FAN5350UCX屬于集成電路（IC）的穩(wěn)壓器-DC-DC開(kāi)關(guān)穩(wěn)壓器。由安森美半導(dǎo)體公司制造生產(chǎn)的FAN5350UCX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(chēng)為“控制器”P(pán)MIC 的類(lèi)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。

描述 Description

The FAN5350 is a step-dow n sw itching voltage regulator that delivers a fixed 1.82V from an input voltage supply of 2.7V to 5.5V. Using a proprietary architecture w ith synchronous rectification, the FAN5350 is capable of delivering 600mA at over 90 efficiency, w hile maintaining a very high efficiency of over 80 at load currents as low as 1mA. The regulator operates at a nominal fixed frequency of 3MHz at full load, w hich reduces the value of the external components to 1μH for the output inductor and 4.7μF for the output capacitor.

特性 Features

■ 3MHz Fixed-Frequency Operation

■ 16μA Typical Quiescent Current

■ 600mA Output Current Capability

■ 2.7V to 5.5V Input Voltage Range

■ 1.82V Fixed Output Voltage

■ Synchronous Operation

■ Pow er-Save Mode

■ Soft-Start Capability

■ Input Under-Voltage Lockout (UVLO)

■ Thermal Shutdow n and Overload Protection

■ 6-Lead 3 x 3mm MLP

■ 5-Bump 1 x 1.37mm WLCSP

Applications

■ Cell Phones, Smart-Phones

■ Pocket PCs

■ WLAN DC-DC Converter Modules

■ PDA, DSC, PMP, and MP3 Players

■ Portable Hard Disk Drives