SIC402 Synchronous Buck Regulator Reference Board

The SiC402 is high frequency voltage-mode constant-on-time (CM-COT) synchronous buck regulators with integrated high-side and low-side power MOSFETs. The SiC402 is capable of 10 A. These regulators produce an adjustable output voltage which in standard setup can output 5 V down to 0.6 V and with the VOUT divider network 75 % of VIN down to 0.6 V to accommodate a variety of applications, including computing, consumer electronics, telecom, and industrial.The CM-COT architecture delivers ultra-fast transient response with minimum output capacitance and tight ripple regulation at very light load. The parts are stable with any capacitor type and no ESR network is required for loop stability. The regulator integrates a full protection feature set, it also has UVLO for the input rail and an internal soft-start.The SiC402 is available in lead (Pb)-free power enhanced 5 mm x 5 mm MLP55-32L package.

• Selectable frequency from 200 kHz to 1 MHz with an external resistor
• 95 % peak efficiency
• Stable with any capacitor; no external ESR network required
• Ultrafast transient response
• Power saving scheme for increased light load efficiency
• ± 1 % accuracy of V_OUT setting
• Cycle-by-cycle current limit
• Fully protected with OTP, SCP, UVP, OVP
• PGOOD Indicator
• -40 °C to +125 °C operating junction temperature
• Output voltage tracking
• 10 A (SiC402) continuous output current
• Adjustable output voltage down to 0.6 V
• SiC402A/B: 3 V to 28 V input range