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The RT7250A/B is a high efficiency, monolithic synchronous step-down DC-DC converter that can operate at 340kHz/800kHz, while delivering up to 2A output current from a 4V to 17V input supply. The RT7250A/B's current mode architecture allows the transient response to be optimized. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault conditions also include output under voltage protection, output over voltage protection and thermal shutdown. The low current (<5μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT7250A/B is available in a SOP-8 (Exposed Pad) package.
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  • 输入电压范围：4V~17V
  • 负载能力：2A
  • 内部集成N-MOSFET功率开关
  • 电流模式控制架构
  • 固定工作频率：340kHz/800kHz
  • 输出电压可调范围：0.8V~12V
  • 效率高达95%
  • 内部补偿
  • 与低ESR陶瓷输出电容配合可稳定工作
  • 逐周期过流限制保护
  • 输入欠压锁定保护
  • 输出欠压保护
  • 输出过压保护
  • Power Good指示
  • 过热关机保护
  • 符合RoHS规范，不含卤素
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工商业低功率系统 计算机外设 液晶显示器和电视机 节能电器 高性能DSP、FPGA、ASIC的负载点调节器
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