LM317M-TN3-0-T [UTC]
3-TERMINAL 0.5A POSITIVE ADJUSTABLE REGULATOR; 三端0.5A正，可调式稳压器
| 型号： | LM317M-TN3-0-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | 3-TERMINAL 0.5A POSITIVE ADJUSTABLE REGULATOR |
| 文件： | 总6页 (文件大小：355K) |
| 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
3-TERMINAL 0.5A POSITIVE
ADJUSTABLE REGULATOR
1
2
1
3
ꢀ
DESCRIPTION
TO-252
SOT-223
The UTC LM317M is a 3-terminal adjustable positive voltage
regulator capable of supplying in excess of 500mA over an output
voltage range of 1.2V ~ 37V. This voltage regulator is exceptionally
easy to use and requires only two external resistors to set the output
voltage.
1
2
3
TO-220
ꢀ
FEATURES
*Output Current in Excess of 0.5A
*Output Adjustable Between 1.2V and 37V
*Internal Thermal Overload Protection
*Internal Short Circuit Current Limiting
*Output Transistor Safe Area Compensation
*Floating Operation for High Voltage Applications
*Pb-free plating product number: LM317ML
ꢀ
ORDERING INFORMATION
Order Number
Pin Assignment
Packing
Package
Normal
Lead Free Plating
1
A
A
A
A
2
3
I
LM317M-AA3-0-R
LM317M-TA3-0-T
LM317M-TN3-0-R
LM317M-TN3-0-T
LM317ML-AA3-0-R
LM317ML-TA3-0-T
LM317ML-TN3-0-R
LM317ML-TN3-0-T
SOT-223
TO-220
TO-252
TO-252
O
O
O
O
Tape Reel
Tube
I
I
Tape Reel
Tube
I
Note: Pin assignment: I:VIN O:VOUT A:ADJ
LM317ML-AA3-0-R
(1)Packing Type
(2)Pin Assignment
(3)Package Type
(4)Lead Plating
(1) R: Tape Reel, T: Tube
(2) refer to Pin Assignment
(3) AA3: SOT-223, TA3: TO-220, TN3: TO-252
(4) L: Lead Free Plating, Blank: Pb/Sn
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Copyright © 2005 Unisonic Technologies Co., Ltd
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LM317M
LINEAR INTEGRATED CIRCUIT
ꢀ
BLOCK DIAGRAM
3
Input
+
-
Voltage
Reference
Protection
Circuitry
Rlimit
2
Output
1
Vadj
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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
-20 ~ +85
-40 ~ +150
℃
TSTG
℃
Note 1. 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.
2. The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range
and assured by design from -20℃~+85℃.
ꢀ
ELECTRICAL CHARACTERISTICS
(VIN-VOUT=5V, IOUT=0.1A, 0℃≤TJ≤+125℃, PD(MAX)=7.5W, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
Ta=+25℃, 3V≤VIN-VOUT≤40V
3V≤VIN-VOUT≤40V
MIN
TYP
0.01
0.02
MAX
0.04
0.07
UNIT
%/V
Line Regulation
∆VOUT
Ta=+25°C, 10mA≤VIN-VOUT≤0.5A
V
V
OUT≤5V
OUT≥5V
5
0.1
25
0.5
mV
%/Vo
Load Regulation
∆VOUT
10mA≤IOUT≤0.5A
V
V
OUT≤5V
OUT≥5V
20
0.3
50
70
1.5
100
mV
%/Vo
µA
Adjustment Pin Current
IADJ
Adjustment
Change
Pin
Current
3V≤VIN-VOUT≤40V
10mA≤IOUT≤0.5A, PD<PD(MAX)
3V≤VIN-VOUT≤40V
△IADJ
0.2
5
µA
Reference Voltage
VREF
STT
1.20
1.25
0.7
1.30
V
10mA≤IOUT≤0.5A, PD<PD(MAX)
Temperature Stability
%/Vo
mA
Minimum Load Current to
Maintain Regulation
VIN-VOUT=40V
IL(MIN)
3.5
10
VIN-VOUT≤15V, PD<PD(MAX)
VIN-VOUT=40V
PD<PD(MAX), Ta=+25℃
Ta=+25℃, 10Hz<f<10KHz
VOUT=10V, f=120Hz
Without CADJ
0.5
0.9
Maximum Output Current
RMS Noise, % of VOUT
Ripple Rejection
IO(MAX)
eN
0.15
0.25
0.003
A
%/Vo
RR
66
65
80
V/µs
CADJ=10µF
Long-Term Stability
ST
TJ=+125℃, 1000Hours
0.3
1
%/1000Hrs
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LM317M
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL APPLICATION
D1
1N4002
VoUT
120
Input
UTC LM317M
Output
+
1.0μF
V
ADJ
1k
MIN. VoUT=1.25V
TTL CONTROL
PN2222A
720
Figure 1. 1.5V Electronic Shutdown Regulator
D1 protects the device during an input short circuit
VoUT
Input
UTC LM317M
Output
1N4001
240
50K
V
ADJ
PN2907A
R2
+
1.0μF
Figure 2. Slow Turn-On Regulator
IoUT
VoUT
R1
R2
UTC
LM317M
Input
Output
VADJ
IADJ
V
R1
V
REF
1.25V
R1
1.25V
I
O(MAX)=(
O(MIN)=(
)+IADJ
=
REF
I
)+IADJ
=
R1+R2
R1+R2
5mA<IoUT<500mA
Figure 3. Current Regulator
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LM317M
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS
Minimum Load Current
Peak Output Current vs. Input-Output Differential
Voltage
40
35
30
T
J
=25℃
T
J=25℃
25
20
30
25
20
15
15
10
10
0.5
0.0
0.5
0.0
0
5
30
35
0
5
30
35
10
15
20
25
40
10
15
20
25
40
Input-output Differential Voltage, VIN-VOUT (V)
Input-output Differential Voltage, VIN-VOUT (V)
Ripple Rejection vs. Frequency
Adjustment Pin Current vs.Temperature
55
100
V
IN=19V, VOUT=10V
V
IN-VOUT=5V, IoUT=5mA
VoUT=1.25V
90
80
70
60
50
IOUT=5mA, T =25°C
J
50
45
40
VoUT=36V
40
30
20
10
35
30
-25
0
25
75
10
100
1M
50
100
125
1k
10k
100k
Ambient Temperature, Ta (℃)
Frequency, f (Hz)
Load Regulation vs. Temperature
Line Regulation vs. Temperature
1.0
0.015
3V≤VIN-VOUT≤40, VOUT=1.25V
OUT=100mA, Pulse test
V
IN-VOUT=5V, Vo=1.25V
0.
9
0.014
I
10mA≤IOUT≤500mA, Pulse test
0.8
0.7
0.013
0.012
0.011
0.009
0.008
0.007
0.006
0.6
0.5
0.4
0.3
0.2
0
25
50
75
100
125
0
25
50
75
100
125
-25
-25
Ambient Temperature, Ta (℃)
Ambient Temperature, Ta (℃)
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LM317M
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS(Cont.)
Outputvoltage vs.Temperature
Thermal Shutdown
5.10
1.50
1.25
1.00
0.75
V
OUT=5V, IOUT=5mA
VIN=5V,VOUT=1.25V,IOUT=0mA
5.09
5.08
5.07
V
IN-VOUT=40V
5.06
5.04
5.03
5.02
5.01
5.00
V
IN-VOUT=3V
25
50
75
125
0
20
50
100
150
175
-25
0
100
75
125
Ambient Temperature, Ta (℃)
Ambient Temperature, Ta (℃)
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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