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LM3481MM
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Category:Switching regulators
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Product Name:High efficiency low-side N-channel switching regulator controller
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Manufacturers:NSC
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Production Batch Number:11+
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Encapsulation:SOT23-3
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Stock Status:There is stock
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Stock Quantity:5000
- Minimum order quantity: 1
- Details:
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peculiarity
- 在MSOP - 10封装LM3481QMM是汽车是AEC - Q100一级资质(-40 ° C至+125 ° C的工作结温)级产品
- 10-pin MSOP package
- Internal push-pull drive 1A peak current capability
- Current limit and thermal shutdown
- Frequency compensation optimized with capacitance and resistance
- Internal soft start
- Current mode operation
- 可调滞后欠压闭锁
- 在轻负载脉冲跳跃
illustrate
该LM3481是一种多用途的低侧N - FET的开关稳压器的高性能控制器。 它是用于要求在拓扑a所LM3481可以在非常高的开关频率操作,从而降低整体解决方案尺寸低边FET,如升压,反激式,SEPIC等,适合 该LM3481开关频率可以调整到任何介于100 kHz和1 MHz的价值通过使用一个外部电阻器或同步至外部时钟。 电流模式控制提供除逐周期电流限制高带宽和瞬态响应。 电流限制可以通过编程用一个外部电阻。
已建成的LM3481,如热关断,短路保护和过电压保护保护功能。 A power-down shutdown mode provides 5μA total supply current and allows power sequencing. Internal soft-start limits the surge at start-up current.
Main specifications
- 宽电源电压范围为2.97V至48V
- 100 kHz至1 MHz的时钟频率可调和可同步
- ± 1.5% (overheated) internal reference
- 10μA关机电流(超温)
apply
- Distributed power systems
- Laptops, PDAs, digital cameras and other portable applications
- Offline power
- Stb
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