UNISONIC TECHNOLOGIES CO., LTD
79LXX
3-TERMINAL 0.1A NEGATIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC
79LXX
family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that required
supply current up to 100mA.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Output current up to 100Ma.
* Fixed output voltage of -5V, -6V, -8V, -9V, -12V,-15V, -18V and
-24V available.
* Thermal overload shutdown protection.
* Short circuit current limiting.
ORDERING INFORMATION
Ordering Number
Package
Halogen Free
Lead Free
SOT-89
79LXXL-AB3-R
79LXXG-AB3-R
79LXXL-S08-R
79LXXG-S08-R
SOP-8
79LXXL-S08-T
79LXXG-S08-T
SOP-8
79LXXL-T92-B
79LXXG-T92-B
TO-92
79LXXL-T92-K
79LXXG-T92-K
TO-92
79LXXL-T92-R
79LXXG-T92-R
TO-92
Notes: 1. XX: Output Voltage, refer to Marking Information.
2. Note: Pin Assignment: I:V
IN
O:V
OUT
G:GND
1
G
O
O
G
G
G
Pin Assignment
2 3 4 5 6 7 8
I O - - - - -
I I N G I I N
I I N G I I N
I O - - - - -
I O - - - - -
I O - - - - -
Packing
Tape Reel
Tape Reel
Tube
Tape Box
Bulk
Tape Reel
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QW-R101-003.J
79LXX
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-89
TO-92
05:-5.0V
06:-6.0V
08:-8.0V
09:-9.0V
10:-10V
12:-12V
15:-15V
18:-18V
24:-24V
UTC
79LXX
G: Halogen Free
L: Lead Free
Voltage Code
Date Code
1
2
3
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2 of 8
QW-R101-003.J
79LXX
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
VALUE
UNIT
V
OUT
= -5~ -9V
-30
V
Input Voltage
V
OUT
= -12~ -15V
-35
V
V
IN
V
OUT
= -18~ -24V
-35
V
SOT-89
350
mW
Power Dissipation
SOP-8
P
D
300
mW
TO-92
625
mW
-40 ~ +85
Operating Temperature
T
OPR
°C
Storage Temperature
T
STG
-40 ~ +125
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
79L05(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V
OUT
V
IN
=-10V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN
-4.8
TYP
-5.0
15
7
3.5
MAX
-5.2
150
60
6.0
UNIT
V
mV
mV
mA
dB
µV
V
IN
=-7~-20V, I
OUT
=40mA
V
IN
=-10V, I
OUT
=1~100mA
V
IN
=-10V, I
OUT
=40mA
V
IN
=-8~-18V, I
OUT
=40mA,
e
IN
=1V
P-P
,f=120Hz
V
IN
=-10V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
41
71
120
79L06(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V
OUT
V
IN
=-12V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN
-5.76
TYP
-6.0
15
7
3.5
MAX UNIT
-6.24
V
150
60
6.0
mV
mV
mA
dB
µV
V
IN
=-8.5~-20V, I
OUT
=40mA
V
IN
=-12V, I
OUT
=1~100mA
V
IN
=-12V, I
OUT
=40mA
V
IN
=-9~ -19V, I
OUT
=40mA
e
IN
=1V
P-P
, f=120Hz
V
IN
=-12V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
41
71
120
79L08(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
Test conditions
Output Voltage
V
OUT
V
IN
=-14V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN
-7.68
TYP
-8.0
24
10
3.5
MAX UNIT
-8.32
V
175
80
6.0
mV
mV
mA
dB
µV
V
IN
=-10.5~-23V, I
OUT
=40mA
V
IN
=-14V, I
OUT
=1~100mA
V
IN
=-14V, I
OUT
=40mA
V
IN
=-11~ -21V, I
OUT
=40mA
e
IN
=1V
P-P
,f=140Hz
V
IN
=-14V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
39
68
190
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3 of 8
QW-R101-003.J
79LXX
ELECTRICAL CHARACTERISTICS(Cont.)
LINEAR INTEGRATED CIRCUIT
79L09(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V
OUT
V
IN
=-15V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN
-8.64
TYP
-9.0
27
12
3.5
MAX UNIT
-9.36
V
200
90
6.0
mV
mV
mA
dB
µV
V
IN
=-12.5~-24V, I
OUT
=40mA
V
IN
=-15V, I
OUT
=1~100mA
V
IN
=-15V, I
OUT
=40mA
V
IN
=-12~ -22V, I
OUT
=40 mA
e
IN
=1V
P-P
,f=150Hz
V
IN
=-15V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
37
64
210
79L12(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V
OUT
V
IN
=-19V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN TYP MAX UNIT
-11.52 -12.0 -12.48
V
36
16
3.5
37
64
210
250
100
6.0
mV
mV
mA
dB
µV
V
IN
=-14.5~-27V, I
OUT
=40mA
V
IN
=-19V, I
OUT
=1~100mA
V
IN
=-19V, I
OUT
=40mA
V
IN
=-15~ -25V, I
OUT
=40mA
e
IN
=1V
P-P
,f=190Hz
V
IN
=-19V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
79L15(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V
OUT
V
IN
=-23V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN
-14.4
TYP
-15.0
45
20
3.5
MAX UNIT
-15.6
V
300
150
6.0
mV
mV
mA
dB
µV
V
IN
=-17.5~-30V, I
OUT
=40mA
V
IN
=-23V, I
OUT
=1~100mA
V
IN
=-23V, I
OUT
=40mA
V
IN
=-18.5~ -28.5V, I
OUT
=40mA
e
IN
=1V
P-P
,f=230Hz
V
IN
=-23V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
34
63
340
79L18(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V
OUT
V
IN
=-27V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN TYP MAX UNIT
-17.28 -18.0 -18.72
V
54
23
3.5
33
60
410
300
170
6.0
mV
mV
mA
dB
µV
V
IN
=-20.5~-33V, I
OUT
=40mA
V
IN
=-27V, I
OUT
=1~100mA
V
IN
=-27V, I
OUT
=40mA
V
IN
=-23~ -33V, I
OUT
=40mA
e
IN
=1V
P-P
,f=270Hz
V
IN
=-27V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 8
QW-R101-003.J
79LXX
ELECTRICAL CHARACTERISTICS(Cont.)
LINEAR INTEGRATED CIRCUIT
79L24(T
J
=25°C, C1=0.33µF, C
OUT
=1µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
V
OUT
V
IN
=-33V, I
OUT
=40mA
Line Regulation
Load Regulation
Quiescent current
Ripple Rejection
Output Voltage Noise
ΔV
OUT
ΔV
IN
× V
OUT
ΔV
OUT
Δ
I
OUT
× V
OUT
MIN TYP MAX UNIT
-23.04 -24.0 -24.96
V
72
30
3.5
31
55
550
350
200
6.0
mV
mV
mA
dB
µV
V
IN
=-27~-38V,Io=40mA
V
IN
=-33V, I
OUT
=1~100mA
V
IN
=-33V, I
OUT
=40mA
V
IN
=-29~ -35V, I
OUT
=40mA
e
IN
=1V
P-P
,f=330Hz
V
IN
=-33V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
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www.unisonic.com.tw
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QW-R101-003.J
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