UTC79LXX
3-TERMINAL 0.1A NEGATIVE
VOLTAGE REGULATORS
DESCRIPTION
The UTC79LXX family is monolithic fixed voltage
regulator integrated circuit .They are suitable for
applications that required supply current up to
100mA.
LI
NEAR I
NTEGRATED CI
RCUI
T
1
FEATURES
*Output current up to 100mA
*Fixed output voltage of -5V, -6V, -8V, -9V, -10V, -
12V,-15V ,-18V and -24V available
*Thermal overload shutdown protection
*Short circuit current limiting
1:GND; 2:Input 3:Output
TO-92
EQUIVALENT CIRCUIT
GND
OUTPUT
INPUT
ABSLOUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified))
PARAMETERS
Input voltage(for Vo=-5~-9V)
(for Vo=-12~-15V)
(for Vo=-18~-24V)
Power Dissipation
Operating Junction Temperature
Range
Storage Temperature Range
SYMBOL
V
I
V
I
V
I
P
D
T
OPR
T
STG
VALUE
-30
-35
500
-30~+75
-40~+125
UNITS
V
V
mW
°C
°C
YOUW ANG ELECTRONI CO.
CS
LTD
1
UTC79LXX
LI
NEAR I
NTEGRATED CI
RCUI
T
UTC79L05 ELECTRICAL CHARACTERISTICS
(Tj=25°C,C1=0.33µF,Co=1.0µF,unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
Test conditions
V
IN
=-10V,Io=40mA
V
IN
=-7~-20V,Io=40mA
V
IN
=-10V,Io=1~100mA
V
IN
=-10V,Io=40mA
V
IN
=-8~-18V,
Io=40mA,
e
in
=1Vp-p ,f=120Hz
V
IN
=-10V,
BW=10Hz~100kH,Io=40mA
MIN
-4.8
TYP
-5.0
15
7
3.5
71
120
MAX
-5.2
150
60
6.0
UNIT
V
mV
mV
mA
dB
µV
41
UTC79L06 ELECTRICAL CHARACTERISTICS
(Tj=25°C,C1=0.33µF,Co=1.0µF,unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
Test conditions
V
IN
=-12V,Io=40mA
V
IN
=-8.5~-20V,Io=40mA
V
IN
=-12V,Io=1~100mA
V
IN
=-12V,Io=40mA
V
IN
=-9~ -19V,
Io=40mA,
e
in
=1Vp-p ,f=120Hz
V
IN
=-12V,
BW=10Hz~100kH,Io=40mA
MIN
-5.76
TYP
-6.0
15
7
3.5
71
120
MAX
-5.2
150
60
6.0
UNIT
V
mV
mV
mA
dB
µV
41
UTC79L08 ELECTRICAL CHARACTERISTICS
(Tj=25°C,C1=0.33µF,Co=1.0µF,unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
Test conditions
V
IN
=-14V,Io=40mA
V
IN
=-10.5~-23V,Io=40mA
V
IN
=-14V,Io=1~100mA
V
IN
=-14V,Io=40mA
V
IN
=-11~ -21V,
Io=40mA,
e
in
=1Vp-p ,f=140Hz
V
IN
=-14V,
BW=10Hz~100kH,Io=40mA
MIN
-7.68
TYP
-8.0
24
10
3.5
68
190
MAX
-8.32
175
80
6.0
UNIT
V
mV
mV
mA
dB
µV
39
YOUW ANG ELECTRONI CO.
CS
LTD
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UTC79LXX
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
LI
NEAR I
NTEGRATED CI
RCUI
T
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
UTC79L09 ELECTRICAL CHARACTERISTICS
Test conditions
V
IN
=-15V,Io=40mA
V
IN
=-12.5~-24V,Io=40mA
V
IN
=-15V,Io=1~100mA
V
IN
=-15V,Io=40mA
V
IN
=-12~ -22V,
Io=40mA,
e
in
=1Vp-p ,f=150Hz
V
IN
=-15V,
BW=10Hz~100kH,Io=40mA
MIN
-8.64
TYP
-9.0
27
12
3.5
64
210
MAX
-9.36
200
90
6.0
UNIT
V
mV
mV
mA
dB
µV
37
UTC79L12 ELECTRICAL CHARACTERISTICS
(Tj=25°C,C1=0.33µF,Co=1.0µF,unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
Test conditions
V
IN
=-19V,Io=40mA
V
IN
=-14.5~-27V,Io=40mA
V
IN
=-19V,Io=1~100mA
V
IN
=-19V,Io=40mA
V
IN
=-15~ -25V,
Io=40mA,
e
in
=1Vp-p ,f=190Hz
V
IN
=-19V,
BW=10Hz~100kH,Io=40mA
MIN
-11.5
TYP
-12.0
36
16
3.5
64
210
MAX
-12.5
250
100
6.0
UNIT
V
mV
mV
mA
dB
µV
37
UTC79L15 ELECTRICAL CHARACTERISTICS
(Tj=25°C,C1=0.33µF,Co=1.0µF,unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
Test conditions
V
IN
=-23V,Io=40mA
V
IN
=-17.5~-30V,Io=40mA
V
IN
=-23V,Io=1~100mA
V
IN
=-23V,Io=40mA
V
IN
=-18.5~ -28.5V,
Io=40mA,
e
in
=1Vp-p ,f=230Hz
V
IN
=-23V,
BW=10Hz~100kH,Io=40mA
MIN
-14.4
TYP
-15.0
45
20
3.5
63
340
MAX
-15.6
300
150
6.0
UNIT
V
mV
mV
mA
dB
µV
34
YOUW ANG ELECTRONI CO.
CS
LTD
3
UTC79LXX
LI
NEAR I
NTEGRATED CI
RCUI
T
UTC79L18 ELECTRICAL CHARACTERISTICS
(Tj=25°C,C1=0.33µF,Co=1.0µF,unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
Test conditions
V
IN
=-27V,Io=40mA
V
IN
=-20.5~-33V,Io=40mA
V
IN
=-27V,Io=1~100mA
V
IN
=-27V,Io=40mA
V
IN
=-23~ -33V,
Io=40mA,
e
in
=1Vp-p ,f=270Hz
V
IN
=-27V,
BW=10Hz~100kH,Io=40mA
MIN
-17.3
TYP
-18.0
54
23
3.5
60
410
MAX
-18.7
300
170
6.0
UNIT
V
mV
mV
mA
dB
µV
33
UTC79L24 ELECTRICAL CHARACTERISTICS
(Tj=25°C,C1=0.33µF,Co=1.0µF,unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Noise Voltagre
Symbol
Vo
Vo-V
IN
Vo-Io
I
Q
RR
V
NO
Test conditions
V
IN
=-33V,Io=40mA
V
IN
=-27~-38V,Io=40mA
V
IN
=-33V,Io=1~100mA
V
IN
=-33V,Io=40mA
V
IN
=-29~ -35V,
Io=40mA,
e
in
=1Vp-p ,f=330Hz
V
IN
=-33V,
BW=10Hz~100kH,Io=40mA
MIN
-23.0
TYP
-24.0
72
30
3.5
55
550
MAX
-25.0
350
200
6.0
UNIT
V
mV
mV
mA
dB
µV
31
TYPICAL APPLICATION CIRCUIT
Vi
Vo
2
UTC79LXX
1
3
C1
0.33µF
C0
1.0µF
YOUW ANG ELECTRONI CO.
CS
LTD
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UTC79LXX
Fig.1 Power dissipation vs.
ambient temperature
500
LI
NEAR I
NTEGRATED CI
RCUI
T
Fig.2 Input Voltage vs.
Output Voltage
Fig.3 Load Characteristics
(Tj=25
k
)
TYPICAL PARAMETERS PERFORAMCES
Power Dissiapation(mW)
-40
-40
Output Voltage(V)
400
Output Voltage(V)
TO-92
-30
UTC79L24
-20
-30
V
IN
=-33V
UTC79L24
300
-20
200
SOT-89
UTC79L15
-10
UTC79L15
-10
V
IN
=-23V
V
IN
=-10V
UTC79L09
UTC79L05
UTC79L05
100
0
25
50
75
100
125
0
0
50
100
150
200
250
Ambient temperature(
k
)
Output Current(mA)
Fig.4 Short Circuit Current
(Tj=25
k
)
300
-40
Fig.5 Output Voltage vs.
Junction temperature
Fig.6 Output Voltage vs.
ambient temperature
5.2
8.2
Output Voltage(V)
Output Current(mA)
-30
Output Voltage(V)
UTC79L24
V
IN
=-33V
-5.1
UTC79L08
-8.1
200
-20
-5.0
UTC79L15
-10
V
IN
=-23V
V
IN
=-10V
UTC79L05
-8.0
UTC79L05
-4.9
-7.9
100
0
0
-10
-20
-30
-40
-25
25
75
125
175
-4.8
-50
0
50
100
150
-7.8
Dropout Voltage(V)
Ambient temperature(
k
)
Ambient temperature(
k
)
Fig.7 UTC79L05 Dropout
Characteristics (Tj=25
k
)
-5.0
-8.0
Fig.8 UTC79L08 Dropout
Characteristics (Tj=25
k
)
5
Fig.9 Current vs. Input
Voltage(Io=0mA,Tj=25
k
)
A
Io
=5
m
A
Io
=5
m
4
Quiescent current(mA)
UTC79L24
Output Voltage(V)
Io
=4
0m
A
Output Voltage(V)
Io
=4
0m
A
3
-4.5
-7.5
Io
=1
00
m
Io
=1
00
m
UTC79L05
A
A
2
1
0
-5.5
-6.0
-6.5
-8.5
-9.0
-9.5
0
-10
-20
-30
-40
Input Voltage(V)
Input Voltage(V)
Input Voltage(V)
YOUW ANG ELECTRONI CO.
CS
LTD
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