AT431 Overview
The AT431 is low-voltage three-terminal adjustable voltage reference with specified thermal stability over applicable mercial temperature ranges. Output voltage may be set to any value between Vref (1.24V) and 12V with two external resistors (see Figure 2). When used with an optocoupler, the AT431 is ideal voltage reference in isolated feedback circuits for 1.8V to 12 V switching-mode power supplies.
AT431 Applications
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