ka278r05 Fairchild Semiconductor, ka278r05 Datasheet
ka278r05
Available stocks
Related parts for ka278r05
ka278r05 Summary of contents
Page 1
... The KA278R05 is a low-dropout voltage regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220 4 lead full mold package. The dropout voltage of KA278R05 is below 0.5V in full rated current(2A). This regulator has various functions such as a peak current protection, a thermal shut down, an overvoltage protection and an output disable function ...
Page 2
... KA278R05 Absolute Maximum Ratings Parameter Input Voltage Disable Voltage Output Current Power Dissipation 1 Power Dissipation 2 Junction Temperature Operating Temperature Thermal Resistance, Junction-to Case (Note2) Thermal Resistance, Junction-to-Air (Note2) Thermal Shutdown Temperature Electrical Characteristics (Vin=7V, Io=1.0A, Ta= unless otherwise specified) Parameter Symbol Output Voltage ...
Page 3
... Figure 2. Quiescent Current vs. Input Voltage 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4. 2.5 Figure 4. Output Voltage vs. Temperature(Tj) 0.6 0.5 0.4 0.3 0.2 0.1 100 125 o C) Figure 6. Dropout Voltage vs. Junction Temperature RL Input voltage Vin ( 100 Temperature Tj TEMPERATURE Tj( C) Io=2A 1.5A 1. 100 o Junction temperature Tj( C) KA278R05 15 125 125 3 ...
Page 4
... KA278R05 Typical Performance Characteristics - TEMPERATURE Ta( C) Temperature Ta( C) TEMPERATURE Tj( Figure 7. Power Dissipation vs. Temperature(Ta) 4 (Continued) 75 100 125 o C) Figure 8. Overcurrent Protection Characteristics 1.0 1.0 2.0 2.0 3.0 3.0 4.0 4.0 5.0 5.0 Output Current(A) Output Current(A) (Typical Value) 6.0 6.0 ...
Page 5
... KA278R05 Typical Application Vin • required if regulator is located an appreciable distance from power supply filter. • Co improves stability and transient response.(Co > Vdis Figure 1. Application Circuit Vo GND Disable Signal ...
Page 6
... Mechanical Dimensions Package Dimensions in millimeters TO-220F-4L KA278R05 6 ...
Page 7
... Mechanical Dimensions Package TO-220F-4L (Forming) (Continued) Dimensions in millimeters KA278R05 7 ...
Page 8
... KA278R05 Ordering Information Product Number KA278R05TU TO-220F-4L KA278R05YDTU TO-220F-4L(Forming) 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 ...