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Maxim产品 - MAX17545介绍

MAX17545 - 4.5V42V, 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4.5V42V, 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 - 4.5V42V, 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 Cost
  • No Schottky—Synchronous Operation
  • Internal Compensation for Any Output Voltage
  • Built-In Soft-Start
  • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
  • Wide 4.5V to 42V Input
  • Adjustable 0.9V to 0.9 x VIN Output
  • 100kHz to 2.2MHz Adjustable Switching Frequencywith External Synchronization
  • Reduces Power Dissipation
  • Peak Efficiency > 90%
  • PFM/DCM Enables Enhanced Light-load Efficiency
  • 2.8µA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
  • Peak Current-Limit Protection
  • Built-in Output Voltage Monitoring with Active-Low RESET
  • Programmable EN/UVLO Threshold
  • Monotonic Startup into Prebiased Load
  • Overtemperature Protection
  • -40°C to +125°C Operation
    • 热门应用
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