This document is about CS51313, which is a synchronous dual NFET buck regulator controller. It can 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 also incorporates many other features to ensure the proper operation and protection of the CPU and Power system.
The CS51313 is a synchronous dual NFET 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 overcurrent hiccup mode protection, overvoltage protection, Vcc monitor, soft start, and adaptive voltage positioning.
| Vcc IC Power Input | 16V -0.3V |
|---|---|
| VREF Bandgap Reference Voltage | 1.23V |
| Transient Loop Response | 200ns |
| Gate Rise and Fall Times | 40ns |
| Adaptive FET Non-overlap Time | 65ns |
| Vcc Monitor Start Threshold | 7.9V |
| Vcc Supply Current (No Load) | 12 mA |
The CS51313 will operate over an 8.4V to 14V range.
It is available in a 16 lead narrow body surface mount package.
Yes, it includes overcurrent hiccup mode protection.
It uses the V2 control method to achieve the fastest possible transient response.