UNISONIC TECHNOLOGIES CO.,
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.
Lead-free:
79LXXL
Halogen-free:79LXXG
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
Halogen Free
79Lxx-AB3-R
79LxxL-AB3-R
79LxxG-AB3-R
79Lxx-S08-R
79LxxL-S08-R
79LxxG-S08-R
79Lxx-T92-B
79LxxL-T92-B
79LxxG-T92-B
79Lxx-T92-K
79LxxL-T92-K
79LxxG-T92-K
Notes: 1. xx: Output Voltage, refer to Marking Information.
2. Note: Pin Assignment: I:V
IN
O:V
OUT
G:GND
1
G
O
G
G
Pin Assignment
2 3 4 5 6 7
I O - - - -
I I N G I I
I O - - - -
I O - - - -
8
-
N
-
-
Package
SOT-89
SOP-8
TO-92
TO-92
Packing
Tape Reel
Tape Reel
Tape Box
Bulk
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Copyright © 2010 Unisonic Technologies Co.,
1 of 8
QW-R101-003.H
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
L: Lead Free
L: Halogen Free
Voltage Code
Date Code
1
2
3
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2 of 8
QW-R101-003.H
79LXX
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
V
OUT
= -5~ -9V
V
OUT
= -12~ -15V
V
OUT
= -18~ -24V
SOT-89
SOP-8
TO-92
LINEAR INTEGRATED CIRCUIT
SYMBOL
V
IN
Power Dissipation
P
D
VALUE
-30
-35
-35
350
300
625
-40 ~ +85
UNIT
V
V
V
mW
mW
mW
Operating Junction Temperature Range
T
OPR
°C
Storage Temperature Range
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,
ein=1Vp-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
ein=1Vp-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
ein=1Vp-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.H
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
ein=1Vp-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
ein=1Vp-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
ein=1Vp-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
ein=1Vp-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.H
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
ein=1Vp-p ,f=330Hz
V
IN
=-33V, I
OUT
=40mA
BW=10Hz~100kH
I
Q
RR
eN
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 8
QW-R101-003.H
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