SC1159集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器規(guī)格書PDF中文資料

SC1159屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器。由Semtech Corporation制造生產(chǎn)的SC1159DC-DC 開關(guān)控制器PMIC（電源管理集成電路）DC 到 DC 開關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。

Description

The SC1159 is a synchronous-buck switch-mode controller designed for use in single ended power supply applications where efficiency is the primary concern. The controller is a hysteretic type, with a user selectable hysteresis. The SC1159 is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium? llI and Athlon?, in both single and multiple processor configurations. Inhibit, under-voltage lockout and soft-start functions are included for controlled power-up.

Features

◆ Programmable hysteresis

◆ 5 bit DAC programmable output (1.050V-1.825V)

◆ On-chip power good and OVP functions

◆ Designed to meet latest Intel specifications

◆ Up to 95 efficiency

◆ +1 tolerance over temperature

Applications

◆ Server Systems and Workstations

◆ Pentium? III Core Supplies

◆ AMD Athlon? Core Supplies

◆ Multiple Microprocessor Supplies

◆ Voltage Regulator Modules