LM2940CT-12/NOPB National Semiconductor, LM2940CT-12/NOPB Datasheet
![no-image](/images/manufacturer_photos/0/4/469/national_semiconductor_sml.jpg)
LM2940CT-12/NOPB
Specifications of LM2940CT-12/NOPB
*LM2940CT-12/NOPB
LM2940CT-12
Available stocks
Related parts for LM2940CT-12/NOPB
LM2940CT-12/NOPB Summary of contents
Page 1
... LM2940LD-9.0 LM2940LD-10 LM2940LDX LM2940LDX -9.0 -10 LM2940T-9.0 LM2940T-10 LM2940S-9.0 LM2940S-10 LM2940SX-10 8822 January 2007 = 1A O 882203 Package 12 15 LM2940CT-12 LM2940CT-15 LM2940CS-12 LM2940CS-15 LM2940CSX LM2940CSX -12 -15 1k Units LM2940LD-12 LM2940LD-15 Tape and LM2940LDX LM2940LDX -12 -15 Tape and – LM2940T-12 – LM2940S-12 – LM2940SX-12 www ...
Page 2
Temp Range 5.0 LM2940IMP-5.0 LM2940IMP-8.0 LM2940IMP-9.0 LM2940IMP-10 LM2940IMP-12 LM2940IMP-15 SOT-223 −40°C ≤ ≤ T LM2940IMPX LM2940IMPX A 85°C -5.0 Marking L53B L54B The physical size of the SOT-223 is too small to contain the full device part number. The package ...
Page 3
... I = 100 mA O SOT-223 (MP) (Note 1) LLP-8 (LD) ESD Susceptibility (Note 4) Operating Conditions 60V Input Voltage Temperature Range 45V LM2940T, LM2940S Internally Limited LM2940CT, LM2940CS 150°C LM2940IMP ≤ ≤ −65°C T +150°C LM2940J, LM2940WG J LM2940LD 260°C, 10s 235°C, 30s = T = 25°C. ...
Page 4
Output Voltage ( Parameter Conditions Short Circuit (Note 7) Current = 100Ω Maximum Line R O ≤ Transient LM2940, T 100 ms LM2940/883, T ≤ LM2940C 100Ω Reverse Polarity Input Voltage ...
Page 5
Output Voltage ( Parameter Conditions Dropout Voltage 100 mA O Short Circuit (Note 7) Current = 100Ω Maximum Line R O ≤ Transient T 100 ms LM2940 LM2940C = 100Ω Reverse Polarity ...
Page 6
Output Voltage ( Parameter Conditions Ripple Rejection f = 120 Hz rms I = 100 mA O LM2940 LM2940C kHz rms Long Term Stability ...
Page 7
Typical Performance Characteristics Dropout Voltage Output Voltage vs. Temperature Quiescent Current Dropout Voltage vs. Temperature 882213 Quiescent Current vs. Temperature 882215 Quiescent Current 882217 7 882214 882216 882218 www.national.com ...
Page 8
Line Transient Response Ripple Rejection Low Voltage Behavior www.national.com Load Transient Response 882219 Low Voltage Behavior 882221 Low Voltage Behavior 882226 8 882220 882225 882227 ...
Page 9
Low Voltage Behavior 882228 Low Voltage Behavior 882230 Output at Voltage Extremes 882232 Low Voltage Behavior Output at Voltage Extremes Output at Voltage Extremes 9 882229 882231 882233 www.national.com ...
Page 10
Output at Voltage Extremes Output at Voltage Extremes Peak Output Current www.national.com Output at Voltage Extremes 882234 Output Capacitor ESR 882236 Output Impedance 882208 10 882235 882206 882222 ...
Page 11
Maximum Power Dissipation (TO-220) 882223 Maximum Power Dissipation (TO-263) 882210 Maximum Power Dissipation (SOT-223) 11 882224 www.national.com ...
Page 12
Equivalent Schematic Diagram www.national.com 12 882201 ...
Page 13
Application Information EXTERNAL CAPACITORS The output capacitor is critical to maintaining regulator stabil- ity, and must meet the required conditions for both ESR (Equivalent Series Resistance) and minimum amount of ca- pacitance. MINIMUM CAPACITANCE: The minimum output capacitance required to ...
Page 14
The value of θ will vary from about 1.5°C/W to (C−H) about 2.5°C/W (depending on method of at- tachment, insulator, etc.). If the ...
Page 15
FIGURE 6. Maximum Power Dissipation vs. T SOT-223 Package 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 ...
Page 16
Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 3-Lead SOT-223 Package NS Package Number MP04A 16 Lead Dual-in-Line Package (J) See NS Package Number J16A 16 ...
Page 17
Lead Surface Mount Package (WG) See NS Package Number WG16A 3-Lead TO-220 Plastic Package (T) NS Package Number TO3B 17 www.national.com ...
Page 18
TO-263 Surface Mount Package (MP) NS Package Number TS3B 8-Lead LLP Order Number LM2940LD-5.0, LM2940LD-8.0, LM2940LD-9.0, LM2940LD-10, LM2940LD-12 or LM2940LD-15 NS Package Number LDC08A 18 ...
Page 19
Notes 19 www.national.com ...
Page 20
... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...