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1.0A Adjustable Positive Voltage Regulator
Rev. A/DX 2007-06-04
LA317
www.taitroncomponents.com
Page 3 of 9
Absolute Maximum Ratings (Ta=25° C, unless otherwise specified)
Symbol
Description
Ratings
Unit
VIN-VOUT
Input - Output Voltage Differential
15
V
IO
Max. Output Current
1
A
TJ
Operating Junction Temperature
150
° C
TOPR
Operating Temperature Range
0 ~ 125
° C
TSTG
Storage Temperature Range
-65 ~ 150
° C
TLEAD
Lead Temperature (Soldering, 10sec.)
300
° C
ESD
ESD, Human Body Model (Max.)
4000
V
Electrical Characteristics
(Typicals and limits apply for TJ=25ºC, P≤ Maximum Power Dissipation unless otherwise specified)(Note)
LA317
Symbol
Description
Min.
Typ.
Max.
Unit
Conditions
VREF
Reference Input Voltage
1.20
1.25
1.30
V
10mA≤IOUT≤1A
3V
≤
VIN-VOUT≤10V,
∆VOUT/VOUT Line Regulation
-
0.01
0.04
%/V
IOUT≤20mA, 3V≤VIN-VOUT≤10V,
∆VOUT
Load Regulation
-
0.2
0.4
%
VIN-VOUT=2V, 10mA≤IOUT≤1A
Thermal Regulation
0.04
0.07
%/W
20ms Pulse
∆V
Dropout Voltage
-
1.2
1.3
V
IOUT=1A
ILIMIT
Current Limit
1.2
1.5
1.8
A
VIN-VOUT=2V
IADJ
Adjustable Pin Current
-
50
100
µA
-
∆IADJ
Adjustable Pin Current
Change
-
0.2
5
µA
1.4V≤
VIN-VOUT≤10V,
10mA≤IOUT≤1A
IL(MIN)
Minimum Load Current
-
3.5
10
mA
3V≤
VIN-VOUT≤15V
PSRR
Ripple Rejection
60
75
-
dB
f=120Hz, COUT=1µF Tantalum,
VIN-VOUT=3V, IOUT=1A
-
Temperature Stability
-
1
-
%
-
-
Long Term Stability
-
0.3
-
%
TJ=125° C, 1000 Hours
-
RMS Output Noise (% of
VOUT)
-
0.003
-
%
TJ=25° C, 10Hz≤f≤10KHz