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What is LM317?

This electronic component, produced by the manufacturer "Unisonic Technologies", performs the same function as "ADJUSTABLE VOLTAGE REGULATOR".


LM317 Datasheet PDF - Unisonic Technologies

Part Number LM317
Description ADJUSTABLE VOLTAGE REGULATOR
Manufacturers Unisonic Technologies　
Logo Unisonic Technologies Logo　


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UNISONIC TECHNOLOGIES CO., LTD
LM317
LINEAR INTEGRATED CIRCUIT
HIGH CURRENT 1.3V TO 37V
ADJUSTABLE VOLTAGE
REGULATOR
11
TO-220
TO-220F
DESCRIPTION
The UTC LM317 is an adjustable 3-terminal positive voltage
regulator, designed to supply 1A of output current with voltage
adjustable from 1.3V ~ 37V.
FEATURES
*Output voltage adjustable from 1.3V ~ 37V
*Output current in excess of 1A
*Internal short circuit protection.
*Internal over temperature protection.
*Output transistor safe area compensation
1
TO-263
1
TO-263-3
1
TO-252
1
SOT-223
SOP-8
21
TO-3
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
- LM317G-AA3-R
LM317K-TA3-T
LM317G-TA3-T
LM317K-TF3-T
LM317G-TF3-T
LM317K-TN3-R
LM317G-TN3-R
LM317K-TQ2-R
LM317G-TQ2-R
LM317K-TQ2-T
LM317G-TQ2-T
LM317K-TQ3-R
LM317G-TQ3-R
LM317K-TQ3-T
LM317G-TQ3-T
LM317K-T30-Y
LM317G-T30-Y
LM317K-T30-A-Y
LM317G-T30-A-Y
- LM317G-S08-R
Note: 1. Pin Assignment: I: VIN O: VOUT
2. Pin 3 on TO-3 is case
Package
SOT-223
TO-220
TO-220F
TO-252
TO-263
TO-263
TO-263-3
TO-263-3
TO-3
TO-3
SOP-8
12
ADJ O
ADJ O
ADJ O
ADJ O
ADJ O
ADJ O
ADJ O
ADJ O
I ADJ
ADJ I
IO
Pin Assignment
3456
I---
I---
I---
I---
I---
I---
I---
I---
O- - -
O- - -
O ADJ NC O
78
Packing
- - Tape Reel
--
Tube
--
Tube
- - Tape Reel
- - Tape Reel
--
Tube
- - Tape Reel
--
Tube
--
Tray
--
Tray
O NC Tape Reel
LM317L-T30-Y-R
(1)Packing Type
(2)Pin Assignment
(3)Package Type
(4)Green Package
(1) R: Tape Reel, T: Tube, Y: Tray
(2) refer to Pin Assignment
(3) AA3: SOT-223, TA3: TO-220, TF3: TO-220F,
TN3: TO-252, TQ2: TO-263, TQ3: TO-263-3
T30: TO-3, S08: SOP-8
(4) G: Halogen Free and Lead Free, K: Lead Free
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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LM317 equivalent
LM317
TYPICAL CHARACTERISTICS
Load Regulation vs. temperature
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
VIN=15V
VOUT=10V
25 50
75 100 125
Temperature
LINEAR INTEGRATED CIRCUIT
Adjustment Current vs. Temperature
60
55
50
45
40
35
-50 -25 0 25 50 75 100 125
Temperature
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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