描述 Description

The MIC2207 is a high efficiency PWM buck (step-down) regulators that provides up to 3A of output current. The MIC2207 operates at 2MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200kHz.The low on-resistance internal p-channel MOSFET of the MIC2207 allows efficiencies over 94%, reduces external components count and eliminates the need for an expensive current sense resistor.The MIC2207 operates from 2.7V to 5.5V input and the output can be adjusted down to 1V. The devices can operate with a maximum duty cycle of 100% for use in low-dropout conditions.

特性 Features

? 2.7V to 5.5V supply voltage
? 2MHz PWM mode
? Output current to 3A
? >94% efficiency
? 100% maximum duty cycle
? Adjustable output voltage option down to 1V
? Ultra-fast transient response
? Ultra-small external components stable with a 1μH inductor and a 4.7μF output capacitor
? Fully integrated 3A MOSFET switch
? Micropower shutdown
? Thermal shutdown and current limit protection
? -40°C to +125°C junction temperature range

簡介

MIC2207屬于集成電路（IC）的DCDC開關穩(wěn)壓器。由制造生產(chǎn)的MIC2207穩(wěn)壓器 - DC-DC 開關穩(wěn)壓器DC-DC 開關穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設備，用于需要穩(wěn)定 DC 輸入電壓和/或將其轉換為不同幅度的輸出電壓的應用。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元件，設備提供的電力會通過該元件。