LA317L [TAITRON]
100mA Adustable Positive Voltage Regulator; 百毫安Adustable正电压稳压器
| 型号： | LA317L |
| 厂家： | 
TAITRON COMPONENTS INCORPORATED |
| 描述： | 100mA Adustable Positive Voltage Regulator |
| 文件： | 总9页 (文件大小：343K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
100mA Adjustable Positive
Voltage Regulator
LA317L
100mA Adustable Positive Voltage Regulator
General Description
• The LA317L is an adjustable 3-terminal positive voltage
regulator capable of supplying 100mA over a 1.2V to 12V
output range. This voltage regulator is exceptionally easy
to use and requires only tow external resistors to set the
output voltage.
TO-92
SOP-8
• The LA317L is available in standard TO-92 and SOP-8 packages.
Features
Applications
• Adjustable output down to 1.2V
• Guaranteed 100mA output current
• Output short circuit protected
• Line regulation: 0.01%/V
• High Efficiency Linear Regulators
• Post Regulation for Switching Supplies
• Microprocessor Power Supply
• Mother Board I/O Power Supply
• Load regulation: 0.1%
• Constant current limit over temperature
• Standard 3-lead transistor package
• Input ripple rejection: 70dB
• RoHS Compliance
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:
100mA Adjustable Positive Voltage Regulator
LA317L
Pin Configuration
Outline: Z
TO-92
Outline: S8
SOP-8
Block Diagram
Rev. A/DX 2007-06-04
Page 2 of 9
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100mA Adjustable Positive Voltage Regulator
LA317L
Absolute Maximum Ratings (Ta=25° C, unless otherwise specified)
Symbol
Description
Ratings
Unit
VIN-VOUT
IO
Input - Output Voltage Differential
Max. Output Current
40
100
V
mA
° C
° C
° C
TJ
Operating Junction Temperature
Operating Temperature Range
Storage Temperature Range
150
TOPR
TSTG
-20 ~ 85
-65 ~ 150
PD
Power Dissipation
700
260
mW
° C
TLEAD
Lead Temperature (Soldering, 4sec.)
Electrical Characteristics
(VIN-VOUT=5V, IOUT=40mA,PD≤625mW, 0ºC ≤TJ≤125ºC, unless otherwise specified)
LA317L
Symbol
Description
Unit
Conditions
Min.
Typ.
Max.
TJ=25°, 3V≤VIN-VOUT≤15V,
IOUT≤20mA (Note)
-
0.01
0.04
∆VOUT/VOUT Line Regulation
%/V
3V≤VIN-VOUT≤15V, IOUT≤20mA
(Note)
-
0.02
0.07
-
-
0.1
0.3
0.5
1.5
%
%
TJ=25°, 5mA≤IOUT≤100mA (Note)
5mA≤IOUT≤101mA (Note)
∆VOUT
Load Regulation
Thermal Regulation
0.04
50
0.2
%/W TJ=25°, 10ms Pulse
IADJ
Adjustable Pin Current
-
-
100
µA
-
3V≤VIN-VOUT≤15V,
5mA≤IOUT≤100mA
∆IADJ
Adjustable Pin Current Change
0.2
5
µA
3V≤VIN-VOUT≤15V,
5mA≤IOUT≤100mA
VREF
Reference Input Voltage
Current Limit
1.20
1.25
1.30
V
ILIMIT
100
-
200
3.5
300
5
mA
mA
3V≤VIN-VOUT≤13V
3V≤VIN-VOUT≤13V
Minimum Load Current for
Regulation
IL(MIN)
-
62
70
-
-
VOUT=10V, f=120Hz, CADJ=0µF
VOUT=10V, f=120Hz, CADJ=10µF
PSRR
-
Ripple Rejection
dB
%
60
Temperature Stability
-
0.65
-
0° C ≤TJ≤125° C
Rev. A/DX 2007-06-04
Page 3 of 9
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100mA Adjustable Positive Voltage Regulator
LA317L
LA317L
Symbol
Description
Long Term Stability
Unit
Conditions
Min.
Typ.
Max.
-
-
-
-
0.3
-
-
%
%
TJ=125° C, 1000 Hours
RMS Output Noise (% of VOUT)
0.003
TJ=125° C, 10Hz≤f≤10KHz
-
-
185
175
-
-
TO-92
SOP-8
Thermal Resistance Junction to
Case
° C/W
-
Note: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle.
Changes in output voltage due to heating effects are covered under the specification of thermal regulation.
Typical Characteristics Curves
Fig.2- Output Voltage vs. Input Voltage
Fig.1- Load Regulation vs. Temperature
Input Voltage (V)
Fig.4- Adjust Pin Current vs. Temperature
Fig.3- Reference Voltage vs. Temperature
Temperature (° C)
Temperature (° C)
Rev. A/DX 2007-06-04
Page 4 of 9
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100mA Adjustable Positive Voltage Regulator
LA317L
Typical Characteristics Curves (Continued)
Fig.6- Minimum Operating Current
Fig.5- Dropout Voltage vs. Temperature
Input-Output Differential (V)
Temperature (° C)
Fig.8- Ripple Rejection vs. Frequency
Fig.7- Ripple Rejection vs. Output Voltage
Frequency (Hz)
Output Voltage (V)
Rev. A/DX 2007-06-04
Page 5 of 9
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100mA Adjustable Positive Voltage Regulator
LA317L
Typical Characteristics Curves (Continued)
Fig.9- Load Transient Response
(Conditions: VIN=10.25V, VOUT=5.25V, CIN=0.1μF,
COUT=1μF, TA=25℃)
Fig.10- Line Transient Response
(Conditions: VIN=10.25 to 11.25V, IOUT=40mA,
VOUT=5.25V, CIN=0.1μF, COUT=1μF, TA=25℃)
Time (200μs/Div)
Time (200μs/Div)
Typical Application
Fig.11- 5V Logic Regulator with Electronic
Shutdown (Minimum output=1.2V)
Fig.12- Adjustable Regulator with Improved
Ripple Rejection
Note: Discharge C1 if output is shorted to ground
Rev. A/DX 2007-06-04
Page 6 of 9
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100mA Adjustable Positive Voltage Regulator
LA317L
Typical Application (Continued)
Fig.13- Slow Turn-on 15V Regulator
Dimensions in mm (inches)
TO-92
Rev. A/DX 2007-06-04
Page 7 of 9
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100mA Adjustable Positive Voltage Regulator
LA317L
Dimensions in mm (inches) (Continued)
SOP-8
Rev. A/DX 2007-06-04
Page 8 of 9
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100mA Adjustable Positive Voltage Regulator
LA317L
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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