LX1677CLQ集成電路（IC）的特殊用途穩(wěn)壓器規(guī)格書PDF中文資料

LX1677CLQ屬于集成電路（IC）的特殊用途穩(wěn)壓器。由美高森美公司制造生產(chǎn)的LX1677CLQ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)電機電壓調(diào)節(jié)、DDR 端接、液體透鏡控制、摩托車轉(zhuǎn)向信號控制、熱電 (peltier) 冷卻器控制、壓電觸覺控制、閥門控制、小型發(fā)動機管理等。

DESCRIPTION

The LX1677 is a highly integrated VRM power supply controller IC featuring two PWM switching regulator stages.

The two constant frequency voltage-mode PWM phases are configured as a single biphase high current output core supply.

In biphase operation, the high current (>35A) output is generated by a LoadSHARETM? technique that balances the currents in the two phases. Power loss and noise, due to the ESR of the input capacitors, are minimized by operating the PWMs 180° out of phase.

KEY FEATURES

? High Current Biphase Operation

? Outputs As Low As 0.800V

? ? Biphase LoadSHARETM

? ? Transient Correction Loop? Reduces Required Capacitance

? Differential Amplifier For Remote Voltage Sensing

? Integrated High Current MOSFET Drivers

? 200KHz to 1MHz Frequency Operation

? Programmable Slew Rate Control For Start-Up Sequence and VID change

? VID Changes On The Fly

? Power Good Indicator

? Short Circuit Protection

? Output Over Voltage and Under Voltage Protection

? No current-sense resistors

APPLICATIONS

? AMD Athlon 64? and AMD Opteron? Processors

? Processor Core Voltage Supply

? Voltage Regulator Modules