Datasheet

UNISONIC TECHNOLOGIES CO., LTD
79DXX
LINEAR INTEGRATED CIRCUIT
3 TERMINAL 0.5A NEGATIVE
VOLTAGE REGULATOR

DESCRIPTION
The UTC 79DXX series of three-terminal negative regulators
are available in TO-251 and TO-252 packages and with several
fixed output voltage, making them useful in a wide range of
application. Each type employs internal current limiting, thermal
shut-down and safe area protection, making it essentially
indestructible.

FEATURES
* Output current up to 0.5A
* -5V, -6V, -8V, -12V, -15V, -18V, -24V output voltage available
* Thermal overload protection
* Short circuit protection

ORDERING INFORMATION
Note:
Ordering Number
Lead Free
Halogen Free
79DXXL-TM3-T
79DXXG-TM3-T
79DXXL-TN3-T
79DXXG-TN3-T
79DXXL-TN3-R
79DXXG-TN3-R
1. xx: output voltage, refer to Marking Information
2. Pin Code: I: Input
G: GND O: Output
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
Package
TO-251
TO-252
TO-252
Pin Assignment
1
2
3
G
I
O
G
I
O
G
I
O
Packing
Tube
Tube
Tape Reel
1 of 6
QW-R101-012.F
79DXX

MARKING INFORMATION
PACKAGE
TO-251
TO-252

LINEAR INTEGRATED CIRCUIT
VOLTAGE CODE
MARKING
05 : -5V
06 : -6V
08 : -8V
09: -9V
12 : -12V
15 : -15V
18 : -18V
24 : -24V
BLOCK DIAGRAM
GND
R1
R2
OUTPUT
Voltage
reference
Protection
circuitry
RSC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
INPUT
2 of 6
QW-R101-012.F
79DXX

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (TA=25C)
PARAMETER
SYMBOL
RATINGS
UNIT
VOUT= -5 ~ -18V
-35
V
Input Voltage
VIN
VOUT= -20 ~ -24V
-40
V
-40 ~ +85
Operating Temperature
TOPR
C
Storage Temperature
TSTG
-65 ~ +150
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.

THERMAL DATA
PARAMETER
Thermal Resistance Junction-Air
Thermal Resistance Junction-Cases

SYMBOL
θJA
θJC
RATINGS
65
5
UNIT
C/W
C/W
ELECTRICAL CHARACTERISTICS (0<TJ<125C, unless otherwise specified)
FOR 79D05 (VIN=-10V, IOUT=500mA, CI=33uF, CO=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ=25C
Output Voltage
VOUT
5.0mA<IOUT<0.5A, POUT<15W
VIN=-7V ~ -20V
TJ=25C, VIN=-7V ~ -25V
Line Regulation
VOUT
TJ=25C, VIN=-8V ~ -12V
TJ=25C, IOUT=5.0mA ~ 0.5A
Load Regulation
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
Quiescent Current
IQ
TJ=25C
IOUT=5mA ~ 0.5A
Quiescent Current Change
IQ
VIN=-7V ~ -25V
Temperature Coefficient of VOUT
VOUT/T IOUT=5mA
Output Noise Voltage
VN
f=10Hz ~ 100kHz, Ta=25C
Ripple Rejection
RR
f=120Hz, VIN=-8V ~ -18V
Dropout Voltage
VD
IOUT=1.0A, TJ=25C
FOR 79D06 (VIN=-11V, IOUT=500mA, CI=2.2uF, Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ=25C
Output Voltage
VOUT
5.0mA<IOUT<0.5A, POUT<15W
VIN=-8V ~ -21V
TJ=25C, VIN=-8V ~ -25V
Line Regulation
VOUT
TJ=25C, VIN=-9V ~ -13V
TJ=25C, IOUT=5.0mA ~ 0.5A
Load Regulation
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
Quiescent Current
IQ
TJ=25C
IOUT=5mA ~ 0.5A
Quiescent Current Change
IQ
VIN=-8V ~ -25V
Temperature Coefficient of VOUT
VOUT/T IOUT=5mA
Output Noise Voltage
eN
F=10Hz ~ 100kHz, Ta=25C
Ripple Rejection
RR
F=120Hz, VIN=-9V ~ -19V
Dropout Voltage
VD
IOUT=0.5A, TJ=25C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
-4.80
TYP
-5.0
MAX
-5.20
UNIT
V
-5.25
V
10
100
10
3
4.3
0.05
0.1
-0.4
100
60
2
100
50
8
0.5
1.3
mV
mV
mV
mV
mA
mA
mA
mV/C
V
dB
V
TYP
-6.0
MAX
-6.24
UNIT
V
-6.30
V
120
60
120
60
8
0.5
1.3
mV
mV
mV
mV
mA
mA
mA
mV/C
V
dB
V
-4.75
54
MIN
-5.76
-5.70
10
5
10
3
4.3
54
-0.5
130
60
2
3 of 6
QW-R101-012.F
79DXX

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
FOR 79D08 (VIN=-14V, IOUT=500mA, CI=2.2uF,CO=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ=25C
Output Voltage
VOUT
5.0mA<IOUT<0.5A, POUT<15W
VIN=-10.5V ~ -23V
TJ=25C, VIN=-10.5V ~ -25V
Line Regulation
VOUT
TJ=25C, VIN=-11.5V ~ -17V
TJ=25C, IOUT=5.0mA ~ 0.5A
Load Regulation
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
Quiescent Current
IQ
TJ=25C
IOUT=5mA ~ 0.5A
Quiescent Current change
IQ
VIN=-11.5V ~ -25V
Temperature Coefficient of VOUT
VOUT/T IOUT=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25C
Ripple Rejection
RR
f=120Hz, VIN=-11.5V ~ -21.5V
Dropout Voltage
VD
IOUT=0.5A, TJ=25C
FOR 79D09 (VIN=-15V, IOUT=500mA, CI=2.2uF,Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ=25C
Output Voltage
VOUT
5.0mA<IOUT<0.5A,POUT<15W
VIN =-11.5V ~ -24V
TJ=25C, VIN=-11.5V ~ - 25 V
Line regulation
VOUT
TJ=25C, VIN =-12.5V ~ - 18V
TJ=25C, IOUT=5.0mA ~ 0.5A
Load Regulation
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
Quiescent Current
IQ
TJ=25C
IOUT=5mA ~ 0.5A
Quiescent Current Change
IQ
VIN=-11.5V ~ -26V
Temperature Coefficient of VOUT
VOUT/T IOUT=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25C
Ripple Rejection
RR
f=120Hz VIN =-12.5V ~ -22.5V
Dropout Voltage
VD
IOUT=0.5A,TJ=25C
FOR 79D12 (VIN=-18V, IOUT=500mA, CI=2.2uF,Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ=25C
Output Voltage
VOUT
5.0mA<IOUT<0.5A, POUT<15W
VIN=-14.5V ~ -27V
TJ=25C, VIN=-14.5V ~ -30V
Line Regulation
VOUT
TJ=25C, VIN=-16V ~ -22V
TJ=25C, IOUT=5.0mA ~ 0.5A
Load Regulation
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
Quiescent Current
IQ
TJ=25C
IOUT=5mA ~ 0.5A
Quiescent Current Change
IQ
VIN=-14.5V ~ -30V
Temperature Coefficient of VOUT
VOUT/T IOUT=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25C
Ripple Rejection
RR
f=120Hz, VIN=-15V ~ -25V
Dropout Voltage
VD
IOUT=0.5A, TJ=25C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
-7.68
TYP
-8.0
MAX
-8.32
UNIT
V
-8.40
V
10
5
12
4
4.3
0.05
0.1
-0.6
175
60
2
100
80
160
80
8
0.5
1.0
mV
mV
mV
mV
mA
mA
mA
mV/C
V
dB
V
TYP
-9.0
MAX
-9.36
UNIT
V
-9.45
V
10
5
12
4
4.3
0.05
0.1
-0.6
175
60
2
180
90
180
90
8
0.5
1.0
mV
mV
mV
mV
mA
mA
mA
mV/C
μV
dB
V
TYP
-12.0
MAX
-12.48
UNIT
V
-12.60
V
240
120
240
120
8
0.5
1.0
mV
mV
mV
mV
mA
mA
mA
mV/C
V
dB
V
-7.60
54
MIN
-8.64
-8.55
54
MIN
-11.52
-11.40
54
12
6
12
4
4.3
0.05
0.1
-0.8
200
60
2
4 of 6
QW-R101-012.F
79DXX

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
FOR 79D15 (VIN=-23V, IOUT=500mA, CI=2.2uF, Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ=25C
Output Voltage
VOUT
5.0mA<IOUT<0.5A, POUT<15W
Vi=-17.5V ~ -30V
TJ=25C, VIN=-17.5V ~ -30V
Line Regulation
VOUT
TJ=25C, VIN=-20V ~ -26V
TJ=25C, IOUT=5.0mA ~ 0.5A
Load Regulation
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
Quiescent Current
IQ
TJ=25C
IOUT=5mA ~ 0.5A
Quiescent Current Change
IQ
VIN=-17.5V ~ -30.5V
Temperature Coefficient of VOUT
VOUT/T IOUT=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25C
Ripple Rejection
RR
f=120Hz, VIN=-18.5V ~ -28.5V
Dropout Voltage
Vd
IOUT=0.5A, TJ=25C
FOR 79D18 (VIN=-27V, IOUT=500mA, CI=2.2uF, Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ=25C
Output Voltage
VOUT
5.0mA<IOUT<0.5A, POUT<15W
VIN=-21V ~ -33V
TJ=25C, VIN=-21V ~ -33V
Line Regulation
VOUT
TJ=25C, VIN=-24V ~ -30V
TJ=25C, IOUT=5.0mA ~ 0.5A
Load Regulation
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
Quiescent Current
IQ
TJ=25C
IOUT=5mA ~ 0.5A
Quiescent Current Change
IQ
VIN=-21V ~ -32V
Temperature Coefficient of VOUT
VOUT/T IOUT=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25C
Ripple Rejection
RR
f=120Hz, VIN=-22V ~ -32V
Dropout Voltage
VD
IOUT=0.5A, TJ=25C
MIN
-14.40
TYP
-15.0
MAX
-15.60
UNIT
V
-15.75
V
12
6
12
4
4.3
0.05
0.1
-0.9
250
60
2
300
150
300
150
8
0.5
1.0
mV
mV
mV
mV
mA
mA
MA
mV/C
V
dB
V
TYP
-18.0
MAX
-18.72
UNIT
V
-18.90
V
360
180
360
180
8
0.5
1.0
mV
mV
mV
mV
mA
mA
mA
mV/C
V
dB
V
MAX
-24.96
UNIT
V
-25.20
V
480
240
480
240
8
0.5
1.0
mV
mV
mV
mV
mA
mA
mA
mV/C
V
dB
V
-14.25
54
MIN
-17.28
-17.10
15
8
15
5.0
4.3
54
-1
300
60
2
FOR 79D24 (VIN=-33V, IOUT=500mA, CI=2.2uF, Co=1uF)
PARAMETER
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Temperature Coefficient of VOUT
Output Noise Voltage
Ripple Rejection
Dropout Voltage
SYMBOL
TEST CONDITIONS
TJ=25C
VOUT
5.0mA<IOUT<0.5A, POUT<15W
VIN=-27V ~ -38V
TJ=25C, VIN=-27V ~ -38V
VOUT
TJ=25C, VIN=-30V ~ -36V
TJ=25C, IOUT=5.0mA ~ 0.5A
VOUT
TJ=25C, IOUT=5.0mA ~ 200mA
IQ
TJ=25C
IOUT=5mA ~ 0.5A
IQ
VIN=-27V ~ -38V
VOUT/T IOUT=5mA
eN
f=10Hz ~ 100kHz, Ta=25C
RR
f=120Hz, VIN=-28V to -38V
VD
IOUT=0.5A,TJ=25C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
-23.04
TYP
-24.0
-22.80
15
8
15
5.0
4.3
54
-1
400
60
2
5 of 6
QW-R101-012.F
79DXX

LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUITS
Fig.1 Fixed output regulator
+20V
UTC 78D15
1
+15V
3
0.33 F
2
0.1F
1N4001
2.2 F
1
1 F
1N4001
2
UTC 79D15
3
-20V
-15V
Fig.2 Split power supply (±15V, 0.5A)
C3
2.5 F
C1
2.2 F
R1
C2
1 F
1
R2
2
UTC 79DXX
3
-VOUT
-VIN
Fig.3 Circuit for increasing output voltage
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 6
QW-R101-012.F