Data Sheet
March 27, 2008
QBW018A0B Series Power Modules, DC - DC Converters:
36 – 75Vdc Input; 12Vdc Output; 18A Output Current
Electrical Specifications
(continued)
Parameter
Output Voltage Set-point
(V
IN
=
IN, min
, I
O
=I
O, max
, T
A
=25°C)
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
)
Load (I
O
=I
O, min
to I
O, max
)
Temperature (T
ref
=T
A, min
to T
A, max
)
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max
)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
Output Current
Output Current Limit Inception
Efficiency
V
IN
= V
IN, nom
, T
A
=25°C
I
O
=I
O, max ,
V
O
= V
O,set
Switching Frequency
Dynamic Load Response
(ΔIo/Δt=1A/10μs; V
in
=V
in
,nom; T
A
=25°C;
Tested with a 10
μF
aluminum and a 1.0
μF
tantalum capacitor across the load.)
Load Change from Io= 50% to 75% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
Load Change from Io= 75% to 50% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
⎯
__
⎯
__
All
f
sw
⎯
300
⎯
kHz
All
η
__
93
⎯
%
All
All
All
All
All
C
O, max
I
o
I
O, lim
⎯
⎯
⎯
0
⎯
20
25
70
⎯
⎯
⎯
3,000
18
⎯
mV
rms
mV
pk-pk
μF
Adc
Adc
All
All
All
⎯
⎯
⎯
0.2
3
150
% V
O, set
% V
O, set
mV
All
V
O
11.4
⎯
12.6
V
dc
Device
All
Symbol
V
O, set
Min
Typ
12
Max
Unit
V
dc
12V
V
pk
t
s
4
300
%V
O, set
μs
V
pk
t
s
__
__
4
300
__
%V
O, set
μs
LINEAGE
POWER
3
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
