LM2940SX-8.0/NOPB National Semiconductor, LM2940SX-8.0/NOPB Datasheet - Page 15

• Manufacturer Part Number: LM2940SX-8.0/NOPB
• Description: IC REG 8V 1A LDO TO-263
• Manufacturer: National Semiconductor

Specifications of LM2940SX-8.0/NOPB

• Regulator Topology: Positive Fixed
• Voltage - Output: 8V
• Voltage - Input: 9.4 ~ 26 V
• Voltage - Dropout (typical): 0.5V @ 1A
• Number Of Regulators: 1
• Current - Output: 1A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-3, D²Pak (3 leads + Tab), TO-263AA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Other names: *LM2940SX-8.0; *LM2940SX-8.0/NOPB; LM2940SX-8.0

HEATSINKING LLP PACKAGE PARTS
The value of θ
for the LLP package is specifically dependent
JA
on PCB trace area, trace material, and the number of layers
and thermal vias. It is recommended that a minimum of 6
thermal vias be placed under the center pad to improve ther-
mal performance.
For techniques for improving the thermal resistance and pow-
er dissipation for the LLP package, please refer to Application
Note AN-1187.
882241
FIGURE 6. Maximum Power Dissipation vs. T
for the
A
SOT-223 Package
15
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