
Product # MQFL-270-12D
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005043 Rev. B
02/07/11
Page 6
Output:
Current:
±12V
10A
MQFL-270-12D
Figures
11.2
11.4
11.6
11.8
12.0
12.2
12.4
12.6
12.8
8 / 2
6 / 4
5 / 5
4 / 6
2 / 8
+IOUT (A)
/ -IOUT (A)
Po
si
tiv
e
O
ut
pu
t(
V)
-12.8
-12.6
-12.4
-12.2
-12.0
-11.8
-11.6
-11.4
-11.2
N
eg
at
iv
e
O
ut
pu
t(
V)
+Vout
-Vout
11.2
11.4
11.6
11.8
12.0
12.2
12.4
12.6
12.8
8 / 0
6 / 2
4 / 4
2 / 6
0 / 8
+IOUT (A)
/ -IOUT (A)
Po
si
tiv
e
O
ut
pu
t(
V)
-12.8
-12.6
-12.4
-12.2
-12.0
-11.8
-11.6
-11.4
-11.2
N
eg
at
iv
e
O
ut
pu
t(
V)
+Vout
-Vout
11.5
11.6
11.7
11.8
11.9
12.0
12.1
12.2
12.3
12.4
12.5
0
24
48
72
96
120
Total Output Power (W)
Po
si
tiv
e
O
ut
pu
t(
V)
-12.5
-12.4
-12.3
-12.2
-12.1
-12.0
-11.9
-11.8
-11.7
-11.6
-11.5
+Vout
-Vout
11.5
11.6
11.7
11.8
11.9
12.0
12.1
12.2
12.3
12.4
12.5
0
24
48
72
96
120
Total Output Power (W)
Po
si
tiv
e
O
ut
pu
t(
V)
-12.5
-12.4
-12.3
-12.2
-12.1
-12.0
-11.9
-11.8
-11.7
-11.6
-11.5
+Vout
-Vout
0
2
4
6
8
10
12
14
25
45
65
85
105
125
145
Case Temperature (C)
Io
ut
(A
)
0
24
48
72
96
120
144
168
Tjmax = 105 C
Tjmax = 125 C
Tjmax = 145 C
Po
ut
(W
)
0
2
4
6
8
10
12
14
0
2
4
6
8
10
12
14
Load Current (A)
O
ut
pu
tV
ol
ta
ge
(V
)
270 Vin
Figure 7: Load regulation vs. load current with power fixed at full
load (120W) and load currents split as shown between the +12V and
-12V outputs, at nominal input voltage and TCASE = 25C.
Figure 8: Load regulation vs. load current with power fixed at 80%
load (96W) and load currents split as shown between the +12V and
-12V outputs, at nominal input voltage and TCASE = 25C.
Figure 9: Load regulation vs. total output power from zero to to full
load where +Iout equals three times -Iout at nominal input voltage
and TCASE = 25C.
Figure 10: Load regulation vs. total output power from zero to to full
load where -Iout equals three times +Iout at nominal input voltage
and TCASE = 25C.
Figure 11: Output Current / Output Power derating curve as a
function of TCASE and the maximum desired power MOSFET
junction temperature (see Note 15).
Figure 12: Positive output voltage vs. total load current evenly split
showing typical current limit curves. See Current Limit section in the
Application Notes section.