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Figure 13. Switching supply built up
Figure 14. Orientation of U1.
Mount with the markings "AANY" upside down as shown.
Install U1 part number MAX1836EUT33 (marked as AANY), which is a 3.3v switching regulator.
Hint: solder one corner pin,
double
check IC orientation,
triple
check the orientation,
Make sure the IC is installed with the proper
then solder the rest of the pins.
orientation!
It is very difficult to remove this again without ruining the IC! Refer to the diagrams
above. Make sure the marking "AANY" (shown on the IC) is mounted in the orientation shown above.
U1s markings are both small and faint.
Install C1, C3, C5, C7, C9 and C11, 0.1uf capacitors.
Install L1, L3, and L4, 47 uH inductors.
Norcal NC2030 v5
12-18-05
Page 24 of 128
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