KA78R12CTU [ONSEMI]
LDO Regulator, 1 A, 5 to 15V, with Fixed Output;
| 型号： | KA78R12CTU |
| 厂家： | 
ONSEMI |
| 描述： | LDO Regulator, 1 A, 5 to 15V, with Fixed Output 局域网 输出元件 调节器 |
| 文件： | 总20页 (文件大小：257K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Is Now Part of
To learn more about ON Semiconductor, please visit our website at
www.onsemi.com
Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers
will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor
product management systems do not have the ability to manage part nomenclature that utilizes an underscore
(_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain
device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated
device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please
email any questions regarding the system integration to Fairchild_questions@onsemi.com.
ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number
of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right
to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON
Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor
is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
www.fairchildsemi.com
KA78RXXC-Series
1A Output Low Dropout Voltage Regulators
Features
Description
• 1A/3.3V, 5V, 8V, 9V, 12V, 15V output low dropout
voltage regulator
The KA78RXXC is a low-dropout voltage regulator suitable
for various electronic equipments.
• TO-220 full-mold package (4pin)
• Overcurrent protection, thermal shutdown
• Overvoltage protection, short circuit protection
• With output disable function
It provides constant voltage power source with TO-220-4
lead full mold package. Dropout voltage of KA78RXXC is
below 0.5V in full rated current(1A).
This regulator has various functions such as peak current
protection, thermal shut down, overvoltage protection and
output disable function.
TO-220F-4L
1
1. Vin 2. V 3. GND 4. Vdis
O
Internal Block Diagram
Q1
2
Vin
1
Vo
OVERVOLTAGE
PROTECTION
THERMAL SHUTDOWN
BANDGAP REFERENCE
-
+
R1
SOA PROTECTION
HIGH / LOW
OUTPUT
ON / OFF
4
Vdis
-
+
R2
SHORT-CIRCUIT
PROTECTION
1.4V
3
GND
Rev. 1.0.1
©2011 Fairchild Semiconductor Corporation
KA78RXXC-SERIES
Absolute Maximum Ratings
KA78RXXC
Parameter
Symbol
Vin
Value
35
Unit
V
Remark
Input voltage
-
Disable voltage
Vdis
Io
35
V
-
Output current
1.0
A
-
Power dissipation 1
Pd1
Pd2
Tj
1.5
W
No heatsink
Power dissipation 2
15
W
With heatsink
Junction temperature
Operating temperature
Thermal resistance, junction-to case (Note2)
Thermal resistance, junction-to-air (Note2)
+150
-20 ~ +80
4.31
48.83
°C
-
-
-
-
Topr
Rθjc
Rθja
°C
°C/W
°C/W
2
KA78RXXC-SERIES
Electrical Characteristics
(Vin = Note3, Io = 0.5A, Ta = 25°C, unless otherwise specified)
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
KA78R33C
KA78R05C
KA78R08C
KA78R09C
KA78R12C
KA78R15C
-
-
-
-
-
-
3.22
3.3
5
3.38
5.12
8.2
9.22
12.3
15.4
2.0
2.5
-
4.88
7.8
8
Output voltage
Vo
V
8.78
9
11.7
12
15
0.1
0.5
55
-
14.6
Load regulation
Rload
Rline
RR
5mA < Io < 1A
-
%
%
Line regulation
Note4
-
45
-
Ripple rejection ratio
Dropout voltage
Note1
dB
V
Vdrop
VdisH
VdisL
IdisH
IdisL
Iq
Io = 1A
0.5
-
Disable voltage high
Disable voltage low
Disable bias current high
Disable bias current low
Quiescent current
Output active
Output disabled
Vdis = 2.7V
Vdis = 0.4V
Io = 0A
2.0
-
-
V
-
0.8
20
V
-
-
μA
mA
mA
-
-
-0.4
10
-
-
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. KA78R33C : Vin = 5V
KA78R05C : Vin = 7V
KA78R08C : Vin = 10V
KA78R09C : Vin = 11V
KA78R12C : Vin = 15V
KA78R15C : Vin = 20V
4. KA78R33C : Vin = 4V to 10V
KA78R05C : Vin = 6V to 12V
KA78R08C : Vin = 9V to 25V
KA78R09C : Vin = 10V to 25V
KA78R12C : Vin = 13V to 29V
KA78R15C : Vin = 16V to 30V
3
KA78RXXC-SERIES
Typical Performance Characteristics
KA78R33
5.25
80
60
40
20
0
4.50
3.75
RL=
3.00
2.25
RL=3.3Ω
1.50
RL=
∞
0.75
0
0
5
10
Input voltage Vin(V)
15
20
0
2
4
6
8
10
Input voltage Vin (V)
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current 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
0
3.22
0
0.5
3
1
1.5
2
2.5
75
TEMPERATURE Tj(oC)
-25
0
25
50
100
125
Disable voltage Vdis (V)
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
10
8
0.55
0.50
0.45
0.40
6
4
2
0
1.0A
0.35
0.30
0.25
0.20
-25
0
25
50
75
100
125
75
-25
0
25
50
100
125
Junction Temp Tj [℃]
Junction temperature Tj(oC)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
4
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
20
15
100
80
60
10
5
40
20
0
0
-25
1.5
0
0.5
1.0
2.0
2.5
3.0
75
0
25
50
100
125
Output Current(A)
TEMPERATURE TJ(oC)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
2.75
2.50
2.25
2.00
1.75
1.50
0
1
2
3
4
5
6
Input-output differential voltage Vin-Vo (V)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
5
KA78RXXC-SERIES
Typical Performance Characteristics
KA78R05C
7
6
80
60
40
20
0
5
RL=
4
3
RL=5Ω
2
RL=
∞
1
0
0
5
10
Input voltage Vin(V)
15
20
0
5
10
15
Input voltage Vin (V)
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
7
6
5
4
3
5.06
5.04
5.02
5.00
4.98
2
1
0
4.96
4.94
4.92
0
0.5
3
1
1.5
2
2.5
75
TEMPERATURE Tj(oC )
-25
0
25
50
100
125
Disable voltage Vdis (V)
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
10
8
0.55
0.50
0.45
0.40
6
4
2
0
1.0A
0.35
0.30
0.25
0.20
-25
0
25
50
75
100
125
75
-25
0
25
50
100
125
Junction Temp Tj [℃]
Junction temperature Tj(oC)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs. Junction Temperature
6
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
20
15
100
80
60
10
5
40
20
0
0
-25
1.5
0
0.5
1.0
2.0
2.5
3.0
75
0
25
50
100
125
Output Current(A)
o
j
TEMPERATURE TJ( C)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 7. Power Dissipation vs. Temperature(Tj)
2.75
2.50
2.25
2.00
1.75
1.50
0
1
2
3
4
5
6
Input-output differential voltage Vin-Vo (V)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
7
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
KA78R08C
10
9
80
60
40
20
0
RL=
8
7
6
5
RL=8Ω
4
3
2
1
0
RL=
∞
0
5
10
Input voltage Vin(V)
15
20
5
10
15
20
25
0
Input voltage Vin (V)
Figure 2. Quiescent Current vs. Input Voltage
Figure 1. Output Voltage vs. Input Voltage
10
9
8
7
6
5
4
3
2
1
0
8.06
8.04
8.02
8.00
7.98
7.96
7.94
7.92
0.5
3
1
1.5
2
2.5
75
TEMPERATURE Tj(oC)
-25
0
25
50
100
125
Disable voltage Vdis (V)
Figure 3. Output Voltage vs. Disable Voltage
Figure 4. Output Voltage vs. Temperature(Tj)
10
8
0.55
0.50
0.45
0.40
6
4
2
0
1.0A
0.35
0.30
0.25
0.20
-25
0
25
50
75
100
125
75
-25
0
25
50
100
125
Junction Temp Tj [℃]
Junction temperature Tj(oC )
Figure 6. Dropout Voltage vs.Junction Temperature
Figure 5. Quiescent Current vs. Temperature(Tj)
8
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
100
20
15
80
60
10
5
40
20
0
0
-25
1.5
0
0.5
1.0
2.0
2.5
75
0
25
50
100
125
Output Current(A)
TEMPERATURE TJ(oC)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 7. Power Dissipation vs. Temperature(Tj)
2.75
2.50
2.25
2.00
1.75
1.50
0
1
2
3
4
5
6
Input-output differential voltage Vin-Vo (V)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
9
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
KA78R09C
10
9
80
60
40
20
0
RL=
8
7
6
5
RL=9Ω
4
3
2
1
0
RL=
∞
0
5
10
Input voltage Vin(V)
15
20
5
10
15
20
25
0
Input voltage Vin (V)
Figure 2. Quiescent Current vs. Input Voltage
Figure 1. Output Voltage vs. Input Voltage
10
9
8
7
6
5
4
3
2
1
0
9.06
9.04
9.02
9.00
8.98
8.96
8.94
8.92
0
0.5
3
1
1.5
2
2.5
75
TEMPERATURE Tj(oC )
-25
0
25
50
100
125
Disable voltage Vdis (V)
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 3. Output Voltage vs. Disable Voltage
10
8
0.55
0.50
0.45
0.40
6
4
2
0
1.0A
0.35
0.30
0.25
0.20
-25
0
25
50
75
100
125
75
-25
0
25
50
100
125
Junction Temp Tj [℃]
Junction temperature Tj(oC)
Figure 6. Dropout Voltage vs.Junction Temperature
Figure 5. Quiescent Current vs. Temperature(Tj)
10
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
100
20
15
80
60
10
5
40
20
0
1.5
0
0.5
1.0
2.0
2.5
0
-25
75
TEMPERATURE TJ(oC)
0
25
50
100
125
Output Current(A)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 7. Power Dissipation vs. Temperature(Tj)
2.75
2.50
2.25
2.00
1.75
1.50
0
1
2
3
4
5
6
Input-output differential voltage Vin-Vo (V)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
11
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
KA78R12C
17.5
15.0
80
60
40
20
0
12.5
RL=
10.0
7.5
RL=12Ω
5.0
RL=
∞
2.5
0
0
5
10
15
20
Input voltage Vin(V)
5
10
15
20
25
0
Input voltage Vin (V)
Figure 2. Quiescent Current vs. Input Voltage
Figure 1. Output Voltage vs. Input Voltage
12.06
17.5
15.0
12.5
12.04
12.02
10.0
7.5
12.00
11.98
5.0
11.96
11.94
2.5
0
11.92
0
0.5
3
1
1.5
2
2.5
75
TEMPERATURE Tj(oC)
-25
0
25
50
100
125
Disable voltage Vdis (V)
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 3. Output Voltage vs. Disable Voltage
10
8
0.55
0.50
0.45
0.40
6
4
2
0
1.0A
0.35
0.30
0.25
0.20
-25
0
25
50
75
100
125
75
-25
0
25
50
100
125
Junction Temp Tj [℃]
Junction temperature Tj(oC)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
12
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
20
15
100
80
60
10
5
40
20
0
0
-25
1.5
0
0.5
1.0
2.0
2.5
3.0
75
TEMPERATURE TJ(oC)
0
25
50
100
125
Output Current(A)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
Figure 7. Power Dissipation vs. Temperature(Tj)
2.75
2.50
2.25
2.00
1.75
1.50
0
1
2
3
4
5
6
Input-output differential voltage Vin-Vo (V)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
13
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
KA78R15C
17.5
15.0
80
60
40
20
0
12.5
RL=
10.0
7.5
RL=15Ω
5.0
RL=
∞
2.5
0
0
5
10
15
20
5
10
15
20
0
25
Input voltage Vin(V)
Input voltage Vin (V)
Figure 1. Output Voltage vs. Input Voltage
Figure 2. Quiescent Current vs. Input Voltage
15.15
17.5
15.0
12.5
10.0
7.5
15.10
15.05
15.00
14.95
5.0
2.5
0
14.90
14.85
14.80
0
0.5
3
1
1.5
2
2.5
75
TEMPERATURE Tj(oC)
-25
0
25
50
100
125
Disable voltage Vdis (V)
Figure 4. Output Voltage vs. Temperature(Tj)
Figure 3. Output Voltage vs. Disable Voltage
10
8
0.55
0.50
0.45
0.40
6
4
2
0
1.0A
0.35
0.30
0.25
0.20
-25
0
25
50
75
100
125
75
-25
0
25
50
100
125
Junction Temp Tj [℃]
Junction temperature Tj(oC)
Figure 5. Quiescent Current vs. Temperature(Tj)
Figure 6. Dropout Voltage vs.Junction Temperature
14
KA78RXXC-SERIES
Typical Performance Characteristics (Continued)
20
80
15
60
40
10
5
20
0
1.5
0
-25
0
0.5
1.0
2.0
2.5
3.0
75
TEMPERATURE Tj(oC)
0
25
50
100
125
Output Current(A)
Figure 7. Power Dissipation vs. Temperature(Tj)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
2.75
2.50
2.25
2.00
1.75
1.50
0
1
2
3
4
5
6
Input-output differential voltage Vin-Vo (V)
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
15
KA78RXXC-SERIES
Typical Application
Vo
Vin
1
2
3
GND
4
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)
16
KA78RXXC-SERIES
Mechanical Dimensions
Package
Dimensions in millimeters
TO-220F-4L
17
KA78RXXC-SERIES
Ordering Information
Product Number
KA78R33CTU
KA78R05CTU
KA78R08CTU
KA78R09CTU
KA78R12CTU
KA78R15CTU
Package
Operating Temperature
TO-220F-4L
-20°C to +80°C
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
11/1/11 0.0m 001
Stock#DS400558
© 2011 Fairchild Semiconductor Corporation
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
Literature Distribution Center for ON Semiconductor
19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
For additional information, please contact your local
Sales Representative
© Semiconductor Components Industries, LLC
www.onsemi.com
相关型号：
©2020 ICPDF网 联系我们和版权申明