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发布者:微桥 发布时间:2012/2/17 阅读:6786次    关键字: DC-DC
EML3170-1.5MHz 3A,Synchronous Step-Down Regulator


EML3170-1.5MHz 3A,Synchronous Step-Down RegulatorDataSheet

General Description
    EML3170 is a high efficiency current mode synchronous buck PWM DC-DC regulator. The internal generated 0.8V precision feedback reference voltage is designed for low output voltage. Low RDS (ON) synchronous switch dramatically reduces conduction loss. To extend battery life for portable application, 100% duty cycle is supported for low-dropout operation. Shutdown mode also helps saving the current consumption.

Features
  Input Voltage Range: 2.5 to 5.5V
  Adjustable Output Voltage From 0.8V to VIN
  Precision Feedback Reference Voltage: 0.8V (±2%)
  Output Current: 3A (Max.)
  Duty Cycle: 0~100%
  Internal Fixed PWM Frequency: 1.5MHz
  Low Quiescent Current: 100μA
  No Schottky Diode Required
  Built-in Soft Start
  Current Mode Operation
  Over Temperature Protection

Applications
  Cellular Telephone
  Wireless and DSL Modems
  Digital Still Cameras
  Portable Products
  MP3 Players

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