LX8385集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

LX8385屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由美高森美公司制造生產(chǎn)的LX8385穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無(wú)論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對(duì)于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對(duì)噪聲高度敏感的應(yīng)用。

DESCRIPTION

The LX8385/8385A/8385B series ICs are positive regulators designed to provide 3A output current. Each regulator yields higher efficiency than currently available devices with all internal circuitry designed to operate down to a 1V input-to-outputdifferential. In these products, the dropout voltage is fully specified as a function of load current. The LX8385s dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. The LX8385A/85B have a maximum dropout voltage of 1.3V.

KEY FEATURES

■ Three-Terminal Adjustable Or Fixed Output Voltage

■ Guaranteed 1 Voltage Reference Accuracy Over Line, Load And Temperature (LX8385B)

■ Guaranteed < 1.5V Headroom At 3A (LX8385)

■ Guaranteed < 1.3V Headroom At 3A (LX8385A/8385B)

■ Output Current Of 3A Minimum

□ 0.015 Line Regulation

□ 0.1 Load Regulation

APPLICATIONS

■ High Efficiency Linear Regulators

■ Post Regulators For Switching Power Supplies

■ Battery Chargers

■ Constant Current Regulators

■ Graphics & Standard Supplies

■ Processor I/O Supply

■ Low Voltage Memory & Chipset Supplies