LA317H-XX-BL [TAITRON]
1.0A Adustable Positive Voltage Regulator; 1.0A Adustable正电压稳压器
| 型号： | LA317H-XX-BL |
| 厂家： | 
TAITRON COMPONENTS INCORPORATED |
| 描述： | 1.0A Adustable Positive Voltage Regulator |
| 文件： | 总9页 (文件大小：436K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1.0A Adjustable Positive
Voltage Regulator
LA317
1.0A Adustable Positive Voltage Regulator
General Description
• The LA317 is an adjustable 3-terminal positive voltage
regulator with a very low dropout of 1.2V at 1A output
current. Using 2 external resistors, the LA317 can
provide an adjustable output voltage down to 1.25V.
SOT-223
D-PACK
(TO-252)
• The LA317 is available in standard SOT-223, D-PACK,
TO-220 and D2-PACK packages.
D2-PACK
(TO-263)
TO-220
Features
Applications
• Typical 1% output voltage tolerance
• Typical 0.01%/V line reglation
• Typical 0.2% Load Regulation
• Very low dropout voltage: 1.2V at 1A output current
• Trimmed current limit
• PC Motherboard
• LCD Monitor
• Graphic Card
• DVD Player
• Network Interface Card/Switch
• Telecom Equipment
• On-chip thermal protection
• RoHS Compliance
• Printer and other Peripheral Equipment
Ordering Information
Rev. A/DX 2007-06-04
Page 1 of 9
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel:
(800)-TAITRON (800)-824-8766 (661)-257-6060
(800)-TAITFAX (800)-824-8329 (661)-257-6415
Fax:
1.0A Adjustable Positive Voltage Regulator
LA317
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 9
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1.0A Adjustable Positive Voltage Regulator
LA317
Absolute Maximum Ratings (Ta=25° C, unless otherwise specified)
Symbol
Description
Ratings
Unit
VIN-VOUT
IO
Input - Output Voltage Differential
Max. Output Current
15
1
V
A
TJ
Operating Junction Temperature
Operating Temperature Range
Storage Temperature Range
150
° C
° C
° C
TOPR
TSTG
0 ~ 125
-65 ~ 150
TLEAD
Lead Temperature (Soldering, 10sec.)
ESD, Human Body Model (Max.)
300
° C
V
ESD
4000
Electrical Characteristics
(Typicals and limits apply for TJ=25ºC, P≤ Maximum Power Dissipation unless otherwise specified)(Note)
LA317
Typ.
Symbol
Description
Unit
Conditions
10mA≤IOUT≤1A
Min.
Max.
3V
VREF
Reference Input Voltage
1.20
1.25
1.30
V
≤VIN-VOUT≤10V,
∆VOUT/VOUT Line Regulation
-
-
0.01
0.04 %/V
IOUT≤20mA, 3V≤VIN-VOUT≤10V,
∆VOUT
Load Regulation
Thermal Regulation
Dropout Voltage
0.2
0.04
1.2
0.4
%
VIN-VOUT=2V, 10mA≤IOUT≤1A
20ms Pulse
0.07 %/W
∆V
-
1.3
V
IOUT=1A
ILIMIT
IADJ
Current Limit
1.2
-
1.5
50
1.8
A
VIN-VOUT=2V
-
Adjustable Pin Current
100
µA
1.4V≤VIN-VOUT≤10V,
10mA≤IOUT≤1A
Adjustable Pin Current
Change
∆IADJ
IL(MIN)
PSRR
-
-
0.2
3.5
75
5
10
-
µA
mA
dB
Minimum Load Current
Ripple Rejection
3V≤VIN-VOUT≤15V
f=120Hz, COUT=1µF Tantalum,
VIN-VOUT=3V, IOUT=1A
60
-
-
Temperature Stability
Long Term Stability
-
-
1
-
-
%
%
-
0.3
TJ=125° C, 1000 Hours
RMS Output Noise (% of
VOUT)
-
-
0.003
-
%
TJ=25° C, 10Hz≤f≤10KHz
Rev. A/DX 2007-06-04
Page 3 of 9
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1.0A Adjustable Positive Voltage Regulator
LA317
LA317
Typ.
Symbol
-
Description
Unit
Conditions
Min.
Max.
-
-
15
-
-
SOT-223
TO-252
10
Thermal Resistance Junction
to Case
°
C/W
-
-
-
4.5
4
-
-
-
TO-220
TO-263
-
-
Thermal Shutdown
150
° C
° C
Junction Temperature
Thermal Shutdown
Hysteresis
-
Note: Maximum Power Dissipation is Package Type and Case Temperature dependent. Pls see Fig.8.
Typical Characteristics Curves
Fig.1- Dropout Voltage vs. Output Current
Fig.2- Load Regulation vs. Temperature
Output Current (A)
Fig.3- Reference Voltage vs. Temperature
Fig.4- Output Voltage vs. Temperature
Ambient Temperature (° C)
Ambient Temperature (° C)
Rev. A/DX 2007-06-04
Page 4 of 9
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1.0A Adjustable Positive Voltage Regulator
LA317
Typical Characteristics Curves (Continued)
Fig.6- Adjust Pin Current vs. Temperature
Fig.5- Minimum Load Current vs. Temperature
Ambient Temperature (° C)
Ambient Temperature (° C)
Fig.8- Maximum Power Dissipation
Fig.7- Short-Circuit Current vs. Temperature
Case Temperature (° C)
Junction Temperature (° C)
Rev. A/DX 2007-06-04
Page 5 of 9
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1.0A Adjustable Positive Voltage Regulator
LA317
Typical Characteristics Curves (Continued)
Fig.9- Ripple Rejection vs. Frequency
Fig.10- Line Transient Response
Frequency (Hz)
Time (200μs/Div)
Fig.11- Load Transient Response
Time (200μs/Div)
Rev. A/DX 2007-06-04
Page 6 of 9
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1.0A Adjustable Positive Voltage Regulator
LA317
Typical Application
Dimensions in inches (mm)
SOT-223
Rev. A/DX 2007-06-04
Page 7 of 9
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1.0A Adjustable Positive Voltage Regulator
LA317
Dimensions in inches (mm) (Continued)
D-PACK
(TO-252)
TO-220
Rev. A/DX 2007-06-04
Page 8 of 9
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1.0A Adjustable Positive Voltage Regulator
LA317
D2-PACK
(TO-263)
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 9 of 9
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