LM2940IMP-12/NOPB National Semiconductor, LM2940IMP-12/NOPB Datasheet - Page 15

• Manufacturer Part Number: LM2940IMP-12/NOPB
• Description: IC REGULATOR LDO 1A SOT-223
• Manufacturer: National Semiconductor

Specifications of LM2940IMP-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 ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-223 (3 leads + Tab), SC-73, TO-261
• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Fixed
• Polarity Type: Positive
• Number Of Outputs: Single
• Input Voltage (min): 13.6V
• Input Voltage (max): 26V
• Output Voltage: 12V
• Package Type: SOT-223
• Output Current: 1(Typ)A
• Load Regulation: 120mV
• Line Regulation: 120mV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Dropout Voltage@current (typ): 0.5@1A/0.11@100mA
• Pin Count: 3 +Tab
• Mounting: Surface Mount
• Quiescent Current (max): 15mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Compliant
• Other names: LM2940IMP-12; LM2940IMP-12TR

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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