Bypass the input pin to ground
with a bypass capacitor.
The optimum placement of the
bypass capacitor is closest to the VIN of the device and GND of the
system. Care must be taken to minimize the loop area formed by the bypass
capacitor connection, the VIN pin, and the GND pin of the
system.
For operation at full-rated load,
use wide trace lengths to eliminate IR drop and heat dissipation.