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RT9246A

Richtek Technology
Part Number RT9246A
Manufacturer Richtek Technology
Description Multi-Phase PWM Controller
Published Dec 2, 2007
Detailed Description www.DataSheet4U.com RT9246A Multi-Phase PWM Controller for CPU Core Power Supply General Description The RT9246A is a m...
Datasheet PDF File RT9246A PDF File

RT9246A
RT9246A

Overview
www.
DataSheet4U.
com RT9246A Multi-Phase PWM Controller for CPU Core Power Supply General Description The RT9246A is a multi-phase buck DC/DC controller integrated with all control functions for GHz CPU VRM.
The RT9246A controls 2 or 3 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.
RT9246A controls both voltage and current loops to achieve good regulation, response & power stage thermal balance.
Precise current loop using Inductor DCR as sense component builds precise load line for strict VRM DC & transient specification and also ensures thermal balance of different power stages.
The settings of current sense, droop tuning, VCORE initial offset and over current protection are ind...


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