LM117, LM317-N
SNVS774L –MAY 2004–REVISED FEBRUARY 2011
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Typical Applications
Figure 1. 1.2V–25V Adjustable Regulator
LM117/LM317A/LM317-N Package Options
Output
Current
Part Number
Suffix
Package
LM117, LM317-N
LM317A, LM317-N
LM317-N
NDS
NDE
KTT
DCY
NDT
NAJ
NDP
TO-3
TO-220
TO-263
SOT-223
TO
1.5A
1.5A
1.5A
1.0A
0.5A
0.5A
0.5A
LM317A, LM317-N
LM117, LM317A, LM317-N
LM117
LCCC
PFM
LM317A, LM317-N
Full output current not available at high
input-output voltages
SOT-223 vs. PFM Packages
*Needed if device is more than 6 inches
from filter capacitors.
†Optional—improves transient response.
Output capacitors in the range of 1μF to
1000μF of aluminum or tantalum
electrolytic are commonly used to provide
improved output impedance and rejection
of transients.
Figure 2. Scale 1:1
Connection Diagrams
TO-3 (NDS)
Metal Can Package
Figure 5. TO-263 (KTT)
Surface-Mount Package
Figure 6. Top View
CASE IS OUTPUT
Figure 3. Bottom View
Bottom View
Package Number NDS or K
TO-263 (KTT)
Surface-Mount Package
TO (NDT)
Metal Can Package
Figure 7. Side View
Package Number KTT
CASE IS OUTPUT
Figure 4. Bottom View
Package Number NDT
2
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