FAN2315AMPX

FAN2315AMPX —15 A Synchronous Buck Regulator September 2015 FAN2315AMPX 15 A Synchronous Buck Regulator Features  VIN Range: 4.5 V to 18 V  High Efficiency: Over 96% Peak  Continuous Output Current: 15 A  PFM Mode for Light-Load Efficiency  Excellent Line and Load Transient Response  Precision Reference: ±1% Over-Temperature  Output Voltage Range: 0.6 to 5.5 V  Programmable Frequency: 200 kHz to 1 MHz  Programmable Soft-Start  Low Shutdown Current  Adjustable Sourcing Current Limit  Internal Boot Diode  Thermal Shutdown  Halogen and Lead Free, RoHS Compliant Applications  Servers and Desktop Computers  NVDC Notebooks, Netbooks  Game Consoles  Telecommunications  Storage  Base Stations Description The FAN2315A is a highly efficient synchronous buck regulator. The regulator is capable of operating with an input range from 4.5 V to 18 V and supporting up to 15 A load currents. The FAN2315A utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency. The device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode at light loads. Switching frequency and over-current protection can be programmed to provide a flexible solution for various applications. Output over-voltage, undervoltage, over-current, and thermal shutdown protections help prev...