Datasheet
www.murata-ps.com/support
TYPICAL PERFORMANCE DATA
UQQ Series
Wide Input Range Single Output DC-DC Converters
MDC_UQQ.D05 Page 9 of 18
74
76
78
80
82
84
86
88
90
92
UQQ-12/8-Q48P
Efficiency vs. Line Voltage and Load Current @ 25°C
Load Current (Amps)
Efficiency (%)
1 2 3 4 5 6 7 8
V
IN
= 75V
V
IN
= 48V
V
IN
= 36V
V
IN
= 18V
4
4.5
5
5.5
6
6.5
7
7.5
8
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Output Current (Amps)
Ambient Temperature (
°
C)
UQQ-12/8-Q48P Maximum Current Temperature Derating
(With baseplate, V
IN = 48V transverse air flow at sea level)
Natural Convection
100 lfm
200 lfm
300 lfm
400 lfm
4
4.5
5
5.5
6
6.5
7
7.5
8
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Output Current (Amps)
Ambient Temperature (
°
C)
UQQ-12/8-Q48P Maximum Current Temperature Derating
(With baseplate, V
IN
= 24V, transverse air flow at sea level)
Natural Convection
100 lfm
200 lfm
300 lfm
400 lfm