LM2940CS-12/NOPB National Semiconductor, LM2940CS-12/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM2940CS-12/NOPB
• Description: IC REGULATOR LDO 1A TO-263
• Manufacturer: National Semiconductor
• Type: Voltage Regulatorr

Specifications of LM2940CS-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: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-3, D²Pak (3 leads + Tab), TO-263AA
• Current, Output: 1 A
• Current, Supply: 30 mA
• Package Type: TO-263
• Regulation, Line: 20 mV
• Regulation, Load: 55 mV
• Regulator Type: Low Dropout
• Resistance, Thermal, Junction To Case: 4 °C/W
• Temperature, Operating, Range: 0 to +125 °C
• Voltage, Dropout: 0.5 V
• Voltage, Input: 26 V
• Voltage, Noise: 360 μV
• Voltage, Output: 12 V
• Primary Input Voltage: 17V
• Output Voltage Fixed: 12V
• Dropout Voltage Vdo: 500mV
• No. Of Pins: 3
• Output Current: 1A
• Operating Temperature Range: 0°C To +125°C
• Msl: MSL 3 - 168 Hours
• Current Rating: 1A
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device
• Other names: *LM2940CS-12; *LM2940CS-12/NOPB; LM2940CS-12

www.national.com
The physical size of the SOT-223 is too small to contain the full device part number. The package markings indicated are what will appear on the actual device.
For information on military temperature range products, please go to the Mil/Aero Web Site at http://www.national.com/appinfo/milaero/index.html.
Connection Diagrams
Marking
Range
≤
−40°C
Temp
85°C
Temperature
T
A
≤
Range
≤
−55°C
125°C
T
LM2940IMP-5.0 LM2940IMP-8.0 LM2940IMP-9.0 LM2940IMP-10 LM2940IMP-12 LM2940IMP-15 SOT-223
J
16-Lead Dual-in-Line Package (J)
LM2940IMPX
TO-263 (S) Surface-Mount Package
≤
See NS Package Number J16A
See NS Package Number TO3B
See NS Package Number TS3B
L53B
TO-220 (T) Plastic Package
-5.0
5.0
Top View
LM2940WG5.0/883
LM2940J-5.0/883
5962-8958701EA
5962-8958701XA
Front View
Side View
Top View
LM2940IMPX
5.0
L54B
-8.0
8.0
882212
882243
882211
882202
Mil-Aero Ordering Information
LM2940IMPX
L0EB
-9.0
9.0
Output Voltage
8.0
–
–
Output Voltage
2
Pin 2 and pin 7 are fused to center DAP
Pin 5 and 6 need to be tied together on PCB board
LM2940IMPX
L55B
-10
LM2940WG5-12/883 LM2940WG5-15/883
10
5962-9088401QEA
16-Lead Ceramic Surface-Mount Package (WG)
LM2940J-12/883
See NS Package Number LDC08A
See NS Package Number MP04A
12
See NS Package Number WG16A
LM2940IMPX
SOT-223 (MP) 3-Lead
L56B
LLP (LD) 8-Lead
-12
12
Front View
Top View
Top View
5962-9088501QEA
LM2940J-15/883
LM2940IMPX
15
L70B
-15
15
882244
882242
882246
Package
SOT-223
and Reel
in Tape
Package
WG16A
J16A