SY26147
Description
The SY26147 is a high-efficiency synchronous step-down DC/DC regulator featuring internal power and synchronous rectifier switches capable of delivering 12A of continuous output current over a wide input voltage range, from as low as 4.5V up to 17V. The output voltage is adjustable from 0.6V to 5.5V.
Silergy’s proprietary Instant-PWM™ fast-response, constant-on-time (COT) PWM control method supports high input/output voltage ratios (low duty cycles) and responds to load transients within ~100ns while maintaining a near constant operating frequency over line, load and output voltage ranges. This control method provides stable operation without plex pensation and even with low ESR ceramic output capacitors.
Internal 9.8mΩ power and 4.5mΩ synchronous rectifier switches provide excellent efficiency over a wide range of applications, especially for low output voltages and low duty cycles. Cycle-by-cycle current limit, input undervoltage lock-out, internal soft-start, output...
