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The RT8807B is a two phases synchronous Buck PWM controller with integrated drivers which is optimized for high-performance graphic microprocessor and computer applications. The IC integrates a voltage mode PWM controller, two 5V MOSFET drivers with internal bootstrap diodes, as well as output current monitoring and protection functions into the WQFN-24L 4x4 package.
The inductor currents are sensed by lossless DCR current sensing technique for current balance and over current protection. The RT8807B also features a reference tracking mode operation in which the feedback voltage is regulated and tracks external input reference voltage. Other features include output current indication, adjustable operating frequency, adjustable soft-start, power good, external compensation, and enable/shutdown functions.
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  • Two-Phase Power Conversion with Single 12V Power Supply
  • Embedded 5V Upper Gate Driver and 12V Lower Gate Driver
  • Internal Regulated 5V Output
  • Precise Core Voltage Regulation
  • Selectable Internal / External Reference
  • Differential Inductor DCR Current Sense
  • External Programmable Voltage Droop Control
  • Enable Control for External Shutdown
  • Adjustable Operating Frequency
  • Adjustable Soft Start
  • Power Good and Output Current Indication
  • Adjustable Over Current Protection
  • Under Voltage Protection
  • Over Temperature Protection
  • RoHS Compliant and Halogen Free
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Middle to High End GPU Core Power<br />High End Desktop PC Memory Core Power<br />Low Voltage, High Current DC / DC Converter<br />Voltage Regulator Modules
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Keyword 1

Keyword 2

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