SC1476集成電路（IC）的特殊用途穩(wěn)壓器規(guī)格書PDF中文資料

SC1476屬于集成電路（IC）的特殊用途穩(wěn)壓器。由Semtech Corporation制造生產(chǎn)的SC1476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 SC1476 PowerStep? IV IC is a single chip high-performance hysteretic PWM controller. With its integrated SmartDriver?, it powers advanced IMVP-IV processors. The SC1476 features extended Intel? Mobile Voltage Positioning (IMVP) to increase battery life by reducing the voltage at the processor when it is heavily loaded. It directly supports Intel? SpeedStep? processors for even longer battery life. The SC1476 fully supports Intel’s Geyserville-III core voltage specification. It provides direct “deeper sleep” mode and boot voltage support. Automatic “power-save” is present to prevent negative current flow in the low-side FET during light loading conditions, saving even more power. The high side driver initially turns on with a weak drive to reduce ringing, EMI, and capacitive turn-on of the low side.

Features

? IMVP-IV compliant single chip solution

? High speed hysteretic controller

? 6 bit VID programmable output

? Integrated drivers with soft high side turn-on

? Programmable softstart

? Programmable boot voltage

? Programmable DeeperSleep voltage

? Dynamic phase current matching

? Under-voltage lockout on VccA

? Over-voltage protection on CORE

? Current Limit protection on CORE

? Thermal protection

? Powergood flag with blanking during VID or DeeperSleep mode changes

? Automatic powersave at light load

? Slew rate limited DAC

? TSSOP-38 package

Applications

? Notebook and Laptop computers