KA278RA05CTU全新原装原理图各脚功能电路原理芯片引脚定义-中国IC网-芯三七

当前位置：IC37首页_>K字母起始型号索引_>K字母起始型号索引第141页更新时间：2024-10-25 11:00:18

产品型号KA278RA05CTU的概述

芯片KA278RA05CTU的概述 KA278RA05CTU是一款高性能的线性稳压器，主要应用于提供稳定的电压输出环境。设计方面，该芯片能够以相对较低的功耗在多种条件下工作，使其在消费电子、通信设备和工业控制等领域广泛应用。其核心功能在于将来自电源的高电压转换为所需的恒定低电压，确保电路中其他元件的正常工作。该芯片特别适用于电压要求不高但稳定性要求较高的应用场景。KA278RA05CTU采用精密的电压调节技术，确保输出电压在负载变化和输入电压波动的环境下保持稳定。其输出电压值通常为5V，适合为微控制器、传感器及其他低功耗设备提供电源。芯片KA278RA05CTU的详细参数 KA278RA05CTU的技术参数如下： 1. 输入电压范围：一般为7V至30V，允许范围较大，适应不同电源类型。 2. 输出电压：标称输出电压5V，具有较高的输出精度。 3. 输出电流：最大输出电流可达1A，适...

产品型号KA278RA05CTU的Datasheet PDF文件预览

www.fairchildsemi.com

KA278RXXC-Series

2A Output Low Dropout Voltage Regulators

Features

Description

The KA278RXXC is a low-dropout voltage regulator suit-

able for various electronic equipments. It provides

KA278RXXC-series (33/05/51/09/12)

• 2A/3.3V, 5V, 5.1V, 9V, 12V output low dropout voltage

regulator

• TO-220 full-mold package (4pin)

• Overcurrent protection, thermal shutdown

• Overvoltage protection, short circuit protection

• With output disable function

constant voltage power source with TO-220-4 lead full mold

package. The dropout voltage of KA278RXXC is below

0.5V in full rated current(2A). This regulator has various

functions such as a peak current protection, a thermal shut

down, an overvoltage protection .

TO-220F-4L

KA278RA05C

• Nominal 5V output without adjusting

• Output adjustable between 1.25V and 32V

• 2A output low dropout voltage regulator

• TO-220 full-mold package (4pin)

• Overcurrent protection, thermal shutdown

• Overvoltage protection, short circuit protection

1.Vin 2. Vo 3. GND 4. Vdis - KA278RXXC(33/05/51/09/12)

1.Vin 2. Vo 3. GND 4. Vadj - KA278RA05C

Internal Block Diagram

Vin

OVERVOLTAGE

PROTECTION

OVERVOLTAGE

PROTECTION

THERMAL SHUTDOWN

BANDGAP REFERENCE

THERMAL SHUTDOWN

BANDGAP REFERENCE

Rin

SOA PROTECTION

HIGH / LOW

OUTPUT

ON / OFF

Vdis

Vadj

SHORTCIRCUIT

PROTECTION

1.4V

SHORTCIRCUIT

PROTECTION

Rref

GND

(KA278RA05C)

(KA278R33/05/51/09/12C)

Rev. 1.0.2

KA278RXXC-SERIES

Absolute Maximum Ratings

KA278RXXC, KA278RA05C

Parameter

Symbol

Vin

Value

Unit

Remark

Input voltage

Disable voltage

KA278RXXC

Vdis

Output current

2.0

Power dissipation 1

Power dissipation 2

Junction temperature

Operating temperature

Pd1

Pd2

1.5

No heatsink

With heatsink

150

°C

Topr

Rθjc

Rθja

-20 ~ 80

2.9

°C

Thermal resistance, junction-to case (note2)

Thermal resistance, junction-to-air (note2)

°C/W

48.51

KA278RXXC-SERIES

Electrical Characteristics

(Vin=Note3, Io=1.0A, Ta=25°C , unless otherwise specified)

Parameter

Symbol

Conditions

Min. Typ. Max. Unit

KA278R33C

KA278R05C

KA278R51C

KA278R09C

KA278R12C

3.22

3.3

3.38

5.12

5.22

9.22

12.3

2.0

2.5

4.88

Output voltage

4.98

5.1

8.78

11.7

0.1

0.5

Load regulation

Rload

Rline

5mA < Io < 2A

Line regulation

Note4

Ripple rejection ratio

Dropout voltage

Note1

Vdrop

VdisH

VdisL

IdisH

IdisL

Io = 2A

0.5

Disable voltage high

Disable voltage low

KA278RXXC

Output active

Output disabled

Vdis = 2.7V

Vdis = 0.4V

Io = 0A

2.0

0.8

Disable bias current high KA278RXXC

Disable bias current low KA278RXXC

Quiescent current

µA

-0.4

Reference voltage

KA278RA05C

Vref

1.24 1.27 1.30

Note:

1.These parameters, although guaranteed, are not 100% tested in production.

2. Junction -to -case thermal resistance test environments.

-. Pneumatic heat sink fixture.

-. Clamping pressure 60psi through 12mm diameter cylinder.

-. Thermal grease applied between PKG and heat sink fixture.

3. KA278R33C : Vin = 5V

KA278R05C : Vin = 7V

KA278R09C : Vin = 11V

KA278R12C : Vin = 15V

4. KA278R33C : Vin =4 to 10V

KA278R05C, KA278R51C : Vin=6 to 12V

KA278R09C : Vin=10 to 25V

KA278R12C : Vin = 13V to 29V

KA278RXXC-SERIES

Typical Performance Characteristics

KA278R33C

5.25

100

4.50

3.75

RL=

3.00

2.25

RL=3.3Ω

1.50

RL=

∞

0.75

Input voltage Vin(V)

Input voltage Vin (V)

Figure 2. Quiescent Current vs. Input Voltage

Figure 1. Output Voltage vs. Input Voltage

3.36

5.25

3.34

3.32

4.50

3.75

3.00

2.25

1.50

3.30

3.28

3.26

3.24

0.75

3.22

0.5

1.5

2.5

TEMPERATURE Tj(^oC)

-25

100

125

Disable voltage Vdis (V)

Figure 3. Output Voltage vs. Disable Voltage

Figure 4. Output Voltage vs. Temperature(Tj)

0.70

0.65

0.60

0.55

0.50

2.0A

0.45

0.40

0.35

0.30

-25

100

125

-25

100

125

Junction Temp Tj [

℃]

Junction temperature Tj(^oC)

Figure 5. Quiescent Current vs. Temperature(Tj)

Figure 6. Dropout Voltage vs.Junction Temperature

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

100

-25

3.0

1.0

2.0

4.0

5.0

6.0

TEMPERATURE Tj(^oC)

100

125

Output Current(A)

Figure 8. Overcurrent Protection Characteristics

(Typical Value)

Figure 7. Power Dissipation vs. Temperature(Tj)

4.75

4.50

4.25

4.00

3.75

3.50

Input-output differential voltage Vin-Vo (V)

Figure 9. Output Peak Currenrt vs.

Input-Output Differential Voltage

KA278RXXC-SERIES

Typical Performance Characteristics^(Continued)

KA278R05C

120

100

RL=

RL=2.5

Ω

RL=

∞

Input voltage Vin(V)

Input voltage Vin (V)

Figure 2. Quiescent Current vs. Input Voltage

Figure 1. Output Voltage vs. Input Voltage

5.06

5.04

5.02

5.00

4.98

4.96

4.94

4.92

0.5

1.5

2.5

TEMPERATURE Tj(^oC)

-25

100

125

Disable voltage Vdis (V)

Figure 4. Output Voltage vs. Temperature(Tj)

Figure 3. Output Voltage vs. Disable Voltage

0.70

0.65

0.60

0.55

0.50

2.0A

0.45

0.40

0.35

0.30

-25

100

125

-25

100

125

Junction Temp Tj [

℃

]

Junction temperature Tj(^oC)

Figure 5. Quiescent Current vs. Temperature(Tj)

Figure 6. Dropout Voltage vs.Junction Temperature

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

-25

3.0

1.0

2.0

4.0

5.0

6.0

TEMPERATURE Tj(^oC)

100

125

Output Current(A)

Figure 8. Overcurrent Protection Characteristics

(Typical Value)

Figure 7. Power Dissipation vs. Temperature(Tj)

4.75

4.50

4.25

4.00

3.75

3.50

Input-output differential voltage Vin-Vo (V)

Figure 9. Output Peak Currenrt vs.

Input-Output Differential Voltage

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

KA278R51C

120

100

RL=

RL=2.5Ω

RL=

∞

Input voltage Vin(V)

Input voltage Vin (V)

Figure 2. Quiescent Current vs. Input Voltage

Figure 1. Output Voltage vs. Input Voltage

5.16

5.14

5.12

5.10

5.08

5.06

5.04

5.02

0.5

1.5

2.5

TEMPERATURE Tj(^oC)

-25

100

125

Disable voltage Vdis (V)

Figure 3. Output Voltage vs. Disable Voltage

Figure 4. Output Voltage vs. Temperature(Tj)

0.70

0.65

0.60

0.55

0.50

2.0A

0.45

0.40

0.35

0.30

-25

100

125

-25

100

125

Junction Temp Tj [

℃]

Junction temperature Tj(^oC)

Figure 5. Quiescent Current vs. Temperature(Tj)

Figure 6. Dropout Voltage vs. Junction Temperature

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

100

-25

3.0

1.0

2.0

4.0

5.0

6.0

TEMPERATURE Tj(^oC)

Output Current(A)

Figure 8. Overcurrent Protection Characteristics

(Typical value)

Figure 7. Power Dissipation vs. Temperature(Tj)

-5

-10

-15

-20

-25

= 25 ^oC

IN = 7V

=1A

∆VIN = 0.5Vrms

0.1

100

Time (µs)

Input Ripple Frequency (KHz)

Figure 10. Line Transient Response

Figure 9. Ripple Rejection vs. Input Ripple Frequency

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

4.75

4.50

4.25

4.00

3.75

3.50

-2.0

-2.5

2.0

Input-output differential voltage Vin-Vo (V)

Time (µs)

Figure 12. Output Peak Currenrt vs.

Input-Output Differential Voltage

Figure 11. Load Transient Response

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

KA278R09C

120

100

RL=

RL=4.5Ω

RL=

∞

Input voltage Vin(V)

Input voltage Vin (V)

Figure 2. Quiescent Current vs. Input Voltage

Figure 1. Output Voltage vs. Input Voltage

9.12

9.08

9.04

9.00

8.96

8.92

8.88

8.84

0.5

1.5

2.5

TEMPERATURE Tj(^oC)

-25

100

125

Disable voltage Vdis (V)

Figure 3. Output Voltage vs. Disable Voltage

Figure 4. Output Voltage vs. Temperature(Tj)

0.70

0.65

0.60

0.55

0.50

2.0A

0.45

0.40

0.35

0.30

-25

100

125

-25

100

125

Junction Temp Tj [

℃

]

Junction temperature Tj(^oC)

Figure 6. Dropout Voltage vs.Junction Temperature

Figure 5. Quiescent Current vs. Temperature(Tj)

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

100

-25

3.0

1.0

2.0

4.0

5.0

6.0

TEMPERATURE Tj(^oC)

100

125

Output Current(A)

Figure 8. Overcurrent Protection Characteristics

(Typical Value)

Figure 7. Power Dissipation vs. Temperature(Tj)

4.75

4.50

4.25

4.00

3.75

3.50

Input-output differential voltage Vin-Vo (V)

Figure 9. Output Peak Currenrt vs.

Input-Output Differential Voltage

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

KA278R12C

120

100

15.0

12.5

RL=

10.0

RL= 6Ω

7.5

5.0

RL=

∞

2.5

Input voltage Vin(V)

Input voltage Vin (V)

Figure 2. Quiescent Current vs. Input Voltage

Figure 1. Output Voltage vs. Input Voltage

12.04

12.02

15.0

12.5

12.00

11.98

10.0

7.5

11.96

11.94

5.0

2.5

11.92

TEMPERATURE Tj(^oC)

-25

100 125

0.5

1.5

2.5

Disable voltage Vdis (V)

Figure 4. Output Voltage vs. Temperature(Tj)

Figure 3. Output Voltage vs. Disable Voltage

0.70

0.65

0.60

0.55

0.50

2.0A

0.45

0.40

0.35

0.30

-25

100

125

-25

100

125

Junction Temp Tj [

℃]

Junction temperature Tj(^oC)

Figure 6. Dropout Voltage vs.Junction Temperature

Figure 5. Quiescent Current vs. Temperature(Tj)

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

100

-25

3.0

1.0

2.0

4.0

5.0

6.0

TEMPERATURE Tj(^oC)

100

125

Output Current(A)

Figure 8. Overcurrent Protection Characteristics

(Typical Value)

Figure 7. Power Dissipation vs. Temperature(Tj)

4.75

4.50

4.25

4.00

3.75

3.50

Input-output differential voltage Vin-Vo (V)

Figure 9. Output Peak Currenrt vs.

Input-Output Differential Voltage

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

KA278RA05C

120

100

RL=

RL=2.5Ω

RL=

∞

Input voltage Vin(V)

Input voltage Vin (V)

Figure 2. Quiescent Current vs. Input Voltage

Figure 1. Output Voltage vs. Input Voltage

5.06

5.04

5.02

5.00

4.98

4.96

4.94

4.92

-25

100

125

TEMPERATURE Tj(^oC)

-25

100

125

Junction temperature Tj(^oC )

Figure 3. Output Voltage vs. Temperature(Tj)

* Fixed Mode (Vo=5V)

Figure 4. Quiescent Current vs. Temperature(Tj)

0.70

0.65

0.60

0.55

0.50

2.0A

0.45

0.40

0.35

0.30

-25

100

125

TEMPERATURE Tj(^oC)

-25

100

125

Junction Temp Tj [

℃]

Figure 5. Dropout Voltage vs.Junction Temperature

Figure 6. Power Dissipation vs. Temperature(Tj)

KA278RXXC-SERIES

Typical Performance Characteristics ^(Continued)

100

4.75

4.50

4.25

4.00

3.75

3.50

3.0

1.0

2.0

4.0

5.0

6.0

Input-output differential voltage Vin-Vo (V)

Output Current(A)

Figure 7. Overcurrent Protection

Characteristics(Typical value)

Figure 8. Output Peak Currenrt vs.

Input-Output Differential Voltage

KA278RXXC-SERIES

Typical Application

KA278R33/05/51/09/12C

Vin

GND

Vdis

Disable Signal

Figure 1. Application Circuit

• Ci is required if regulator is located at an appreciable distance from power supply filter.

• Co improves stability and transient response.(Co > 47µF)

KA278RA05

Output

Input

Vin

KA278RA05

GND

Vadj

//R

Vo = 1.25 ( 1 +

) R

= 1.8kΩ , R2 = 0.6kΩ

//R

Figure 2. Application Circuit (Adjustable Mode)

• Ci is required if regulator is located at an appreciable distance from power supply filter.

• Co improves stability and transient response.(C > 47µF)

-5

-10

Junction temperature Tj(ꢀ)

-50

-25

100 125

Figure 3. Internal Resistor(R1,R2) Variation vs. Temperature(Tj)

Output = 5V

Input

Vin

KA278RA05

GND

Vadj

Figure 4. Application Circuit (Fixed Mode)

KA278RXXC-SERIES

Mechanical Dimensions

Package

Dimensions in millimeters

TO-220F-4L

KA278RXXC-SERIES

Mechanical Dimensions ^(Continued)

Package

Dimensions in millimeters

(Forming)

TO-220F-4L

KA278RXXC-SERIES

Mechanical Dimensions ^(Continued)

Package

Dimensions in millimeters

(Short Lead)

TO-220F-4L

NOTE

1. THESE DIMENSIONS DO NOT INCLUDE MOLD PROTRUSION.

2. ( ) IS REFERENCE

3. [ ] IS ASS'Y OUT QUALITY

TITLE

PKG OUTLINE

TO-220F-4L , SHORT LEAD

TOLERANCE

UNIT

SCALE

N/A

5 : 1

DWG. NO.

SPEC NO.

KA278RXXC-SERIES

Ordering Information

Product Number

KA278R33CTU

KA278R05CTU

KA278R51CTU

KA278R09CTU

KA278R12CTU

KA278RA05CTU

KA278R33CYDTU

KA278R05CYDTU

Package

Operating Temperature

TO-220F-4L

-20°C to +80°C

KA278R09CYDTU

KA278R12CYDTU

KA278RA05CYDTU

KA278R33CTSTU

KA278R05CTSTU

KA278R12CTSTU

TO-220F-4L(Forming)

(Short Lead)

TO-220F-4L

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY

LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER

DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body,

or (b) support or sustain life, and (c) whose failure to

perform when properly used in accordance with

instructions for use provided in the labeling, can be

reasonably expected to result in a significant injury of the

user.

2. A critical component in any component of a life support

device or system whose failure to perform can be

reasonably expected to cause the failure of the life support

device or system, or to affect its safety or effectiveness.

www.fairchildsemi.com

2/18/05 0.0m 001

Stock#DSxxxxxxxx

2005 Fairchild Semiconductor Corporation

KA278RA05CTU相关文章

配单直通车

深圳市芯福林电子有限公司服务专线: 13418564337 在线联系:

QQ：2881495808 复制

QQ：308365177 复制

柒号芯城电子商务（深圳）有限公司服务专线: 0755-83209937 在线联系:

QQ：2881677436 复制

QQ：2881620402 复制

北京元坤伟业科技有限公司服务专线: 010-62104931621064316210489162104791 在线联系:

QQ：857273081 复制

QQ：1594462451 复制

深圳市中利达电子科技有限公司服务专线: 0755-83200645/13686833545 在线联系:

QQ：1902134819 复制

QQ：2881689472 复制

首天国际（深圳）科技有限公司服务专线: 0755-82807802/82807803 在线联系:

QQ：528164397 复制

QQ：1318502189 复制

KA278RA05CTU产品参数

型号:	KA278RA05CTU
Brand Name：	ON Semiconductor
是否无铅：	不含铅
生命周期：	End Of Life
IHS 制造商：	ON SEMICONDUCTOR
包装说明：	TO-220F, 4 PIN
制造商包装代码：	340BE
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8541.29.00.95
风险等级：	5.37
Samacsys Confidence：	4
Samacsys Status：	Released
Samacsys PartID：	439512
Samacsys Pin Count：	4
Samacsys Part Category：	Power Supply
Samacsys Package Category：	Transistor Outline, Vertical
Samacsys Footprint Name：	TO-220F 4L
Samacsys Released Date：	2018-03-26 05:20:42
Is Samacsys：	N
可调性：	FIXED/ADJUSTABLE
最大回动电压 1：	0.5 V
标称回动电压 1：	0.5 V
最大绝对输入电压：	35 V
JESD-30 代码：	R-PSFM-T4
JESD-609代码：	e3
最大电网调整率：	0.125%
最大负载调整率：	0.1%
功能数量：	1
输出次数：	1
端子数量：	4
工作温度TJ-Max：	150 °C
最高工作温度：	80 °C
最低工作温度：	-20 °C
最大输出电流 1：	2 A
最大输出电压 1：	32 V
最小输出电压 1：	1.25 V
标称输出电压 1：	5 V
封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SIP4,.06TB
封装形状：	RECTANGULAR
封装形式：	FLANGE MOUNT
包装方法：	RAIL
峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified
调节器类型：	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
子类别：	Other Regulators
表面贴装：	NO
技术：	BIPOLAR
端子面层：	Tin (Sn)
端子形式：	THROUGH-HOLE
端子节距：	2.54 mm
端子位置：	SINGLE
处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大电压容差：	2.4%
Base Number Matches：	1

电子百科

产品导航

产品型号KA278RA05CTU的概述

产品型号KA278RA05CTU的Datasheet PDF文件预览

KA278RA05CTU相关产品

KA278RA05CTU相关文章

IC37:专业IC行业平台