The FAN21SV04 is a highly efficient, small-footprint, programmable-frequency, 4A, integrated synchronous buck regulator.
The document describes the FAN21SV04 TinyBuck™, an integrated synchronous buck regulator designed for high-current applications in small footprints. It features dual supply operation (3.0V to 24V), a wide output voltage range, and over 94% peak efficiency. The device includes both synchronous MOSFETs and a controller/driver optimized for minimal external components.
| Output Current | 4A |
|---|---|
| Input Voltage Range | 3.0V to 24V |
| Output Voltage Range | 0.8V to 80% Vin |
| Peak Efficiency | >94% |
| Reference Accuracy | 1% |
| Switching Frequency Range | 200 to 600KHz |
| Package Type | 5x6mm, 25-Pin, 3-Pad MLP |
The device supports programmable frequency operation between 200KHz and 600KHz.
Yes, it features fully synchronous operation with integrated Schottky diode and provisions for synchronizing to an external clock.
The device includes under-voltage, over-voltage, thermal-shutdown, and programmable over-current protection.