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The RT2862A is a high efficiency, current-mode synchronous step-down DC/DC converter that can deliver up to 3A output current over a wide input voltage range from 4.5V to 36V. The device integrates 105m&Omega; high-side and 80m&Omega; low-side MOSFETs to achieve high conversion efficiency. The current-mode control architecture supports fast transient response and simple external compensation. <p align="justify">A cycle-by-cycle current limit function provides protection against shorted output and an internal soft-start eliminates input current surge during start-up. The RT2862A provides complete protection functions such as input under-voltage lockout, output under-voltage protection, over-current protection and thermal shutdown. </p><p align="justify">The RT2862A is available in the thermal enhanced SOP-8 (Exposed Pad) package.</p>
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  • 4.5V 至36V输入电压范围
  • 3A 输出电流
  • 内建 N-MOSFET 开关组件
  • 电流模式控制
  • 操作频率 : 300kHz至1MHz
  • 可调输出电压范围 0.8V至30V
  • 效率高达 95%
  • 可采用低ESR的陶瓷电容做为输出电容
  • 逐周期的过电流保护
  • 输入欠电压锁定机制
  • 输出欠电压保护
  • 热关断保护
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分布式电源系统的负载点调节 数字机顶盒 车用电子 汽车音响、导航和信息系统 企业数据通信平台负载点(POL) 工业级通用负载点
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