LM317SSLASHNOPB datasheet(19/51 Pages) TI

部品番号	LM317S/NOPB

部品情報	LM117, LM317-N Wide Temperature Three-Pin Adjustable Regulator

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メーカー	TI [Texas Instruments]

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267

1.5 k

2 k

0.1 µF

LM329

VIN

15 V

VOUT

10 V

VIN

VOUT

LM117

ADJ

LM317-N

LM117, LM317-N

www.ti.com

SNVS774Q – MAY 2004 – REVISED JUNE 2020

Product Folder Links: LM117 LM317-N

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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

LM317S/NOPB データシート(PDF) 19 Page - Texas Instruments