• 3V to 7V Input Voltage Range
• Up to 6A Output Current
• ±1% Reference Voltage over -40°C to +125°C Junction Temperature Range
• Internal 22.1mΩ Power Switch and 8.1mΩ  Synchronous Rectifier
• Instant-PWM™ Provides Fast Transient Response
• 660kHz,1100kHz, and 2200 kHz Operating Frequency
• Selectable PFM/FCCM Operation
• Programmable Valley Current Limit
• Cycle-by-Cycle Valley and Peak Current Limit (OCP) and Reverse Current Limit if FCCM is Selected 
• Automatic Recovery for Output Overvoltage (OVP), Output Undervoltage (UVP), and Overtemperature (OTP) 
• Hiccup Mode after 32 Consecutive Cycles of Valley Current-Limit Protection
• Pre-Biased Startup
• Power-Good Indicator
• RoHS-Compliant and Halogen-Free
• Compact Package: QFN2mmx3mm-14
• AEC-Q100 Qualified for Automotive Applications

The SY2A26066 is a high-efficiency synchronous step-down DC/DC regulator featuring internal power and synchronous rectifier switches capable of delivering 6A of continuous output current over an input voltage range from 3V to 7V.

Silergy’s proprietary Instant-PWM™ fast-response, constant-on-time (COT) control method supports high input/output voltage ratios (low duty cycles) and responds to load transients within approximately 100ns, while maintaining a near-constant operating frequency over line, load, and output voltage ranges. This control method provides stable operation without complex compensation, even with low-ESR ceramic capacitors.

Internal 22.1mΩ power and 8.1mΩ 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 undervoltage/overvoltage protection, and thermal shutdown provide safe operation in all operating conditions. 

The SY2A26066 is available in a compact QFN2mmx3mm-14 package.