7812 查看數據表（PDF） - Unspecified
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7812 Datasheet PDF : 5 Pages
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Linear Voltage Regulator – 7812
Absolute Maximum Ratings1
PARAMETER
Input Voltage
Power Dissipation2
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature
SYMBOL
VIN
PD
-
TJ
TSTG
Recommended Operating Conditions
PARAMETER
SYMBOL
Input Voltage
VIN
Output Current
IOUT
Operating Temperature Range
TJ
VALUE
36
Internally Limited
-55 to 150
150
-65 to 150
MIN MAX
7
25
-
1.5
-55
125
Rev 1.0
19/04/19
UNIT
V
W
°C
°C
°C
UNIT
V
A
°C
DC Electrical Characteristics, Vl =19V, lOUT=500mA,CI=0.33µF, CO=0.1µf, TMIN≤TJ≤TMAX(unless noted otherwise)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
UNITS
Output Voltage
Line Regulation
Load Regulation
Input Bias Current
Input Bias Current
Change
Output Noise
Voltage
VOUT
TJ = 25°C
11.5
12
12.5
5mA ≤ IOUT ≤ 1A,
14.5V ≤ VIN ≤ 27V, PD ≤ 15 Watts
11.4
12
12.6
14.5V ≤ VIN ≤ 30V, TJ = 25°C
-
3.8
24
ΔVOUT
16V ≤ VIN ≤ 22V, TJ = 25°C
-
0.3
24
14.8V ≤ VIN ≤ 27V,IOUT =1A,TJ= 25°C
-
-
48
ΔVOUT
5mA ≤ IOUT ≤ 1.5A, TJ = 25°C
-
8.1
60
IB
-
3.4
6.5
14.5V≤ VIN ≤ 30V, IOUT =1A,TJ= 25°C
-
-
0.7
ΔIB
15V ≤ VIN ≤ 30V
-
-
0.8
5mA ≤ IOUT ≤ 1A
-
-
0.5
Vn
10Hz ≤ f ≤ 100KHz, TJ = 25°C
-
10
-
V
mV
mA
mA
µV/VOUT
Ripple Rejection
RR
15V ≤ VIN ≤ 25V, f = 120Hz
55
60
-
dB
Dropout Voltage
VIN – VOUT
IOUT = 1A, TJ = 25°C
-
2
-
V
Output Resistance
rOUT
f = 1 kHz
-
1.1
-
mΩ
Short-Circuit
Current Limit
ISC
VIN = 35V, TA = 25°C
-
0.2
-
A
Peak Output Current
Avg. Output Voltage
Temp. Coefficient
IMAX
TCVOUT
TJ = 25°C
-
2.2
-
-
-0.8
-
A
mV/°C
1. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for
extended periods, may reduce device reliability. 2. Results in die form are dependent on die attach and assembly method. Max
power dissipation is internally limited by the die.
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