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Maxim产品 - MAX17521介绍

MAX17521 - 60V, 1A, Dual-Output, High-Efficiency,Synchronous Step-Down DC-DC Converter

MAX17521是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX17521是60V, 1A, Dual-Output, High-Efficiency,Synchronous Step-Down DC-DC Converter，本站介绍了MAX17521的封装应用图解、特点和优点、功能等，并给出了与MAX17521相关的Maxim元器件型号供参考。

MAX17521 - 60V, 1A, Dual-Output, High-Efficiency,Synchronous Step-Down DC-DC Converter - DC-DC开关调节器 - Industry's First 60V, 1A Dual Step-Down DC-DC Converter with Integrated MOSFETs - 美信半导体

产品概述

The MAX17521 dual-output, high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 1A at each output. Each output isprogrammable from 0.9V to 92%VIN. The feedback voltage regulation accuracy over -40°C to +125°C is ±1.7%.

The MAX17521 uses peak-current-mode control. Each output can be operated in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes.

The MAX17521 is available in a 24-pin (4mm x 5mm) TQFN package. 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 SchottkySynchronous Operation
  • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
  • Wide 4.5V to 60V Input
  • Each Output Adjustable From 0.9V to 92%VIN
  • Pin-Selectable 560kHz or 300kHz SwitchingFrequency
  • Independent Input Voltage Pin for Each Output
  • Reduces Power Dissipation
  • Peak Efficiency > 90%
  • PFM Mode Enables Enhanced Light-Load Efficiency
  • 1μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
  • Hiccup Mode Overload Protection
  • Adjustable Soft-Start Pin for Each Output
  • Built-In Output Voltage Monitoring with Active-Low RESET for Each Output
  • Adjustable EN/UVLO Threshold for Each Output
  • Monotonic Startup Into Prebiased Load
  • Overtemperature Protection
  • -40°C to +125°C Operation
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