LM2940SX-12/NOPB National Semiconductor, LM2940SX-12/NOPB Datasheet - Page 15
![IC REG 12V 1A LDO TO-263](/photos/12/65/126593/ts3b_sml.jpg)
LM2940SX-12/NOPB
Manufacturer Part Number
LM2940SX-12/NOPB
Description
IC REG 12V 1A LDO TO-263
Manufacturer
National Semiconductor
Datasheet
1.LM2940IMP-5.0NOPB.pdf
(20 pages)
Specifications of LM2940SX-12/NOPB
Regulator Topology
Positive Fixed
Voltage - Output
12V
Voltage - Input
13.6 ~ 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-12
*LM2940SX-12/NOPB
LM2940SX-12
*LM2940SX-12/NOPB
LM2940SX-12
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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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