AiT Semiconductor A7431A
A7431A is a wide input voltage, high efficiency CC/CV step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. The A7431A achieves higher efficiency than traditional constant current switching regulators by eliminating its associated power loss on the additional current sensing resistor. A7431A provides up to 3A output current at 230kHz switching frequency.DESCRIPTION
A7431A eliminates the expensive, high accuracy current sense resistor, making it ideal for battery charging applications and adaptors with accurate current limit. Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit. A7431A are available in a PSOP8 package and require very few external devices for operation. The A7431A is available in PSOP8 package. ORDERING INFORMATION Package Type Part Number PSOP8 MP8 A7431AMP8R A7431AMP8VR V: Halogen free Package Note R: Tape & Reel SPQ: 4,000pcs/Reel AiT provides all RoHS products Suffix “ V “ means Halogen free PackageFEATURES
● 42V Input Voltage Surge● 36V Steady State Operation
● Up to 3A Output Current
● Output Voltage up to 12V
● 230kHz Switching Frequency
● Up to 91% Efficiency
● Stable with Low-ESR Ceramic Capacitors to Allow Low-Profile Designs
● 230kHz Switching Frequency Eases EMI Design
● Constant Current Control Without Additional Current Sensing Resistor Improves Efficiency and Lowers Cost.