XC9244 Datasheet | Torex Semiconductor

DESCRIPTION ☆Green Operation patible The XC9244/XC9245 series is a group of synchronous-rectification type step-down DC/DC converters with a built-in 0.65ΩP-channel MOS driver transistor and 0.45Ω N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. Output current of 400m A (MAX.) to be configured using only a coil and capacitor connected externally. The output voltage can be set from 0.8V to 4.0V in increments of 0.05V (accuracy: ±2.0%). With an internal switching frequency of 1.2MHz, small external ponents can be used. USPN-6 package is suitable for the application which rfre Toqhmueir PXe Ws Cl9Mo2w4to4p Prso Fef Mirlieedsaunisrdin Psg Wmli Maglhl-ftfixoloeoadtpdfrsri,enhqt.iugehnecfyficcioenntcroyl,caanndbteheac Xh Cie9v2e4d5osvee(rr1iea)s効wisi率d Pe W-r Xa M出n C/g P力9e F2o電M4f ,4l流ow Aah特1di2cc性h Cona(例Vudti It（o Nioコ=mn3aイs.t.6iルc WVal別)hlye比nsws較ittacn）hde-sby mode, due to stop all operation, supply current is reduced to 1μA or less. The integrated CL discha Cr INg=e4.f7uμn Fc(Lti Mon K2w12h Bic Jh475) enables the electric charge at the output capacitor CL to be discharged via the internal disch La=r4g.e7μs Hw,Cit Lc=h10lμo Fc(a Lt Me Kd2b12e Btw J1e0e6n) the VOUT and VSS pins. The CL discharge function prevents malfunction on V1O00UT connecting application during stand-by mode. The XC9244/XC9245 series has a high speed soft-start as fast as 0.25ms in8t0ypical for quick turn-on. Current limiter circuit (Constant Current & Latching) is built-in for preventing from thermal des6t0ruction. With UVLO (Under Voltage Lock Out) function, the internal P channel driver transistor is forced OFF when input voltage bees 2.25V or lower. 100 80 60 Efficiency : EFFI (%) Efficiency : EFFI (%) - APPLICATIONS - Smart phones / Mobile phones - Bluetooth SPM3012(TDK) - FEATURES 20 Driver Transistor Built-In NR3015(TAIYO YUDEN) EPL3015(Coilcraft) : 0.65Ω P-ch Driver Transistor 0.45Ω N-ch Synchronous Switch Trans0istor Input Volta0g.e1 10 : 2.31V00~...