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LM317S/NOPB Fiches technique(PDF) 22 Page - Texas Instruments

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No de pièce LM317S/NOPB
Description  Wide Temperature Three-Pin Adjustable Regulator
PDF  48 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM317S/NOPB Fiches technique(HTML) 22 Page - Texas Instruments

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LM317-N
LM117, LM317-N
SNVS774P – MAY 2004 – REVISED OCTOBER 2015
www.ti.com
Typical Applications (continued)
9.2.10 Low-Cost 3-A Switching Regulator
The LM317-N can be used in a switching buck regulator application in cost sensitive applications that require
high efficiency. The switch node above D1 oscillates between ground and VIN, as the voltage across sense
resistor R1 drives the power transistor on and off. Figure 28 exhibits self-oscillating behavior by negative
feedback through R6 and C3 to the ADJ pin of the LM317-N.
NOTE: †Solid tantalum
*Core—Arnold A-254168-2 60 turns
Figure 28. Low-Cost 3-A Switching Regulator
22
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Product Folder Links: LM117 LM317-N



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