LP38513S-1.8EV National Semiconductor, LP38513S-1.8EV Datasheet - Page 12

• Manufacturer Part Number: LP38513S-1.8EV
• Description: BOARD EVAL LP38513 1.8V
• Manufacturer: National Semiconductor

Specifications of LP38513S-1.8EV

• Channels Per Ic: 1 - Single
• Voltage - Output: 1.8V
• Current - Output: 3A
• Voltage - Input: 2.25 ~ 5.5V
• Regulator Type: Positive Fixed
• Operating Temperature: -40°C ~ 125°C
• Board Type: Fully Populated
• Utilized Ic / Part: LP38513
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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As shown in the figure, increasing the copper area beyond 1
square inch produces very little improvement. The minimum
value for θ
32°C/W.
FIGURE 3. θ
JA
JA
for the TO-263 package mounted to a PCB is
vs Copper (1 Ounce) Area for the TO-263
package
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Figure 4 shows the maximum allowable power dissipation for
TO-263 packages for different ambient temperatures, assum-
ing θ
125°C.
FIGURE 4. Maximum Power Dissipation vs Ambient
JA
is 35°C/W and the maximum junction temperature is
Temperature for the TO-263 Package
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