SA25901ABAT

·       2.8V~6V Input Voltage Range

·       Up to 1A Output Current Capability

·       Low R_DS(ON) for Internal Switches (Top/Bottom): 65mΩ/25mΩ

·       Constant Frequency Peak Current Mode Control

·       35µA Quiescent Current (Typ.)

·       2.5µA Shutdown Current (Typ.)

·       ±1% 0.6V Reference Over -40°C to +150°C

·       2.3MHz Switching Frequency

·       Internal Soft-Start Limits Inrush Current

·       Forced PWM or PFM Operation Selectable in Light Load

·       100% Duty Cycle Dropout Operation

·       Spread Spectrum Clocking

·       Power-Good Indicator

·       Hiccup Mode for Short-Circuit Protection

·       Compact SOT583 Package

·       Automotive AEC-Q100 Grade 1 Qualified

·       MSL Rating: MSL1

The SA25901A is a high-efficiency 2.3MHz synchronous step-down converter that operates over an input voltage range of 2.8V to 6V, and can deliver an output current of up to 1A. It integrates very low RDS(ON) main and synchronous MOSFETs to minimize conduction loss. The 2.3MHz constant switching frequency reduces the required external inductor and capacitor values.The SA25901A utilizes a constant frequency peak current mode control architecture to achieve stable operation across a wide range of conditions. It also provides cycle-by-cycle current limit protection, output short-circuit protection, and overtemperature protection. The SA25901 is available in a space-saving SOT583 package.