Three-terminal negative voltage regulator
Maximum output current IO: 0.1 A
Output voltage VO: -12 V
Continuous total dissipation
PD : SOT-23-3L 0.35 W (Ta= 25 ℃ )
SOT-89 0.5 W (Ta= 25 ℃ )
LM79L12
SOT-23-3L
SOT-89
3
1
2
1. GND 2. OUT 3. IN
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Symbol
Value
Units
Input Voltage
Vl
-35
V
Operating Junction Temperature Range
TOPR
0~+125
℃
Storage Temperature Range
TSTG
-55~+150
℃
ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JINCTION TEMPERATURE (Vi=19V,Io=40mA,Ci=0.33μF,Co=0.1μF, unless otherwise specified )
Parameter
Symbol
Test conditions
MIN TYP MAX UNIT
Output voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
Dropout Voltage
TYPICAL APPLICATION
25℃
-11.5 -12 -12.5
V
Vo -14.5V≤V l≤-27V, Io=1mA~40mA
-11.4 -12 -12.6
V
0-125℃
Io=1mA~70mA
-11.4 -12 -12.6
V
ΔVo
ΔVo
Iq
ΔIq
ΔIq
VN
RR
Vd
Vi
Io=1mA~100mA
Io=1mA~40mA
-14.5V≤V l≤-27V
-16V≤V l≤-27V
-16V≤V l≤-27V
1mA≤IO≤40mA
10Hz≤f≤100KHz
-15V≤V l≤-25V,f=120Hz
3
2
LM79L12
25℃
24 100
mV
25℃
15
50
mV
25℃
50 250
mV
25℃
40 200
mV
25℃
6.5
mA
0-125℃
1.5
mA
0-125℃
0.1
mA
25℃
80
uV
0-125℃ 37
42
dB
25℃
1.7
V
Vo
1
Ci
0.33μF
C0
0.1μF
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
possible to the regulators.
1
JinYu
semiconductor
www.htsemi.com
Date:2011/05