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Maxim产品 - MAX17551介绍

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 Cost
  • No SchottkySynchronous
  • Internal Compensation for Any Output Voltage
  • Built-In Soft-Start
  • All-ceramic capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
  • Wide 4V to 60V Input
  • Adjustable 0.8V to 0.9 x VIN Output
  • 100kHz to 2.2MHz Adjustable Switching Frequencywith External Synchronization
  • Reduces Power Dissipation
  • 22µA Quiescent Current
  • Peak Efficiency > 90%
  • PFM Enables Enhanced Light-Load Efficiency
  • 1.2µA Shutdown Current
  • Operates Reliable in Adverse Environments
  • Peak Current Limit Protection
  • Built-In Output Voltage Monitoring Active-Low RESET
  • Programmable EN/UVLO Threshold
  • Monotonic Startup in to Prebiased Load
  • Overtemperature Protection
  • -40°C to +125°C Operation
    • 热门应用
  • 电池供电设备
  • 替代高压LDO
  • HVAC与楼宇控制
  • 工业传感器和过程控制
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