LM2937IMP-3.3/NOPB National Semiconductor, LM2937IMP-3.3/NOPB Datasheet

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... Wide output capacitor ESR range, 0.01Ω 5Ω n Internal short circuit and thermal overload protection n Reverse battery protection n 60V input transient protection n Mirror image insertion protection 10011324 Order Number LM2937IMP-2.5, LM2937IMP-3.3, See NS Package Number MA04A 10011326 Order Number LM2937ES-2.5, LM2937ES-3.3, See NS Package Number TS3B DS100113 ...

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... The small physical size of the SOT-223 package does not allow sufficient space to provide the complete device part number. The actual devices will be labeled with the package markings shown. www.national.com Output Voltage 2.5 3.3 LM2937ES-2.5 LM2937ES-3.3 LM2937ET-2.5 LM2937ET-3.3 LM2937IMP-2.5 LM2937IMP-3.3 L68B L69B 2 (Continued) NSC Package Package Drawing TS3B TO-263 ...

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... SOT-223 (Vapor Phase, 60 seconds) 215˚C SOT-223 (Infrared, 15 seconds) ESD Susceptibility (Note 3) Operating Conditions 26V Temperature Range (Note 2) 60V LM2937ES, LM2937ET Internally Limited 150˚C −65˚C to +150˚C LM2937IMP Input Voltage Range 260˚C 230˚C (Note 25˚ 2.5V Conditions Typ ≤ ...

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Electrical Characteristics Note 5: The minimum input voltage required for proper biasing of these regulators is 4.75V. Below this level the outputs will fall out of regulation. This effect is not the normal dropout characteristic where the output falls out ...

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Typical Performance Characteristics Line Transient Response Ripple Rejection Maximum Power Dissipation (TO-220) (Continued) Load Transient Response 10011308 10011310 Maximum Power Dissipation 10011312 5 10011309 Output Impedance 10011311 (TO-263) (Note 2) 10011313 www.national.com ...

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Typical Performance Characteristics Low Voltage Behavior (2.5V) Output at Voltage Extremes Peak Output Current www.national.com (Continued) Low Voltage Behavior (3.3) 10011314 10011316 10011318 6 10011315 Output Capacitor ESR 10011317 ...

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Typical Application * Required if the regulator is located more than 3 inches from the power supply filter capacitors. ** Required for stability. C must be at least 10 µF (over the full expected operating temperature range) and located as ...

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Application Hints EXTERNAL CAPACITORS The output capacitor is critical to maintaining regulator sta- bility, 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 ...

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Application Hints (Continued) When a value for θ is found using the equation shown, (H−A) a heatsink must be selected that has a value that is less than or equal to this number. θ is specified numerically by the heatsink ...

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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Plastic Package Order Number LM2937ET-2.5, LM2937ET-3.3, NS Package Number T03B TO-263 3-Lead Plastic Surface Mount Package Order Number LM2937ES-2.5, LM2937ES-3.3, NS Package Number TS3B 10 ...

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... Deutsch Tel: +49 (0) 69 9508 6208 English www.national.com Français Tel: +33 ( 8790 Order Number LM2937IMP-2.5, LM2937IMP-3.3, NS Package Number MA04A 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness ...