LP3390 Datasheet, PDF (7/8 Pages) Lowpower Semiconductor inc – 1.2MHzFixed-Frequency PWM Operation

Preliminary Datasheet
LP3390
Layout Consideration
For best performance of the LP3390, the following
guidelines must be strictly followed.
- Input and Output capacitors should be placed close
to the IC and connected to ground plane to reduce
noise coupling.
- The GND and Exposed Pad should be connected to
a strong ground plane for heat sinking and noise
protection.
- Keep the main current traces as possible as short
and wide.
- LX node of DC-DC converter is with high frequency
voltage swing. It should be kept at a small area.
- Place the feedback components as close as
possible to the IC and keep away from the noisy
devices.
LP3390 Version 1.0 Datasheet
NOV.-2013 www.lowpowersemi.com
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