描述 Description

The SC2443 is a high-frequency dual synchronous step-down switching power supply controller. It provides out-of-phase high-current output gate drives to all N-channel MOSFET power stages.

特性 Features

·Wide input voltage range: 4.7V to 16V
·0.5V feedback voltage for low-voltage outputs
·Programmable frequency up to 1 MHz per phase
·2-Phase synchronous continuous conduction mode for high efficiency step-down converters
·Out-of-phase operation for low input current ripples
·Output source and sink currents
·Fixed frequency peak current-mode control
·75mV/-110mV maximum current sense voltage
·Inductor DCR current-sensing for low-cost applications
·Dual outputs or 2-phase single output operation
·Excellent current sharing between individual phases
·Individual soft-start, overload shutdown and enable
·External reference input for DDR applications
·External synchronization
·Industrial temperature range
·4mm X 4mm X1mm 24-lead MLPQ package

應(yīng)用 Application

·Telecommunication power supplies
·DDR memory power supplies
·Graphic power supplies
·Servers and base stations

簡介

SC2443屬于集成電路（IC）的特殊用途穩(wěn)壓器。由制造生產(chǎn)的SC2443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(jī)管理等。