ACE714C

Max. 3MHz, Variable Frequency Step-up DC/DC Converter

VER 1.2

7

4.PCB Layout

Layout is critical to achieve clean and stable operation. The switching power stage requires particular

attention. Follow these guidelines for good PC board layout:

1) Place decoupling capacitors as close to the IC as possible.

2) Connect input and output capacitors to the same power ground node with a star ground configuration

then to IC ground.

3) Keep the high-current paths as short and wide as possible.

4) If possible, connect IN, SW, and GND separately to a large copper area to help cool the IC to further

improve efficiency and long-term reliability.

5) Ensure all feedback connections are short and direct. Place the feedback resistors as close to the IC

as possible.

6)

Route high-speed switching nodes away from sensitive analog areas

Figure 4. Recommended Component Placement