LP38511MR-ADJ NSC [National Semiconductor], LP38511MR-ADJ Datasheet - Page 11

• Manufacturer Part Number: LP38511MR-ADJ
• Description: 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator
• Manufacturer: NSC [National Semiconductor]

Figure 5 shows thermal performance for a two layer board
with the DAP soldered to copper area on the of the PCB only.
Package on 2–Layer PCB with Copper Area on Bottom-
FIGURE 4. θ
JA
vs Thermal Via Count for the PSOP-8
Side
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Increasing the copper area soldered to the DAP to 1 square
inch of 1 ounce copper, using a dog-bone type layout, will
produce a typical θ
FIGURE 5. θ
on 2–Layer PCB with Copper Area on Top-Side
JA
vs Copper Area for the PSOP-8 Package
JA
rating of 98°C/W.
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