Output of LM35 temperature sensor > 3.3 V?
The output voltage as a function of temperature is with respect to the GND pin of the sensor. This voltage cannot exceed 1.5V in normal operation.

The maximum output voltage spec of -1V to 6V is with respect to circuit ground. The GND pin of the sensor is lifted above circuit ground in certain applications, such as to convert the sensor output voltage to a voltage proportional to Fahrenheit temperature. Take a look at the system examples given in the data sheet. The example circuit shown below is an example from the linked data sheet.