FEATURES
Single-Supply Operation with 4A Output Current Wide Input Range with Dual Supply: 3.0V to 24V Wide Output Voltage Range: 0.8V to 80% VIN Over 94% Peak Efficiency 1% Reference Accuracy Over Temperature Fully Synchronous Operation with Integrated Schottky Diode on Low-Side MOSFET Boosts Efficiency DESCRIPTION
FAN21SV04 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, thereby reducing cost. Onboard internal 5V regulator enables single-supply operation for input voltages >6.5V. In slave mode, FAN21SV04 may be set up to be free-running in the absence of a master clock signal. External compensation, programmable switching frequency, and current-limit features allow for design optimization and flexibility. High-frequency operation allows for all-ceramic solutions. Fairchild’s advanced BiCMOS power process, combined with low-RDS(ON) internal MOSFETs and a thermally efficient MLP package, provide the ability to dissipate high power in a small package.
Fairchild Semiconductor
