XC9220/XC9221 Series
16V Input Voltage, Step-Down DC/DC Controller ICs.
ETR0511-012
˙GENERAL DESCRIPTION
The XC9220/XC9221 series is a group of multi-purpose step-down DC/DC controller ICs.
The ICs enable a high efficiency, stable power supply with an output current up to 3A to be configured using only a
transistor, a coil, a diode, and two capacitors connected externally.
Low ESR capacitors such as a ceramic capacitor can be used as an output capacitor.
The XC9220/XC9221 series has a 0.
9V (±1.
5%) reference voltage, and using externally connected resistors, the output voltage can be set freely.
With an internal switching frequency of 300kHz and 500kHz 1.
0MHz, small external components can ...