UTC LM79XX
LINEAR INTEGRATED CIRCUIT
UTC7924 ELECTRICAL CHARACTERISTICS
(Refer to test circuits, 0<Tj<125
°C
,Io=500mA,Vi=-33V,Ci=2.2uF,Co=1uF,unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Ripple rejection
Dropout voltage
Short circuit current
peak current
Vo
∆Vo
∆Vo
I
Q
∆I
Q
∆Vo/∆T
V
N
RR
Vo
Isc
Ipk
Tj=25°C
5.0mA<Io<1.0A,Po<15W
Vi=-27V to -38V
Tj=25°C,Vi=-27V to -38V
Tj=25°C,Vi=-30V to -36V
Tj=25°C,Io=5.0mA to 1.5A
Tj=25°C,Io=250mA to 750mA
Tj=25°C
Io=5mA to 1.0A
Vi=-27V to -38V
Io=5mA
f=10hz to 100kHz,Ta=25°C
f=120Hz, Vi=-28V to -38V
Io=1.0A,Tj=25°C
Vi=-35V,Ta=25°C
Tj=25°C
-23.04
-22.80
15
8
15
5.0
3
-24
-24.96
-25.20
480
240
480
240
6
0.5
1.0
V
V
mV
mV
mV
mV
mA
mA
mA
mV/°C
µV
dB
V
mA
A
54
-1
400
60
2
300
2.2
APPLICATION CIRCUITS
C1
2.2
µF
1
-Vi
2
C0
1
µF
-Vo
UTC LM79XX
3
Fig.1 Fixed output regulator
+20V
1
0.33
µF
+15V
3
0.1
µF
1N4001
UTC LM7815
2
2.2
µF
2
-20V
1
1
µF
3
1N4001
UTC LM7915
-15V
Fig.2 Split power supply(+-15V,1A)
UTC
UNISONIC TECHNOLOGIES
CO., LTD.
5
QW-R101-007,B
UTC-IC [ UNISONIC TECHNOLOGIES ]
