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MAX773

5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controllers

GeneralDescription TheMAX770–MAX773step-upswitchingcontrollersprovide90efficiencyovera10mAto1Aload.Auniquecurrent-limitedpulse-frequency-modulation(PFM)controlschemegivesthesedevicesthebenefitsofpulse-width-modulation(PWM)converters(highefficiencyatheavyloads)

MAX77301

符合JEITA標準的鋰離子充電器，帶有Smart Power Selector、自動檢測和USB枚舉功能; ? 支持從USB端口充電\n\n? 自動檢測適配器類型\n\n? 輸入電流高達1500mA，充電電流高達900mA\n\n? 無需處理器干預的枚舉\n\n? 支持USB低速和全速操作\n\n? 符合USB 2.0規(guī)范和電池充電規(guī)范（修訂版1.1）\n\n? 符合下一代低壓鋰離子電池規(guī)范\n\n? 輸入過壓保護高達16V\n\n? Smart Power Selector可在電池已放電或無電池的情況下支持電源路徑運行\(zhòng)n\n? 電池檢測功能包括帶有開路保護器的電池組\n\n? 熱調(diào)節(jié)防止過熱\n\n? 充電完成、預充電和時間/溫度錯誤的LED指示燈\n\n? 串行(400kHz) I2C兼容接口\n\n? 關(guān)斷電流：6μA（典型值）\n\n? 2.44mm x 2.44mm、25引腳WLP封裝;

MAX77301是一款符合JEITA標準的*鋰離子線性電池充電器，可通過連接USB端口、專用充電器或通用適配器來運行。該IC通過USB主機或集線器提供自動適配器類型檢測和枚舉。該IC集成了獨立的電池充電開關(guān)、電流檢測電路、MOSFET調(diào)整元件、熱調(diào)節(jié)電路，并且無需外部反向阻斷肖特基二極管，以打造超簡單和小巧的USB兼容充電解決方案。\n\n 該IC具有自動檢測充電適配器類型的功能，因此可以區(qū)分USB 2.0設(shè)備、USB充電器、專用充電器設(shè)備以及標準輸入適配器。請參見完整數(shù)據(jù)手冊中的表2。使能枚舉后，該IC會自動與USB主機協(xié)商，從而無需處理器干預即可從USB 2.0設(shè)備或USB充電器獲得超高的可用充電電流。適配器類型檢測符合USB 2.0以及電池充電規(guī)范修訂版1.1。\n\n 該IC控制單節(jié)鋰離子電池的充電順序，包括電池檢測、預檢測、快速充電、充滿和充電終止。充電過程使用恒定電流、恒定電壓和恒定芯片溫度(CCCVCTj)調(diào)節(jié)進行控制，以確保在所有條件下都能安全運行。該IC還符合JEITA電池充電要求。\n\n Smart Power Selector?功能可充分利用有限的USB或適配器電源。電池充電電流的設(shè)置不受輸入電流限制的影響。電池通過系統(tǒng)未使用的電源充電。電池可在需要時充當輸入源的輔助。在沒有電池、電池放電或電池耗盡的情況下也能維持系統(tǒng)電壓，確保應(yīng)用的正常運行。自動輸入選擇功能可將系統(tǒng)從電池切換到外部電源。\n\n 電池充電特性、輸入電流限制和保護功能完全可通過I2C接口編程。這為與各種適配器和電池尺寸搭配使用提供了靈活性。\n\n 其他功能包括欠壓閉鎖(UVLO)、過壓保護(OVP)、充電狀態(tài)標志、充電故障標志、輸入電源正常監(jiān)測器、電池檢測、符合JEITA標準的充電、充電定時器、3.3V/10mA輔助輸出和一個外部電源開關(guān)。\n\n

MAX77348A

Ultra-Low IQ, Low-Noise 3.5W Buck-Boost Converter

GeneralDescription TheMAX77348isanultra-lowquiescentcurrent,noninverting buck-boostconvertercapableofsupportingup to3.5Woutputpower.Thedeviceemploysaunique controlalgorithmthatseamlesslytransitionsbetween thebuck,buck-boost,andboostmodes,minimizing discontinui

MAX77348AEWE+T

Ultra-Low IQ, Low-Noise 3.5W Buck-Boost Converter

GeneralDescription TheMAX77348isanultra-lowquiescentcurrent,noninverting buck-boostconvertercapableofsupportingup to3.5Woutputpower.Thedeviceemploysaunique controlalgorithmthatseamlesslytransitionsbetween thebuck,buck-boost,andboostmodes,minimizing discontinui

MAX77348B

Ultra-Low IQ, Low-Noise 3.5W Buck-Boost Converter

GeneralDescription TheMAX77348isanultra-lowquiescentcurrent,noninverting buck-boostconvertercapableofsupportingup to3.5Woutputpower.Thedeviceemploysaunique controlalgorithmthatseamlesslytransitionsbetween thebuck,buck-boost,andboostmodes,minimizing discontinui

MAX77348BEWE+T

Ultra-Low IQ, Low-Noise 3.5W Buck-Boost Converter

GeneralDescription TheMAX77348isanultra-lowquiescentcurrent,noninverting buck-boostconvertercapableofsupportingup to3.5Woutputpower.Thedeviceemploysaunique controlalgorithmthatseamlesslytransitionsbetween thebuck,buck-boost,andboostmodes,minimizing discontinui

MAX77371

5A Boost Converter with I2C Interface, Dynamic Voltage Scaling, and Short Circuit Protection

Features ?2.5Vto5.5VInputVoltageRange ?4.5Vto10.0VOutputVoltageRange ?Upto5.0ACycle-by-CycleInductorCurrentLimit ?95%PeakEfficiency ?I2CSerialInterfaceEnabling: ?DynamicVoltageScaling(DVS) ?ModeConfiguration ?CurrentLimitAdjustment ?UltrasonicMode(USMwith

MAX77371

5A Boost Converter with I2C Interface, Dynamic Voltage Scaling, and Short Circuit Protection; ? 2.5V to 5.5V Input Voltage Range\n\n? 4.5V to 10.0V Output Voltage Range\n\n? Up to 5.0A Cycle-by-Cycle Inductor Current Limit\n\n? 95% Peak Efficiency\n\n? I2C Serial Interface Enabling:\n? Dynamic Voltage Scaling (DVS)\n\n? Mode Configuration\n\n? Current Limit Adjustment\n\n\n\n\n? Ultrasonic Mode (USM with fSW > 25kHz) to Alleviate Acoustic Audible Interference for Light Load Operation\n\n? 2MHz Switching Frequency;

The MAX77371 is an ultrasonic, high-performance boost converter with an input voltage range from 2.5V to 5.5V and a configurable switching current limit of up to 5.0A. The IC operates in Ultrasonic mode (fSW > 25kHz) at low loads and transitions into Skip and CCM modes of operation at higher load currents. When selected, the device can operate in forced PWM mode.\n\nThe output voltage can be widely varied between 4.5V and 10.0V.\n\nThe MAX77371 features a true shutdown mode that disconnects VIN and VOUT when the EN pin is pulled low. It also implements short circuit, overcurrent, voltage, and temperature protection features. The MAX77371 is available in a 20-bump, 0.35mm pitch wafer-level package (WLP).\n\nAPPLICATIONS\n\n? AR/VR Laser Driver Bias? Wireless Charging Circuit Bias\n\n\n\n

MAX77371AAWP+T

5A Boost Converter with I2C Interface, Dynamic Voltage Scaling, and Short Circuit Protection

Features ?2.5Vto5.5VInputVoltageRange ?4.5Vto10.0VOutputVoltageRange ?Upto5.0ACycle-by-CycleInductorCurrentLimit ?95%PeakEfficiency ?I2CSerialInterfaceEnabling: ?DynamicVoltageScaling(DVS) ?ModeConfiguration ?CurrentLimitAdjustment ?UltrasonicMode(USMwith

MAX77371PAWP+T

5A Boost Converter with I2C Interface, Dynamic Voltage Scaling, and Short Circuit Protection

Features ?2.5Vto5.5VInputVoltageRange ?4.5Vto10.0VOutputVoltageRange ?Upto5.0ACycle-by-CycleInductorCurrentLimit ?95%PeakEfficiency ?I2CSerialInterfaceEnabling: ?DynamicVoltageScaling(DVS) ?ModeConfiguration ?CurrentLimitAdjustment ?UltrasonicMode(USMwith