MP2935 4-Phase PWM Controller for VR12.5 Applications END OF LIFE, REFER TO MP2965 FEATURES DESCRIPTION VR12.5 compliant MP2935 is a high-efficiency, 4-phase, Multi-Phase Operation at up to 2MHz per synchronous, buck-switching PWM controller Phase with an SVID interface for high-performance Tri-State PWM Outputs for Driving MPS Intel processors. The multi-phase PWM output TM Intelli-Phase Devices signals can be configured for up to 4-phase operation with interleaved switching. Power-Saving Modes Maximize Efficiency During Light Load and Deeper-Sleep MP2935 adopts three-logic-level PWM outputs Operation for enhanced noise immunity and flexible fault Active Current Balancing between Output management. Depending on the power states Phases set by SVID command, the multi-phase channel Independent Current Limit and Load Line can switch between multiphase and single- Setting Inputs for Additional Design phase operation. In addition, MP2935 supports Flexibility programmable load-line resistance. As a result, 8-bit Digitally Programmable 0V to 3.04V the output voltage is always optimally Output through Serial VID Interface positioned for a load transient. Overload and Short-Circuit Protection with The chip also provides accurate and reliable Latch-Off Delay short-circuit protection with adjustable current Output Current Monitor limit threshold and a delayed VR RDY output Fault Latch Output that is masked during on-the-fly output voltage Regulator Temperature Monitor changes to eliminate false triggering. MP2935 Available in a 6mmx6mm 40-lead QFN performance is specified over the junction package temperature range of -10C to 125C. The chip is available in 40-lead QFN package. APPLICATIONS Power supplies for next-generation Intel processors All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. MP2935 Rev. 1.02 www.MonolithicPower.com 1 4/10/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved. MP2935 4-PHASE PWM CONTROLLER FOR VR12.5 APPLICATIONS END OF LIFE, REFER TO MP2965 TYPICAL APPLICATION CIRCUIT MP2935 Rev. 1.02 www.MonolithicPower.com 2 4/10/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved. VIN 5V VDD VIN BST EN VOUT PWM MOSFE SW CS T Driver with I-Sense TEMP & T-Sense SYNC VIN AGND PGND PGND IntelliPhase VIN 5V CS1 5V VCC VDD VIN VTT BST CS2 GND (PAD) EN PWM CS3 VDD MOSFE SSWW CS T Driver with I-Sense TEMP CS4 & T-Sense SYNC CPU AGND PGND SCLK SCLK MP2935 SDIO SDIO IntelliPhase 4-Phase VR12.5 VIN ALERT 5V ALERT PWM Controller VCM ADDR VDD VIN BST IMON VCLAMP EN PWM MOSFE SW CS T AAMB Driver with VRRDY I-Sense VRRDY TEMP & T-Sense SYNC VRHOT VRHOT AGND PGND PWM1 FAULT FAULT PWM2 IntelliPhase EN EN PWM3 VIN 5V ICC PWM4 RICCMAX MAX VDD VIN BST EN PWM MOSFE SW CS T Driver with TEMP I-Sense & T-Sense SYNC AGND PGND IntelliPhase RADDR R IMON IREF COMP OTPG OTPD R BOOT FB VBOOT R TMAX IDROOP TMAX VIDFF R FS VOUT VOSEN FSET R AAM AAM GNDSEN PGND RSLOPE SLOPE CCM OCPSET TEMP