UTCLM79XX 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
-23.04
-24
-24.96
V
Tj=25°C
Output voltage
Vo
5.0mA<Io<1.0A,Po<15W
Vi=-27V to -38V
-22.80
-25.20
480
240
480
240
6
V
mV
mV
mV
mV
mA
mA
mA
mV/°C
µV
Line regulation
Load regulation
15
8
15
5.0
3
∆Vo
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
∆Vo
Quiescent current
Quiescent current change
IQ
∆IQ
Io=5mA to 1.0A
0.5
Vi=-27V to -38V
1.0
Output voltage drift
Output noise voltage
Ripple rejection
Dropout voltage
Short circuit current
peak current
Io=5mA
-1
400
60
∆Vo/∆T
VN
f=10hz to 100kHz,Ta=25°C
f=120Hz, Vi=-28V to -38V
Io=1.0A,Tj=25°C
RR
54
dB
Vo
2
V
Isc
300
2.2
mA
A
Vi=-35V,Ta=25°C
Tj=25°C
Ipk
APPLICATION CIRCUITS
C1
2.2
C0
µ
F
1 µF
1
-Vi
-Vo
2
3
UTC LM79XX
Fig.1 Fixed output regulator
+20V
+15V
UTC LM7815
3
1
2
0.33
µ
F
0.1
µ
F
1N4001
1N4001
2.2
µ
F
2
1
1 µF
3
UTC LM7915
-20V
-15V
Fig.2 Split power supply(+-15V,1A)
UTC UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R101-007,B
UTC [ Unisonic Technologies ]
