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XC9223/XC9224 Series
1A Driver Transistor Built-In Step-Down DC/DC Converters
ETR0509_017
■GENERAL DESCRIPTION
☆Green Operation Compatible
The XC9223/XC9224 series are synchronous step-down DC/DC converters with a 0.21Ω (TYP.) P-channel driver transistor and
a synchronous 0.23Ω (TYP.) N-channel switching transistor built-in. A highly efficient and stable current can be supplied up to 1.0A
by reducing ON resistance of the built-in transistor. With a high switching frequency of 1.0MHz or 2.0MHz, a small inductor is
selectable; therefore, the XC9223/XC9224 series are ideally suited to applications with height limitation such as HDD or space-
saving applications.
Current limit value can be chosen either 1.2A (MIN.) when the LIM pin is high level, or 0.6A (MIN.
XC9223 Datasheet
