Data Sheet

NCP1117, NCV1117
http://onsemi.com
8
60
80
100
120
140
160
180
0.4
0.6
0.8
1.0
1.2
1.4
1.6
010203025155.0
L, LENGTH OF COPPER (mm)
P
D(max)
for T
A
= 50°C
40
50
60
70
80
90
100
010203025155.0
L, LENGTH OF COPPER (mm)
0.6
0.8
1.0
1.2
1.4
1.6
Figure 21. SOT−223 Thermal Resistance and Maximum
Power Dissipation vs. P.C.B. Copper Length
R
q
JA
, THERMAL RESISTANCE,
JUNCTION−TO−AIR (°CW)
P
D
, MAXIMUM POWER DISSIPATION (W)
R
q
JA
, THERMAL RESISTANCE,
JUNCTION−TO−AIR (°CW)
0.4
Figure 22. DPAK Thermal Resistance and Maximum
Power Dissipation vs. P.C.B. Copper Length
Minimum
Size Pad
P
D
, MAXIMUM POWER DISSIPATION (W)
L
2.0 oz. Copper
R
q
JA
Minimum
Size Pad
P
D(max)
for T
A
= 50°C
L
R
q
JA
L
L
2.0 oz. Copper