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PDF LM317L Data sheet ( Hoja de datos )
| Número de pieza | LM317L | |
| Descripción | Positive Voltage Regulator | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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LM317L, NCV317L
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
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
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
These are Pb−Free Devices
Simplified Application
Vin
Cin*
0.1mF
LM317L
IAdj
Adjust
Vout
R1
240
+ CO**
1.0mF
R2
http://onsemi.com
LOW CURRENT
THREE−TERMINAL
ADJUSTABLE POSITIVE
VOLTAGE REGULATOR
8
1
SOIC−8
D SUFFIX
CASE 751
Pin 1. Vin
2. Vout
3. Vout
4. Adjust
5. N.C.
6. Vout
7. Vout
8. N.C.
123
STRAIGHT LEAD
BULK PACK
TO−92
Z SUFFIX
CASE 29
12 3
BENT LEAD
TAPE & REEL
AMMO PACK
Pin 1. Adjust
2. Vout
3. Vin
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
* 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.
ǒ ǓVout + 1.25 V
1
)
R2
R1
) IAdj R2
Since IAdj is controlled to less than 100 mA, the error
associated with this term is negligible in most applications.
Semiconductor Components Industries, LLC, 2013
May, 2013 − Rev. 12
1
Publication Order Number:
LM317L/D
1 page  
14.30V
4.30V
f = 120 Hz
Vin
Cin 0.1mF
LM317L, NCV317L
LM317L
Vout
Adjust
R1
240
1%
Vout = 1.25 V
D1 *
1N4002
CO
+
1mF
RL
VO
R2
1.65K
1%
+
** 10mF
* D1 Discharges CAdj if Output is Shorted to Ground.
**CAdj provides an AC ground to the adjust pin.
Figure 5. Ripple Rejection Test Circuit
0.4 Vin = 45 V
0.2
Vout = 5.0 V
IL = 5.0 mA to 40 mA
0
-0.2
-0.4
Vin = 10 V
Vout = 5.0 V
-0.6 IL = 5.0 mA to 100 mA
-0.8
-1.0
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (C)
Figure 6. Load Regulation
0.50
TJ = 25C
0.40
0.30
0.20 TJ = 150C
0.10
0
0 10 20 30 40 50
Vin-Vout, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V)
Figure 8. Current Limit
80
70
IL = 40 mA
f = 120 Hz
60 Vout = 10 V
Vin = 14 V to 24 V
50
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (C)
Figure 7. Ripple Rejection
2.5
2.0
IL = 100 mA
1.5
IL = 5.0 mA
1.0
0.5
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (C)
Figure 9. Dropout Voltage
http://onsemi.com
5
5 Page 
−X−
A
LM317L, NCV317L
PACKAGE DIMENSIONS
SOIC−8 NB
D SUFFIX
CASE 751−07
ISSUE AK
B
−Y−
−Z−
H
85
S 0.25 (0.010) M Y M
1
4
K
G
D
C
SEATING
PLANE
N X 45 _
0.10 (0.004)
M
J
0.25 (0.010) M Z Y S X S
SOLDERING FOOTPRINT*
1.52
0.060
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
6. 751−01 THRU 751−06 ARE OBSOLETE. NEW
STANDARD IS 751−07.
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 4.80 5.00 0.189 0.197
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.053 0.069
D 0.33 0.51 0.013 0.020
G 1.27 BSC
0.050 BSC
H 0.10 0.25 0.004 0.010
J 0.19 0.25 0.007 0.010
K 0.40 1.27 0.016 0.050
M 0_ 8_ 0_ 8_
N 0.25 0.50 0.010 0.020
S 5.80 6.20 0.228 0.244
7.0
0.275
4.0
0.155
0.6
0.024
1.270
0.050
ǒ ǓSCALE 6:1
mm
inches
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks,
copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC
reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any
particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without
limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications
and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC
does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where
personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and
its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly,
any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture
of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
http://onsemi.com
11
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
LM317L/D
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LM317L.PDF ] | |
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