LQFP - Low Profile Quad Flat Pack

      

The Low Profile Quad Flat Pack, or LQFP, is a surface-mount IC package with leads extending from all four sides of the package body.

   

The LQFP comes in different body sizes, with lead counts ranging from 48 to 216. Lead pitch values used by LQFP's vary:  0.4mm, 0.5 mm, 0.65 mm, and 0.80 mm. The typical LQFP body thickness is 1.4 mm.

   

Table 1. Properties of some LQFP's

Part #  

No.
of Pins

Body
Size  

Body
Thickness  

Lead
Pitch  

LQFP-48 

48

7 mm x 7 mm

1.4 mm

0.5 mm

LQFP-64

64

7 mm x 7 mm

1.4 mm

0.4 mm

LQFP-100

100

14 mm x 14 mm  

1.4 mm

0.5 mm

LQFP-128

128

14 mm x 14 mm  

1.4 mm

0.4 mm

LQFP-128

128

14 mm x 20 mm  

1.4 mm

0.5 mm

LQFP-144

144

20 mm x 20 mm

1.4 mm

0.5 mm

LQFP-216

216

24 mm x 24 mm  

1.4 mm

0.4 mm

                        
Figure 1.  The Low-Profile QFP (LQFP)

   

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