MCP16501 Cost and Size Optimized PMIC for SAMA5DX/SAM9X6/ SAMA7G Series MPUs Features Description Input Voltage: 2.7V to 5.5V The MCP16501 is a cost and size optimized integrated Three 1A Output Current Buck Channels with PMIC, compatible with Microchips EMPUs (Embedded 100% Maximum Duty Cycle Capability Microprocessor Units) and associated DRAM Memo- ries. It is compatible with SAMA5DX, SAM9X6 and 2 MHz Buck Channels PWM Operation SAMA7G MPUs, which are supported by dedicated One Auxiliary 300 mA Low-Dropout Linear device variants. Regulator (LDO) The MCP16501 integrates three DC-DC Buck 1% Voltage Accuracy for DDR (Buck2 Output) regulators and one auxiliary LDO, and provides a and Core (Buck3 Output) comprehensive interface to the MPU. Pin-Selectable Output Voltages for Buck2: 1.2V, 1.35V, 1.8V and for Buck3: 1.0V, 1.15V, All Buck channels can support loads up to 1A and are 1.25V 100% duty cycle-capable. MPU-Specific Built-in Default Channel The 300 mA LDO is provided such that sensitive Sequencing and nRSTO Assertion Delay analog loads can be supported. Support of MPU Hibernate, Low-Power Modes The DDR memory voltage (Buck2 output) and MPU Low Noise, Forced PWM (FPWM) and Low I , Q core voltage (Buck3 output) are selectable by means of Light Load, High-Efficiency Mode Available two 3-state input pins. This method allows greater pre- Leakage-Free Interfacing to MPU in any cision in the output voltage setting by eliminating inac- Operating Condition through Optimized curacies due to external feedback resistors, while ESD Protection minimizing external component count. The voltage selection set allows easy migration across different 250 A Low-Power Mode Typical Quiescent Cur- generations of memory. rent Bucks and LDO On, No Load 6 A Maximum Shutdown Current (V =4.5V, The default power channel sequencing is built-in IN T = +105C) according to the requirements of the MPU. A dedicated J pin (LPM) facilitates the transition to Low-Power modes Separate LDO EN Input, Compatible to LV Logic and the implementation of Backup mode with DDR in Cost and Size-Optimized BOM self-refresh (Hibernate mode). Thermal Shutdown and Current Limit Protection The MCP16501 features a low no-load operational 24-Pin 4 mm 4 mm VQFN Package quiescent current and it draws less than 6 A (V = IN -40C to +125C Junction Temperature Range 4.5V, T = +105C) in full shutdown. J Applications Active discharge resistors are provided on each output. All Buck channels support safe start-up into pre-biased High-Performance MPUs Power Supply Solutions outputs. C/P, FPGA and DSP Power The MCP16501 is available in a 24-pin 4 mm x 4 mm VQFN package with an operating junction temperature range from -40C to +125C. 2020 Microchip Technology Inc. DS20006388B-page 1MCP16501 Package Types 24-Pin 4 mm x 4 mm VQFN Top View DS20006388B-page 2 2020 Microchip Technology Inc.