Datasheet Torex XD9268


36V Operation 600mA, Synchronous Step-Down DC/DC Converters


Datasheet XD9267, XD9268
PDF, 916 Kb, Language: en, File uploaded: Nov 7, 2019, Pages: 26
36V Operation 600mA Synchronous Step-Down DC/DC Converters
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Detailed Description

The XC9268 series are 36V operation synchronous step-down DC/DC converter ICs with a built-in P-channel MOS driver transistor and N-channel MOS switching transistor.

The XD9268 series has an operating voltage range of 3 V to 36 V, a switching frequency of 2.2 MHz, and the circuit scheme of synchronous rectification to be a highly efficient and stable power supply. An internal reference voltage source of 0.75 V is available, and the output voltage can be set to 1 V to 25 V by external resistors (RFB1, RFB2).

The soft-start time is internally set to 2.0ms (TYP.), but can be adjusted to set a longer time using an external resistor and capacitor. With the built-in UVLO function, the driver transistor is forced OFF when input voltage becomes 2.7V or lower.

The output state can be monitored using the power good function. Over-current protection and thermal shutdown are built in as protection function, and it can be used safely even in the case of short circuit. Internal protection circuits include over current protection and thermal shutdown circuits to enable safe use.

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Model Line

Series: XD9268 (2)

Manufacturer's Classification