GENERAL DESCRIPTION
☆Green Operation Compatible A highly efficient and stable current can be supplied up to 1.0A by reducing ON resistance of the built-in transistor. Current limit value can be chosen either 1.2A (MIN.) when the LIM pin is high level, or 0.6A (MIN.) when the LIM pin is low level for using the power supply which current limit value differs such as USB or AC adapter. As for preventing unwanted switching noise, the XC9223/XC9224 series can be synchronized with an external clock signal within the range of ± 25% toward an internal clock signal via the MODE/SYNC pin. For protection against heat damage of the ICs, the XC9223/XC9224 series build in three protection functions: integral latch protection, thermal shutdown, and short-circuit protection. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel driver transistor is forced OFF when input voltage becomes 1.8V or lower. The XC9223B/XC9224B series’ detector function monitors the discretional voltage by external resistors.