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ISSUED DATE :2006/01/10
REVISED DATE :
GU79XX
3-TERMINAL NEGATIVE VOLTAGE REGULATORS
Description
The GU79XX series of fixed-voltage monolithic integrated-circuit voltage regulators are designed to complement
Series GU78XX in a wide range of applications. These applications include on-card regulation for elimination
of noise and distribution problems associated with single-point regulation. Each of these regulators can deliver
up to 1.0 amperes of output current. The internal current limiting and thermal shutdown features of these
regulators make them essentially immune to overload. In addition to use as fixed-voltage regulators, these
devices can be used with external components to obtain adjustable output voltage and current and also as the
power pass element in precision regulators.
Features
-5V, -6V, -8V, -9V, -12V, -15V, -18V, -24V output voltage available
Internal Thermal Overload Protection
Internal Short-Circuit Current Limiting
No External Components
Output Transistor Safe-Area Compensation
Package Dimensions
Absolute Maximum Ratings (Ta=25 )
Parameter
Input voltage
Output current
Operating junction temperature range
Storage temperature range
Thermal resistance junction-air (R JA)
Thermal resistance junction-cases (R JC)
GU7905 ~ 18
GU7924
REF.
A
b
L4
c
L3
L1
E
Millimeter
Min. Max.
REF.
4.40 4.80 c2
0.76 1.00 b2
0.00 0.30 B D
0.36 0.5
e
1.50 REF.
L
2.29 2.79
9.80 10.4 L2
Millimeter
Min. Max.
1.25 1.45
1.17 1.47
8.6 9.0
2.54 REF.
14.6 15.8
0˚ 8˚
1.27 REF.
Ratings
-35V
-40V
1.0
0 ~ 150
-55 ~ 150
65
5
Unit
V
V
A
/W
/W
GU79XX
Page: 1/5
ISSUED DATE :2006/01/10
REVISED DATE :
Electrical Characteristics
GU7905 (Refer to the test circuits, Tj=0~125 , Io=500mA, Vin=-10V, Cin=2.2 F, Co=1 F unless otherwise specified)
Symbol
VO A-Rank (3%)
B-Rank (5%)
VO
(Line Regulation)
VO
(Load Regulation)
IQ
IQ
Vn
RR
VD
Ipk
Vo / Tj
Min.
-4.85
-4.75
-
-
-
-
-
-
-
-
54
-
-
-
Typ.
-5.0
-
10
-
10
3
-
-
-
100
-
2
2.2
-0.4
Max.
-5.15
-5.25
50
25
100
50
6.0
0.5
1.3
-
-
-
-
-
Unit
V
mV
mV
mA
mA
V
dB
V
A
mV/
Test Conditions
Vin=-10V, Io=500mA, Tj=25
-7V Vin -20V, 5mA Io 1A, PD 15W
-7V Vin -25V, Io=500mA, Tj=25
-8V Vin -12V, Io=500mA, Tj=25
Vin=-10V, 5mA Io 1A, Tj=25
Vin=-10V, 250mA Io 750mA, Tj=25
Vin=-10V, Io=500mA, Tj=25
Vin=-10V, 5mA Io 1A
-7V Vin -25V, Io=500mA
10Hz f 100KHz, Ta=25
-8V Vin -18V, f=120Hz, Tj=25
Io=1A, Tj=25
Tj=25
Io=5mA, 0 Tj 125
GU7906 (Refer to the test circuits, Tj=0~125 , Io=500mA, Vin=-11V, Cin=2.2 F, Co=1 F unless otherwise specified)
Symbol
VO A-Rank (3%)
B-Rank (5%)
VO
(Line Regulation)
VO
(Load Regulation)
IQ
IQ
Vn
RR
VD
Ipk
Vo / Tj
Min.
-5.82
-5.70
-
-
-
-
-
-
-
-
54
-
-
-
Typ.
-6.0
-
10
5
10
3
-
-
-
130
-
2
2.2
-0.5
Max.
-6.18
-6.30
120
60
120
60
6.0
0.5
1.3
-
-
-
-
-
Unit
V
mV
mV
mA
mA
V
dB
V
A
mV/
Test Conditions
Vin=-11V, Io=500mA, Tj=25
-8V Vin -21V, 5mA Io 1A, PD 15W
-8V Vin -25V, Io=500mA, Tj=25
-9V Vin -13V, Io=500mA, Tj=25
Vin=-11V, 5mA Io 1A, Tj=25
Vin=-11V, 250mA Io 750mA, Tj=25
Vin=-11V, Io=500mA, Tj=25
Vin=-11V, 5mA Io 1A
-8V Vin -25V, Io=500mA
10Hz f 100KHz, Ta=25
-9V Vin -19V, f=120Hz, Tj=25
Io=1A, Tj=25
Tj=25
Io=5mA, 0 Tj 125
GU79XX
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