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RT9247 - Multi-Phase PWM Controller

General Description

The RT9247 is a multi-phase buck DC/DC controller integrated with all control functions for GHz CPU VRM.

The RT9247 controls 2 or 3 buck switching stages operating in interleaved phase set automatically.

Key Features

  • z Multi-Phase Power Conversion with Automatic Phase Selection VRD10 DAC Output with Active Droop Compensation for Fast Load Transient Smooth VCORE Transition at VID Jump Power Stage Thermal Balance by RDS(ON) Current Sense Hiccup Mode Over-Current Protection Programmable Switching Frequency (50kHz to 400kHz per Phase), Under-Voltage Lockout and Soft-Start High Ripple Frequency Times Channel Number RoHS Compliant and 100% Lead (Pb)-Free z z z z z z z.

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Datasheet Details

Part number RT9247
Manufacturer Richtek Technology
File Size 364.29 KB
Description Multi-Phase PWM Controller
Datasheet download datasheet RT9247 Datasheet

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Other Datasheets by Richtek Technology

Part Number Description
RT9241A Two-Phase DC/DC Controller
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com Preliminary RT9247 Multi-Phase PWM Controller for CPU Core Power Supply General Description The RT9247 is a multi-phase buck DC/DC controller integrated with all control functions for GHz CPU VRM. The RT9247 controls 2 or 3 buck switching stages operating in interleaved phase set automatically. The multi-phase 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. RT9247 controls both voltage and current loops to achieve good regulation, response & power stage thermal balance.