DESCRIPTION

The LX1670 is a complete precision reference and voltage monitor circuit for the Intel Pentium? Pro Processor and other high-end microprocessor supplies. It is designed for use in conjunction with the LX1660/1661 PWM controller. The LX1670 reads a 5-bit voltage identification (VID) code from the microprocessor and sets the output voltage reference to be used by the LX1660/61 controller. Together, they convert +5 or 12V input power to an adjustable output ranging from 1.8VDC to 3.5VDC in 100mV steps (50mV steps below 2.1V) with 1 DC system accuracy.

KEY FEATURES

□ 1 TOTAL OUTPUT ERROR

□ POWER GOOD, UV, 0V COMPARATORS

□ 0V COMPARATOR HAS SCR DRIVE

□ UNDER-VOLTAGE LOCKOUT CAPABILITY

□ 5-BIT INPUT FOR ADVANCED PENTIUM PRO ROCESSOR APPLICATIONS (5TH BIT IS FOR AUTOMATIC GAIN AND OFFSET SCALING)

□ IMPLEMENTS 1 DC ACCURATE CONTROL SYSTEM

□ 14-PIN NARROW BODY SOIC PACKAGE

APPLICATIONS

■ PENTIUM II & PENTIUM PRO VOLTAGE REGULATOR MODULES

■ PROGRAMMABLE POWER SUPPLIES

■ VOLTAGE REFERENCE

■ ADVANCED MICROPROCESSOR SUPPLIES

LX1670CD屬于集成電路（IC） > 特殊用途穩(wěn)壓器。美高森美公司制造生產(chǎn)的LX1670CD特殊用途穩(wěn)壓器該系列產(chǎn)品用于電源控制、某種形式的轉(zhuǎn)換，適用于特定的復(fù)雜應(yīng)用。因此，各種產(chǎn)品特性集差異較大，包括空燃比傳感器接口、汽車交流發(fā)電機(jī)電壓調(diào)節(jié)、DDR 端接、液體透鏡控制、摩托車轉(zhuǎn)向信號(hào)控制、熱電 (peltier) 冷卻器控制、壓電觸覺控制、閥門控制、小型發(fā)動(dòng)機(jī)管理等。