Very low drop voltage regulators with inhibit

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  • The KF series are very low drop regulators available in SO-8 and DPAK packages and in a wide range of output voltages.

    The very low dropout voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and especially in battery powered systems.
    A shutdown logic control function is available (pin 5, TTL compatible). This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 μF capacitor for stability allowing space and cost saving.

    主要特性

    • Very low dropout voltage (0.4 V)
    • Very low quiescent current (typ. 50 μA in OFF mode, 500 μA in ON mode)
    • Output current up to 500 mA
    • Logic-controlled electronic shutdown
    • Output voltages of 2.5; 3.3; 5; 8 V
    • Internal current and thermal limit
    • Only 2.2 μF for stability
    • Available in ± 2 % accuracy at 25 °C
    • Supply voltage rejection: 70 db (typ.)
    • Temperature range: - 40 to 125 °C

样片和购买

产品型号
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Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
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KF33BD-TR SO-8 Tape And Reel 3.3 2 0.5
Active
0.32 10000
更多信息

ECCN (US):

EAR99

Country of Origin:

CHINA

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Farnell Element14 EUROPE 11177 1 Order Now
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KF80BDT-TR DPAK Tape And Reel 8 2 0.5
Active
0.343 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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KF50BDT-TR DPAK Tape And Reel 5 2 0.5
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0.343 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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KF50BD-TR SO-8 Tape And Reel 5 2 0.5
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0.32 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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KF25BD-TR SO-8 Tape And Reel 2.5 2 0.5
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0.32 10000
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EAR99

Country of Origin:

CHINA

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KF25BDT-TR DPAK Tape And Reel 2.5 2 0.5
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0.368 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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KF33BDT-TR DPAK Tape And Reel 3.3 2 0.5
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0.368 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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Distributor availability ofKF33BDT-TR

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AVNET AMERICA 4420 0 Order Now
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KF33BD-TR

封装

SO-8

包装类型

Tape And Reel

Unit Price (US$)

0.32*

Distributor availability ofKF33BD-TR

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地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 16137 1 Order Now
RS COMPONENTS EUROPE 8120 5 Order Now
AVNET AMERICA 2500 0 Order Now
ARROW EUROPE 47500 0 Order Now
MOUSER WORLDWIDE 10287 1 Order Now
Farnell Element14 EUROPE 11177 1 Order Now
ANGLIA Live EUROPE 15290 1 Order Now

代理商库存报告日期: 2019-09-20

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DIGIKEY

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16137

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

8120

Min.Order

5

地区

EUROPE Order Now

AVNET

库存

2500

Min.Order

0

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AMERICA Order Now

ARROW

库存

47500

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0

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MOUSER

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10287

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1

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Farnell Element14

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11177

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ANGLIA Live

库存

15290

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1

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代理商库存报告日期: 2019-09-20

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.32

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

KF80BDT-TR

封装

DPAK

包装类型

Tape And Reel

Unit Price (US$)

0.343*

Distributor availability ofKF80BDT-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1398 1 Order Now
RS COMPONENTS EUROPE 2725 1 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 2500 1 Order Now

代理商库存报告日期: 2019-09-20

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DIGIKEY

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1398

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1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

2725

Min.Order

1

地区

EUROPE Order Now

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库存

2500

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0

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MOUSER

库存

2500

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1

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代理商库存报告日期: 2019-09-20

Output Voltage (V) (nom)

8

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.343

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

KF50BDT-TR

封装

DPAK

包装类型

Tape And Reel

Unit Price (US$)

0.343*

Distributor availability ofKF50BDT-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 13261 1 Order Now
RS COMPONENTS EUROPE 3125 5 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 100 0 Order Now
MOUSER WORLDWIDE 4606 1 Order Now
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DIGIKEY

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13261

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1

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WORLDWIDE Order Now

RS COMPONENTS

库存

3125

Min.Order

5

地区

EUROPE Order Now

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库存

2500

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Newark Element14

库存

100

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MOUSER

库存

4606

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1

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Farnell Element14

库存

2488

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1

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代理商库存报告日期: 2019-09-20

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.343

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

KF50BD-TR

封装

SO-8

包装类型

Tape And Reel

Unit Price (US$)

0.32*

Distributor availability ofKF50BD-TR

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DIGIKEY WORLDWIDE 1680 1 Order Now
RS COMPONENTS EUROPE 10555 5 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 6601 1 Order Now
Farnell Element14 EUROPE 936 1 Order Now
ANGLIA Live EUROPE 38401 1 Order Now

代理商库存报告日期: 2019-09-20

代理商名称

DIGIKEY

库存

1680

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1

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RS COMPONENTS

库存

10555

Min.Order

5

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EUROPE Order Now

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库存

5000

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0

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MOUSER

库存

6601

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1

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Farnell Element14

库存

936

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ANGLIA Live

库存

38401

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1

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EUROPE Order Now

代理商库存报告日期: 2019-09-20

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.32

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

KF25BD-TR

封装

SO-8

包装类型

Tape And Reel

Unit Price (US$)

0.32*

Distributor availability ofKF25BD-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2135 1 Order Now
RS COMPONENTS EUROPE 2602 1 Order Now
ARROW EUROPE 7500 0 Order Now
ARROW AMERICA 671 1 Order Now
MOUSER WORLDWIDE 4454 1 Order Now
Farnell Element14 EUROPE 978 1 Order Now
RUTRONIK EUROPE 7500 2500 Order Now

代理商库存报告日期: 2019-09-20

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DIGIKEY

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2135

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1

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RS COMPONENTS

库存

2602

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1

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库存

7500

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0

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ARROW

库存

671

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1

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MOUSER

库存

4454

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1

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Farnell Element14

库存

978

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1

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EUROPE Order Now

RUTRONIK

库存

7500

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-20

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.32

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

KF25BDT-TR

封装

DPAK

包装类型

Tape And Reel

Unit Price (US$)

0.368*

Distributor availability ofKF25BDT-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1280 1 Order Now
MOUSER WORLDWIDE 2190 1 Order Now
Farnell Element14 EUROPE 1914 1 Order Now

代理商库存报告日期: 2019-09-20

代理商名称

DIGIKEY

库存

1280

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2190

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1914

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-20

Output Voltage (V) (nom)

2.5

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.368

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

KF33BDT-TR

封装

DPAK

包装类型

Tape And Reel

Unit Price (US$)

0.368*

Distributor availability ofKF33BDT-TR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 9845 1 Order Now
RS COMPONENTS EUROPE 7645 5 Order Now
AVNET AMERICA 4420 0 Order Now
FUTURE WORLDWIDE 3218 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 19950 1 Order Now
Farnell Element14 EUROPE 9173 1 Order Now
RUTRONIK EUROPE 7500 2500 Order Now

代理商库存报告日期: 2019-09-20

代理商名称

DIGIKEY

库存

9845

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

7645

Min.Order

5

地区

EUROPE Order Now

AVNET

库存

4420

Min.Order

0

地区

AMERICA Order Now

FUTURE

库存

3218

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

5000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

19950

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

9173

Min.Order

1

地区

EUROPE Order Now

RUTRONIK

库存

7500

Min.Order

2500

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-20

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

2

Output Current (A) (nom)

0.5

供货状态

Active

Unit Price (US$)

0.368

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**
KF25BD-TR
Active
SO-8 工业 Ecopack2
KF25BDT-TR
Active
DPAK 工业 Ecopack2
KF33BD-TR
Active
SO-8 工业 Ecopack2
KF33BDT-TR
Active
DPAK 工业 Ecopack2
KF50BD-TR
Active
SO-8 工业 Ecopack2
KF50BDT-TR
Active
DPAK 工业 Ecopack2
KF80BDT-TR
Active
DPAK 工业 Ecopack2

KF25BD-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

KF25BDT-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

KF33BD-TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

KF33BDT-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

KF50BD-TR

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

KF50BDT-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

KF80BDT-TR

Package:

DPAK

Material Declaration**:

Marketing Status

Active

Package

DPAK

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.