ABSOLUTE MAXIMUM RATINGS
Power dissipation Internally limited
Input-Output Voltage Differential 38V
Operating Junction Temperature Range -20℃ to +85℃
Storage Temperature –55℃ to +150℃
Lead Temperature(Soldering, 4seconds) 260℃
Output is Short Circuit Protected
ESD rating to be determined
ELECTRICAL CHARACTERRISTISTICS
PARAMETER CONDITIONS MIN TYP MAX UNIT
Line Regulation 3V≦(V
IN
-V
OUT
) ≦40V,I
L
≦20mA 0.02 0.07 %/V
Load Regulation 5mA≦I
OUT
≦100mA 0.3 1.5 %
Reference Voltage
5mA≦I
OUT
≦100mA
P≦625mW
3V≦(V
IN
-V
OUT
)≦40V
1.20 1.25 1.30 V
Adjustment Pin Current 50 100 µA
Adjustment Pin Current Change
5mA≦IL≦100mA,
3V≦(VIN-VOUT)≦40V
P≦625mW
0.2 5 µA
3.5 5
Minimum Load Current
(V
IN
-V
OUT
) ≦40V
3V≦(V
IN
-V
OUT
) ≦15V 1.5
mA
90 200 300
Current Limit
3V≦(V
IN
-V
OUT
) ≦13V
(V
IN
-V
OUT
)=40V 25 50 120
mA
RMS Output Noise % of V
OUT
T
J
=25,10
HZ
≦F ≦10KH
Z
0.03 %
65
Ripple Rejection Ratio V
OUT
=10V,F=120H
Z
,C
ADJ
=10F 58
80
dB
Note1: Unless otherwise noted, these specifications apply: 0 ℃≦T
J
≦70℃ for the WS317L;V
IN
-V
OUT
=5V and I
OUT
= 40mA.
Although power dissipation is internally limited, these specifications are applicable for power dissipation up to
625mW. I
MAX
is 100mA
Note2: Regulation is measure at constant junction temperature, using pulse testing with a low duty cycle. Changes in
output voltage due to heating effects are covered under the specification for thermal regulation.
Note3: Thermal resistance of the TO-92 package is 180℃/W junction to ambient with 0.4” leads from a PC board and 160
℃/W junction to ambient with 0.125” length to a PC board
Wing Shing Computer Components Co., (H.K.)Ltd. Tel:(852)2341 9276 Fax:(852)2797 8153
Homepage: http://www.wingshing.com E-mail: ic@wingshing.com