AT2001Z Wide Input sensorless CC/CV 1A Buck Converter
General Description
AT2001 is a wide input voltage, high efficiency stepdown DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode.
AT2001 provides up to 1.3A output current at 135kHz switching frequency without additional transistor.
Internal sensorless CC control eliminates the expensive, high accuracy current sense resistor, and making it
ideal for battery charging applications and adaptors with accurate current limit.
AT2001 achieves higher efficiency than traditional constant current switching regulators by eliminating the external current sense resister associated power loss.
Regarding protected function, thermal shutdown is to prevent over temperature operating from damage; cycle by cycle current limit is against over current operating of the switch; and over voltage protection (OVP) that can avoid high Vout voltage to damage circuit and capacitor.
The devices is available in SOT23-6L package and require very few external devices for operation.
AT2001Z Wide Input sensorless CC/CV 1A Buck Converter