Voltage Regulator. MC78xxCT Datasheet

MC78xxCT Regulator. Datasheet pdf. Equivalent

Part MC78xxCT
Description (MC7800x Series) 1A Positive Voltage Regulator
Feature ( DataSheet : www.DataSheet4U.com ) MC7800, MC7800A, LM340, LM340A Series, NCV7805 1.0 A Positive V.
Manufacture ON Semiconductor
Datasheet
Download MC78xxCT Datasheet

MC78xxCT Series New Product Vishay Semiconductor 3-Termina MC78xxCT Datasheet
( DataSheet : www.DataSheet4U.com ) MC7800, MC7800A, LM340, MC78xxCT Datasheet
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MC78xxCT
( DataSheet : www.DataSheet4U.com )
MC7800, MC7800A, LM340,
LM340A Series, 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.
Output Current in Excess of 1.0 A
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe–Area Compensation
Output Voltage Offered in 2% and 4% Tolerance
Available in Surface Mount D2PAK, DPAK and Standard 3–Lead
Transistor Packages
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
Rating
Symbol Value
Input Voltage (5.0 – 18 V)
Input Voltage (24 V)
Power Dissipation
VI 35
40
Unit
Vdc
Case 221A (TO–220)
TA = 25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Case 936 (D2PAK)
TA = 25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Case 369A (DPAK)
TA = 25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Storage Junction Temperature Range
Operating Junction Temperature
NOTE: ESD data available upon request.
PD
RθJA
RθJC
PD
RθJA
RθJA
PD
RθJA
RθJC
Tstg
TJ
Internally
Limited
65
5.0
W
°C/W
°C/W
Internally
Limited
See
Figure
14
5.0
W
°C/W
°C/W
Internally
Limited
92
5.0
W
°C/W
°C/W
–65 to
+150
°C
+150
°C
© Semiconductor Components Industries, LLC, 2002
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1
2
3
TO–220
T SUFFIX
CASE 221A
Heatsink surface
connected to Pin 2.
D2PAK
Pin 1. Input
D2T SUFFIX
2. Ground
1
CASE 936
3. Output
3
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
1
3
DPAK
DT SUFFIX
CASE 369A
STANDARD APPLICATION
Input
Cin*
0.33 µF
MC78XX
Output
CO**
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.
XX, These two digits of the type number
indicate nominal voltage.
* Cin is required if regulator is located an
appreciable distance from power supply
filter.
** CO is not needed for stability; however,
it does improve transient response. Values
of less than 0.1 µF could cause instability.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the wdewvwic.eDamtaarSkihneget4U.com
section on page 18 of this data sheet.
Publication Order Number:
MC7800/D



MC78xxCT
MC7800, MC7800A, LM340, LM340A Series, NCV7805
R18
100 k
D1
Zener
MC7800
LAT
Q17
R24
50
LAT 3 A
Q18
Q19
QNPN
D2
Zener
R19
27.5 k
C3 1.0 P
Q10
QNPN
R22
100
R14
1.0 k
R15
R21 680
600
Q7
QNPN
R17
9.0 k
R1
10.66 k
Q5
QNPN 2
Q9
QNPN 2
Q6
QNPN
R11
15 k
R2
1.56 k
Q8
QNPN
Q14
QNPN
R5
4.5 k
C2
3.0 P
Q1
QNPN 6
Q13
QNPN
R6
1.0 k
Q15
QNPN
R20
17500
Q12
QNPN
R16 R10
600 3340-(3316ACT)
R12
3.0 k
R25
6.0 k
R26
3.0 k
R9
3.0 k
C1
N+ 30 P
Q4
QNPN
Q2 Q16
QNPN 4
Diode
Q3
QNPN
SUB
Q11 2
R13
11660
R7 R3
14 k 1.8 k
R8
5.0 k
Q20
QNPN
R23
0.2
Vin
R30
18 k
R29
9.0 k
R28
9.0 k
R27
9.0 k
Vout
5.01
Sense
This device contains 22 active transistors.
Figure 1. Representative Schematic Diagram
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