UNISONIC TECHNOLOGIES CO., LTD
79DXX
3 TERMINAL 0.5A NEGATIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC
79DXX
series of three-terminal negative regulators
are available in TO-252 and TO-251 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.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Output current up to 0.5A
* -5V; -6V;-8V;-12V;-15V;-18V;-24V output voltage available
* Thermal overload protection
* Short circuit protection
*Pb-free plating product number: 79DXXL
ORDERING INFORMATION
Ordering Number
Pin Assignment
Normal
Lead Free Plating
1
2
3
79Dxx-TM3-T
79DxxL-TM3-T
G
I
O
79Dxx-TN3-R
79DxxL-TN3-R
G
I
O
79Dxx-TN3-T
79DxxL-TN3-T
G
I
O
Note: 1. xx: output voltage, refer to Marking Information
2. Pin Code: I: Input
G: GND O: Output
Package
TO-251
TO-252
TO-252
Packing
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2007 Unisonic Technologies Co., Ltd
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QW-R101-012.E
79DXX
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
05
06
08
12
15
18
24
:
:
:
:
:
:
:
-5V
-6V
-8V
-12V
-15V
-18V
-24V
LINEAR INTEGRATED CIRCUIT
MARKING
TO-251
TO-252
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QW-R101-012.E
79DXX
BLOCK DIAGRAM
GND
LINEAR INTEGRATED CIRCUIT
R1
R2
OUTPUT
Voltage
reference
Protection
circuitry
RSC
INPUT
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QW-R101-012.E
79DXX
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
LINEAR INTEGRATED CIRCUIT
UNIT
V
OUT
= -5 ~ -18V
V
Input Voltage
V
IN
V
OUT
= -20 ~ -24V
V
Operating Temperature
T
OPR
°C
Storage Temperature
T
STG
-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.
RATINGS
-35
-40
-40 ~ +85
THERMAL DATA
PARAMETER
Thermal Resistance Junction-Air
Thermal Resistance Junction-Cases
SYMBOL
θ
JA
θ
JC
RATINGS
65
5
UNIT
°C
/W
°C
/W
ELECTRICAL CHARACTERISTICS
(
0<T
J
<125°C, unless otherwise specified)
FOR 79D05
(V
IN
=-10V, I
OUT
=500mA, C
I
=33uF, Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
T
J
=25°C
Output Voltage
V
OUT
5.0mA<I
OUT
<0.5A, P
OUT
<15W
V
IN
=-7V ~ -20V
T
J
=25°C, V
IN
=-7V ~ -25V
Line Regulation
ΔV
OUT
T
J
=25°C, V
IN
=-8V ~ -12V
T
J
=25°C, I
OUT
=5.0mA ~ 0.5A
Load Regulation
ΔVOUT
T
J
=25°C, I
OUT
=5.0mA ~ 200mA
Quiescent Current
I
Q
T
J
=25°C
I
OUT
=5mA ~ 0.5A
Quiescent Current Change
ΔI
Q
V
IN
=-7V ~ -25V
Temperature Coefficient of V
OUT
ΔV
OUT
/ΔT I
OUT
=5mA
Output Noise Voltage
V
N
f=10Hz ~ 100kHz, Ta=25°C
Ripple Rejection
RR
f=120Hz, V
IN
=-8V ~ -18V
Dropout Voltage
V
D
I
OUT
=1.0A, T
J
=25°C
FOR 79D06
(V
IN
=-11V, I
OUT
=500mA, C
I
=2.2uF, Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
T
J
=25°C
Output Voltage
V
OUT
5.0mA<I
OUT
<0.5A, P
OUT
<15W
V
IN
=-8V ~ -21V
T
J
=25°C, V
IN
=-8V ~ -25V
Line Regulation
ΔV
OUT
T
J
=25°C, V
IN
=-9V ~ -13V
T
J
=25°C, I
OUT
=5.0mA ~ 0.5A
Load Regulation
ΔV
OUT
T
J
=25°C, I
OUT
=5.0mA ~ 200mA
Quiescent Current
I
Q
T
J
=25°C
I
OUT
=5mA ~ 0.5A
Quiescent Current Change
ΔI
Q
V
IN
=-8V ~ -25V
Temperature Coefficient of V
OUT
ΔV
OUT
/ΔT I
OUT
=5mA
Output Noise Voltage
eN
F=10Hz ~ 100kHz, Ta=25°C
Ripple Rejection
RR
F=120Hz, V
IN
=-9V ~ -19V
Dropout Voltage
V
D
I
OUT
=0.5A, T
J
=25°C
MIN
-4.80
-4.75
10
10
3
4.3
0.05
0.1
-0.4
100
60
2
TYP
-6.0
TYP
-5.0
MAX
-5.20
-5.25
100
100
50
8
0.5
1.3
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
mV/°C
μV
dB
V
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
mV/°C
μV
dB
V
54
MIN
-5.76
-5.70
MAX
-6.24
-6.30
10
5
10
3
4.3
120
60
120
60
8
0.5
1.3
54
-0.5
130
60
2
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QW-R101-012.E
79DXX
ELECTRICAL CHARACTERISTICS(Cont.)
LINEAR INTEGRATED CIRCUIT
FOR 79D08
(V
IN
=-14V, I
OUT
=500mA, C
I
=2.2uF,C
O
=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
T
J
=25°C
Output Voltage
V
OUT
5.0mA<I
OUT
<0.5A, P
OUT
<15W
V
IN
=-10.5V ~ -23V
T
J
=25°C, V
IN
=-10.5V ~ -25V
Line Regulation
ΔV
OUT
T
J
=25°C, V
IN
=-11.5V ~ -17V
T
J
=25°C, I
OUT
=5.0mA ~ 0.5A
Load Regulation
ΔV
OUT
T
J
=25°C, I
OUT
=5.0mA ~ 200mA
Quiescent Current
I
Q
T
J
=25°C
I
OUT
=5mA ~ 0.5A
Quiescent Current change
ΔI
Q
V
IN
=-11.5V ~ -25V
Temperature Coefficient of V
OUT
ΔV
OUT
/ΔT I
OUT
=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25°C
Ripple Rejection
RR
f=120Hz, V
IN
=-11.5V ~ -21.5V
Dropout Voltage
V
D
I
OUT
=0.5A, T
J
=25°C
FOR 79D09
(V
IN
=-15V, I
OUT
=500mA, C
I
=2.2uF,Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
T
J
=25°C
Output Voltage
V
OUT
5.0mA<I
OUT
<0.5A,P
OUT
<15W
V
IN
=-11.5V ~ -24V
T
J
=25°C, V
IN
=-11.5V ~ - 25 V
Line regulation
ΔV
OUT
T
J
=25°C, V
IN
=-12.5V ~ - 18V
T
J
=25°C, I
OUT
=5.0mA ~ 0.5A
Load Regulation
ΔV
OUT
T
J
=25°C, I
OUT
=5.0mA ~ 200mA
Quiescent Current
I
Q
T
J
=25°C
I
OUT
=5mA ~ 0.5A
Quiescent Current Change
ΔI
Q
V
IN
=-11.5V ~ -26V
Temperature Coefficient of V
OUT
ΔVOUT/ΔT
I
OUT
=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25°C
Ripple Rejection
RR
f=120Hz V
IN
=-12.5V ~ -22.5V
Dropout Voltage
V
D
I
OUT
=0.5A,T
J
=25°C
FOR 79D12
(V
IN
=-18V, I
OUT
=500mA, C
I
=2.2uF,Co=1uF)
PARAMETER
SYMBOL
TEST CONDITIONS
T
J
=25°C
Output Voltage
V
OUT
5.0mA<I
OUT
<0.5A, P
OUT<
15W
V
IN
=-14.5V ~ -27V
T
J
=25°C, V
IN
=-14.5V ~ -30V
Line Regulation
ΔV
OUT
T
J
=25°C, V
IN
=-16V ~ -22V
T
J
=25°C, I
OUT
=5.0mA ~ 0.5A
Load Regulation
ΔV
OUT
T
J
=25°C, I
OUT
=5.0mA ~ 200mA
Quiescent Current
I
Q
T
J
=25°C
I
OUT
=5mA ~ 0.5A
Quiescent Current Change
ΔI
Q
V
IN
=-14.5V ~ -30V
Temperature Coefficient of V
OUT
ΔV
OUT
/ΔT I
OUT
=5mA
Output Noise Voltage
eN
f=10Hz ~ 100kHz, Ta=25°C
Ripple Rejection
RR
f=120Hz, V
IN
=-15V ~ -25V
Dropout Voltage
V
D
I
OUT
=0.5A, T
J
=25°C
MIN
-7.68
-7.60
TYP
-8.0
MAX
-8.32
-8.40
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
mV/°C
μV
dB
V
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
mV/°C
μV
dB
V
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
mV/°C
μV
dB
V
54
10
5
12
4
4.3
0.05
0.1
-0.6
175
60
2
TYP
-9.0
100
80
160
80
8
0.5
1.0
MIN
-8.64
-8.55
MAX
-9.36
-9.45
54
10
5
12
4
4.3
0.05
0.1
-0.6
175
60
2
TYP
-12.0
180
90
180
90
8
0.5
1.0
MIN
-11.52
-11.40
MAX
-12.48
-12.60
54
12
6
12
4
4.3
0.05
0.1
-0.8
200
60
2
240
120
240
120
8
0.5
1.0
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