7812 Datasheet, PDF (1/3 Pages) Inchange Semiconductor Company Limited – isc Three Terminal Positive Voltage Regulator

7812
3-terminal 1 A positive voltage regulator
Features
 Output Current up to 1 A
 Thermal Overload Protection
 Short Circuit Protection
 Output Transistor Safe Operating Area Protection
TO-220 Plastic Package
Absolute Maximum Ratings (T_a = 25 ^OC)
Parameter
Input Voltage
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
Operating Temperature Range
Storage Temperature Range
Symbol
V_I
R_θJC
R_θJA
T_Opr
T_stg
Value
35
5
65
0 to + 125
- 65 to + 150
Units
V
O_C/W
O_C/W
O_C
O_C
Electrical Characteristics
(0 ^OC < T_J < 125 ^OC, I_O = 500 mA, V_I = 19 V, C_I = 0.33 µF, C_O = 0.1 µF, unless otherwise specified)
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
T_J = + 25 ^OC
11.5 12 12.5
Output Voltage
V_O
5 mA  I_O  1 A, P_O  15 W
V_I = 14.5 V to 27 V
V
11.4 12 12.6
Line Regulation ¹⁾
Regline
T_J = + 25 ^OC
V_I = 14.5 V to 30 V
V_I = 16 V to 22 V
-
- 240
mV
-
- 120
Load Regulation ¹⁾
Regload
T_J = + 25 ^OC
I_O = 5 mA to 1.5 A
I_O = 250 mA to 750 mA
-
-
- 240
mV
- 120
Quiescent Current
I_Q
T_J = + 25 ^OC
-
-
8
mA
Quiescent Current Change
I_Q
I_O = 5 mA to 1 A
V_I = 14.5 V to 30 V
-
- 0.5
mA
-
-
1
Output Voltage Drift
V_O/T I_O = 5 mA
-
-1
- mV/^OC
Output Noise Voltage
V_N
f = 10 Hz to 100 KHz, T_A = + 25 ^OC
-
76
-
µV
Ripple Rejection
RR f = 120 Hz, V_I = 15 V to 25 V
55
-
-
dB
Dropout Voltage
V_Drop
I_O = 1 A, T_J = + 25 ^OC
-
2
-
V
Output Resistance
R_O
f = 1 KHz
-
18
-
mΩ
Short Circuit Current
I_SC
V_I = 35 V, T_A = + 25 ^OC
- 230 -
mA
Peak Current
I_PK
T_J = + 25 ^OC
- 2.2 -
A
1) _{Load and line regulation are specified at constant junction temperature, Changes in Vo due to heating effects must be taken}
into account separately. Pulse testing with low duty is used.
SEMTECH ELECTRONICS LTD.
®
Dated : 17/09/2016 Rev: 01