XC9243 - Torex

XC9243 2A Synchronous Step-Down DC/DC Converter

The XC9242/XC9243 series is a group of synchronous-rectification step-down DC/DC converters with a built-in 0.11Ω Pchannel MOS driver transistor and 0.12Ω N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. The small on-resistances of these two internal driver transistors enable a high efficiency, stable power supply with .

Features

Driver Transistor Input Voltage Range Output Voltage Setting FB Voltage High Efficiency Output Current Oscillation Frequency Maximum Duty Cycle Functions Output Capacitor Control Methods Operating Ambient Temperature Packages Environmentally Friendly : 0.11Ω P-ch Driver Transistor 0.12Ω N-ch Switching Transistor : 2.7V ~ 6.0V : 0.9V ~ VIN : 0.8V ± 2.0% : 95% : 2.0A : 1.2MHz±15%, 2.4MHz±15% : 100% : Soft-Start CL Discharge Current Limit Circuit（automatic return） Thermal Shutdown UVLO : Low ESR Ceramic Capacitor : PWM control (XC9242) PWM/PFM Auto (XC9243) : -40℃ ~ 85℃ : USP-10B, SOP-8FD : EU R.