一般說明：MAX668EUB+T
MAX668EUB+T/ MAX669恒定頻率，脈寬調制（PWM），電流模式DC-DC控制器為設計用于各種DC-DC轉換應用包括升壓，SEPIC，反激和隔離輸出配置。功率水平可以達到20W或更高控制轉換效率超過90％。的1.8V至28V的輸入電壓范圍支持廣泛的電池和交流電源輸入。先進的BiCMOS設計特點：低工作電流（220μA），可調工作頻率（100kHz至500kHz），軟啟動和SYNC輸入，使MAX668EUB+T/ MAX669振蕩器能夠鎖定到外部時鐘。DC-DC轉換效率低100mV的電流檢測電壓以及Maxim的專有的空閑模式™控制方案。控制器在中負載和重負載下以PWM模式工作最低的噪聲和最佳效率，然后僅以需要（減少電感電流）以減少工作電流并在輕負載下最大化效率。還包括邏輯電平關閉輸入，從而減少了電源電流至3.5μA。
MAX669，針對低輸入電壓進行了優化，具有保證1.8V的啟動電壓，需要自舉操作（IC由升壓輸出供電）。它支持輸出電壓高達28V。MAX668EUB+T與輸入低至3V，并且可以自舉或非自舉（由輸入電源或其他電源供電的IC）連接。如果不引導，它對輸出電壓沒有限制。兩種IC均采用非常緊湊的10引腳μMAX封裝。

優點和特點：MAX668EUB+T
●1.8V最小啟動電壓（MAX669）
●寬輸入電壓范圍（1.8V至28V）
●微型10引腳μMAX封裝
●電流模式PWM和空閑模式™操作
●效率超過90％
●可調100kHz至500kHz振蕩器或
SYNC輸入
●220μA靜態電流
●邏輯級關閉
●軟啟動

應用領域：MAX668EUB+T
●蜂窩電話
●電信硬件
●局域網和網絡系統
●POS系統

制造商: Maxim Integrated
產品種類: 開關控制器
RoHS: 詳細信息
拓撲結構: Boost
輸出端數量: 1 Output
開關頻率: 500 kHz
占空比 - 最大: 94 %
輸入電壓: 28 V
輸出電壓: 3 V to 28 V
輸出電流: 1000 mA
最小工作溫度: - 40 C
最大工作溫度: + 85 C
安裝風格: SMD/SMT
封裝 / 箱體: UMAX-10
封裝: Reel
封裝: Cut Tape
封裝: MouseReel
商標: Maxim Integrated
開發套件: MAXREFDES9#
下降時間: 200 ns
絕緣: Isolated
工作電源電流: 0.22 mA
工作電源電壓: 28 V
輸出類型: Adjustable
產品: PWM Step-Up Controllers
產品類型: Switching Controllers
上升時間: 200 ns
系列:MAX668EUB+T
關閉: Shutdown
工廠包裝數量: 2500
子類別: PMIC - Power Management ICs
類型: Current Mode PWM Controllers
零件號別名: MAX668
單位重量: 23 mg

以下物料均有現貨庫存：MAX668EUB+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

MAX668EUB+T
STM32F215RGT6
STM32F205RGT6
STM32F205RET6
STM32F205RCT6
STM32F205VGT6
STM32F205VET6
STM32F205VCT6
STM32F205ZET6
STM32F205ZGT6
STM32F207VCT6
STM32F207VGT6
STM32F207VET6
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