TSMC 40nm ULP eFlash combo voltage regulator combining a high efficiency DC-DC for operation in normal mode and an ultra-low quiescent uLDO to supply AON domain during sleep mode

The RAR-eSR-qLR Retention Alternating Regulator combines two regulation sub-components: a high-efficiency switching regulator (eSR) and an ultra low quiescent linear regulator (qLR). A Regulation Control Unit (RCU) manages booting and transitions between each regulation functions.

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