PAM2321 Datasheet, PDF (9/11 Pages) Power Analog Micoelectronics – 3MHz,Fast Transient 2A Step-Down Converter

PAM2321
3MHz,Fast Transient 2A Step-Down Converter
PCB Layout Check List
When laying out the printed circuit board, the following checklist should be used to ensure proper operation of
the PAM2321. Check the following in your layout:
1. The input capacitor should be close to IC as close as possible.
2. Must put a small decoupling capacitor between Vin Pin and AGND Pin.
3. Minimize the switching loop area to avoid excessive switching noise.
4. AGND and PGND should connect at input capacitor GND.
5. For the good thermal dissipation, PAM2321 has a heat dissipate pad in the bottom side, it should be
soldered to PCB surface. For the copper area can't be large in the component side, so we can use multiple vias
connect to other side of the PCB.
Power Analog Microelectronics,Inc
www.poweranalog.com
9
01/2013 Rev1.2