IR3894 IRF [International Rectifier], IR3894 Datasheet - Page 41
IR3894
Manufacturer Part Number
IR3894
Description
12A HIGHLY INTERGRATED SUPLRBUCK
Manufacturer
IRF [International Rectifier]
Datasheet
1.IR3894.pdf
(43 pages)
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Part Number:
IR3894MTRPBF
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SOLDER RESIST
* Contact International Rectifier to receive an electronic PCB Library file in your preferred format
IR recommends that the larger Power or Land
When using SMD pads, the underlying copper
Area pads are Solder Mask Defined (SMD.)
This allows the underlying Copper traces to be as
large as possible, which helps in terms of current
carrying capability and device cooling capability.
traces should be at least 0.05mm larger (on each
edge) than the Solder Mask window, in order to
accommodate any layer to layer misalignment.
(i.e. 0.1mm in X & Y.)
41
AUGUST 08, 2012 | DATA SHEET | Rev 3.1
Single‐Input Voltage, Synchronous Buck Regulator
Figure 49: Solder resist
- 41 -`
12A Highly Integrated SupIRBuck
However, for the smaller Signal type leads around
When using NSMD pads, the Solder Resist
Ensure that the solder resist in‐between the
the edge of the device, IR recommends that these
are Non Solder Mask Defined or Copper Defined.
Window should be larger than the Copper Pad
by at least 0.025mm on each edge, (i.e. 0.05mm
in X&Y,) in order to accommodate any layer to
layer misalignment.
smaller signal lead areas are at least 0.15mm
wide, due to the high x/y aspect ratio of the
solder mask strip.
IR3894
PD‐97745