描述 Description

The FAN4868 is a low?power boost regulator designed to provide a regulated 3.3 V output from a single cell Lithium or Li?Ion battery. Output voltage options are fixed at 3.3 V with a guaranteed maximum load current of 200 mA at VIN = 2.3 V and 300 mA at VIN = 3.3 V. Input current in Shutdown Mode is less than 1 μA, which maximizes battery life.
Light?load PFM operation is automatic and “glitch?free”. The regulator maintains output regulation at no?load with as low as 37 μA quiescent current.
The combination of built?in power transistors, synchronous rectification, and low supply current make the FAN4868 ideal for battery powered applications.
The FAN4868 is available in 6?bump 0.4 mm pitch Wafer?Level Chip Scale Package (WLCSP).

特性 Features

? Operates with Few External Components:1 μH Inductor and 0402 Case Size Input and Output Capacitors
? Input Voltage Range from 2.3 V to 3.2 V
? Fixed 3.3 V Output Voltage Options
? Maximum Load Current >150 mA at VIN = 2.3 V
? Maximum Load Current 300 mA at VIN = 2.7 V, VOUT = 3.3 V
? Low Operating Quiescent Current
? True Load Disconnect During Shutdown
? Variable On?time Pulse Frequency Modulation (PFM) with Light?Load Power?Saving Mode
? Internal Synchronous Rectifier (No External Diode Needed)
? Thermal Shutdown and Overload Protection
? 6?Bump WLCSP, 0.4 mm Pitch

應(yīng)用 Application

? Powering 3.3 V Core Rails
? PDAs, Portable Media Players
? Cell Phones, Smart Phones, Portable Instruments
? PDAs, Portable Media Players
? Cell Phones, Smart Phones, Portable Instruments

簡介

FAN4868UC33X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FAN4868UC33X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。