ka278r09 Fairchild Semiconductor, ka278r09 Datasheet
ka278r09
Available stocks
Related parts for ka278r09
ka278r09 Summary of contents
Page 1
... The KA278R09 is a low-dropout voltage regulator suitable for various electronic equipments. It provide constant voltage power source with TO-220F-4 lead full mold package. Dropout voltage of KA278R09 is below 0.5V in full rated current(2A). This regulator has various function such as peak current protection, thermal shut down, overvoltage protection and output disable function ...
Page 2
... KA278R09 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=11V, Io=1.0A, Ta= unless otherwise specified) Parameter Symbol Output Voltage ...
Page 3
... Figure 2. Quiescent Current vs. Input Voltage 9.12 9.08 9.04 9.00 8.96 8.92 8.88 8.84 2 2.5 3 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 KA278R09 RL Input voltage Vin ( 100 125 o TEMPERATURE Tj( C) Io=2A 1.5A 1.0A 0. 100 125 o Junction temperature Tj( ...
Page 4
... KA278R09 Typical Perfomance Characteristics - TEMPERATURE Ta( C) TEMPERATURE Tj( Figure 7. Power Dissipation vs. Temperature(Ta) 4 (Continued) 75 100 125 o C) Figure 8. Overcurrent Protection Characteristics 100 100 100 3.0 3.0 3 1.0 1.0 1.0 2.0 2.0 2.0 4.0 4.0 4.0 5.0 5.0 5.0 Output Current(A) Output Current(A) (Typical Value) 6 ...
Page 5
... 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 KA278R09 Vo GND Disable Signal 5 ...
Page 6
... KA278R09 Mechanical Dimensions Package 6 Dimensions in millimeters TO-220F-4L ...
Page 7
... Mechanical Dimensions Package TO-220F-4L (Forming) (Continued) Dimensions in millimeters KA278R09 7 ...
Page 8
... Ordering Information Product Number Package KA278R09TU TO-220F-4L KA278R09YDTU 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 ...