l4995r STMicroelectronics, l4995r Datasheet - Page 20

• Manufacturer Part Number: l4995r
• Description: 5v, 500ma Low Drop Voltage Regulator
• Manufacturer: STMicroelectronics

Package and PCB thermal data
20/33
Figure 32. PowerSSO-12™ thermal impedance junction ambient single pulse
Equation 1: pulse calculation formula
Z
where δ = t
Figure 33. Thermal fitting model of Vreg in PowerSSO-12™
THδ
100
ZTH (°C/W)
0,1
10
1
0,0001
=
R
TH
P
/T
⋅
0,001
δ Z
+
THtp
0,01
(
1 δ
–
)
0,1
Time (s)
1
10
100
1000
L4995
Footprint
2 cm
8 cm
2
2