MAX17551 - 60V, 50mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current
MAX17551是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX17551是60V, 50mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current，本站介绍了MAX17551的封装应用图解、特点和优点、功能等，并给出了与MAX17551相关的Maxim元器件型号供参考。
MAX17551 - 60V, 50mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current - DC-DC开关调节器 - 60V, Low IQ Synchronous Buck Regulator Enables High Efficiency - 美信半导体
产品概述
The MAX17551 high-efficiency, high-voltage, synchronousstep-down DC-DC converter with integratedMOSFETs operates over a 4V to 60V input. The convertercan deliver up to 50mA and generates output voltagesfrom 0.8V up to 0.9 x VIN. The feedback (FB) voltage isaccurate to within ±1.75% over -40°C to +125°C.
The MAX17551 uses peak-current-mode control and canbe operated in pulse-width modulation (PWM) or pulse-frequencymodulation (PFM) modes.
The device is available in a 10-pin (3mm x 2mm) TDFNand 10-pin (5mm x 3mm) µMAX® packages. Simulationmodels are available.
关键特性
以下关键特性由Maxim美信半导体提供：Reduces External Components and Total CostNo Schottky–SynchronousInternal Compensation for Any Output VoltageBuilt-In Soft-StartAll-ceramic capacitors, Compact LayoutReduces Number of DC-DC Regulators to StockWide 4V to 60V InputAdjustable 0.8V to 0.9 x VIN Output100kHz to 2.2MHz Adjustable Switching Frequencywith External SynchronizationReduces Power Dissipation22µA Quiescent CurrentPeak Efficiency > 90%PFM Enables Enhanced Light-Load Efficiency1.2µA Shutdown CurrentOperates Reliable in Adverse EnvironmentsPeak Current Limit ProtectionBuilt-In Output Voltage Monitoring Active-Low RESETProgrammable EN/UVLO ThresholdMonotonic Startup in to Prebiased LoadOvertemperature Protection-40°C to +125°C Operation热门应用
电池供电设备替代高压LDOHVAC与楼宇控制工业传感器和过程控制
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