The ON Semiconductor FAN251040 is a highly efficient synchronous buck regulator with digital interface, capable of operating with an input range from 4.5 V to 18 V and supporting up to 40 A load currents. The FAN2510xx utilizes a fixed−frequency voltage−mode control architecture to provide a synchronized constant switching frequency while ensuring fast transient response. Switching frequency and over−current protection can be programmed to provide a flexible solution for various applications. Output over−voltage, under−voltage, over−current, and thermal shutdown protections help prevent damage to the device during fault conditions.

PMBUS 1.3.1 Compatible
Telemetry reporting, custom configuration, fault recording/reading with NVM
VIN Range: 4.5 V to 18 V
Accurate Voltage, Current and Thermal Telemetry Reporting
High Efficiency: Over 96% Peak
Continuous Output Current: 40 A
Internal Linear Bias Regulator
Precision Reference: ±0.7% Over Temperature
Output Voltage Range: 0.5 V to 5.5 V
Adjustable Frequency: 200 kHz to 1.4 MHz
Programmable Soft−Start
Low Shutdown Current
Internal Boot Diode
Thermal Shutdown
Pb−Free, Halogen Free/BFR Free, and is RoHS Compliant