KF40BDT-TR原理图各脚功能电路原理芯片引脚定义引脚图及功能-中国IC网-芯三七

KFxxB

Very low drop voltage regulators with inhibit

Features

■ 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 1.5; 2.5; 3; 3.3; 4; 5; 5.2; 6; 8

■ Internal current and thermal limit

■ Only 2.2 µF for stability

DPAK

SO-8

■ Available in 2 % accuracy at 25 °C

■ Supply voltage rejection: 70 db (typ.)

■ Temperature range: -40 to 125 °C

Description

The KFxx series are very low drop regulators

available in SO-8 package and in a wide range of

output voltages.

The very low drop voltage (0.4 V) and the very low

quiescent current make them particularly

suitable for low noise, low power applications and

specially 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.

Table 1.

Device summary

Part numbers

KF15B

KF25B

KF30B

KF33B

KF40B

KF50B

KF52B

KF80B

December 2007

Rev 10

1/22

www.st.com

22

Contents

KFxxB

Contents

1

2

3

4

5

6

7

8

Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2/22

KFxxB

1

Diagram

Figure 1.

Schematic diagram

3/22

Pin configuration

KFxxB

2

Pin configuration

Figure 2.

Pin connections (top view)

SO-8

DPAK

4/22

KFxxB

3

Maximum ratings

Table 2.

Absolute maximum ratings

Symbol

Parameter

Value

Unit

V_I

I_O

DC input voltage

-0.5 to 20

Internally Limited

-40 to 150

V

Output current

P_TOT

T_STG

T_OP

Power dissipation

Storage temperature range

Operating junction temperature range

°C

-40 to 125

Note:

Absolute maximum ratings are those values beyond which damage to the device may occur.

Functional operation under these condition is not implied.

Table 3.

Symbol

Thermal data

Parameter

DPAK

SO-8

Unit

R_thJC

Thermal resistance junction-case

8

20

°C/W

Figure 3.

Test circuit

5/22

Electrical characteristics

KFxxB

4

Electrical characteristics

Table 4.

Electrical characteristics for KF15 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 3.5 V

Min.

Typ.

Max.

Unit

I

1.47

1.44

2.5

1.5

1.53

1.56

20

V_O

V

I_O= 50 mA, V_I= 3.5 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

2

ΔV_O

V_I= 2.5 to 20 V, I_O= 5 mA

V_I= 2.8 V, I_O= 5 to 500 mA

12

50

1

mV

Load regulation

2

V_I= 2.5 to 20V, I_O= 0mA

ON MODE

V_I= 2.8 to 20V, I_O=500mA

0.5

mA

µA

I_d

Quiescent current

12

100

V_I= 6 V

OFF MODE

f = 120 Hz

f = 1 kHz

50

82

77

60

50

1

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 3.5 1 V

dB

f = 10 kHz

eN

V_d

V_IL

V_IH

I_I

Output noise voltage

Dropout voltage

B = 10 Hz to 100 kHz

I_O= 200 mA

µV

V

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

V

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

6/22

KFxxB

Electrical characteristics

Table 5.

Electrical characteristics for KF25 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 4.5 V

Min.

Typ.

Max.

Unit

I

2.45

2.4

2.5

2.55

2.6

20

V_O

V

I_O= 50 mA, V_I= 4.5 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

2

ΔV_O

V_I= 3.5 to 20 V, I_O= 5 mA

V_I= 3.8 V, I_O= 5 to 500 mA

12

50

1

mV

Load regulation

2

V_I= 3.5 to 20V, I_O= 0mA

ON MODE

V_I= 3.8 to 20V, I_O=500mA

0.5

mA

µA

I_d

Quiescent current

12

100

V_I= 6 V

OFF MODE

f = 120 Hz

f = 1 kHz

50

82

77

60

50

0.2

0.4

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 4.5 1 V

dB

f = 10 kHz

eN

V_d

Output noise voltage

Dropout voltage

B = 10 Hz to 100 KHz

I_O= 200 mA

µV

V

0.35

0.7

I_O= 500 mA

V_IL

V_IH

I_I

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

7/22

Electrical characteristics

KFxxB

Table 6.

Electrical characteristics for KF30 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 5 V

Min.

Typ.

Max.

Unit

I

2.94

2.88

3

3.06

3.12

20

V_O

V

I_O= 50 mA, V_I= 5 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

2

ΔV_O

V_I= 4 to 20 V, I_O= 5 mA

12

50

1

mV

Load regulation

V_I= 4.3 V, I_O= 5 to 500 mA

2

V_I= 4 to 20V, I_O= 0mA

ON MODE

V_I= 4.3 to 20V, I_O=500mA

0.5

mA

µA

I_d

Quiescent current

12

100

V_I= 6 V

OFF MODE

f = 120 Hz

f = 1 kHz

50

81

76

60

50

0.2

0.4

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 5 1 V

dB

f = 10 kHz

eN

V_d

Output noise voltage

Dropout voltage

B = 10 Hz to 100 KHz

I_O= 200 mA

µV

V

0.35

0.7

I_O= 500 mA

V_IL

V_IH

I_I

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

8/22

KFxxB

Electrical characteristics

Table 7.

Electrical characteristics for KF33 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 5.3 V

Min.

Typ.

Max.

Unit

I

3.234

3.168

3.3

3.366

3.432

20

V_O

V

I_O= 50 mA, V_I= 5.3 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

2

ΔV_O

V_I= 4.3 to 20 V, I_O= 5 mA

V_I= 4.6 V, I_O= 5 to 500 mA

12

50

1

mV

Load regulation

2

V_I= 4.3 to 20V, I_O= 0mA

ON MODE

V_I= 4.6 to 20V, I_O=500mA

0.5

mA

µA

I_d

Quiescent current

12

100

V_I= 6 V

OFF MODE

f = 120 Hz

f = 1 kHz

50

80

75

60

50

0.2

0.4

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 5.3 1 V

dB

f = 10 kHz

eN

V_d

Output noise voltage

Dropout voltage

B = 10 Hz to 100 KHz

I_O= 200 mA

µV

V

0.35

0.7

I_O= 500 mA

V_IL

V_IH

I_I

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

9/22

Electrical characteristics

KFxxB

Table 8.

Electrical characteristics for KF40 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 6 V

Min.

Typ.

Max.

Unit

I

3.92

3.84

4

4.08

4.16

20

V_O

V

I_O= 50 mA, V_I= 6 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

3

ΔV_O

V_I= 5 to 20 V, I_O= 5 mA

18

50

1

mV

Load regulation

V_I= 5.3 V, I_O= 5 to 500 mA

2

V_I= 5 to 20V, I_O= 0mA

ON MODE

V_I= 5.3 to 20V, I_O=500mA

0.5

mA

µA

I_d

Quiescent current

12

100

V_I= 6 V

OFF MODE

f = 120 Hz

f = 1 kHz

50

78

73

60

50

0.2

0.4

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 6 1 V

dB

f = 10 kHz

eN

V_d

Output noise voltage

Dropout voltage

B = 10 Hz to 100 KHz

I_O= 200 mA

µV

V

0.35

0.7

I_O= 500 mA

V_IL

V_IH

I_I

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

10/22

KFxxB

Electrical characteristics

Table 9.

Electrical characteristics for KF50 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 7 V

Min.

Typ.

Max.

Unit

I

4.9

4.8

5

5.1

5.2

20

V_O

V

I_O= 50 mA, V_I= 7 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

3

ΔV_O

V_I= 6 to 20 V, I_O= 5 mA

18

50

1

mV

Load regulation

V_I= 6.3 V, I_O= 5 to 500 mA

2

V_I= 6 to 20V, I_O= 0mA

ON MODE

V_I= 6.3 to 20V, I_O=500mA

0.5

mA

µA

I_d

Quiescent current

12

100

V_I= 6 V

OFF MODE

f = 120 Hz

f = 1 kHz

50

76

71

60

50

0.2

0.4

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 7 1 V

dB

f = 10 kHz

eN

V_d

Output noise voltage

Dropout voltage

B = 10 Hz to 100 KHz

I_O= 200 mA

µV

V

0.35

0.7

I_O= 500 mA

V_IL

V_IH

I_I

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

11/22

Electrical characteristics

KFxxB

Table 10. Electrical characteristics for KF52 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 7.2 V

Min.

Typ.

Max.

Unit

I

5.096

4.992

5.2

5.304

5.408

20

V_O

V

I_O= 50 mA, V_I= 7.2 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

3

ΔV_O

V_I= 6.2 to 20 V, I_O= 5 mA

V_I= 6.5 V, I_O= 5 to 500 mA

18

50

1

mV

Load regulation

2

V_I= 6.2 to 20V, I_O= 0mA

ON MODE

V_I= 6.5 to 20V, I_O=500mA

0.5

mA

µA

I_d

Quiescent current

12

100

V_I= 6 V

OFF MODE

f = 120 Hz

f = 1 kHz

50

76

71

60

50

0.2

0.4

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 7.2 1 V

dB

f = 10 kHz

eN

V_d

Output noise voltage

Dropout voltage

B = 10 Hz to 100 KHz

I_O= 200 mA

µV

V

0.35

0.7

I_O= 500 mA

V_IL

V_IH

I_I

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

12/22

KFxxB

Electrical characteristics

Table 11. Electrical characteristics for KF80 (refer to the test circuits, T = 25 °C, C = 0.1 µF,

J

I

C = 2.2 µF unless otherwise specified.)

O

Symbol

Parameter

Output voltage

Test conditions

_O= 50 mA, V_I= 10 V

Min.

Typ.

Max.

Unit

I

7.84

7.68

8

8.16

8.32

20

V_O

V

I_O= 50 mA, V_I= 10 V, T_a= -25 to 85°C

I_O= 500 mA

V_I

I_O

Operating input voltage

Output current limit

Line regulation

V

A

1

4

ΔV_O

V_I= 9 to 20 V, I_O= 5 mA

24

50

mV

Load regulation

V_I= 9.3 V, I_O= 5 to 500 mA

2

V_I= 9 to 20V, I_O= 0mA

ON MODE

0.7

1.5

12

mA

µA

I_d

Quiescent current

V_I= 9.3 to 20V, I_O=500mA

V_I= 9 V

OFF MODE

f = 120 Hz

f = 1 kHz

70

72

67

60

50

0.2

0.4

140

SVR Supply voltage rejection

I

_O= 5 mA, V_I= 10 1 V

dB

f = 10 kHz

eN

V_d

Output noise voltage

Dropout voltage

B = 10 Hz to 100 KHz

I_O= 200 mA

µV

V

0.35

0.7

I_O= 500 mA

V_IL

V_IH

I_I

Control input logic low

Control input logic high

Control input current

T_a= -40 to 125°C

V_I= 6 V, V_C= 6 V

0.8

V

2

10

µA

Output bypass

capacitance

C_O

ESR = 0.1 to 10 Ω, I_O= 0 to 500 mA

µF

13/22

Typical performance characteristics

KFxxB

5

Typical performance characteristics

(unless otherwise specified V

= 3.3 V)

O(NOM)

Figure 4.

Figure 6.

Figure 8.

Dropout voltage vs output current Figure 5.

Dropout voltage vs temperature

Supply current vs input voltage

Figure 7.

Supply current vs input voltage

Short circuit current vs input

voltage

Figure 9.

Supply current vs temperature

14/22

KFxxB

Package mechanical data

6

Package mechanical data

®

In order to meet environmental requirements, ST offers these devices in ECOPACK

packages. These packages have a lead-free second level interconnect. The category of

second Level Interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related to soldering

conditions are also marked on the inner box label. ECOPACK is an ST trademark.

ECOPACK specifications are available at: www.st.com.

15/22

Package mechanical data

KFxxB

SO-8 mechanical data

mm.

inch.

Typ.

Dim.

Min.

Typ.

Max.

Min.

Max.

A

A1

A2

B

1.35

0.10

1.10

0.33

0.19

4.80

3.80

1.75

0.053

0.069

0.010

0.065

0.020

0.010

0.197

0.157

0.25

1.65

0.51

0.25

5.00

4.00

0.04

0.043

0.013

0.007

0.189

0.150

C

D

E

e

1.27

0.050

H

5.80

0.25

0.40

6.20

0.50

1.27

0.228

0.010

0.016

0.244

0.020

0.050

h

L

k

8° (max.)

ddd

0.1

0.04

0016023/C

16/22

KFxxB

Package mechanical data

DPAK mechanical data

mm.

inch.

Dim.

Min.

Typ.

Max.

Min.

Typ.

Max.

A

A1

A2

B

2.2

0.9

2.4

1.1

0.23

0.9

5.4

0.6

6.2

0.086

0.035

0.001

0.025

0.204

0.017

0.019

0.236

0.094

0.043

0.009

0.035

0.212

0.023

0.244

0.03

0.64

5.2

b4

C

0.45

0.48

6

C2

D

D1

E

5.1

0.200

6.4

6.6

0.252

0.260

E1

e

4.7

0.185

0.090

2.28

e1

H

4.4

9.35

1

4.6

0.173

0.368

0.039

0.181

0.397

10.1

L

(L1)

L2

L4

R

2.8

0.8

0.110

0.031

0.6

0°

1

0.023

0.039

8°

0.2

0.008

V2

8°

0°

0068772-F

17/22

Package mechanical data

KFxxB

Tape & reel SO-8 mechanical data

mm.

inch.

Typ.

Dim.

Min.

Typ.

Max.

330

Min.

Max.

A

12.992

0.519

C

D

12.8

20.2

60

13.2

0.504

0.795

2.362

N

T

22.4

8.5

5.9

2.3

4.1

8.1

0.882

0.335

0.232

0.090

0.161

0.319

Ao

Bo

Ko

Po

P

8.1

5.5

2.1

3.9

7.9

0.319

0.216

0.082

0.153

0.311

18/22

KFxxB

Package mechanical data

Tape & reel DPAK-PPAK mechanical data

mm.

Typ.

inch.

Typ.

Dim.

Min.

Max.

330

Min.

Max.

12.992

0.519

A

C

12.8

20.2

60

13.0

13.2

0.504

0.795

2.362

0.512

D

N

T

22.4

7.00

10.60

2.75

4.1

0.882

0.2.76

0.417

0.105

0.161

0.319

Ao

Bo

Ko

Po

P

6.80

10.40

2.55

3.9

6.90

10.50

2.65

4.0

0.268

0.409

0.100

0.153

0.311

0.272

0.413

0.104

0.157

0.315

7.9

8.0

8.1

19/22

Order codes

KFxxB

7

Order codes

Table 12. Order codes

Packages

Output voltage

SO-8 (Tape and reel)

DPAK (Tape and reel)

KF15BDT-TR

KF25BDT-TR

1.5 V

2.5 V

3 V

KF25BD-TR

KF30BD-TR

KF33BD-TR

KF40BD-TR

KF50BD-TR

KF52BD-TR

KF80BD-TR

KF33BDT-TR

KF40BDT-TR

KF50BDT-TR

3.3 V

4 V

5 V

5.2 V

8 V

KF80BDT-TR

20/22

KFxxB

Revision history

8

Revision history

Table 13. Document revision history

Date

Revision

Changes

06-Jun-2007

14-Dec-2007

9

Order codes has been updated and the document has been reformatted.

10

Modified: Table 12.

21/22

KFxxB

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型号:	KF40BDT-TR
是否Rohs认证：	符合
生命周期：	Obsolete
IHS 制造商：	STMICROELECTRONICS
零件包装代码：	TO-252
包装说明：	TO-252, SMSIP3H,.38,90TB
针数：	3
Reach Compliance Code：	unknown
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
风险等级：	5.82
Is Samacsys：	N
可调性：	FIXED
最大回动电压 1：	0.7 V
标称回动电压 1：	0.4 V
最大绝对输入电压：	20 V
最大输入电压：	20 V
最小输入电压：	5 V
JESD-30 代码：	R-PSSO-G2
JESD-609代码：	e3
长度：	6.5 mm
最大电网调整率：	0.018%
最大负载调整率：	0.05%
功能数量：	1
输出次数：	1
端子数量：	2
工作温度TJ-Max：	125 °C
工作温度TJ-Min：	-40 °C
最大输出电流 1：	0.5 A
最大输出电压 1：	4.16 V
最小输出电压 1：	3.84 V
标称输出电压 1：	4 V
封装主体材料：	PLASTIC/EPOXY
封装代码：	TO-252
封装等效代码：	SMSIP3H,.38,90TB
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE
包装方法：	TAPE AND REEL
认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：	2.63 mm
子类别：	Other Regulators
表面贴装：	YES
技术：	BIPOLAR
端子面层：	TIN
端子形式：	GULL WING
端子节距：	2.25 mm
端子位置：	SINGLE
最大电压容差：	4%
宽度：	6.1 mm
Base Number Matches：	1

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