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SI7918A Datasheet Preview

SI7918A Datasheet

3-Terminal Negative Voltage Regulator

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Elektronische Bauelemente
SI79XXA
3-Terminal
Negative Voltage Regulator
Description
The SI79XXA series of fixed-voltage monolithic intergrated-
circuit voltage regulators designed to complement Series
SI78XXA 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 1.5A 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,
thesedevices 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,-10V,-12V,-15V,-18V,-24V Output Voltage Available
*Output Transistor Safe-Area Compensation
*No External Components
*Internal Thermal Overload Protection
*Internal Short-Circuit Current Limiting
*High Power Dissipation Capability
TO-251
REF.
A
B
C
D
E
F
Millimeter
Min. Max.
6.40 6.80
5.20 5.50
6.80 7.20
7.20 7.80
2.30 REF.
0.60 0.90
REF.
G
H
J
K
L
M
Millimeter
Min. Max.
0.50 0.70
2.20 2.40
0.45 0.60
0.45 0.60
0.90 1.50
5.40 5.80
Absolute Maximum Ratings
Parameter
Input Voltage
SI7905A~18A
SI7924A
Output Current
Operating Junction And Storage Temperature Range
Thermal Resistance Junction-Air (RθJA)
Thermal Resistance Junction-Cases (RθJC)
Typical Application
SI79XXA
Symbol
VIN
VIN
IO
Tj, Tstg
RθJA
RθJC
Ratings
-35
-40
1.5
-55~+150
125
12.5
Unit
V
V
A
oC
W/ oC
W/ oC
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 1 of 5




SeCoS

SI7918A Datasheet Preview

SI7918A Datasheet

3-Terminal Negative Voltage Regulator

No Preview Available !

Elektronische Bauelemente
SI79XXA
3-Terminal
Negative Voltage Regulator
Electrical Characteristics
SI7905A (Refer to the test circuits, Tj=0~125 , Io=500mA, Vin=-10V, Cin=2 F, Co=1 F unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
VO
A-Rank (3%)
B-Rank (5%)
-4.85
-4.75
-5.0
-
-5.15
-5.25
V
Vin=-10V, Io=500mA, Tj=25
-7.5V Vin -20V, 5mA Io 1A, PD 15W
VO
(Line Regulation)
-
-
12.5
4
50
15
mV
-7V Vin -25V, Io=500mA, Tj=25
-8V Vin -12V, Io=500mA, Tj=25
VO
(Load Regulation)
-
-
15
5
100
50
mV
Vin=-10V, 5mA Io 1.5A, Tj=25
Vin=-10V, 250mA Io 750mA, Tj=25
IQ - - 6.0 mA Vin=-10V, Io=500mA, Tj=25
IQ
-
-
-
-
0.5
0.5
mA
Vin=-10V, 5mA Io 1A
-7V Vin -25V, Io=500mA
Vn
- 125 -
V 10Hz f 100KHz, Tj=25
RR
54 -
- dB -8V Vin -18V, f=120Hz, Tj=25
VD
- 1.1 -
V Io=1A, Tj=25
Ipk
- 2.1 -
A Tj=25
Vo / Tj - -0.4 - mV/ Io=5mA, 0 Tj 125
SI7906A (Refer to the test circuits, Tj=0~125 , Io=500mA, Vin=-11V, Cin=2 F, Co=1 F unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Test Conditions
VO
A-Rank (3%)
B-Rank (5%)
-5.82
-5.70
-6.0
-
-6.18
-6.30
V
Vin=-11V, Io=500mA, Tj=25
-8V Vin -21V, 5mA Io 1A, PD 15W
VO
(Line Regulation)
-
-
12.5 120 mV -8V Vin -25V, Io=500mA, Tj=25
4 60
-9V Vin -13V, Io=500mA, Tj=25
VO
(Load Regulation)
-
-
15
5
120
60
mV
Vin=-11V, 5mA Io 1.5A, Tj=25
Vin=-11V, 250mA Io 750mA, Tj=25
IQ - - 6.0 mA Vin=-11V, Io=500mA, Tj=25
IQ - - 0.5 mA Vin=-11V, 5mA Io 1A
- - 1.3
-8V Vin -25V, Io=500mA
Vn
- 150 -
V 10Hz f 100KHz, Tj=25
RR
54 -
- dB -9V Vin -19V, f=120Hz, Tj=25
VD
- 1.1 -
V Io=1A, Tj=25
Ipk
- 2.1 -
A Tj=25
Vo / Tj - -0.4 - mV/ Io=5mA, 0 Tj 125
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 2 of 5


Part Number SI7918A
Description 3-Terminal Negative Voltage Regulator
Maker SeCoS
Total Page 5 Pages
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