MCP16501/2 Description

The MCP16501/2 are cost and size-optimized PMICs, compatible with Microchip's Embedded Microprocessors Units (EMPUs), that require Dynamic Voltage Scaling (DVS) with the use of High-Performance mode (HPM, MCP16502 only). MCP16501/2 are compatible with SAMA5D2, SAM9X6, and SAMA7G MPUs, which are supported by dedicated device variants.

• MCP16501 integrates three DC-DC Buck regulators and one auxiliary Low-Dropout Regulator (LDO) while the MCP16502 has four DC-DC Buck regulators and two auxiliary LDOs.
• All Buck channels can support loads up to 1A and are 100% duty cycle capable.
• The 300 mA LDOs enable support for sensitive analog loads.
• The DDR memory voltage (Buck2 output) is selectable by means of two 3-state input pins. This method allows greater precision in the output voltage setting by eliminating inaccuracies due to external feedback resistors while minimizing external component count. The voltage selection set allows easy migration across different memory generations.
• The default power channel sequencing is built-in according to the requirements of the MPU. A dedicated pin (LPM) facilitates the transition to Low-Power modes and the implementation of backup mode with DDR in self-refresh (Hibernate mode).
• MCP16501/2 feature a low, no-load operational quiescent current, under 300 µA. Active discharge resistors are provided on each output and the output active discharge feature is enabled by default. A pre-biased output safe start-up protects the device in case of incomplete output capacitor discharge.