3S1265R TO-3P ORIGINAL

KA3S1265R INTEGRATED CIRCUIT TO-3P-5L

productivity, and system reliability. It has a basic platform well suited for cost-effective C-TV power supply. TO-3P-5L TO-3PF-5L 1 1 1. DRAIN 2. GND 3. Vcc 4. FB 5. Sync Internal Block Diagram #3 VCC 32V 5V Vref − 5V + 6.4V #4 FB − 1mA 2.5R 1R 9V + 7.5V − + 25V − Thermal S/D OVER VOLTAGE S/D + OSC S R 2µA L.E.B 0.1V S R Q #2 GND Q Good logic Internal bias #1 DRAIN SFET #5 Sync Power on reset Rev.1.0.2 ©2001 Fairchild Semiconductor Corporation KA3S1265R/KA3S1265RF/KA3S1265RD Absolute Maximum Ratings Characteristic