KA78T15

www.fairchildsemi.com KA78TXX 3-Terminal 3A Positive Voltage Regulator Features Output current in excess of 3.0A Output transistor safe operating area compensation Power dissipation :25W Internal short circuit current limiting Internal thermal overload protection Output voltage offered in 4% tolerance No external components required Output voltage of 5, 12 and 15V Description This family of fixed voltage regulators are monolithic integrated circuit capable of driving loads in excess of 3.0 A. TO-220 1 1.Input 2. GND 3. Output Internal Block Diagram Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation KA78TXX Absolute Maximum Ratings Parameter Input Voltage (for VO = 5V to 12V) (for VO = 15V) Power Dissipation Thermal Resistance, Junction to Air Tc = +25 °C Thermal Resistance ,Junction to Case Operating Junction Temperature Range Storage Temperature Range Symbol VI PD RθJA RθJC TJ TSTG Value 35 40 Internally limited 65 2.5 0 ~ +150 -65 ~ +150 Unit V V °C/W °C/W °C °C Electrical Characteristics(KA78T05) (VI = 10V, IO = 3.0 A, 0 °C ≤ TJ ≤ +125 °C, Po ≤ PMAX , unless otherwise specified.) Parameter Output Voltage Symbol Vo Conditions 5mA ≤ Io ≤ 3.0A , TJ = +25 °C 7.3V ≤ VI ≤ 20V, 5mA ≤ Io ≤ 2.0A 7.2V ≤ VI ≤ 35V , Io=5mA, TJ =+25 °C 7.2V ≤ VI ≤ 35V , Io=1.0A, TJ = +25 °C 7.5V ≤ VI ≤ 20V, Io =2.0A 8.0V ≤ VI ≤ 12V, Io =3.0A 5mA ≤ Io ≤ 3.0A , TJ = +25 °C 5mA ≤ Io ≤ 3.0A Pulse =10ms, P = 20W TA = +25 °C 5mA ≤ Io ≤ 3.0A , TJ = +25 °C 5mA ≤ Io ≤ 3.0A 7.2V ≤ VI ...