FAN23SV10MMPX ON Semiconductor

FAN23SV10M 10 A Synchronous Buck Regulator September 2015 FAN23SV10M 10 A Synchronous Buck Regulator Description Features The FAN23SV10M is a highly efficient synchronous V Range: 7 V to 18 V Using Internal Linear IN buck regulator. The regulator is capable of operating Regulator for Bias with an input range from 7 V to 18 V and supporting up to 10 A load currents. The device can operate from a V Range: 4.5 V to 5.5 V with V /P /P IN IN VIN VCC Connected to Bypass Internal Regulator 5 V rail (10%) if V , P , and P are connected IN VIN VCC together to bypass the internal linear regulator. High Efficiency: Over 96% Peak This FAN23SV10M utilizes Fairchilds constant on-time Continuous Output Current: 10 A control architecture to provide excellent transient Internal Linear Bias Regulator response and to maintain a relatively constant switching frequency. The device utilizes Pulse Frequency Accurate Enable facilitates V UVLO Functionality IN Modulation (PFM) mode to maximize light-load PFM Mode for Light-Load Efficiency efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode Excellent Line and Load Transient Response at light loads. Precision Reference: 1% Over Temperature Switching frequency and over-current protection can Output Voltage Range: 0.6 to 5.5 V be programmed to provide a flexible solution for various applications. Output over-voltage, under- Programmable Frequency: 200 kHz to 1.5 MHz voltage, over-current, and thermal shutdown protections Programmable Soft-Start help prevent damage to the device during fault conditions. After thermal shutdown is activated, a Low Shutdown Current hysteresis feature restarts the device when normal Adjustable Sourcing Current Limit operating temperature is reached. Internal Boot Diode Thermal Shutdown Halogen and Lead Free, RoHS Compliant Applications Servers and Desktop Computers NVDC Notebooks, Netbooks Game Consoles Telecommunications Storage Ordering Information Operating Output Part Number Configuration Package Temperature Range Current (A) 34-Lead, PQFN, FAN23SV10MMPX PFM, No Ultrasonic Mode -40 to 125C 10 5.5 mm x 5.0 mm 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN23SV10M . Rev. 1.13 FAN23SV10M 10 A Synchronous Buck Regulator Typical Application Diagram V = 12V IN V = 12V IN R11 C10 10 C9 2.2F 0.1F CIN CIN R7 0.1F 3x10F 64.9k PVCC VIN PVIN VCC Ext C3 EN EN 0.1F R8 V = 1.2V OUT 10k BOOT FAN23SV10M I =0-10A R7, R8 used for Accurate EN L1 OUT 0.72H R7, R8 open for Ext EN SW PGOOD SOFT START ILIM R2 C4 COUT R5 1.58k 1.5k 0.1F R3 6x47F 10k C5 C7 FREQ 100pF 15nF FB R9 54.9k R4 AGND PGND 10k Figure 1. Typical Application with V =12 V IN V = 5V IN R11 C10 C9 10 2.2F 0.1F CIN CIN 0.1F 3x10F PVCC VIN PVIN VCC Ext C3 EN EN 0.1F V = 1.2V OUT BOOT FAN23SV10M I =0-10A OUT L1 0.72H SW PGOOD SOFT START ILIM R2 C4 COUT R5 1.58k 1.5k 0.1F 6x47F R3 10k C5 C7 FREQ 100pF 15nF FB R9 54.9k R4 AGND PGND 10k Figure 2. Typical Application with V =5 V IN 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN23SV10M Rev. 1.13 2