SNOS412L – MAY 2004 – REVISED JULY 2012
LM1117I ELECTRICAL CHARACTERISTICS (continued)
Typicals and limits appearing in normal type apply for T
J
= 25°C. Limits appearing in
Boldface
type apply over the entire
junction temperature range for operation,
−40°C
to 125°C.
Symbol
Parameter
Thermal Resistance
Junction-to-Ambient
No air flow)
Conditions
3-Lead SOT-223 (No heat sink)
3-Lead TO-252 (No heat sink)
(6)
8-Lead LLP
(6)
(7)
(7)
Min
(1)
Typ
(2)
136
92
40
Max
(1)
Units
°C/W
°C/W
°C/W
Minimum pad size of 0.038in
2
Thermal Performance for the LLP was obtained using JESD51-7 board with six vias and an ambient temperature of 22°C. For
information about improved thermal performance and power dissipation for the LLP, refer to Application Note AN-1187.
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