LM317MC-XX-TR70 [TAITRON]
Adustable Positive Voltage Regulator; Adustable正电压稳压器
| 型号： | LM317MC-XX-TR70 |
| 厂家： | 
TAITRON COMPONENTS INCORPORATED |
| 描述： | Adustable Positive Voltage Regulator |
| 文件： | 总8页 (文件大小：375K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Adjustable Positive
Voltage Regulator
LM317
Adustable Positive Voltage Regulator
General Description
• The LM317 is an adjustable 3-terminal positive voltage
regulator, designed to supply 1A of output current with
. voltage adjustable from 1.3V ~ 37V.
SOT-223
D-PACK
(TO-252)
• The LM317 is available in SOT-223, D-PACK, TO-220
and D2-PACK packages.
D2-PACK
(TO-263)
TO-220
Features
Applications
• Output Voltage adjustable from 1.3V ~ 37V
• Output current in excess of 1A
• Internal short circuit protection
• Internal over temperature protection
• Output transistors safe area compensation
• RoHS Compliance
• PC Motherboard
• LCD Monitor
• Graphic Card
• DVD Player
• Network Interface Card/Switch
• Telecom Equipment
• Printer and other Peripheral Equipment
Ordering Information
Rev. A/DX 2007-06-04
Page 1 of 8
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel:
(800)-TAITRON (800)-824-8766 (661)-257-6060
(800)-TAITFAX (800)-824-8329 (661)-257-6415
Fax:
Adjustable Positive Voltage Regulator
LM317
Pin Configuration
Outline: H
SOT-223
Outline: D
D-PACK (TO-252)
Outline: T
TO-220
Outline: MC
D2-PACK (TO-263)
Block Diagram
Rev. A/DX 2007-06-04
Page 2 of 8
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Adjustable Positive Voltage Regulator
LM317
Absolute Maximum Ratings (Ta=25° C, unless otherwise specified)
Symbol
Description
Ratings
Unit
VIN-VOUT
IO
Input - Output Voltage Differential
Max. Output Current
40
1.0
V
A
TJ
Operating Junction Temperature
Operating Temperature Range
Storage Temperature Range
125
° C
° C
° C
TOPR
TSTG
-40 ~ 85
-40 ~ 150
PD
Power Dissipation
Internal limited
mW
T: TO-220
5
5
MC: D2-PACK (TO-263)
D: D-PACK (TO-252)
H: SOT-223
Thermal Resistance
Junction-Case
RthJC
° C/W
12
23
54
64
112
165
T: TO-220
MC: D2-PACK (TO-263)
D: D-PACK (TO-252)
H: SOT-223
Thermal Resistance
Junction-Ambient
RthJA
° C/W
Note: Absolute maximum ratings are stress ratings only and functional device operation is not
implied. The device could be damaged beyond Absolute maximum ratings.
Electrical Characteristics
(VIN-VOUT=5V, IOUT=10mA, TA=25ºC, unless otherwise specified)
LM317
Typ.
Symbol
Description
Unit
Conditions
Min.
Max.
∆VOUT/VOUT Line Regulation
-
0.01
0.04
%/V
3V≤VIN-VOUT≤40V
-
-
5
25
mV
mV
10mA≤IOUT≤1A, VOUT≤5V
∆VOUT
Load Regulation
0.1
0.5
10mA≤IOUT≤1A, VOUT≥5V
IADJ
Adjustable Pin Current
-
-
50
100
5
µA
µA
-
3V≤VIN-VOUT≤40V,
10mA≤IOUT≤1A, PD≤20W
∆IADJ
Adjustable Pin Current Change
0.2
3V≤VIN-VOUT≤40V,
10mA≤IOUT≤1A, PD≤20W
VREF
Reference Input Voltage
Temperature Stability
1.20
-
1.25
0.7
1.30
-
V
-
%/VOUT
TMIN≤TJ≤TMAX
Rev. A/DX 2007-06-04
Page 3 of 8
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Adjustable Positive Voltage Regulator
LM317
LM317
Typ.
Symbol
Description
Unit
Conditions
Min.
Max.
Minimum Load Current for
Regulation
IL(MIN)
IO(MAX)
eN
-
3.5
10
mA
A
VIN-VOUT=40V
Maximum Output Current
0.3
-
0.4
-
-
VIN-VOUT=40V, PD≤20W
10Hz≤f≤10KHz
RMS Noise vs. %of VOUT
0.003
%/VOUT
CADJ=0
-
65
80
-
-
Ripple
Rejection
RR
dB
VOUT=10V, f=120Hz
CADJ=10µF
66
Note: CADJ is connected between Adjust pin and Ground.
Typical Characteristics Curves
Fig.2- Adjustment Current vs. Temperature
Fig.1- Load Regulation vs. Temperature
Temperature (° C)
Temperature (° C)
Fig.4- Minimum Operating Current
Fig.3- Current Limit
VIN-VOUT (V)
VIN-VOUT (V)
Rev. A/DX 2007-06-04
Page 4 of 8
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Adjustable Positive Voltage Regulator
LM317
Typical Application
Fig.5-Programmable Voltage Regulator
Fig.6- Regulator with On-off Control
Fig.7- Soft Start Application
Fig.8- Constant Current Application
Rev. A/DX 2007-06-04
Page 5 of 8
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Adjustable Positive Voltage Regulator
LM317
Dimensions in inches (mm)
SOT-223
D-PACK
(TO-252)
Rev. A/DX 2007-06-04
Page 6 of 8
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Adjustable Positive Voltage Regulator
LM317
TO-220
D2-PACK
(TO-263)
Rev. A/DX 2007-06-04
Page 7 of 8
www.taitroncomponents.com
Adjustable Positive Voltage Regulator
LM317
How to contact us:
US HEADQUARTERS
28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162
Tel: (800) TAITRON (800) 824-8766 (661) 257-6060
Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415
Email: taitron@taitroncomponents.com
Http://www.taitroncomponents.com
TAITRON COMPONENTS MEXICO, S.A .DE C.V.
BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P.
42970 MEXICO
Tel: +52-55-5560-1519
Fax: +52-55-5560-2190
TAITRON COMPONETS INCORPORATED E REPRESENTAÇÕES DO BRASIL LTDA
RUA DOMINGOS DE MORAIS, 2777, 2.ANDAR, SALA 24 SAÚDE - SÃO PAULO-SP 04035-001 BRAZIL
Tel: +55-11-5574-7949
Fax: +55-11-5572-0052
TAITRON COMPONETS INCORPORATED, SHANGHAI REPRESENTATIVE OFFICE
CROSS REGION PLAZA, 899 LINGLING ROAD, SUITE 18C, SHANGHAI, 200030, CHINA
Tel: +86-21-5424-9942
Fax: +86-21-5424-9931
Rev. A/DX 2007-06-04
Page 8 of 8
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