Datasheet SiC951 (Vishay)

SiC951
www.vishay.com Vishay Siliconix
4.5 V to 20 V Input, 25 A microBRICK® DC/DC Regulator Module With PMBus Interface FEATURES
• Versatile - Single supply operation from 4.5 V to 20 V input voltage - Output current: 25 A continuous with 30 A peak - Adjustable output voltage from 0.3 V to 5.5 V - Built in 5 V regulator for internal circuits and driver supply - 1 % output voltage accuracy over temperature • Highly efficient - Close to 97 % peak efficiency • Highly configurable Top view Bottom view - PMBus 1.3 compliant with 1 MHz bus speed
LINKS TO ADDITIONAL RESOURCES
- Internal NVM - VOUT adjustability and reading resolution of 2 mV - Supports over 50 PMBus commands
Design Tool Evaluation Design Tools Boards
- Ability to support sequential, tracking and simultaneous operation
DESCRIPTION
- Supports in phase or 180° out of phase synchronization The SiC951 is a PMBus 1.3 compliant non-isolated - Output voltage source and sink capability DC/DC buck regulator module with integrated MOSFETs • Robust and reliable and inductor in a 10.6 mm x 6.5 mm x 3 mm thermally efficient package. It is capable of supplying 25 A - VIN, VOUT and temperature reporting over PMBus continuously with 30 A peak. Its output voltage is digitally - Over current protection in pulse-by-pulse mode adjustable from 0.3 V to 5.5 V from a 4.5 V to 20 V input with - Output over voltage protection switching frequencies up to 1.5 MHz. The SiC951 can - Output under voltage protection accommodate a variety of applications, including - Over temperature protection with hysteresis computing, consumer electronics, telecom, and industrial. - Dedicated enable pin for easy power sequencing SiC951 architecture delivers ultrafast transient response with minimum output capacitance and tight regulation over - Power good open drain output a broad load range. The device has integrated internal - Remote sense amplifier with true differential voltage compensation and is stable with any type of output sensing capacitor. The device incorporates a power saving scheme - Ultrafast transient response that significantly increases light load efficiency. - Optional power saving mode The SiC951 allows power block configuration programs to be stored in non volatile memory (NVM). Operation
APPLICATIONS
parameters such as VOUT, IOUT, over temperature etc. can all • Servers be locally stored and used to determine fault behavior. • Networking, telecom, storage applications Operation is firmware based and is field upgradable. • Ultrabook, notebook, desktop The SiC951 is available in lead (Pb)-free power enhanced • Distributed point of load power architectures MLP59-A6C package. • Storage applications A full featured GUI and interface board is available to program and facilitate development of SiC951 based • DDR memory systems. S23-0736-Rev. C, 12-Sep-2023
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Document Number: 71554 For technical questions, contact: powerictechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000