MCD10085 Rev. 1.1, 08-Jul-10 Page 28 of 30 www.power-one.com
SQM48 Series Data Sheet
SemiQ
TM
Family 25A DC-DC Converters
Physical Information
SIDE VIEW
TOP VIEW
3
2
1
4
5
6
7
8
SQM48S Pinout (Surface Mount)
SIDE VIEW
TOP VIEW
1
2
3
7
8
6
5
4
SQM48T Pinout (Through-hole)
Pad/Pin Connections
Pad/Pin # Function
1 Vin (+)
2 ON/OFF
3 Vin (-)
4 Vout (-)
5 SENSE(-)
6 TRIM
7 SENSE(+)
8 Vout (+)
Height
Option
HT
(Max. Height)
CL
(Min. Clearance)
+0.000 [+0.00]
-0.038 [- 0.97]
+0.016 [+0.41]
-0.000 [- 0.00]
A 0.325 [8.26] 0.030 [0.77]
B 0.358 [9.09] 0.063 [1.60]
C 0.522 [13.26] 0.227 [5.77]
D
0.422 [10.72]
0.127 [3.23]
E
0.304 [7.72]
0.009 [0.23]
Pin
Option
PL
Pin Length
±0.005 [±0.13]
A 0.188 [4.77]
B 0.145 [3.68]
C 0.110 [2.79]
SQM48S Platform Notes
All dimensions are in inches [mm]
Connector Material: Copper
Connector Finish: Gold over Nickel
Converter Weight: 0.66 oz [18.5 g]
Recommended Surface-Mount Pads:
Min. 0.080” X 0.112” [2.03 x 2.84]
Max. 0.092” X 0.124” [2.34 x 3.15]
SQM48T Platform Notes
All dimensions are in inches [mm]
Pins 1-3 and 5-7 are Ø 0.040” [1.02]
with Ø 0.078” [1.98] shoulder
Pins 4 and 8 are Ø 0.062” [1.57]
without shoulder
Pin material: Brass
Pin Finish: Tin/Lead over Nickel
Converter Weight: 0.66 oz [18.5 g]