Silergy SA23002A
The SA23002A high-efficiency synchronous Buck converter can deliver 2A output current over an input voltage range from 2.8V to 5.5V. It uses built-in power MOSFETs to supply a resistor-configurable output voltage between 0.6V and VIN. The fixed 2.35MHz switching frequency allows for small external inductor and capacitor values.GENERAL DESCRIPTION
The SA23002A is available in a DFN2mm×2mm-8 package. SA23002A High-Efficiency, 5.5V, 2A, Single Synchronous Buck ConverterFEATURES
● 2.8V to 5.5V Input Voltage Range● Up to 2A Output Current
● External Adjustable Voltage with ±1.5% Reference Accuracy
● 1μA Shutdown Current (Typical)
● Fixed 2.35MHz Switching Frequency Minimizes Required External Components
● Selectable PWM and PFM Operating Modes
● 100% Duty-Cycle Capable
● Cycle-by-Cycle Current-Limit Protection
● Hiccup-Mode Short-Circuit Protection
● Thermal Shutdown
● Package: DFN2mm×2mm-8
● AEC-Q100 Qualified for Automotive
APPLICATIONS
APPLICATIONS
● Automotive Infotainment and Cluster● Advanced Driver Assistance System (ADAS)
● Automotive Display Typical Application VIN:2.8V to 5.5V 8 VIN 7 VIN Cin 10μF 5 EN 6 MODE SW 2 FB 4 PGND 1 AGND 3 L 1μH Rtop 100k Rbot 49.9k VOUT:1.8V Cff 47pF Cout 20μF Figure 1. Schematic Diagram Efficiency (%) Efficiency vs Output Current (VOU T= 1.8 V,L= 1μH(DFE25 20 12 PD-1R0 M)) 95 90 85 80 75 70 0.