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TPS51120,pdf(Dual Current Mode

  • 资源大小:824
  • 上传时间:2021-09-14
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  • 标      签: Controller

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The TPS51120 is a highly sophisTIcated dual current mode synchronous step-down controller. It is a full featured controller designed to run directly off a three- or four-cell Li-ion battery and provide high-power and 5-V and/or 3.3-V standby regulaTIon for all the downstream circuitry in a notebook computer system. High current, 100-mA, 5-V or 3.3-V on-board linear regulators have glitch-free switch over funcTIon to SMPS and can be kept alive independently during standby state. The pseudo-constant frequency adapTIve on-time control scheme supports full range of current mode operation including simplified loop compensation, ceramic output capacitors as well as seamless transition to reduced frequency operation at light-load condition.
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