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MC7800

更新时间： 2024-11-04 00:04:23
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安森美 - ONSEMI 稳压器
页数 文件大小 规格书
32页 236K
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稳压器 1.0A Positive Voltage Regulators

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MC7800 数据手册

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MC7800, MC7800A,  
NCV7805  
1.0 A Positive Voltage  
Regulators  
These voltage regulators are monolithic integrated circuits designed  
as fixed−voltage regulators for a wide variety of applications  
including local, on−card regulation. These regulators employ internal  
current limiting, thermal shutdown, and safe−area compensation. With  
adequate heatsinking they can deliver output currents in excess of  
1.0 A. Although designed primarily as a fixed voltage regulator, these  
devices can be used with external components to obtain adjustable  
voltages and currents.  
http://onsemi.com  
TO−220−3  
T SUFFIX  
CASE 221A  
Heatsink surface  
connected to Pin 2.  
1
• Output Current in Excess of 1.0 A  
• No External Components Required  
2
3
2
• Internal Thermal Overload Protection  
• Internal Short Circuit Current Limiting  
• Output Transistor Safe−Area Compensation  
• Output Voltage Offered in 2% and 4% Tolerance  
D PAK−3  
Pin 1. Input  
2. Ground  
3. Output  
D2T SUFFIX  
CASE 936  
1
3
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
2
• Available in Surface Mount D PAK−3, DPAK−3 and Standard  
4
3−Lead Transistor Packages  
DPAK−3  
DT SUFFIX  
CASE 369C  
• NCV Prefix for Automotive and Other Applications Requiring Site  
and Control Changes  
2
1
3
• Pb−Free Packages are Available  
STANDARD APPLICATION  
MAXIMUM RATINGS (T = 25°C, unless otherwise noted)  
A
Value  
Unit  
MC78XX  
Input  
Output  
C **  
369C 221A  
936  
Rating  
Input Voltage  
Symbol  
C *  
in  
0.33 mF  
O
(5.0 − 18 V)  
(24 V)  
V
I
35  
40  
Vdc  
W
Power Dissipation  
P
D
Internally Limited  
A common ground is required between the  
input and the output voltages. The input voltage  
must remain typically 2.0 V above the output  
voltage even during the low point on the input  
ripple voltage.  
Thermal Resistance,  
Junction−to−Ambient  
R
92  
65  
Figure °C/W  
14  
q
JA  
Thermal Resistance,  
Junction−to−Case  
R
5.0  
5.0  
5.0  
°C/W  
q
JC  
XX,  
These two digits of the type number  
indicate nominal voltage.  
Storage Junction Temperature  
Range  
T
−65 to +150  
+150  
°C  
°C  
stg  
* C is required if regulator is located an  
in  
appreciable distance from power supply  
filter.  
Operating Junction Temperature  
T
J
Maximum ratings are those values beyond which device damage can occur.  
Maximum ratings applied to the device are individual stress limit values (not  
normal operating conditions) and are not valid simultaneously. If these limits are  
exceeded, device functional operation is not implied, damage may occur and  
reliability may be affected.  
** C is not needed for stability; however,  
O
it does improve transient response. Values  
of less than 0.1 mF could cause instability.  
*This device series contains ESD protection and exceeds the following tests:  
Human Body Model 2000 V per MIL_STD_883, Method 3015.  
Machine Model Method 200 V.  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 22 of this data sheet.  
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 28 of this data sheet.  
Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
April, 2005 − Rev. 14  
MC7800/D  
1234567...32

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