SI-8005Q

1- 1-3 DC/DC Converter ICs SI-8000Q Series Surface Mount, Current Mode Control Step-down Switching Mode ■ Features Compact surface-mount package (HSOP8) Introduction of current mode control method Output current: 3.5A High efficiency: 90% (Vo = 5 V) Built-in reference oscillator (500 kHz) A ceramic capacitor can be used for output Built-in drooping-type over current and thermal protection circuits Built-in soft start circuit Built-in on/off function (Active Hi) Low current consumption during off ■ Absolute Maximum Ratings Parameter Input Voltage Power Dissipation*1 Symbol VIN PD Junction Temperature*2 Storage Temperature Thermal Resistance (junction to case) Tj Tstg θj-c Ratings 30 1.35 –30 to +1 50 –40 to +1 50 40 Unit V W °C °C °C/W Conditions When mounted on glass–epoxy board, 30×30 mm (copper laminate area : 25×25 mm) Thermal Resistance (junction to ambient air) θj-a 74 °C/W When mounted on glass epoxy board, 30×30mm (copper laminate area : 25×25 mm) *1 : Limited by thermal protection circuit *2: Note that the detection temperature for thermal protection is about 140°C. ■ Applications DVD recorder, FPD-TV Onboard local power supplies OA equipment ■ Recommended Operating Conditions Parameter Symbol DC Input Voltage Range VIN Output Voltage Range VO Output Current Range IO Operating Junction Temperature Range Tjop Operating Temperature Range Top *1 : The minimum value of the input voltage range is 4.75 V or Vo +3 V, whi...