
从分销商订购
从ST订购
LK112SM50TR SOT23-5L Tape And Reel 5 2 0.2
批量生产
0.24 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

查看供货情况

Distributor availability ofLK112SM50TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 4895 1 Order Now
RS COMPONENTS EUROPE 1690 5 Order Now
FUTURE WORLDWIDE 3000 3000 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 3033 1 Order Now
Farnell Element14 EUROPE 1533 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

4895

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1

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RS COMPONENTS

库存

1690

Min.Order

5

地区

EUROPE Order Now

FUTURE

库存

3000

Min.Order

3000

地区

WORLDWIDE Order Now

ARROW

库存

3000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

3033

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1533

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

立即购买
LK112SM18TR SOT23-5L Tape And Reel 1.8 2 0.2
批量生产
0.24 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

查看供货情况

Distributor availability ofLK112SM18TR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 1307 1 Order Now
Farnell Element14 EUROPE 2776 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

MOUSER

库存

1307

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2776

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

立即购买
LK112SM33TR SOT23-5L Tape And Reel 3.3 2 0.2
批量生产
0.24 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

查看供货情况

Distributor availability ofLK112SM33TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 16508 1 Order Now
RS COMPONENTS EUROPE 3295 1 Order Now
FUTURE WORLDWIDE 5700 1 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 4380 1 Order Now
Farnell Element14 EUROPE 1896 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

16508

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

3295

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

5700

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

6000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

4380

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1896

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

立即购买

LK112SM50TR

封装

SOT23-5L

包装类型

Tape And Reel

单价(US$)

0.24*

Distributor availability ofLK112SM50TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 4895 1 Order Now
RS COMPONENTS EUROPE 1690 5 Order Now
FUTURE WORLDWIDE 3000 3000 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 3033 1 Order Now
Farnell Element14 EUROPE 1533 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

4895

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

1690

Min.Order

5

地区

EUROPE Order Now

FUTURE

库存

3000

Min.Order

3000

地区

WORLDWIDE Order Now

ARROW

库存

3000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

3033

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1533

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.2

供货状态

批量生产

单价(US$)

0.24

数量

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LK112SM18TR

封装

SOT23-5L

包装类型

Tape And Reel

单价(US$)

0.24*

Distributor availability ofLK112SM18TR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 1307 1 Order Now
Farnell Element14 EUROPE 2776 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

MOUSER

库存

1307

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2776

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

Output Voltage (V) (nom)

1.8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.2

供货状态

批量生产

单价(US$)

0.24

数量

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

LK112SM33TR

封装

SOT23-5L

包装类型

Tape And Reel

单价(US$)

0.24*

Distributor availability ofLK112SM33TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 16508 1 Order Now
RS COMPONENTS EUROPE 3295 1 Order Now
FUTURE WORLDWIDE 5700 1 Order Now
ARROW EUROPE 6000 0 Order Now
MOUSER WORLDWIDE 4380 1 Order Now
Farnell Element14 EUROPE 1896 1 Order Now

代理商库存报告日期: 2019-11-17

代理商名称

DIGIKEY

库存

16508

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

3295

Min.Order

1

地区

EUROPE Order Now

FUTURE

库存

5700

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

6000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

4380

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1896

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-11-17

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.2

供货状态

批量生产

单价(US$)

0.24

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**
LK112SM18TR
批量生产
SOT23-5L 工业 Ecopack2
LK112SM33TR
批量生产
SOT23-5L 工业 Ecopack2
LK112SM50TR
批量生产
SOT23-5L 工业 Ecopack2

LK112SM18TR

Package:

SOT23-5L

Material Declaration**:

Marketing Status

批量生产

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LK112SM33TR

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LK112SM50TR

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SOT23-5L

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.