UTC LM317LG-S08-T Low current 1.25v to 37v adjustable voltage regulator Datasheet

UNISONIC TECHNOLOGIES CO., LTD
LM317L
LINEAR INTEGRATED CIRCUIT
LOW CURRENT 1.25V TO
37V ADJUSTABLE VOLTAGE
REGULATOR
„
SOP-8
DESCRIPTION
The UTC LM317L is a monolithic integrated circuit,
designed to supply 100mA of output current with voltage
adjustable from 1.25V ~ 37V.
1
„
FEATURES
TO-92
*Output voltage adjustable from 1.25V ~ 37V.
*Output current in excess of 100mA
*Internal thermal overload protection
*Internal short circuit current limiting
*Output transistor safe area compensation
„
Lead-free:
LM317LK
Halogen-free: LM317LG
ORDERING INFORMATION
Normal
LM317L-T92-B
LM317L-T92-K
LM317L-S08-R
LM317L-S08-T
Ordering Number
Lead Free
LM317LK-T92-B
LM317LK-T92-K
LM317LK-S08-R
LM317LK-S08-T
Note: Pin Assignment: A:ADJ
I:VIN O:VOUT
Halogen Free
LM317LG-T92-B
LM317LG-T92-K
LM317LG-S08-R
LM317LG-S08-T
Package
TO-92
TO-92
SOP-8
SOP-8
1
A
A
I
I
Pin Assignment
2 3 4 5 6 7
O I - - - O I - - - O O A N O O
O O A N O O
Packing
8
- Tape Box
Bulk
N Tape Reel
N
Tube
N: No Connection
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Copyright © 2008 Unisonic Technologies Co., Ltd
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LM317L
„
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
INPUT
VREF
PROTECTION
CIRCUIT
OUTPUT
VADJ
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LM317L
„
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
Input-Output Differential Voltage
VIN-VOUT
40
V
Power Dissipation
PD
Internally Limited
Junction Temperature
TJ
+125
°C
Operating Junction Temperature
TOPR
-40 ~ +85
°C
Storage Temperature Range
TSTR
-40 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„
ELECTRICAL CHARACTERISTICS
(VIN-VOUT=5V, IOUT=40mA, Ta=25°C, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
Line Regulation
ΔVOUT/VOUT 3V≦VIN-VOUT≦40V, ILOAD<20mA
VOUT≦5V
Load Regulation
ΔVOUT 5mA≦IOUT≦100mA
VOUT≧5V
Adjustable Pin Current
IADJ
Adjustable Pin Current Change
ΔIADJ
Reference Voltage
VREF
Temperature Stability
Minimum Load Current for Regulation
Maximum Output Current
RMS Noise vs. %of VOUT
3V≦VIN-VOUT≦40V,
5mA≦IOUT≦100mA, PD<625mW
3V≦VIN-VOUT≦40V,
5mA≦IOUT≦100mA, PD<625mW
TMIN≦TJ≦TMAX
VIN-VOUT=40V
VIN-VOUT=40V, PD≦625mW
10HZ≦f≦10KHZ
CADJ=0
Ripple Rejection
RR
VOUT=10V,f=120HZ,
CADJ =10μF
Note: CADJ is connected between Adjust pin and Ground.
TYP MAX UNIT
0.01 0.04 %/V
5
25
mV
0.1
0.5
%
50
100
μA
0.2
5
1.20 1.25 1.30
IL(MIN)
IO(MAX)
eN
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
66
μA
V
0.7
%/VOUT
3.5
10
mA
50
mA
0.003 0.01 %/VOUT
65
dB
80
dB
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LM317L
„
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUITS
VIN
VOUT
3
UTC LM317L 2
D1
1N4001
1
VADJ
VIN
3
R1
UTC LM317L 2
R2
IOUT
VoUT
1
240
IADJ
50k
R2
10 F
IO(MAX)=(
IO(MIN)=(
1.25V
VREF
)+IADJ=
R1
R1
VREF
1.25V
)+IADJ=
R1+R2
R1+R2
5mA<IOUT<100mA
Fig.3 Soft Start Application
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Fig.4 Constant Current Application
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LM317L
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
„
Load Regulation vs. temperature
Adjustment Current vs. Temperature
60
0.0
Adjustment Current, IADJ (μA)
Output Voltage Deviation, ∆VOUT (%)
0.2
-0.2
-0.4
-0.6
-0.8
VIN=15V
VOUT=10V
-1.0
0
25
50
75
100
125
Temperature
55
50
45
40
35
-50
-25
0
25
50
75
100
125
Temperature
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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www.unisonic.com.tw
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QW-R101-008.D
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