描述 Description

The MCP16501 is a cost and size optimized integrated PMIC, compatible with the latest Microchip’s Microprocessor Units (MPU) and associated DRAM Memories. The SAMA5, SAM9X60 and SAMA7G54 series MPUs are supported by dedicated PMIC variants programmed for the different supply voltages and power sequencing requirements.The MCP16501 integrates three DC-DC Buck regulators and one auxiliary LDO, and provides a comprehensive interface to the MPU. All Buck channels can support loads up to 1A and are 100% duty cycle- capable. The 300 mA LDO is provided such that sensitive analog loads can be supported. The DDR memory voltage (Buck2 output) is selectable by means of a 3-state input pin. 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 generations of memory. The default power channel sequencing is built-in and configured?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). The MCP16501 features a low no-load operational quiescent current and it draws less than 10 μA in full shutdown. Active discharge resistors are provided on each output. All Buck channels support safe start-up into pre-biased outputs.The MCP16501 is available in a 24-pin 4 mm x 4 mm VQFN package with an operating junction temperature range from -40°C to +125°C.

特性 Features

Input Voltage: 2.7V to 5.5V
Three 1A Output Current Buck Channels with 100% Maximum Duty Cycle Capability
2 MHz Buck Channels PWM Operation
±1% Voltage Accuracy for DDR (Buck2 Output) and Core (Buck3 Output)
Low Noise, Forced PWM (FPWM) and Low IQ, Light Load, High-Efficiency Mode Available
One Auxiliary 300 mA Low-Dropout Linear Regulator (LDO)
Pin-Selectable Output Voltages for DDR Supply
Built-in Channel Sequencing, Safe Start-up and Reset Assertion Delay
Support of Hibernate and Low-Power modes
Leakage-Free Interfacing to MPU in any Operating Condition through Optimized ESD Protection
250 μA Low-Power Mode Typical Quiescent Current (Bucks and LDO ON, No Load)
10 μA Maximum Shutdown Current
Cost and Size-Optimized BOM
Thermal Shutdown and Current Limit Protection
24-Pin 4 mm × 4 mm QFN Package
-40°C to +125°C Junction Temperature Range

簡介

MCP16501屬于集成電路（IC）的電源管理-專用。由制造生產(chǎn)的MCP16501電源管理 - 專用專用型電源管理集成電路 (PMIC) 用于電源的控制或操作，適合特定或小范圍的目標應(yīng)用，例如汽車氣囊管理、電容器組平衡、AC 公共電力監(jiān)控、存儲器總線端接、接地故障檢測、能量收集、小型引擎管理、處理器或芯片集專用電壓調(diào)節(jié)、負載突降保護、觸覺驅(qū)動器、熱電制冷器控制等。