at1738 Aimtron Technology, at1738 Datasheet - Page 19

• Manufacturer Part Number: at1738
• Description: Lcd Panel Step-up Converter With Analog Multi-function Outputs
• Manufacturer: Aimtron Technology

PC Board Layout
1. The most critical aspect of the layout is the placements of the input bypass
2. Power loops on the input and output of the converters should be connected with the
3. The feedback resistors should connect to FB pins as close as possible. And each
4. Connecting all the ground-side of components at the backside ground-plane may
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8/01/2008 REV: 0.8
capacitors of pin IN, INL, VDD and VPSRC. They must be placed as close as
possible to the AT1738 to reduce the input ripple voltage and noise coupling.
shortest and widest traces as possible. The long and narrow trace increases the ESR
and ESL, and that will induce more effective noise at high frequency easily.
route connected to output should be away from the switching noise source, such as
charge-pump power loops.
effectively reduce the occurrence of unnecessary loop.
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Component side
Top-layer
19
LCD Panel Step-up Converter with
Preliminary Product Information
Analog Multi-Function Outputs
Email:
WWW:
[e-mail]
http://www.aimtron.com.tw
AT1738