Technical Specification
Quarter
48V 3.3/1.8V
77W
out
in
Brick Dual
0.500
(12.7)
MECHANICAL
DIAGRAM
0.375
(9.53)
2.30
(58.4)
0.375
(9.53)
0.250
(6.35)
2.00
0.350
(8.89)
(50.8)
0.350
(8.89)
0.750
(19.05)
Top View
1.450
(36.83)
0.700
(17.78)
Pin far side
typical
QGA Option
0.424 (10.77)
max height
See Note 8
0.340 +.014
(8.64 +0.36)
Side View
Bottom side
Clearance
Lowest
Component
0.019+/-0.013
Load Board
(0.48+/-0.33)
0.145
(3.68)
QGA Option
0.076 (1.93)
min clearance
See Note 8
See Note 2
NOTES
PIN CONNECTIONS
1) All pins are 0.040” (1.02mm) diameter with
Pin No. Name
Function
0.080” (2.03 mm) diameter standoff shoulders.
1
2
Vin(+)
Positive input voltage
2) Other pin extension lengths available. Recommended pin
length is 0.03” (0.76mm) greater than the PCB thickness.
ON/OFF
TTL input to turn converter
on and off, referenced to
Vin(-), with internal pull up.
3) All Pins: Material - Copper Alloy
Finish - Tin/Lead over Nickel plate
4) Undimensioned components are shown for visual
3
4
5
A
6
7
Vin(-)
Negative input voltage
1.8V positive output voltage
Output Return
reference only.
1.8Vout(+)
OP RTN
2nd TRIM
TRIM
5) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
6) Weight: 1.1 oz. (31 g) typical
2nd Output voltage trim2
1
Output voltage trim
7) Workmanship: Meets or exceeds IPC-A-610C Class II
3.3Vout(+)
3.3V positive output voltage
8) Modules can be ordered as QGA option that have different
pins to provide a minimum bottom side clearance of
0.076” while increasing maximum height to 0.424”.
See ordering page for more information.
Pins in Italics Shaded text are Optional
NOTES
1. For Standard feature unit (S feature), one trim pin (pin 6) trims both outputs
simultaneously by the same amount in the same direction.
2. For units with optional trim pin (T feature), the original trim pin (pin 6)
trims the low voltage output and the optional trim pin (pin A) trims the high
voltage output. Both trim independently of one other.
Product # DQ63318QGL08
Phone 1-888-567-9596
Doc.# 005-2DQ638D Rev. B
10/7/03
Page 2
SYNQOR [ SYNQOR WORLDWIDE HEADQUARTERS ]
