LM1117-1.8 National Semiconductor Corporation, LM1117-1.8 Datasheet - Page 12

• Manufacturer Part Number: LM1117-1.8
• Description: LM1117 - 800mA Low-dropout Linear Regulator, Package: to 252, Pin Nb=3
• Manufacturer: National Semiconductor Corporation

www.national.com
Application Note
*Tab of device attached to topside copper
Layout
13
14
15
16
(Continued)
0.175
0.284
0.392
0.5
TABLE 1. θ
Copper Area
JA
Different Heatsink Area (Continued)
0.175
0.284
0.392
0.5
12
93
83
75
70
Thermal Resistance
72
61
55
53