CJ78M12 Datasheet, PDF (1/4 Pages) Jiangsu Changjiang Electronics Technology Co., Ltd – Three-terminal positive voltage regulator

JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-252-2L Plastic-Encapsulate Voltage Regulators
CJ78M12 Three-terminal positive voltage regulator
FEATURES
z Maximum output current
I_OM: 0.5 A
z ^{Output voltage}
V_O: 12 V
z ^{Continuous total dissipation}
P_D: 1.25 W (T_a= 25 ℃ )
TO-252-2L
1.IN
2.GND
3.OUT
2
1
3
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Symbol
Value
Unit
Input Voltage
V_i
35
V
Thermal Resistance from Junction to Ambient
Operating Junction Temperature Range
Storage Temperature Range
R_θJA
T_OPR
TSTG
80
-25~+125
-65 ~+150
℃/W
℃
℃
ELECTRICAL CHARACTERISTICS (Vi=19V,Io=350mA, Ci=0.33μF,Co=0.1μF, unless otherwise specified )
Parameter
Symbol
Test conditions
Min Typ Max Unit
Output Voltage
25℃
11.5 12
12.5
V
Vo
14.5≤V_i≤27V, Io=5mA-350mA
-25-125℃ 11.4 12
12.6
V
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
* Pulse test.
TYPICAL APPLICATION
ΔVo
ΔVo
Iq
ΔIq
ΔIq
V_N
RR
Vd
Isc
Ipk
Vi
Io=5mA-500mA
25℃
25
240 mV
Io=5mA-200mA
25℃
10
120 mV
14.5V≤V_i≤30V, Io=200mA
25℃
10
100 mV
16V≤V_i≤30V, Io=200mA
25℃
3
50
mV
25℃
4.6
6
mA
14.5V≤V_i≤30V, Io=200mA
-25-125℃
0.8 mA
5mA≤I_O≤350mA
-25-125℃
0.5 mA
10Hz≤f≤100KHz
25℃
75
μV/Vo
15≤V_i≤25V,f=120Hz,Io=300mA -25-125℃ 55
80
dB
Io=350mA
25℃
2
V
Vi=19V
25℃
240
mA
25℃
0.7
A
1
3
Vo
CJ78M12
Ci
2
0.33μF
Co
0.1μF
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
possible to the regulators.
www.cj-elec.com
1
E,Jun,2016