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LM317L Datasheet(PDF) 1 Page - ON Semiconductor

Part No. LM317L
Description  100 mA Adjustable Output, Positive Voltage Regulator
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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LM317L Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2005
October, 2005 − Rev. 8
1
Publication Order Number:
LM317L/D
LM317L
100 mA Adjustable Output,
Positive Voltage Regulator
The LM317L is an adjustable 3−terminal positive voltage regulator
capable of supplying in excess of 100 mA over an output voltage range
of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use
and requires only two external resistors to set the output voltage.
Further, it employs internal current limiting, thermal shutdown and
safe area compensation, making them essentially blow−out proof.
The LM317L serves a wide variety of applications including local,
on card regulation. This device can also be used to make a
programmable output regulator, or by connecting a fixed resistor
between the adjustment and output, the LM317L can be used as a
precision current regulator.
Features
Pb−Free Packages are Available
Output Current in Excess of 100 mA
Output Adjustable Between 1.2 V and 37 V
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor Safe−Area Compensation
Floating Operation for High Voltage Applications
Standard 3−Lead Transistor Package
Eliminates Stocking Many Fixed Voltages
Simplified Application
* Cin is required if regulator is located an appreciable
** distance from power supply filter.
** CO is not needed for stability, however,
** it does improve transient response.
Since IAdj is controlled to less than 100 mA, the error
associated with this term is negligible in most applications.
LM317L
Vin
Vout
R1
240
R2
Adjust
IAdj
Cin*
0.1
mF
+ C
O**
1.0
mF
Vout + 1.25 V 1 )
R2
R1
) IAdj R2
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
http://onsemi.com
LOW CURRENT
THREE−TERMINAL
ADJUSTABLE POSITIVE
VOLTAGE REGULATOR
TO−92
Z SUFFIX
CASE 29
Pin 1. Adjust
2. Vout
3. Vin
3
1
2
SOIC−8
D SUFFIX
CASE 751
1
8
Pin 1. Vin
2. Vout
3. Vout
4. Adjust
5. N.C.
6. Vout
7. Vout
8. N.C.
http://onsemi.com


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