XC95

XC9502 Series " 2ch DC/DC Controller (Step-up + Step-down) " Input Voltage Range 0.9V ~ 10.0V " Output Voltage Externally Set-Up " Switching Frequency 180kHz (±15%) Step-up 80% (Typ.) Step-down 100% " PWM, PWM/PFM Switching Control " High Efficiency Step-up 85% (Typ.) Step-down 92% (Typ.) " Small MSOP-10 package " Maximum Duty Cycle 2ch. Step-up / down DC/DC Controller ICs Mar, 14 2003 Ver. 2 ! Applications # PDAs # Palm Top Computers # Portable Audio Systems # Various Multi-Function Power Supplies ! Features 2ch DC/DC Controller Output 1 : Step-up DC/DC Controller Output 2 : Step-down DC/DC Controller Power Supply Voltage Range : 2.0V ~ 10V Output Voltage Range Output 1 (Step-up) : 1.5V ~ 30.0V Can be set freely with 0.9V (±2.0%) of reference voltage supply and external components. Output 2 (Step-down) : 0.9V ~ 6.0V Can be set freely with 0.9V (±2.0%) of reference voltage supply and external components. Oscillation Frequency Output Current Stand-By Function Package Soft-Start Time Output 1 Output 2 : 180kHz ±15% ! General Description The XC9502 series are PWM controlled, PWM/PFM automatic switching controlled, multi-functional, 2 channel step-up and down DC/DC controller ICs. With 0.9V of standard voltage supply internal, and using externally connected components, the output 1 voltage (step-up DC/DC controller) can be set freely within a range of 1.5V to 30V. Since the output 2 (stepdown DC/DC controller) has a built-in 0.9V reference voltage (accuracy ±2%), 0.9V to 6.0V ...