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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.FAN23SV56AMPX 6 A Synchronous Buck Regulator September 2015 FAN23SV56AMPX 6 A Synchronous Buck Regulator Description Features The FAN23SV56A is a highly efficient synchronous buck regulator. The regulator is capable of operating V Range: 7 V to 24 V Using Internal Linear IN with an input range from 7 V to 24 V and supporting 6 A Regulator for Bias continuous load currents. The device can operate from V Range: 4.5 V to 5.5 V with V /P /P IN IN VIN VCC a 5 V rail (10%) if V , P , and P are connected IN VIN VCC Connected to Bypass Internal Regulator together to bypass the internal linear regulator. The FAN23SV56A utilizes Fairchilds constant on-time High Efficiency: Over 96% Peak control architecture to provide excellent transient Continuous Output Current: 6 A response and maintain a relatively constant switching frequency. Pulse Frequency Modulation (PFM) Mode Accurate Enable Facilitates V UVLO Functionality IN maximizes light-load efficiency by reducing switching PFM Mode for Light-Load Efficiency frequency when the inductor is operating in Discontinuous Conduction Mode (DCM) at light loads, Excellent Line and Load Transient Response while clamping the minimum frequency above the Precision Reference: 1% Over Temperature audible range with Ultrasonic Mode. Switching frequency and over-current protection can Output Voltage Range: 0.6 to 5.5 V be programmed to provide a flexible solution for Programmable Frequency: 200 kHz to 1.5 MHz various applications. Output over-voltage, under- voltage, over-current, and thermal shutdown protections Programmable Soft-Start help prevent damage to the device during fault Low Shutdown Current conditions. A hysteresis feature restarts the device when normal operating temperature is reached. Adjustable Sourcing Current Limit Internal Boot Diode Thermal Shutdown Halogen and Lead Free, RoHS Compliant 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, 5.5 mm FAN23SV56AMPX PFM with Ultrasonic Mode -40 to 125C 6 x 5.0 mm 2015 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN23SV56A Rev. 1.0