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XC9254R Datasheet(PDF) 10 Page - Torex Semiconductor |
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XC9254R Datasheet(HTML) 10 Page - Torex Semiconductor |
10 / 17 page 10/17 XC9254R Series SW_CE STATUS ON Stand-by OFF Operation SW_CE STATUS ON Operation OFF Stand-by CE VOLTAGE LEVEL OPERATIONAL STATES H Level Synchronous PWM/PFM Automatic Switching L Level Stand-by ■FUNCTION CHART <CE Pin Function> The operation of the XC9254R series will enter into the shut down mode when a low level signal is input to the CE pin. During the shutdown mode, the current consumption of the IC becomes 0μA (TYP.), with a state of high impedance at the Lx pin and VOUT pin. The IC starts its operation by inputting a high level signal to the CE pin. The input to the CE pin is a CMOS input and the sink current is 0μA (TYP.). ●Examples of how to use CE pin (A) (B) (A) (B) ■OPERATIONAL DESCRIPTION (Continued) <Soft Start> The XC9254R series provide 1.0ms (TYP). Soft start time is defined as the time interval to reach 90% of the output voltage from the time when the CE pin is turned on. 90% of setting voltage tSS CE CE |
Similar Part No. - XC9254R |
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Similar Description - XC9254R |
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