IP Catalog > Analog IP > Power Management IP > Regulator IP > Combo voltage regulator in TSMC 40nm LP eFlash combining a high efficiency DC-DC for operation in normal mode and an ultra-low quiescent uLDO to supply AON domain during sleep mode

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

Overview

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.

Key Features

  • Embedded RCU (Regulator Control Unit) to manage booting and mode transitions and to ensure data integrity
  • Configurable output drive before delivery to fit the application
  • Accessible voltage reference can be used by wake-up circuitry
  • Performances in normal mode: PFM embedded mode allowing high-efficiency at low load
  • High Efficiency (up to 95% peak efficiency)
  • Low Bill-of-Material: fully integrated feedback and active compensation loop to reduce the number of additional external passive components
  • Low Output Ripple
  • Over-temperature/Over-current protected Output

Block Diagram

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

Technical Specifications

Foundry, Node
TSMC 40nm LP eFlash
Maturity
In Production
TSMC
In Production: 40nm LP
Pre-Silicon: 40nm LP
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