描述 Description

The AAT3183 is a high efficiency step-down charge pump converter providing up to 300mA of output current. The 1/2x (gain) charge pump converter opology provides enhanced efficiency over conventional LDO regulators and requires only three low cost ceramic capacitors. No inductor is required; saving space and cost when compared to inductive switching regulators.
The AAT3183 typically consumes 35μA of no load (zero output current) quiescent current, making it ideal for portable battery powered systems. Shutdown current is less than 1μA when the device is disabled.
The AAT3183 soft-start prevents excessive inrush current while providing monotonic turn-On characteristics. The device includes integrated short-circuit and over-temperature (thermal) protection to safeguard system components.
The AAT3183 is available in a Pb-free 2.0x2.1mm SC70JW-8 package. Operating temperature range is -40oC to +85oC.

特性 Features

·VIN Range: 2.7V to 5.5V
·VOUT: 1.5V and 1.34V
·300mA Maximum Output Current
·Ultra-Small Solution for Portable Applications
·Small Footprint
·Only Three External Ceramic Capacitors Required
·No Inductor
·High Efficiency over the Output Current Range
·Excellent Transient Performance
·35μA Typical Quiescent Current
·<1.0μA Shutdown Current
·Up to 2MHz Switching Frequency
·Integrated Soft-Start
·Short-Circuit and Thermal Protection
·2.0x2.1mm SC70JW-8 Package
·-40oC to 85oC Temperature Range

簡介

AAT3183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AAT3183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。