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MAX8732

High-Efficiency, Quad-Output, Main Power-Supply Controllers for Notebook Computers

GeneralDescription TheMAX8732/MAX8733/MAX8734dualstep-down,switch-modepower-supply(SMPS)controllersgenerate logic-supplyvoltagesinbattery-poweredsystems.TheMAX8732/MAX8733/MAX8734includetwopulse-width modulation(PWM)controllers,adjustablefrom2Vto5.5Vorfixedat5

MAX8732A

High-Efficiency, Quad-Output, Main Power-Supply Controllers for Notebook Computers

TheMAX8732A/MAX8733A/MAX8734Adualstep-down,switch-modepower-supply(SMPS)controllersgeneratelogic-supplyvoltagesinbattery-poweredsystems.TheMAX8732A/MAX8733A/MAX8734Aincludetwopulsewidthmodulation(PWM)controllers,adjustablefrom2Vto5.5Vorfixedat5Vand3.3V.Thesedevic

MAX8732A

高效率、四路輸出、主電源控制器，用于筆記本電腦; \n? 無需電流檢測電阻(MAX8734A) \n? 通過電流檢測電阻實現(xiàn)精確的電流檢測(MAX8732A/MAX8733A) \n? 1.5%輸出電壓精度 \n? 3.3V和5V、100mA自舉線性穩(wěn)壓器 \n? 內(nèi)部軟啟動和軟關(guān)斷輸出放電功能 \n? 具有100ns負載階躍響應(yīng)的Quick-PWM \n? 3.3V和5V固定輸出或可調(diào)輸出(Dual Mode?) \n? 4.5V至24V輸入電壓范圍 \n? 增強型超聲波跳脈沖模式(最小25kHz) \n? 電源就緒(PGOOD)信號 \n? 過壓保護使能/禁止;

MAX8732A/MAX8733A/MAX8734A雙路、降壓型、開關(guān)模式電源(SMPS)控制器能夠在電池供電系統(tǒng)中產(chǎn)生邏輯供電電壓。MAX8732A/MAX8733A/MAX8734A內(nèi)含兩個脈寬調(diào)制(PWM)控制器，提供2V至5.5V可調(diào)輸出或5V和3.3V固定輸出。這些器件具有兩路線性穩(wěn)壓器，提供始終有效的5V和3.3V輸出。每個線性穩(wěn)壓器的輸出電流高達100mA，而且線性穩(wěn)壓器可自動地自舉到主SMPS輸出。MAX8732A/MAX8733A/MAX8734A具有板上上電排序、電源就緒(PGOOD)輸出、數(shù)字軟啟動以及內(nèi)部軟關(guān)斷輸出放電功能(防止關(guān)斷時產(chǎn)生負壓)。此外，當(dāng)VCC降至其UVLO設(shè)置門限以下時(且輸出被使能)，輸出變?yōu)楦咦钁B(tài)。\n 利用Maxim專有的Quick-PWM?快速響應(yīng)、恒導(dǎo)通時間PWM控制技術(shù)，無需檢測電阻即可提供100ns的負載瞬變響應(yīng)時間，同時可保持開關(guān)頻率相對恒定。獨特的超聲波跳脈沖模式可使開關(guān)頻率保持在25kHz以上，從而消除了音頻應(yīng)用中的噪聲。其它特性還包括：跳脈沖模式，能夠在輕載應(yīng)用中保持最高的轉(zhuǎn)換效率；固定頻率PWM模式，可在對噪聲敏感的應(yīng)用中降低RF干擾。\n MAX8732A提供200kHz/5V和300kHz/3.3V SMPS，可實現(xiàn)更高的效率；MAX8733A具有400kHz/5V和500kHz/3.3V SMPS，適用于“薄而輕”的應(yīng)用；MAX8734A具有引腳可選擇的開關(guān)頻率，允許5V/3.3V SMPS工作在200kHz/300kHz或400kHz/500kHz開關(guān)頻率下。MAX8732A/MAX8733A/MAX8734A采用28引腳、QSOP封裝，可工作在擴展級溫度范圍(-40°C至+85°C)。\n MAX8732A/MAX8733A/MAX8734A是MAX1777/MAX1977/MAX1999系列器件引腳兼容的升級產(chǎn)品。MAX1999評估板(EV kit)可用來評估MAX8732A/MAX8733A/MAX8734A。

MAX8732AEEI

High-Efficiency, Quad-Output, Main Power-Supply Controllers for Notebook Computers

TheMAX8732A/MAX8733A/MAX8734Adualstep-down,switch-modepower-supply(SMPS)controllersgeneratelogic-supplyvoltagesinbattery-poweredsystems.TheMAX8732A/MAX8733A/MAX8734Aincludetwopulsewidthmodulation(PWM)controllers,adjustablefrom2Vto5.5Vorfixedat5Vand3.3V.Thesedevic

MAX8732EEI

High-Efficiency, Quad-Output, Main Power-Supply Controllers for Notebook Computers

GeneralDescription TheMAX8732/MAX8733/MAX8734dualstep-down,switch-modepower-supply(SMPS)controllersgenerate logic-supplyvoltagesinbattery-poweredsystems.TheMAX8732/MAX8733/MAX8734includetwopulse-width modulation(PWM)controllers,adjustablefrom2Vto5.5Vorfixedat5

MV8732

SUPERBRIGHTT-13/4(5mm)LEDLAMP-WaterClear

DESCRIPTION ThisT-13/4superbrightLEDhasamoderateviewingangleof30°forconcentratedlightoutput.ItismadewithanAllnGaPLEDthatemitsorangelightat620nm.Itisencapsulatedinawaterclearepoxylenspackage. FEATURES ?PopularT-13/4package ?Superhighbrightnesssuit

OPA8732HP

InfraredLEDChip

OPA8732HP(F)

InfraredLEDChip

PE8732

5SectionTunableBandPassFilterWithNFemaleConnectors

PEX8732

PCIExpressGen3Switch