
MC7812CT
Three-Terminal
Positive Voltage
Regulators
Features
Parameter Symbol Value Unit
Input Voltage V1 30 V
Operating Ambient Temperature PD 15 W
Operating Junction Temperature TOPR -20---+75 oC
Storage Temperature Range TSTG -55---+125 oC
Electrical Characteristics (Vi=19V, Io=500mA, O oC<Tj<125 oC,
Ci=0.33uF, Co=0.1uF, Unless Otherwise Specified)
Parameter Sym Min Typ Max Test conditions
11.76V 12V 12.24V Tj=25oC
Output
Voltage V011.66V 12.34V 14.5VЉV1Љ30V,
5mAЉIOЉ1.0A,
PD=15W
12mV 240mV 5mAЉIOЉ1.5A,
Tj=25oC,Load
Regulation ϦVo 4.0mV 120mV 250mAЉIOЉ750mA,
Tj=25oC
Line
regulation ϦVo 10mV
3.0mV
240mV
120mV
14.5VЉV1Љ30V,
Tj=25oC
16VЉV1Љ22V,
Tj=25oC
Quiescent
Current Iq 4.3mA 8.0mA Tj=25oC, IO=0
Quiescent
Current
Change ϦIq1.0mA
0.5mA 14.5VЉV1Љ30V
5mAЉIoЉ1.0A
Output Noise
Voltage VN 75μV10HzЉfЉ100KHz
Tj=25oC
Ripple
Rejection RR 55dB 71dB f=120Hz
Dropout
Voltage Vd 2.0V IO=1.0A, Tj=25oC
Output Short
Circuit
Current RO 18mohm f=1.0KHz
Output Short
Circuit
Current IOS 350mA Tj=25oC
Peak Output
Current Iopeak 2.2A Tj=25oC
Temperature
Coefficient of
Output
voltage
ϦVO/
ϦTj 1.0mV/ oC0 oCЉTjЉ125 oC,
IO=5mA
omponents
20736 Marilla Street Chatsworth
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MCC
INCHES MM
A .560 .625 14.22 15.88
B .380 .420 9.65 10.67
C .100 .135 2.54 3.43
D .230 .270 5.84 6.86
E .380 .420 9.65 10.67
F ------ .250 ------ 6.35
G .500 .580 12.70 14.73
H .090 .110 2.29 2.79
I .020 .045 0.51 1.14
J .012 .025 0.30 0.64
K .139 .161 3.53 4.09
L .140 .190 3.56 4.83
M .045 .055 1.14 1.40
N .080 .115 2.03 2.92
A
B
C
K
J
I
H
G
F
E
D
N
M
L
H
TO-220
PIN
PIN 1. INPUT
PIN 2. GND
123
PIN 3. OUTPUT
Revision: 3 2008/01/01
TM
Micro Commercial Components
• Output current in excess of 1.0 Ampere
• No external components required
• Internal thermal overload protection
• Internal short-circuit current limiting
• Output voltage offered in 2% tolerance
Maximum Ratings @ TA=25OC, Unless Otherwise Noted
x Case Material: Molded Plastic. UL Flammability
Classification Rating 94V-0
www.mccsemi.com
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