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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN2108 TinyBuck, 3-24 V Input, 8 A, High-Efficiency, Integrated Synchronous Buck Regulator August 2014 FAN2108 TinyBuck 3-24 V Input, 8 A, High- Efficiency, Integrated Synchronous Buck Regulator Features Description The FAN2108 TinyBuck is a highly efficient, small Wide Input Voltage Range: 3 V-24 V footprint, 8 A, synchronous buck regulator. Wide Output Voltage Range: 0.8 V to 80% V IN The FAN2108 contains both synchronous MOSFETs 8 A Output Current and a controller/driver with optimized interconnects in Programmable Frequency Operation: 200 KHz to one package, which enables designers to solve high- 600 KHz current requirements in a small area with minimal external components. Over 95% Peak Efficiency External compensation, programmable switching Integrated Schottky Diode on Low-side MOSFET frequency, and current limit features allow design Boosts Efficiency optimization and flexibility. Internal Bootstrap diode The summing current mode modulator uses lossless Power-Good Signal current sensing for current feedback and over-current Pre-Bias Startup protection. Voltage feedforward helps operation over a wide input voltage range. Accepts Ceramic Capacitors on Output Fairchilds advanced BiCMOS power process, combined External Compensation for Flexible Design with low-R internal MOSFETs and a thermally DS(ON) Input Under-Voltage Lockout efficient MLP package, provide the ability to dissipate Programmable Current Limit high power in a small package. Under-Voltage, Over-Voltage, and Thermal Output over-voltage, under-voltage, and thermal Shutdown Protections shutdown protections help protect the device from damage during fault conditions. FAN2108 prevents Internal Soft-Start pre-biased output discharge during startup in point-of- 5 x 6 mm, 25-Pin, 3-Pad MLP Package load applications. Applications Related Application Notes Servers AN-8022 TinyCalc Calculator Point-of-Load Regulation High-End Computing Systems Graphics Cards Battery-Powered Equipment Set-Top Boxes Ordering Information Operating Temperature Packing Part Number Range Package Method FAN2108MPX -10C to 85C Molded Leadless Package (MLP) 5 x 6 mm Tape and Reel FAN2108EMPX -40C to 85C 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN2108 Rev. 1.0.3