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RT9237 - MULTI-PHASE DC/DC CONTROLLER

General Description

The RT9237 is a multi-phase buck DC/DC controller integrated with all control functions for high performance processor VRM.

The RT9237 drives 2, 3 or 4 buck switching stages operating in interleaved phase set automatically.

Key Features

  • z Multi-Phase Power Conversion with Automatic Phase Selection z VRM 9.0 DAC Output with Active Droop Compensation for Fast Load Transient z Precise Channel Current Sharing with Differential Sense Input z Hiccup Mode Over Current Protection z Programmable Under Voltage Lockout and Soft Start z High Ripple Frequency, (Channel Frequency 200kHz) Times Channel Number z RoHS Compliant and 100% Lead (Pb)-Free.

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Datasheet Details

Part number RT9237
Manufacturer Richtek
File Size 313.43 KB
Description MULTI-PHASE DC/DC CONTROLLER
Datasheet download datasheet RT9237 Datasheet

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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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RT9237 Multi-Phase DC/DC Controller for CPU Core Power Supply General Description The RT9237 is a multi-phase buck DC/DC controller integrated with all control functions for high performance processor VRM. The RT9237 drives 2, 3 or 4 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. RT9237 regulates both easily set voltage and current loops. Precise current sharing for power stage is achieved by differential input current sense and processing circuit.