DESCRIPTION

The LX8382/8382A series ICs are positive regulators designed to provide 10A output current. All internal circuitry is designed to operate down to a 1V input-to-output differential, so the LX8382/82A can operate with greater efficiency than previously available devices. The dropout voltage for each product is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.4V for the LX8382 and 1.2V for the LX8382A at maximum output current, decreasing at lower load currents. Fixed versions are also available and specified in the Available Options table below. The LX8382/82A have 1 initial voltage reference accuracy and 2 over line, load and temperature.

The LX8382/82A series devices are pin-compatible with earlier 3-terminal regulators, such as the 117 series products. While a 10μF output capacitor is required on both input and output of these new devices, this capacitor is generally included in most regulator designs.

KEY FEATURES

■ THREE-TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLTAGE

■ GUARANTEED < 1.4V HEADROOM AT 10A (LX8382)

■ GUARANTEED < 1.2V HEADROOM AT 10A (LX8382A)

■ OUTPUT CURRENT OF 10A MINIMUM

□ 0.015 LINE REGULATION

□ 0.15 LOAD REGULATION

■ EVALUATION BOARD AVAILABLE: REQUEST LXE9001 EVALUATION KIT

APPLICATIONS

■ PENTIUM? PROCESSOR APPLICATIONS

■ POST REGULATORS FOR SWITCHING POWER SUPPLIES

■ BATTERY CHARGERS

■ CONSTANT CURRENT REGULATORS

■ CYRIX? 6x86TM

■ AMD-K6TM

■ HIGH-CURRENT MICROPROCESSORS

LX8382-33屬于集成電路（IC） > 線性 + 開(kāi)關(guān)穩(wěn)壓器。美高森美公司制造生產(chǎn)的LX8382-33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(kāi)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。