MIC24046中文资料5A Pin-Programmable Buck Converter数据手册Microchip规格书

描述 Description

MIC24046 is a pin-programmable, high-efficiency, wide-input range, 5A, synchronous step-down regulator. The MIC24046 is perfectly suited for multiple-voltage rail application environments typically found in computing and telecommunication systems. It can be programmed by pin strapping various parameters, such as output voltage, switching frequency, and current-limit values. The pin-selectable switching frequency, valley-current-mode control technique, high-performance error amplifier, and external compensation allow for the best tradeoffs between high-efficiency and the smallest possible solution size.The MIC24046 is pin-out compatible with its I2C-programmable counterparts from the same family. The MIC24046 is available in a thermally-efficient, space-saving, 20-pin 3mm x 3mm QFN package with an operating junction temperature range of -40°C to +125°C.

特性 Features

• 4.5V to 19V input voltage range
• 5A (maximum) output current
• High efficiency (>90%)
• Pin-selectable output voltages:
• 0.7V, 0.8V, 0.9V, 1.0V, 1.2V, 1.5V, 1.8V,2.5V, and 3.3V
• ±1% output voltage accuracy
• Supports safe start-up with pre-biased output
• Pin-selectable current limit and switching frequency
• Internal soft-start and thermal shutdown protection
• Hiccup-mode short-circuit protection
• Available in a 20-pin 3mm x 3mm QFN package
• -40°C to +125°C junction temperature range

简介

MIC24046属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MIC24046稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。