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RT9245B

Richtek Technology
Part Number RT9245B
Manufacturer Richtek Technology
Description Multi-Phase PWM Controller
Published Dec 2, 2007
Detailed Description www.DataSheet4U.com RT9245B Multi-Phase PWM Controller for K8 CPU Core Power Supply General Description RT9245B is a mu...
Datasheet PDF File RT9245B PDF File

RT9245B
RT9245B

Overview
www.
DataSheet4U.
com RT9245B Multi-Phase PWM Controller for K8 CPU Core Power Supply General Description RT9245B is a multi-phase buck DC/DC controller integrated with all control functions for AMD K8 CPU.
The RT9245B could be operated with 2, 3 or 4 buck switching stages operating in interleaved phase set automatically.
The multiphase architecture provides high output current while maintaining low power dissipation on power devices and low stress on input and output capacitors.
The high equivalent operating frequency also reduces the component dimension and the output voltage ripple in load transient.
RT9245B implements both voltage and current loops to achieve good regulation, response and power stage thermal balance.
RT9245B applies the DCR sensing technology newly.
The RT9245B extracts the ESR of output inductor as sense component to deliver a precise load line regulation and good thermal balance for next generation processor application.
Current sense setting, droop tuning, VCORE ...


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