TAITRON LA317LS8-XX-TU 100ma adustable positive voltage regulator Datasheet

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
Load regulation: 0.1%
Constant current limit over temperature
Standard 3-lead transistor package
Input ripple rejection: 70dB
RoHS Compliance
•
•
•
•
High Efficiency Linear Regulators
Post Regulation for Switching Supplies
Microprocessor Power Supply
Mother Board I/O Power Supply
Ordering Information
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel:
Fax:
(800)-TAITRON (800)-824-8766
(800)-TAITFAX (800)-824-8329
(661)-257-6060
(661)-257-6415
Rev. A/DX 2007-06-04
Page 1 of 9
100mA Adjustable Positive Voltage Regulator
LA317L
Pin Configuration
Outline: Z
TO-92
Outline: S8
SOP-8
Block Diagram
Rev. A/DX 2007-06-04
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Page 2 of 9
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
TJ
Operating Junction Temperature
150
°C
TOPR
TSTG
Operating Temperature Range
Storage Temperature Range
-20 ~ 85
-65 ~ 150
°C
°C
PD
Power Dissipation
700
mW
TLEAD
Lead Temperature (Soldering, 4sec.)
260
°C
Electrical Characteristics
(VIN-VOUT=5V, IOUT=40mA,PD≤625mW, 0ºC ≤TJ≤125ºC, unless otherwise specified)
Symbol
Description
LA317L
Min.
Typ.
Max.
-
0.01
0.04
Load Regulation
-
0.02
0.07
-
0.1
0.5
%
-
0.3
1.5
%
5mA≤IOUT≤101mA (Note)
0.04
0.2
%/V
Thermal Regulation
IADJ
Conditions
TJ=25°, 3V≤VIN-VOUT≤15V,
IOUT≤20mA (Note)
3V≤VIN-VOUT≤15V, IOUT≤20mA
(Note)
TJ=25°, 5mA≤IOUT≤100mA (Note)
∆VOUT/VOUT Line Regulation
∆VOUT
Unit
%/W TJ=25°, 10ms Pulse
Adjustable Pin Current
-
50
100
µA
∆IADJ
Adjustable Pin Current Change
-
0.2
5
µA
VREF
Reference Input Voltage
1.20
1.25
1.30
V
ILIMIT
Current Limit
100
200
300
mA
3V≤VIN-VOUT≤13V
IL(MIN)
Minimum Load Current for
Regulation
-
3.5
5
mA
3V≤VIN-VOUT≤13V
PSRR
Ripple Rejection
-
62
-
60
70
-
-
0.65
-
-
Temperature Stability
dB
%
3V≤VIN-VOUT≤15V,
5mA≤IOUT≤100mA
3V≤VIN-VOUT≤15V,
5mA≤IOUT≤100mA
VOUT=10V, f=120Hz, CADJ=0µF
VOUT=10V, f=120Hz, CADJ=10µF
0° C ≤TJ≤125° C
Rev. A/DX 2007-06-04
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Page 3 of 9
100mA Adjustable Positive Voltage Regulator
LA317L
Symbol
Description
LA317L
Min.
Typ.
Max.
Unit
Conditions
-
Long Term Stability
-
0.3
-
%
TJ=125° C, 1000 Hours
-
RMS Output Noise (% of VOUT)
-
0.003
-
%
TJ=125° C, 10Hz≤f≤10KHz
-
Thermal Resistance Junction to
Case
-
185
-
-
175
-
TO-92
° C/W
SOP-8
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
Output Voltage (V)
Output Voltage Deviation (V)
Fig.1- Load Regulation vs. Temperature
Input Voltage (V)
Temperature (° C)
Fig.4- Adjust Pin Current vs. Temperature
Reference Voltage (V)
Adjust Pin Current (μA)
Fig.3- Reference Voltage vs. Temperature
Temperature (° C)
Temperature (° C)
Rev. A/DX 2007-06-04
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Page 4 of 9
100mA Adjustable Positive Voltage Regulator
LA317L
Typical Characteristics Curves (Continued)
Fig.6- Minimum Operating Current
Quiescent Current (mA)
Input-Output Differential (V)
Fig.5- Dropout Voltage vs. Temperature
Input-Output Differential (V)
Temperature (° C)
Fig.8- Ripple Rejection vs. Frequency
Ripple Rejection (dB)
Ripple Rejection (dB)
Fig.7- Ripple Rejection vs. Output Voltage
Output Voltage (V)
Frequency (Hz)
Rev. A/DX 2007-06-04
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Page 5 of 9
100mA Adjustable Positive Voltage Regulator
LA317L
Typical Characteristics Curves (Continued)
ΔVOUT (200mV/Div)
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)
ΔVIN (0.5V/Div)
IOUT (50mA/Div)
ΔVOUT (200mV/Div)
Fig.9- Load Transient Response
(Conditions: VIN=10.25V, VOUT=5.25V, CIN=0.1μF,
COUT=1μF, TA=25℃)
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
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Page 6 of 9
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
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Page 7 of 9
100mA Adjustable Positive Voltage Regulator
LA317L
Dimensions in mm (inches) (Continued)
SOP-8
Rev. A/DX 2007-06-04
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Page 8 of 9
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: [email protected]
Http://www.taitroncomponents.com
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42970 MEXICO
Tel: +52-55-5560-1519
Fax: +52-55-5560-2190
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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
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Page 9 of 9
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