SE78XX Datasheet, PDF (6/11 Pages) Seaward Electronics Inc. – 1A 3-Terminal Positive Voltage Regulator

SE78XX
1A 3-Terminal Positive Voltage Regulator
Electrical Characteristics(Continue)
SE7812 Electrical Characteristics
（Vcc=19V ;Iout=1A ； Tj=25℃ unless otherwise specified）
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Output
Voltage
Line
Regulation
Load
Regulation
Quiescent
Current
V_OUT
V_RLINE
V_RLOAD
Iq
T_j =25°C
11.75 12 12.25
I_OUT=5mA to 1A,
11.5
V_IN=14.8V to 27V,P_D≤15W
V
12.5
V_IN=14.8V to 27V,
I_OUT=500mA, T_J=25°C
V_IN=19V, I_OUT=5mA to 1A,
T_J=25°C
25 120
mV
40 120
V_IN=19V, I_OUT=0
3.4
6
mA
Quiescent
Current
Change
Ripple
Rejection
Dropout
Voltage
Output Noise
Voltage
∆Iq
PSRR
V_DROP
N_OUT
V_IN=14.8V to 30V,
I_OUT=500mA, T_J=25°C
I_OUT=5mA to 1A, T_J=25°C
V_IN=15V to 25V, f=120Hz,
I_OUT=500mA
∆V_OUT=1%, I_OUT=1A,
T_J=25°C
f=10Hz to 100kHz, T_A=25°C
0.3
0.8
mA
0.08 0.5
mA
60
dB
2
V
10
uV/Vo
Output
Resistance
R_OUT
f=1KHz
11
mΩ
Short Circuit
Current
I_SC
V_IN=35V, T_A=25°C
0.2
A
Peak Output
Current
I_PK
V_IN=18V, T_J=25°C
2.2
A
Temperature
Coefficient of
Output
Voltage
∆V_OUT/ ∆T
(∆V_OUT/V_OUT)/∆T
0.96
mV/℃
80
ppm/℃
Note1:Pulse testing techniques are used to maintain the junction temperature as close to the ambient
temperature as possible, and thermal effects must be taken into account separately.
Note2: This specification applies only for DC power dissipation permitted by absolute maximum ratings
Rev1.0
Preliminary and all contents are subject to change without prior notice.
© Seaward Electronics, Inc., • www.seawardinc.com • Page 7
9/4/2012