Arthur Wright launched AX2002A/3A series DC buck converter

Arthur Wright (AXELite) technology before the launch of AX2002A/2003A/AX2201A series PWM output DC buck converter (AX2201A P-MOS, select the external elastic) current of the series buck converter using feedback resistor to control LED, the feedback voltage is 0.25V, power can significantly reduce the feedback resistance. The input voltage range can be from 3.6 volts to a maximum of 24 volts, the output can be connected up to a maximum of 7 Power-LED, very suitable for LCD TV / screen, flashlight, E27, MR16 cup lamp device.

The AX2002A/2003A/AX2201A application provides high conversion efficiency and stable working voltage, the system has complete protection function including soft activation (SS) (SCP), short circuit protection, over temperature protection and overcurrent protection (OCP) function, the switching frequency is fixed at 500Khz, and the collocation of small capacity inductance ceramic capacitor and low inductance the amount will be able to achieve non flash, stable power supply mode without light decay.

SOP-8L lead-free package uses standard AX2002A/2003A/AX2201A with few external components can be greatly reduced the size of circuit board with heat radiating function can be heat to the printed circuit board, greatly reduce the surface temperature of components to meet customer needs, and verified by lighting customers for the present Power LED lighting cost-effective drive scheme.