Cherry Semiconductor CS51311 Synchronous CPU Buck Controller Datasheet

The CS51311 is a synchronous dual NFET Buck Regulator Controller. It is designed to power the core logic of the latest high performance CPUs. It uses the V2TM control method to achieve the fastest possible transient response and best overall regulation. It incorporates many additional features required to ensure the proper operation and protection of the CPU and Power system. The CS51311 provides the industry’s most highly integrated solution, minimizing external component count, total system cost and BOM, and improving reliability.


Cherry Semiconductor CS51311 Synchronous CPU Buck Controller Datasheet - cover page
Brand
Cherry
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
19
File format
PDF
File size
232 KB
Published
12 July, 2012
Updated
30 September, 2023
MD5 checksum
1FFC194497F86D7D127DC2D7724B41B3

About this manual

The CS51311 is a synchronous dual N-FET Buck Regulator Controller designed to power the core logic of high performance CPUs. It utilizes the V2 control method to achieve fast transient response and best overall regulation, incorporating features such as over-current hiccup mode protection, Vcc monitor, soft start, and adaptive voltage positioning. The device is specifically designed to power Intel's Pentium II processor and operates over an 8.4V to 14V range.

What's inside

  • Absolute Maximum Ratings
  • Package Pin Description
  • Electrical Specifications
  • Theory of Operation
  • V2 Control Method
  • Block Diagram

Specifications

Input Voltage Range8.4V to 14V
Package Type14 lead narrow body surface mount
Transient Response200ns
Gate Rise and Fall Times40ns
Adaptive FET Non-overlap Time65ns
DAC Tolerance1.2%

Frequently asked questions

What processor is the CS51311 specifically designed for?

The CS51311 is specifically designed to power Intel's Pentium II processor.

What is the operating voltage range of the CS51311?

The device operates over an 8.4V to 14V range.

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