MAX1749

SOT23 Vibrator Motor Driver

GeneralDescription TheMAX1749allowsforaconstantvibrationforcewhileoperatingfroma+2.5Vto+6.5Vinputrangeanddeliveringupto120mA.APMOSpasstransistorallowsthe80μAsupplycurrenttoremainindependentoftheload. Features ?Fixed1.25VorAdjustable(1.25Vto6.5V)Outpu

MAX1749

SOT23封裝、震動馬達驅動器; ? 1.25V固定輸出或（1.25V至6.5V）可調輸出\n\n? 低成本\n\n? 熱過載保護\n\n? 輸出電流限值\n\n? 電池反接保護\n\n? 0.1nA低關斷電源電流\n\n? 80μA低滿載電源電流;

MAX1749可在+2.5V至+6.5V輸入范圍內工作并提供高達120mA，同時保持恒定振動力。PMOS調整管可使80μA電源電流保持獨立于負載。\n\n 輸出電壓可通過外部電阻分壓器在+1.25V至VIN范圍內調節(jié)。關斷時（ON = 低電平），MAX1749電源電流降至1μA（最大值），以盡可能地減少電池消耗。其他特性包括短路保護、熱關斷保護和電池反接保護。MAX1749采用5引腳SOT23封裝。\n\n ?\n\n

MAX17491

Single-Phase Synchronous MOSFET Driver

GeneralDescription TheMAX17491isasingle-phasesynchronousnoninvertingMOSFETdriver.TheMAX17491isintendedtoworkwithcontrollerICsliketheMAX8736,MAX8786,orMAX17030inmultiphasenotebookCPUcoreregulators. Features ?Single-PhaseSynchronousMOSFETDriver ?0.5ΩLow-SideO

MAX17491GTA+

Single-Phase Synchronous MOSFET Driver

GeneralDescription TheMAX17491isasingle-phasesynchronousnoninvertingMOSFETdriver.TheMAX17491isintendedtoworkwithcontrollerICsliketheMAX8736,MAX8786,orMAX17030inmultiphasenotebookCPUcoreregulators. Features ?Single-PhaseSynchronousMOSFETDriver ?0.5ΩLow-SideO

MAX17497A

AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step-Down Regulator

GeneralDescription TheMAX17497A/MAX17497Bincludebothacurrentmodefixed-frequencyflybackconverterandasynchronousstep-downregulator.Theycontainallthecontrolcircuitryrequiredtodesignwideinput-voltagenonisolatedpowersuppliestosupplymultipleoutputrailsforsmartmeters

MAX17497B

AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step-Down Regulator

GeneralDescription TheMAX17497A/MAX17497Bincludebothacurrentmodefixed-frequencyflybackconverterandasynchronousstep-downregulator.Theycontainallthecontrolcircuitryrequiredtodesignwideinput-voltagenonisolatedpowersuppliestosupplymultipleoutputrailsforsmartmeters

MAX17498A

AC-DC and DC-DC Peak-Current-Mode Converters for Flyback/Boost Applications

GeneralDescription TheMAX17498A/MAX17498B/MAX17498Cdevicesarecurrent-modefixed-frequencyflyback/boostconverterswithaminimumnumberofexternalcomponents.Theycontainallthecontrolcircuitryrequiredtodesignwideinputvoltageisolatedandnonisolatedpowersupplies.TheMAX17498A

MAX17498B

AC-DC and DC-DC Peak-Current-Mode Converters for Flyback/Boost Applications

GeneralDescription TheMAX17498A/MAX17498B/MAX17498Cdevicesarecurrent-modefixed-frequencyflyback/boostconverterswithaminimumnumberofexternalcomponents.Theycontainallthecontrolcircuitryrequiredtodesignwideinputvoltageisolatedandnonisolatedpowersupplies.TheMAX17498A

MAX17498C

AC-DC and DC-DC Peak-Current-Mode Converters for Flyback/Boost Applications

GeneralDescription TheMAX17498A/MAX17498B/MAX17498Cdevicesarecurrent-modefixed-frequencyflyback/boostconverterswithaminimumnumberofexternalcomponents.Theycontainallthecontrolcircuitryrequiredtodesignwideinputvoltageisolatedandnonisolatedpowersupplies.TheMAX17498A

MAX17498C

AC-DC和DC-DC峰值電流模式轉換器，支持反激/Boost應用; ? 峰值電流模式反激/boost轉換器\n? 電流模式控制提供極佳的瞬態(tài)響應\n? 固定開關頻率\n? 250kHz：MAX17498A/MAX17498C\n? 500kHz：MAX17498B \n\n\n? 靈活的誤差放大器可調節(jié)正、負電壓輸出\n? 可編程軟啟動減小輸入浪涌電流\n? 可編程電壓或電流軟啟動\n? 上電就緒指示(PGOOD)\n? 故障狀態(tài)下降低功耗\n? 打嗝式過流保護\n? 有滯回的熱關斷\n\n\n? 可靠保護\n? 可編程限流\n? 輸入過壓保護\n\n\n? 優(yōu)化環(huán)路性能\n? 反激/boost可編程斜率補償，提供最大相位裕量\n\n\n? 高效\n? 低RDSON、175mΩ、額定電壓為65V的內部n溝道MOSFET\n? 無需檢流電阻\n\n\n? 可選擇擴頻模式\n? 節(jié)省空間的16引腳(3mm x 3mm) TQFN封裝;

MAX17498A/MAX17498B/MAX17498C為電流模式固定頻率反激/boost轉換器，具有最少外部元件。器件包含了設計寬輸入隔離電源和非隔離電源所需的所有控制電路。MAX17498A帶有上升/下降欠壓鎖定(UVLO)門限，優(yōu)化用于通用離線式(85V AC至265V AC)應用；MAX17498B/MAX17498C的欠壓鎖定門限適合于低壓DC-DC應用。\n\n MAX17498A/MAX17498C的開關頻率為250kHz，MAX17498B的開關頻率為500kHz，較高的工作頻率允許使用小尺寸磁性元件及濾波元件，用于設計結構緊湊的高性價比電源。EN/UVLO輸入允許用戶在要求的輸入電壓下啟動電源，同時也可作為開/關控制引腳。OVI引腳用于提供輸入過壓保護，在直流輸入電壓超過預計的最大值時，可靠關斷轉換器。\n\n 器件集成了靈活的誤差放大器及精密電壓基準(REF)，終端用戶可以調整正壓輸出或負壓輸出?？删幊滔蘖髟试S使用尺寸適中的原邊開關FET，并為其提供保護。器件能夠支持的最大占空比高于92%，提供可編程斜率補償，優(yōu)化控制環(huán)路性能。器件帶有漏極開路PGOOD輸出，用作上電就緒指示，當反激/boost轉換器達到穩(wěn)壓輸出時進入高阻狀態(tài)。SS引腳可對反激/boost轉換器的軟啟動時間進行編程。打嗝式過流保護以及熱關斷將過流、過熱故障條件下的功耗降到最小。器件采用節(jié)省空間的16引腳(3mm x 3mm) TQFN封裝，引腳間距為0.5mm。\n\n \n\n