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Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN2356AMPX 6 A Synchronous Buck Regulator September 2015 FAN2356AMPX 6 A Synchronous Buck Regulator Features Description The FAN2356A is a highly efficient synchronous buck V Range: 4.5 V to 24 V IN regulator. The regulator is capable of operating with an High Efficiency: Over to 96% Peak input range from 4.5 V to 24 V and supporting up to 6 A continuous load currents. Continuous Output Current: 6 A The FAN2356 utilizes Fairchilds constant on-time PFM Mode for Light-Load Efficiency control architecture to provide excellent transient Excellent Line and Load Transient Response response and to maintain a relatively constant switching frequency. This device utilizes Pulse Frequency Precision Reference: 1% Over Temperature Modulation (PFM) mode to maximize light-load Output Voltage Range: 0.6 to 5.5 V efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode Programmable Frequency: 200 kHz to 1.5 MHz at light loads, while clamping the minimum frequency Programmable Soft-Start above the audible range with ultrasonic mode. Low Shutdown Current Switching frequency and over-current protection can be programmed to provide a flexible solution for Adjustable Sourcing Current Limit various applications. Output over-voltage, under- Internal Boot Diode voltage, over-current, and thermal shutdown protections help prevent damage to the device during fault Thermal Shutdown conditions. After thermal shutdown is activated, a Halogen and Lead Free, RoHS Compliant hysteresis feature restarts the device when normal operating temperature is reached. Applications Mainstream Notebooks Servers and Desktop Computers Game Consoles Telecommunications Storage Base Stations Ordering Information Operating Output Part Number Configuration Package Temperature Range Current (A) 34-Lead, PQFN, FAN2356AMPX PFM with Ultrasonic Mode -40 to 125C 6 5.5 mm x 5.0 mm 2015 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN2356A Rev. 1.0