XC9303 Datasheet - Torex Semiconductor

XC9303 Synchronous Step-Up & Down DC/DC Controller

The XC9303 series is highly efficient, synchronous PWM, PWM/PFM switchable step-up & down DC/DC controller ICs. A versatile, large output current and high efficiency, step-up/down DC/DC controller can be realized using only basic external components - transistors, coil, diode, capacitors, and resist.

XC9303 Features

* Input Voltage Range : 2.0V ~ 10V Output Voltage Range Oscillation Frequency : 2.0V ~ 6.0V (set freely with VFB=0.9V) : 300kHz (±15%) Output Current : 800mA(VIN = 4.2V, VOUT=3.3V) Stand-By Function : 3.0μA (MAX.) Maximum Duty Cycle : 78% (TYP.) High Efficiency : 84% (TYP.) Soft-Start Time

XC9303_TorexSemiconductor.pdf