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LM317S/NOPB Datasheet(PDF) 18 Page - Texas Instruments

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Part # LM317S/NOPB
Description  Wide Temperature Three-Pin Adjustable Regulator
PDF  48 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM317S/NOPB Datasheet(HTML) 18 Page - Texas Instruments

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R3
267
1%
R2
1.5 k
1%
R1
2 k
5%
C1
0.1 µF
LM329
VIN
15 V
VOUT
10 V
VIN
VOUT
LM117
ADJ
LM317-N
LM117, LM317-N
SNVS774P – MAY 2004 – REVISED OCTOBER 2015
www.ti.com
Typical Applications (continued)
9.2.4 Adjustable Regulator With Improved Ripple Rejection
To improve ripple rejection, a capacitor is used to bypass the ADJ pin to GND (see Figure 22). This is used to
smooth output ripple by cleaning the feedback path and stopping unnecessary noise from being fed back into the
device, propagating the noise.
NOTE: †Solid tantalum
*Discharges C1 if output is shorted to ground
Figure 22. Adjustable Regulator With Improved Ripple Rejection
9.2.5 High Stability 10-V Regulator
Using a high stability shunt voltage reference in the feedback path, such as the LM329, provides damping
necessary for a stable, low noise output (see Figure 23).
Figure 23. High Stability 10-V Regulator
18
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Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: LM117 LM317-N



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