!
3-Termainal Regulators
!
Output Current Up to 1.5 A
!
No External Components
!
Internal Thermal Overload Protection
!
High Power Dissipation Capability
!
Internal Shot-Circuit Current Limiting
!
Output Transistor Safe-Area
Compensation
DESCRIPTION
This series of fixed-voltage monolithic integrated-circuit
voltage regulators designed for 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 1.5 amperes of
output current. The internal current limiting and thermal
shutdown features of these regulators make them
essentially immune to overload.
ABSOLUTE MAXIMUM RATINGS OVER OPERATING TENPERATURE
RANGE (UNLESS OTHERWISE NOTE
WS7805
PARAMETER
UNIT
Input voltage, V
I
3
5 V
Continuous total dissipation at 25
free-air temperature
2
W
Lead temperature 1.6mm (1/16 inch) from case 10 seconds
260
Storage temperature range, T
stg
-65 to 150
RECOMMEMDED OPERATING CONDITIONS
MIN
MAX
UNIT
Input voltage, V
I
7
Output current, I
O
1.5
A
Operating virtual junction temperature, T
J
0
70
I C
O
(TO-252)
Wing Shing Computer Components Co., (H.K.)Ltd.
Tel:(852)2341 9276 Fax:(852)2797 8153
Homepage:
http://www.wingshing.com
E-mail: wsccltd@hkstar.com
WS7805
POSITIVE-VOLTAGE REGULATORS
25
V
)
WS7805DP
TO-220
WS7805CV
O
C
I
TO-252
WS7805 Electrical characteristics at specified virtual junction
temperature, V
I
=10V, I
O
=500mA (unless otherwise noted)
WS7805
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
25
4.8
5
5.2
Output voltage
I
O
=5mA to1A,
V
I
=7V to 20V, P
15W
0
to 70
4.75
5
5.25
V
V
I
=7V to 25V
3
100
Input regulation
V
I
=8V to12V
25
1
50
Ripple rejection
V
I
=8V to18V
F=120H
Z
0
to 70
62
78
dB
I
O
=5mA to 1.5A
15
100
Output regulation
I
O
=250mA to 750mA
25
5
50
mV
Output resistance
F=1KH
Z
0
to 70
0.017
Temperature coefficient of output
voltage
I
O
=5mA
0
to 70
-1.1
mV/
Output noise voltage
F=10H
Z
to 100 kHz
25
40
V
Dropout voltage
I
O
=1A
25
2.0
V
Bias current
25
4.2
8
mA
V
I
=7V to 25V
1.3
Bias current change
I
O
=5mA to 1A
0
to 70
0.5
Short-circuit output current
25
750
Peak output current
25
2.2
A
WS7805
POSITIVE-VOLTAGE REGULATORS
2
mA
mA
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