Chipown AP2961A
AP2961A 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 AP2961A achieves higher efficiency than traditional constant current switching regulators by eliminating its associated power loss on the additional current sensing resistor. AP2961A provides up to 3A output current at 125kHz switching frequency.GENERAL DESCRIPTION
AP2961A eliminates the expensive, high accuracy current sense resistor, making it ideal for battery charging applications and adaptors with accurate current limit. AP2961A provides OVP pin for output over voltage protection. AP2961A integrates adaptive gate drive to achieve excellent EMI performance passing EN55022 Class B EMC standard without adding additional EMI components while maintaining high conversion efficiency. Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit. AP2961A are available in a SOP8-PP package and require very few external devices for operation.APPLICATIONS
● Car Charger/ Adaptor● Rechargeable Portable Devices
● General-Purpose CC/CV Supply
FEATURES
● 42V Input Voltage Surge● 40V Steady State Operation
● Up to 3A Output Current
● Output Voltage up to 12V
● 125kHz Switching Frequency
● Up to 91% Efficiency
● Stable with Low-ESR Ceramic Capacitors to Allow Low- Profile Designs
● I...