RT9245B Datasheet PDF (Multi-Phase PWM Controller) | Download Richtek Technology RT9245B

RT9245B - Multi-Phase PWM Controller

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.

Features

l l l l l l l l l Multi-Phase Power Conversion with Automatic Phase Selection 6-bit AMD K8 M2 DAC Output with Active Droop Compensation for Fast Load Transient Smooth VCORE Transition at VID Jump Power Stage Thermal Balance by DCR Current Sense Hiccup Mode Over-Current Protection Programmable Switching Frequency (50kHz to 400kHz per Phase), Under-Voltage Lockout and SoftStart High Ripple Frequency Times Channel Number 28-TSSOP Package RoHS Compliant and 100% Lead (Pb)-Free.

Datasheet Details

Part number	RT9245B
Manufacturer	Richtek Technology
File Size	414.39 KB
Description	Multi-Phase PWM Controller
Datasheet	RT9245B Datasheet
Additional preview pages of the RT9245B datasheet.

📁 Similar Datasheet

RT9241 - Two-Phase DC/DC Controller (Richtek)

RT9202 - Single Synchronous Buck PWM DC-DC Controller (Richtek)

RT9202B - Single Synchronous Buck PWM DC-DC Controller (Richtek)

RT9203 - Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller (Richtek)

RT9203A - Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller (Richtek)

RT9204 - Dual Regulators - Standard Buck PWM DC-DC and Linear Controller (Richtek)

RT9204A - Dual Regulators - Standard Buck PWM DC-DC and Linear Controller (Richtek)

RT9205 - Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller (Richiek)

RT9205A - Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller (Richiek)

RT9206 - Synchronous Buck (Richtek Technology Corporation)

Full PDF Text Transcription

Click to expand full text

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.

Published: Dec 2, 2007 |