描述 Description

The MIC22700 is a high efficiency, 7A Integrated switch synchronous buck (step-down) regulator. The MIC22700 is optimized for highest efficiency. The device achieves more than 95% efficiency while still switching at 1MHz over a broad range. The device works with a small 1μH inductor and down to 47μF output capacitor. The ultra-high speed control loop keeps the output voltage within regulation even under extreme transient load swings commonly found in FPGAs and low voltage ASICs. The output voltage can be adjusted down to 0.7V to address all low voltage power needs. A full range of sequencing and tracking options is available with the MIC22700. The Enable/Delay pin combined with the Power Good/POR pin allows multiple outputs to be sequenced in any way during turn-on and turn-off. The RC (Ramp Control?) pin allows the device to be connected to another product in the MIC22xxx and/or MIC68xxx family, to keep the output voltages within a certain ?V on start up.

特性 Features

? Input voltage range: 2.6V to 5.5V
? Output voltage adjustable down to 0.7V
? Output current up to 7A
? Full sequencing and tracking capability
? Power on Reset/Power Good
? Efficiency >95% across a broad load range
? Easy RC compensation
? 100% maximum duty cycle
? Fully integrated MOSFET switches
? Micropower shutdown
? Thermal shutdown and current limit protection
? -40°C to +125°C junction temperature range

簡(jiǎn)介

MIC22700屬于集成電路（IC）的穩(wěn)壓器-DC-DC開(kāi)關(guān)穩(wěn)壓器。由制造生產(chǎn)的MIC22700穩(wěn)壓器 - DC-DC 開(kāi)關(guān)穩(wěn)壓器DC-DC 開(kāi)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(jí)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(kāi)關(guān)元件，設(shè)備提供的電力會(huì)通過(guò)該元件。