| 摘要 |
An apparatus, system, and method to offer either independent output adjustment or tracking output voltages in a post regulated converter is provided. A new resistor divider and reference structure is introduced, which offers simplicity and low parts count in achieving the two different output voltage adjustment functions. In one embodiment, the voltage regulator includes a plurality of output voltage pins, a plurality of independent trim pins, a tracking trim adjust pin, a plurality of voltage error pins, a reference voltage supply; and a plurality of operational amplifiers. The plurality of output voltage pins are coupled to a first input and an output of the operational amplifiers. The reference voltage supply is coupled a second input of each of the operational amplifiers. The tracking trim adjust pin is coupled to the first input of each of the operational amplifiers. The independent trim pins are coupled to the second input of the operational amplifiers and the voltage error pins are coupled to the output of the operational amplifiers.
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