1.9.1 MCP16501 PMIC

MCP16501 is a 4-channel PMIC designed for PCB area constrained applications. It features three 1A DC-DC Buck regulators and one 0.3A auxiliary LDO regulator, and provides a simple, leakage-free interface with the MPU. MCP16501 supports all low-power modes in the MPU, as VDDCPU is fed from the same power rail as VDDCORE. For the same reason, CPU operation is limited to 800 MHz (and not 1 GHz) without the possibility to implement Dynamic Voltage scaling on VDDCPU. See the following figure.

• MCP16501A supports systems based on DDR2 (1.8V) or DDR3L (1.35V) SDRAM memories.
• MCP16501D supports applications using LPDDR2-SDRAM or LPDDR3-SDRAM. In this version, LOUT must be set at 1.8V and enabled by connecting LEN to OUT1.

For further details, refer to the MCP16501 documentation on www.microchip.com.