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

簡介

MIC24046屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由制造生產(chǎn)的MIC24046穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會通過該元件。