LM317ML-TA3-T [UTC]
MEDIUM CURRENT 1.2V TO 37V ADJUSTABLE VOLTAGE REGULATOR; 中等电流1.2V至37V可调稳压
| 型号： | LM317ML-TA3-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | MEDIUM CURRENT 1.2V TO 37V ADJUSTABLE VOLTAGE REGULATOR |
| 文件： | 总5页 (文件大小：250K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LM317M
LINEAR INTEGRATED CIRCUIT
MEDIUM CURRENT 1.2V TO
37V ADJUSTABLE VOLTAGE
REGULATOR
DESCRIPTION
The UTC LM317M is an adjustable 3-terminal positive
voltage regulator, designed to supply 500mA of output current
with voltage adjustable from 1.2V ~ 37V.
FEATURES
*Output Voltage Adjustable From 1.2V ~ 37V
*Output Current In Excess of 500mA
*Internal Thermal Overload Protection
*Internal Short Circuit Current Limiting
*Output Transistor Safe Area Compensation
ORDERING INFORMATION
Ordering Number
Pin Assignment
Packing
Package
SOT-223 ADJ
Lead Free
Halogen Free
1
2
3
I
4
5
-
6
-
7
-
8
-
LM317ML-AA3-R
LM317ML-S08-R
LM317ML-S08-T
LM317ML-TA3-T
LM317ML-TN3-R
LM317ML-TN3-T
LM317MG-AA3-R
LM317MG-S08-R
LM317MG-S08-T
LM317MG-TA3-T
LM317MG-TN3-R
LM317MG-TN3-T
O
O
O
O
O
O
-
Tape Reel
Tape Reel
Tube
SOP-8
SOP-8
I
I
O
O
I
ADJ
x
x
-
O
O
-
O
O
-
x
x
-
ADJ
TO-220 ADJ
TO-252 ADJ
TO-252 ADJ
-
-
-
Tube
I
-
-
-
-
Tape Reel
Tube
I
-
-
-
-
Note: Pin Assignment: I:VIN O:VOUT
x: NC
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Copyright © 2011 Unisonic Technologies Co., Ltd
QW-R101-014,H
LM317M
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
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LM317M
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VIN-VOUT
PD
RATINGS
40
UNIT
V
Input-Output Voltage Differential
Power Dissipation
Internally Limited
+125
W
Junction Temperature
Operating Temperature
Storage Temperature
TJ
℃
TOPR
-40 ~ +85
-40 ~ +150
℃
TSTG
℃
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.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
SOT-223
SOP-8
150
165
70
92
15
20
5
Junction to Ambient
Junction to Case
θJA
℃/W
TO-220
TO-252
SOT-223
SOP-8
θJC
℃/W
TO-220
TO-252
5
ELECTRICAL CHARACTERISTICS
(VIN-VOUT=5V, IOUT=0.1A, TA=25℃, unless otherwise specified.)
PARAMETER
Line Regulation
SYMBOL
TEST CONDITIONS
3V≦VIN-VOUT≦40V
MIN TYP MAX UNIT
0.01 0.04 %/V
ΔVOUT/VOUT
V
OUT≦5V
OUT≧5V
5
25
0.5
100
mV
%
10mA≦IOUT≦0.5A
Load Regulation
ΔVOUT
IADJ
V
0.1
50
Adjustable Pin Current
Adjustable Pin Current Change
μA
3V≦VIN-VOUT≦40V,
ΔIADJ
0.2
5
μA
10mA≦IOUT≦0.5A, PD＜7.5W
3V≦VIN-VOUT≦40V,
10mA≦IOUT≦0.5A, PD＜7.5W
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
0.2
10
IO(MAX) VIN-VOUT=40V, PD≦7.5W
0.1
A
eN
10HZ≦f≦10KHZ
0.003
65
%/VOUT
CADJ=0
Ripple Rejection
RR
VOUT=10V,f=120HZ
dB
CADJ=10μF 66
80
Note: CADJ is connected between Adjust pin and Ground.
UNISONIC TECHNOLOGIES CO., LTD
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LM317M
LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUITS
VIN
VOUT
IOUT
VIN
R2
R1
3
3
2
2
UTC LM317M
UTC LM317M
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
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LM317M
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
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