Package Outlines
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
Figure 2. 3x3 mm MLP-8 (Top View)
Figure 3. SOIC-8 (Top View)
Thermal Characteristics(2)
(3)
(4)
(5)
(6)
(7)
Package
8-Lead 3x3 mm Molded Leadless Package (MLP)
8-Pin Small Outline Integrated Circuit (SOIC)
Notes:
Unit
°C/W
°C/W
ΘJL
ΘJT
ΘJA
ΨJB
ΨJT
1.6
68
43
3.5
0.8
40
31
89
43
3.0
2. Estimates derived from thermal simulation; actual values depend on the application.
3. Theta_JL (Θ ): Thermal resistance betweenthe semiconductor junction andthe bottom surface of all the leads(including any
JL
thermal pad) that are typically solderedto a PCB.
4. Theta_JT (Θ ): Thermal resistance betweenthe semiconductor junction andthe top surface of the package,assuming it is
JT
held at a uniform temperature by a top-side heatsink.
5. Theta_JA (ΘJA): Thermal resistance betweenjunction andambient,dependenton the PCB design, heat sinking, and airflow.
The value given isfor natural convection with noheatsinkusing a 2S2P board, asspecifiedin JEDEC standardsJESD51-2,
JESD51-5, and JESD51-7, asappropriate.
6. Psi _JB (ΨJB): Thermal characterizationparameter providingcorrelation betweensemiconductor junctiontemperature andan
application circuit board referencepoint for the thermal environment definedin Note 5. For the MLP-8package, the board
reference isdefined asthe PCB copper connectedto the thermal pad andprotrudingfrom either end of the package.For the
SOIC-8 package, the board reference isdefinedasthe PCB copper adjacent to pin 6.
7. Psi _JT (ΨJT): Thermal characterizationparameter providingcorrelation betweenthe semiconductor junction temperature and
the center of the top of the package for the thermal environmentdefined in Note5.
www.onsemi.com
3