RT9953 ic equivalent, 41 ch power management ic.
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One Synchronous Step-Up/Step-Down Selectable Converter Support 2AA or Li-ion Battery Applications Internal Soft-Start Control 4 CHs with Internal Compensation Power Sw.
for DSC as follows : CH1 is a synchronous step-up output for motor or DSC system I/O power CH2 is a selectable synchrono.
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