XC9217

GO-Compatible Synchronous Step-Down DC/DC High Efficiency :92% Low Ripple Voltage :10mV Output Current :500mA (VIN=3.0V, VOUT=1.8V)* Oscillation Frequency :600kHz, 1.2MHz www.DataSheet4U.com PWM Fixed Control :(XC9215 series) PWM/PFM Automatic Switching Control :(XC9216 series) Manual Selection of Switching Control :(XC9217 series) Maximum Duty Ratio :100% Ceramic Capacitor Compatible Ultra Small Packages :SOT-25, USP-6B APPLICATIONS Mobile phones (PDC, GSM, CDMA, IMT200 etc.) Bluetooth equipment PDAs Portable communication modem Portable games Cameras Digital cameras Cordless phones Notebook computers FEATURES P-ch Driver Tr. Built-in :ON resistance 0.6 N-ch Synchronous Driver Tr. Built-in :ON resistance 0.7 Input Voltage Range :2.0 ~ 6.0V Output Voltage Range :0.9V~4.0V (100mV increments) High Efficiency :92% (TYP.) (VIN=3.0V, VOUT=1.8V, IOUT=100mA)* Output current :500mA (VIN=3.0V, VOUT=1.8V)* Oscillation Frequency :600kHz, 1.2MHz (Fixed frequency accuracy 15%) Ultra Small Packages :SOT-25 USP-6B Soft-start circuit built-in Current limiter circuit built-in (constant current & latching) Low ESR ceramic capacitor compatible * Performance depends on external components and wiring on the PCB. GENERAL DESCRIPTION The XC9215/9216/9217 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.6 P-channel driver transistor and 0.7 N-channel switching transistor, designed to allow the use of ceramic capacitors. The ICs enable a high efficiency, stab...