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LM317LK-S08-T [UTC]

LOW CURRENT 1.25V TO 37V ADJUSTABLE VOLTAGE REGULATOR; 低电流1.25V至37V可调稳压
LM317LK-S08-T
型号： LM317LK-S08-T
厂家： Unisonic Technologies    Unisonic Technologies
描述：

LOW CURRENT 1.25V TO 37V ADJUSTABLE VOLTAGE REGULATOR
低电流1.25V至37V可调稳压

线性稳压器IC 调节器 电源电路 光电二极管 输出元件
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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:  
Halogen-free: LM317LG  
LM317LK  
„
ORDERING INFORMATION  
Ordering Number  
Pin Assignment  
Package  
Packing  
Normal  
Lead Free  
Halogen Free  
LM317LG-T92-B  
LM317LG-T92-K  
LM317LG-S08-R  
LM317LG-S08-T  
1
2
3
I
4
-
5
-
6
-
7
-
8
-
LM317L-T92-B  
LM317L-T92-K  
LM317L-S08-R  
LM317L-S08-T  
LM317LK-T92-B  
LM317LK-T92-K  
LM317LK-S08-R  
LM317LK-S08-T  
TO-92  
TO-92  
SOP-8  
SOP-8  
A O  
A O  
Tape Box  
Bulk  
I
-
-
-
-
-
I
I
O O A N O O N Tape Reel  
O O A N O O N Tube  
Note: Pin Assignment: A:ADJ I:VIN O:VOUT N: No Connection  
www.unisonic.com.tw  
Copyright © 2008 Unisonic Technologies Co., Ltd  
1 of 5  
QW-R101-008.D  
LM317L  
LINEAR INTEGRATED CIRCUIT  
„
BLOCK DIAGRAM  
INPUT  
PROTECTION  
CIRCUIT  
VREF  
OUTPUT  
VADJ  
UNISONIC TECHNOLOGIES CO., LTD  
ww.unisonic.com.tw  
2 of 5  
QW-R101-008.D  
LM317L  
LINEAR INTEGRATED CIRCUIT  
„
ABSOLUTE MAXIMUM RATINGS  
PARAMETER  
SYMBOL  
VIN-VOUT  
PD  
RATING  
40  
UNIT  
V
Input-Output Differential Voltage  
Power Dissipation  
Internally Limited  
+125  
Junction Temperature  
TJ  
°C  
°C  
°C  
Operating Junction Temperature  
Storage Temperature Range  
TOPR  
-40 ~ +85  
-40 ~ +150  
TSTR  
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  
MIN TYP MAX UNIT  
0.01 0.04 %/V  
V
OUT≦5V  
5
25  
0.5  
100  
mV  
%
Load Regulation  
ΔVOUT 5mA≦IOUT≦100mA  
VOUT≧5V  
0.1  
50  
Adjustable Pin Current  
Adjustable Pin Current Change  
IADJ  
μA  
3V≦VIN-VOUT≦40V,  
ΔIADJ  
0.2  
5
μA  
5mA≦IOUT≦100mA, PD＜625mW  
3V≦VIN-VOUT≦40V,  
5mA≦IOUT≦100mA, PD＜625mW  
Reference Voltage  
VREF  
1.20 1.25 1.30  
0.7  
V
T
MIN≦TJ≦TMAX  
Temperature Stability  
%/VOUT  
mA  
Minimum Load Current for Regulation  
Maximum Output Current  
RMS Noise vs. %of VOUT  
IL(MIN)  
VIN-VOUT=40V  
3.5  
50  
10  
IO(MAX) VIN-VOUT=40V, PD≦625mW  
mA  
eN  
10HZ≦f≦10KHZ  
0.003 0.01 %/VOUT  
CADJ=0  
ADJ =10μF 66  
65  
80  
dB  
dB  
Ripple Rejection  
RR  
VOUT=10V,f=120HZ,  
C
Note: CADJ is connected between Adjust pin and Ground.  
UNISONIC TECHNOLOGIES CO., LTD  
ww.unisonic.com.tw  
3 of 5  
QW-R101-008.D  
LM317L  
LINEAR INTEGRATED CIRCUIT  
„
APPLICATION CIRCUITS  
VIN  
VOUT  
IOUT  
VIN  
R2  
R1  
3
3
2
2
UTC LM317L  
UTC LM317L  
VoUT  
D1  
1
1
1N4001  
240  
VADJ  
IADJ  
50k  
R2  
V
1.25V  
R1  
REF )+IADJ  
R1  
=
IO(MAX)=(  
10  
F
VREF  
R1+R2  
1.25V  
R1+R2  
IO(MIN)=(  
)+IADJ  
=
5mA<IOUT<100mA  
Fig.3 Soft Start Application  
Fig.4 Constant Current Application  
UNISONIC TECHNOLOGIES CO., LTD  
ww.unisonic.com.tw  
4 of 5  
QW-R101-008.D  
LM317L  
LINEAR INTEGRATED CIRCUIT  
„
TYPICAL CHARACTERISTICS  
Load Regulation vs. temperature  
Adjustment Current vs. Temperature  
0.2  
60  
55  
0.0  
-0.2  
50  
45  
-0.4  
-0.6  
-0.8  
-1.0  
40  
35  
VIN=15V  
VOUT=10V  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
75  
100  
125  
Temperature  
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.  
UNISONIC TECHNOLOGIES CO., LTD  
ww.unisonic.com.tw  
5 of 5  
QW-R101-008.D  

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