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RT9241B - Two-Phase DC/DC Controller

This page provides the datasheet information for the RT9241B, a member of the RT9241A Two-Phase DC/DC Controller family.

Description

The RT9241A/B is a two-phase buck DC/DC controller integrated with all control functions for high performance processor VRM.

The RT9241A/B drives 2 buck switching stages operating in 180 degree phase shift.

Features

  • z Two-Phase Power Conversion 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 Times Channel Number) z 100kHz Version (RT9241B) for Lower Switching Loss z RoHS Compliant and 100% Lead (Pb)-Free.

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Datasheet preview – RT9241B

Datasheet Details

Part number RT9241B
Manufacturer RichTek Technology
File Size 296.96 KB
Description Two-Phase DC/DC Controller
Datasheet download datasheet RT9241B Datasheet
Additional preview pages of the RT9241B datasheet.

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Full PDF Text Transcription

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RT9241A/B Two-Phase DC/DC Controller for CPU Core Power Supply General Description The RT9241A/B is a two-phase buck DC/DC controller integrated with all control functions for high performance processor VRM. The RT9241A/B drives 2 buck switching stages operating in 180 degree phase shift. The twophase 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. RT9241A/B regulates both easily set voltage and current loops. Precise current sharing for power stage is achieved by differential input current sense and processing circuit.
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