TS39103

1A Ultra Low Dropout Voltage Regulator

with Multi-Function

6/8

Version: D11

Application Information (Continue)

Copper area lay out information

Determine the power dissipation requirements for the design along with the maximum ambient temperature at

which the device will be operated. Refer to power dissipation with copper area curve, which shows safe operating

curves for three different ambient temperatures with 25

copper can be determined by knowing the maximum power dissipation required.

If we used a 5.0V output device and a 6V input at an output current of 350mA, then the power dissipation is as

follows:

If the maximum ambient temperature is 85

that the required area of copper is 80mm