FAN2108

FAN2108 — TinyBuck™, 3-24V Input, 8A, High-Efficiency, Integrated Synchronous Buck Regulator September 2008 www.datasheet4u.com FAN2108 — TinyBuck™ 3-24V Input, 8A, High-Efficiency, Integrated Synchronous Buck Regulator Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Wide Input Voltage Range: 3V-24V Wide Output Voltage Range: 0.8V to 80% VIN 8A Output Current Programmable Frequency Operation: 200KHz to 600KHz Over 95% Peak Efficiency Integrated Schottky Diode on Low-side MOSFET Boosts Efficiency Internal Bootstrap diode Power-Good Signal Pre-Bias Startup Accepts Ceramic Capacitors on Output External Compensation for Flexible Design Input Under-Voltage Lockout Programmable Current Limit Under-Voltage, Over-Voltage, and Thermal Shutdown Protections Internal Soft-Start 5x6mm, 25-Pin, 3-Pad MLP Package Description The FAN2108 TinyBuck™ is a highly efficient, small footprint, 8A, synchronous buck regulator. The FAN2108 contains both synchronous MOSFETs and a controller/driver with optimized interconnects in one package, which enables designers to solve highcurrent requirements in a small area with minimal external components. External compensation, programmable switching frequency, and current limit features allow design optimization and flexibility. The summing current mode modulator uses lossless current sensing for current feedback and over-current protection. Voltage feedforward helps operation over a wide input voltage range. Fairchild’s advanced BiCMOS power process...