APPLICATIONS
! High Efficiency 92% " Mobile phones (PDC, GSM, CDMA, IMT2000 etc.) ! Low Ripple Rejection 10mV " Bluetooth equipment ! Output Current 500mA " PDA, Portable communication modem (VIN=3.0V, VOUT=1.8V)* " Portable game ! Oscillation Frequency 600kHz, 1.2MHz " Camera, Digital camera ! PWM fixed control (XC9215 series) " Cordless phone ! PWM / PFM automatic switching control (XC9216 series) " Note book computer ! Manual selection of switching control (XC9217 series) ! Maximum Duty Ratio 100% ! Ceramic Capacitor Compatible ! Ultra Small Packages SOT-25, USP-6B ! GENERAL DESCRIPTION
The XC9215/9216/9217 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.6 Ω P-channel driver transistor and 0.7Ω N-channel switching transistor, designed to allow the use of ceramic capacitors. The ICs enable a high efficiency, stable power supply with an output current of 500 mA to be configured using only a coil and two capacitors connected externally. Minimum operating voltage is 2.0 V.