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RT9953 4+1 CH Power Management IC


Features:

◆ One Synchronous Step-Up/Step-Down Selectable Converter

◆ Support 2AA or Li-ion Battery Applications

◆ lnternal Soft-Start Cotrol

◆ 4 CHs with lnternal Compensation

◆ Power Switches lntegrated

◆ Up to 95% Efficiency

◆ 100%(max)Duty Cycle for Step-Doen Converter

◆ Adjustable Output Voltage

◆ Fixed 1MHz Switching Frequency

◆ LDO Works with Low-ESR Ceramic Capacitors

◆ Fast Line/Load Transient Response

◆ High pSRR Linear Regulator

◆ RoHS Compliant and Halogen Free



Applications:

◆ CMOS Digital Still Camera

◆ CMOS DV

◆ Portable Devices



Pin Configurations:

◆ WQFN-24L 4*4

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RT9953，RT8010，RT8015A，RT8058，RT8064，RT8258，RT9266，RT9293B，RT8075，RT8070，RT8068A，RT8059常备料RICHTEK产品