The VCC pin is the output of the internal LDO used as a supply to the internal control circuits of the regulator. This output requires a 1-μF, 16-V, X7R or similar, 0603 or similar ceramic capacitor connected from VCC to AGND for proper operation. Generally avoid loading this output with any external circuitry. However, this output can be used to supply the pullup for the RESET (power-good) function (see Section 8.3.6). A pullup resistor with value of 100 kΩ is a good choice in this case. The nominal output voltage on VCC is 3.3 V. Do not short this output to ground or any other external voltage.