ka278r51 Fairchild Semiconductor, ka278r51 Datasheet
ka278r51
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ka278r51 Summary of contents
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... The KA278R51 is a low-dropout voltage regulator suitable for various electronic equipments. It provide constant volt- age power source with TO-220 4 lead full mold package. Dropout voltage of KA278R51 is below 0.5V in full rated current(2A). This regulator has various function such as peak current protection, thermal shut down, overvoltage pro- tection and output disable function ...
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... KA278R51 Absolute Maximum Ratings Parameter Input Voltage Disable Voltage Output Current Power Dissipation 1 Power Dissipation 2 Junction Temperature Operating Temperature Electrical Characteristics (Vin=7V, Io=1.0A +25 C, unless otherwise specified) Parameter Symbol Output Voltage Load Regulation Line Regulation Ripple Rejection Ratio Dropout Voltage Disable Voltage High ...
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... Figure 2.Quiescent Current vs. Input Voltage 5.16 5.14 5.12 5.10 5.08 5.06 5.04 5. 2.5 Figure 4.Output Voltage vs. Temperature(Tj) 0.6 0.5 0.4 0.3 0.2 0.1 0 100 125 o C) Figure 6.Dropout Voltage vs. Junction Temperature KA278R51 RL Input voltage Vin ( 100 125 o TEMPERATURE Tj( C) Io=2A 1.5A 1.0A 0.5A - 100 125 o Junction temperature ...
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... KA278R51 Typical Perfomance Characteristics (continued -25 TEMPERATURE Tj( Figure 7.Power Dissipation vs. Temperature(Ta = 0.5V IN rms 0 0.1 1 Input Ripple Frequency (KHz) Figure 9.Ripple Rejection vs. Input Ripple Frequency 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 -2.5 2 Time ( s) Figure 11.Load Transient Response ...
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... Typical Application Vin Ci • required if regulator is located an appreciable distance from power supply filter. • Co improves stability and transient response.(Co > Vdis Figure 1.Application Circuit GND Disable Signal KA278R51 5 ...
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... KA278R51 Mechanical Dimensions Package 6 Dimensions in millimeters TO-220F-4L ...
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... Ordering Information Product Number Package KA278R51 TO-220F-4L Operating Temperature - KA278R51 7 ...
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... KA278R51 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...