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BLOCK DIAGRAMS

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XC9111 A and B series

Note: The XC9110 series, Tr. Built-in type, uses the Lx pin and the XC9111 series, external Tr. Type, uses the EXT pin.

The duty ratio of the XC9111 series automatically varies between 56% (oscillation frequency 180kHz) and 75%

* The duty ratio depends on power supply. Please refer to the electrical characteristics on duty against output voltage

you use.

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XC9110 / 9111 C and D series

Note: The XC9110 series, Tr. Built-in type, uses the Lx pin and the XC9111 series, external Tr. Type, uses the EXT pin.

The XC9110 series' duty ratio is 75% and oscillation frequency (FOSC) is 100kHz. The duty ratio of the XC9111 series

automatically varies between 56% (oscillation frequency 180kHz) and 75% (oscillation frequency (FOSC) 100kHz). The

* The duty ratio depends on power supply. Please refer to the electrical characteristics on duty against output voltage

you use.