FIXED VOLTAGE REGULATOR
LM78L12
LM78L12 ELECTRICAL CHARACTERISTICS
(At specified virtual junction temperature, VI=19V, IO=40㎃ (unless otherwise noted)
Test condition *
Characteistic
Symbol
Min.
11.5
Typ.
12
Max.
12.5
Unit
V
25℃
1㎃≤IO≤40㎃
14V≤VI≤27V
1㎃≤IO≤70㎃
14.5V≤VI≤27V
16V≤VI≤27V
1㎃≤IO≤100㎃
1㎃≤IO≤40㎃
Output voltage **
VOUT
11.4
11.4
12
12.6
0℃ ∼ 125℃
12
55
49
22
13
4.3
12.6
250
200
100
50
㎷
㎷
㎃
㎃
Line regulation
Load regulation
Bias current
Reg line
Reg load
IB
25℃
25℃
25℃
6.5
6
125℃
16V≤VI≤27V
1㎃≤IO≤40㎃
1.5
0.1
Bias current change
△IB
0℃ ∼ 125℃
Output noise voltage
Ripple rejection
VN
RR
VD
10Hz≤f≤100kHz
25℃
25℃
25℃
70
42
㎶
㏈
V
15V≤VI≤25V
f=120Hz
37
Dropout voltage
1.7
Notes
*. Pulse testing techniques are used to maintain the junction temperature as close to the
ambient temperature as possible.
Thermal effects must be taken into account separately.
All characteristics are measured with a 0.33㎌ capacitor across the input and a 0.1㎌
capacitor across the output.
**. This specification applies only for DC power dissipation permitted by absolute maximum
ratings.
Mar. 2006 - Rev 06
HTC
35
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
