MAX17545 - 4.5V–42V, 1.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter With Internal Compensation
MAX17545是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX17545是4.5V–42V, 1.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter With Internal Compensation，本站介绍了MAX17545的封装应用图解、特点和优点、功能等，并给出了与MAX17545相关的Maxim元器件型号供参考。
MAX17545 - 4.5V–42V, 1.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter With Internal Compensation - DC-DC开关调节器 - Wide Input Voltage, 1.7A Internal FET Synchronous Buck Converter Ideal for Industrial Applications - 美信半导体
产品概述
The MAX17545 high-efficiency, high-voltage, synchronousstep-down DC-DC converter with integrated MOSFETsoperates over 4.5V to 42V input. The converter can deliverup to 1.7A and generates output voltages from 0.9V up to0.9 x VIN. The feedback (FB) voltage is accurate to within±1.1% over -40°C to +125°C.
The MAX17545 uses peak-current-mode control. Thedevice can be operated in pulse-width modulation (PWM),pulse-frequency modulation (PFM), or discontinuousconduction mode (DCM) control schemes.
The device is available in a 20-pin (4mm x 4mm) TQFNpackage. Simulation models 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—Synchronous OperationInternal Compensation for Any Output VoltageBuilt-In Soft-StartAll-Ceramic Capacitors, Compact LayoutReduces Number of DC-DC Regulators to StockWide 4.5V to 42V InputAdjustable 0.9V to 0.9 x VIN Output100kHz to 2.2MHz Adjustable Switching Frequencywith External SynchronizationReduces Power DissipationPeak Efficiency > 90%PFM/DCM Enables Enhanced Light-load Efficiency2.8µA Shutdown CurrentOperates Reliably in Adverse Industrial EnvironmentsPeak Current-Limit ProtectionBuilt-in Output Voltage Monitoring with Active-Low RESETProgrammable EN/UVLO ThresholdMonotonic Startup into Prebiased LoadOvertemperature Protection-40°C to +125°C Operation热门应用
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