一般說明：MAX1644EAE+T
MAX1644EAE+T恒定關(guān)斷時(shí)間，PWM降壓型DCDC轉(zhuǎn)換器非常適合PC等應(yīng)用卡，CPU子卡和臺式計(jì)算機(jī)總線終端板。設(shè)備內(nèi)部功能同步整流實(shí)現(xiàn)高效率和減少組件數(shù)量。不需要外部肖特基二極管。內(nèi)部0.10ΩPMOS電源開關(guān)和0.10ΩNMOS同步整流器輕松切換提供高達(dá)2A的連續(xù)負(fù)載電流。的
MAX1644EAE+T產(chǎn)生預(yù)設(shè)的+ 3.3V或+ 2.5V輸出電壓或從+ 1.1V至VIN的可調(diào)輸出。它效率高達(dá)95％。
MAX1644EAE+T采用獨(dú)特的電流模式，恒定關(guān)斷時(shí)間，PWM控制方案，其中包括一個(gè)空閑Mode™在輕載時(shí)保持高效率操作。可編程的恒定截止時(shí)間架構(gòu)可將開關(guān)頻率設(shè)置為最高350kHz，從而使用戶可以優(yōu)化性能折衷效率，輸出開關(guān)噪聲，組件之間大小和成本。該設(shè)備還具有可調(diào)軟啟動以限制啟動期間的浪涌電流，為100％用于低壓差操作的占空比模式，以及將輸入與電源斷開的低功耗停機(jī)模式輸出，并將電源電流降低至1μA以下。的
MAX1644EAE+T采用16引腳SSOP封裝。
應(yīng)用領(lǐng)域：MAX1644EAE+T
+ 5V至+ 3.3V / + 2.5V轉(zhuǎn)換
CPU I / O供應(yīng)
+ 3.3V PC卡和CardBus應(yīng)用
筆記本和子筆記本計(jì)算機(jī)
桌面總線終端板
CPU子卡供應(yīng)
特征：MAX1644EAE+T
♦±1％的輸出精度
♦95％效率
♦內(nèi)部PMOS和NMOS開關(guān)
VIN = + 4.5V時(shí)為70mΩ導(dǎo)通電阻
VIN = + 3V時(shí)100mΩ導(dǎo)通電阻
♦輸出電壓
+ 3.3V或+ 2.5V引腳可選
+ 1.1V至VIN可調(diào)
♦+ 3V至+ 5.5V輸入電壓范圍
♦360μA（最大）工作電源電流
♦<1μA的關(guān)斷電源電流
♦可編程的恒定關(guān)斷時(shí)間操作
♦350kHz（最大）開關(guān)頻率
♦輕載時(shí)的空閑模式操作
♦熱關(guān)斷
♦可調(diào)軟啟動浪涌電流限制
♦低壓降操作期間的100％占空比
♦輸出短路保護(hù)
♦16引腳SSOP封裝
產(chǎn)品屬性：MAX1644EAE+T
類型描述選擇
類別 集成電路（IC）PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器
制造商 Maxim Integrated
系列 -
包裝 卷帶（TR）剪切帶（CT）Digi-Reel® 得捷定制卷帶
零件狀態(tài) 在售
功能 降壓
輸出配置 正
拓?fù)?降壓
輸出類型 可調(diào)節(jié)（可編程）
輸出數(shù) 1
電壓 - 輸入（最小值） 3V
電壓 - 輸入（最大值） 5.5V
電壓 - 輸出（最小值/固定） 1.1V（2.525V，3.33V）
電壓 - 輸出（最大值） 5.5V
電流 - 輸出 2A
頻率 - 開關(guān) 最高 350kHz
同步整流器 是
工作溫度 -40°C ~ 85°C（TA）
安裝類型 表面貼裝型
封裝/外殼 16-SSOP（0.209"，5.30mm 寬）
供應(yīng)商器件封裝 16-SSOP
基本產(chǎn)品編號MAX1644EAE+T
以下物料均有現(xiàn)貨庫存：MAX1644EAE+T
STM32F101RBT6
STM32F103CBT6
STM32F103C8T6
STM32F103R8T6
STM32F103VBT6
STM32F103RBT6
STM32F103VCT6
STM32F103ZET6
STM32F103VET6
STM32F103RET6
STM32F103RCT6
STM32F103RGT6
STM32F103RCY6TR
STM32F103T8U6
STM32F103VGT6
STM32F103ZGT6
STM32F105RBT6
STM32F105RCT6
STM32F105R8T6
STM32F105VCT6
STM32F107VCT6
STM32F107RCT6
STM32F100R8T6B
STM32F100C6T6B
STM32F100VCT6B
STM32F100RBT6B
STM32F100C8T6B
STM32F100C4T6B
STM32F215RGT6
STM32F205RGT6
STM32F205RET6
STM32F205RCT6
STM32F205VGT6
STM32F205VET6
STM32F205VCT6
STM32F205ZET6
STM32F205ZGT6
STM32F207VCT6
STM32F207VGT6
STM32F207VET6
MAX1644EAE+T
STM32F207ZET6
STM32F207ZGT6
STM32F373CCT6
STM32F301K8T6
STM32F302C8T6
STM32F302CBT6
STM32F302RCT6
STM32F302RBT6
STM32F302K8U6
STM32F302VET6
STM32F302VDT6
STM32F302VCT6
STM32F303CBT6
STM32F303CCT6
STM32F303RBT6
STM32F303RCT6
STM32F303RET6
STM32F303VCT6
STM32F303VET6
STM32F303ZET6
STM32F411CEU6
STM32F411CCU6TR
STM32F411RCT6
STM32F411RET6
STM32F411VET6
STM32F412RET6
STM32F413VGT6
STM32F415RGT6
STM32F415VGT6
STM32F410CBU6
STM32F410RBT6
STM32F427IGT6
STM32F427VIT6
STM32F427VGT6
STM32F427ZGT6
STM32F427ZIT6
STM32F429BIT6
STM32F429IIT6
STM32F429IGT6
STM32F429VGT6
STM32F429VIT6
STM32F429VET6
STM32F429ZGT6
STM32F429ZIT6
STM32F429ZET6
STM32F446RET6
STM32F446RCT6
STM32F446VET6
STM32F446VCT6
STM32F446ZET6
STM32F446ZEJ6
STM32F469NIH6
STM32F401CEU6
STM32F401CBU6
STM32F401RCT6
STM32F401RBT6
STM32F401RET6
STM32F405RGT6
STM32F405VGT6
STM32F405ZGT6
STM32F407IGT6
STM32F407IGH6
STM32F407IET6
STM32F407VGT6
STM32F407VET6
STM32F407ZET6
STM32F407ZGT6
STM32F407ZGT7
STM32F400CBT6
STM32F722RET6
STM32F730R8T6
STM32F730V8T6
STM32F746VGT6
STM32F756VGT6
STM32F765VIT6
STM32F767ZGT6
STM32F767IGT6
STM32F767NIH6
STM32F767BIT6
STM32F767VIT6
STM32F031K6U6
STM32F031F6P6
STM32F031C6T6TR
STM32F030K6T6
STM32F030F4P6
STM32F030C8T6
STM32F030CCT6
STM32F030C6T6
STM32F030RCT6
STM32F030R8T6
STM32F042K6T6
STM32F042F6P6
STM32F042C6T6
STM32F051K8U6
STM32F051K6U6
STM32F051C8T6
STM32F051C8T7TR
STM32F051R8T6
STM32F051R8T7
STM32F071VBT6
STM32F071CBT6
STM32F071CBU6
STM32F071RBT6
STM32F072VBT6
STM32F072CBT6
STM32F072C8T6
STM32F072CBU6TR
STM32F072RBT6
STM32F072R8T6
STM32F070CBT6
STM32F070F6P6
STM32F070RBT6
STM32G474VET6
STM32G431CBT6
STM32G071CBT6
STM32G071GBU6
STM32G071RBT6
STM32G070KBT6
STM32G070CBT6
STM32G070RBT6
STM32G031F8P6
STM32G031K6T6
STM32G031J6M6
STM32G031G8U6
STM32G030K6T6
STM32G030K8T6
STM32G030C8T6
STM32G030F6P6TR
STM32H743BIT6
STM32H743IIT6
STM32H743VIT6
STM32H743VIH6
STM32H743ZIT6
STM32H743XIH6
STM32H750IBK6
STM32H750VBT6
STM32H750XBH6
STM32L151C8T6A
STM32L151CBT6A
STM32L151CBU6
STM32L151CCU6
STM32L151RCT6
STM32L151RET6
STM32L151RDT6
STM32L151VDT6
STM32L431CCT6
STM32L431CBT6
STM32L431CCU6
STM32L431RCT6
STM32L431VCT6
STM32L433VCT6
STM32L433RCT3
STM32L433RCT6
STM32L452REY6TR
STM32L471RGT6
STM32L471RET6
STM32L475VET6
STM32L476RGT6
STM32L476VET6
STM32L476RCT6
STM32L476VGT6
STM32L496RGT6
STM32L011D4P6
STM32L010C6T6
STM32L011F4U6TR
STM32L011G4U6
STM32L031F6P6
STM32L031K6T6
STM32L031G6U6
STM32L051K8U6
STM32L051C8T6
STM32L051R8T6
STM32L052R8T6
STM32L053R8T6
STM32L071RBT6
STM32L071CBT6
STM32L072RBT6
STM32L072CBT6
STM32L073RZT6
STM32L073V8T6
STM8L151C6T6
STM8L151C8T6
STM8L151K4T6
STM8L151K6T6
STM8L151G6U6
STM8L151G4U6
STM8L152C6T6
STM8L152R8T6
STM8L152M8T6
STM8L101F3P6TR
STM8L101K3T6
STM8L101F3U6TR
STM8L001J3M3TR
STM8L051F3P6
STM8L052C6T6
STM8L052R8T6
STM8L050J3M3TR
