Onsemi FAN2315

Description

The FAN2315 TinyBuck™ is a highly efficient integrated synchronous buck regulator. The regulator is capable of operating with an input range from 4.5 V to 15 V and supporting up to 15 A load currents.

The FAN2315 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, under-voltage, over-current, and thermal shutdown protections help prevent damage to the device during fault conditions. A hysteresis feature restarts the device when normal operating temperature is reached.

Features

• VIN Range: 4.5 V to 15 V
• High Efficiency: Over 96% Peak
• Continuous Output Current: 15 A
• PFM Mode for Light-Load Efficiency
• 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

Typical applications

• Storage
• Game Consoles
• Base Stations
• Server and Desktop Computers
• Telecommunications
• NVDC Notebooks,Netbooks

More information

• Datasheet
• IC product information