16V Power -resistant Power Power Powerful DC/DC Controller
■ Characteristics
The XC9220 series is a general -purpose antihypertensive DC/DC controller IC. A stable power supply is achieved with high efficiency up to 3A output current 3A. In addition, low ESR capacitors such as ceramic capacitors can be used as load capacitors. The reference voltage source of 0.9V is built in, and the output voltage can be set arbitrarily by external resistance.
The switching frequency is 300kHz, 500kHz, and 1.0MHz, so external parts can be reduced. The operating mode is PWM control, and it operates with PFM control at the time of light load, achieving high efficiency in all areas from light load to heavy load.
The soft start time can be selected from the type (A and C series) set to 4MS inside, and the external setting type (B, D series). With a built -in UVLO function and the input voltage is 2.3V (TYP) or less, the external PCH driver TR is forcibly turned off.
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