LM2940 Unisonic Technologies, LM2940 Datasheet
LM2940
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LM2940 Summary of contents
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... LOW-DROPOUT POSITIVE VOLTAGE REGULATOR DESCRIPTION The UTC LM2940 is a low dropout regulator designed to provide output current with a typically 500mV dropout Voltage and a maximum of 1V capable of reducing the ground current when the differential between the input voltage and the output voltage outrun 3V ...
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... LM2940 MARKING INFORMATION PACKAGE VOLTAGE CODE SOT-223 TO-220 TO-252 TO-263 TO-263-3 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT MARKING QW-R102-016 ...
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... Output Noise Voltage Ripple Rejection Long Term Stability Dropout Voltage Short Circuit Current Maximum Line Transient Reverse Polarity DC Input Voltage Reverse Polarity Transient Input Voltage For LM2940-6.0V PARAMETER Output Voltage Line Regulation Load Regulation Output Impedance Quiescent Current Output Noise Voltage Ripple Rejection ...
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... Output Noise Voltage Ripple Rejection Long Term Stability Dropout Voltage Short Circuit Current Maximum Line Transient Reverse Polarity DC Input Voltage Reverse Polarity Transient Input Voltage For LM2940-9.0V PARAMETER Output Voltage Line regulation Load Regulation Output Impedance Quiescent Current Output Noise Voltage Ripple Rejection ...
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... Output Noise Voltage Ripple Rejection Long Term Stability Dropout Voltage Short Circuit Current Maximum Line Transient Reverse Polarity DC Input Voltage Reverse Polarity Transient Input Voltage UTC LM2940-12V PARAMETER Output Voltage Line regulation Load Regulation Output Impedance Quiescent Current Output Noise Voltage Ripple Rejection ...
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... LM2940 ELECTRICAL CHARACTERISTICS(Cont.) UTC LM2940-15V PARAMETER Output Voltage Line regulation Load Regulation Output Impedance Quiescent Current Output Noise Voltage Ripple Rejection Long Term Stability Dropout Voltage Short Circuit Current Maximum Line Transient Reverse Polarity DC Input Voltage Reverse Polarity Transient Input Voltage Note: Output current will decrease with temperature increase but will not drop below 1A at the maximum specified temperature ...
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... LM2940 TYPICAL APPLICATION Note: 1.C is required if regulator is located far from power supply filter. 1 2.C must be higher than 22μF for stability, and locate as close as possible to the regulator. OUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT QW-R102-016 ...
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... LM2940 TYPICAL CHARACTERISTICS Dropout Voltage vs. Output Current 0.9 T =25°С J 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 200 400 600 Output Current (mA) Output Voltage vs. Temperature 5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 0 -40 40 Temperature (°С) Quiescent Current vs. Input Voltage 200 180 160 140 120 100 80 100mA Input Voltage (V) UNISONIC TECHNOLOGIES CO ...
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... LM2940 TYPICAL CHARACTERISTICS (Cont.) Line Transient Response -10 -20 - -10 Time (μS) Ripple Rejection vs. Frequency 100 1 Frequency (Hz) Low Voltage Behavior =25°С Input Voltage (V) UNISONIC TECHNOLOGIES CO ...
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... LM2940 TYPICAL CHARACTERISTICS (Cont.) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT QW-R102-016 ...
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... LM2940 TYPICAL CHARACTERISTICS (Cont.) Output at Voltage Extremes 25 R =100Ω OUT V =10V OUT -30 -20 - Input Voltage (V) Output at Voltage Extremes 25 R =100Ω OUT V =15V OUT -30 -20 -10 Input Voltage (V) Peak Output Current 3.0 V =14V IN 2.0 1 ...
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... LM2940 TYPICAL CHARACTERISTICS (Cont.) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury ...