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GDQ54S12B-4A DC-DC Converter
Technical Manual
Parameter
No-load loss
Input capacitance
Response to input
transient
4.3 Output
Table 4-3 Output specification
Parameter
Output voltage
setpoint
Output voltage
Output current
Output power
Line regulation
Load regulation
Output voltage
regulation precision
Output temperature
coefficient
Output external
capacitance
Ripple and noise
(peak to peak)
Output voltage
overshoot
Issue 02 (2021-09-03)
Min.
Typ.
-
8
440
680
-
1.5
-
-
Min.
Typ.
Max.
11.88
12.00
12.12
11.64
-
12.36
9.80
-
12.36
0
-
54
0
-
650
–0.5
-
0.5
–17
17
–3
-
3
–5
-
5
–18
-
18
–0.02
-
0.02
660
-
6000
-
180
500
-
-
5
Copyright © Huawei Technologies Co., Ltd.
Max.
Unit
Notes & Conditions
11
W
V
in
-
µF
Aluminum electrolytic capacitor
2.0
V
0.5 V/µs input transient, V
43–75 V, 100% load
3.0
V
0.5 V/µs input transient, V
36–75 V, 100% load
Unit
Notes & Conditions
V
T
= 25°C, V
A
I
onom
V
V
= 43–75 V, I
in
V
V
= 36–43 V, I
in
Note)
A
-
W
-
% V
V
= 43–75 V; I
out
in
% V
V
= 36–43 V; I
out
in
% V
V
= 48 V; I
out
in
%
V
= 43–75 V; I
in
%
V
= 36–43 V; I
in
%/°C
T
= –40°C to +85°C, V
A
V
out
µF
SMD aluminum solid capacitor or
chip aluminum capacitor, ESR < 30
mΩ.
mV
Oscilloscope bandwidth: 20 MHz.
%
Full range of V
4 Electrical Specifications
= 48 V, I
= 0 A, T
out
A
= 48 V, I
in
out
= I
out
onom
= I
out
onom
= I
out
onom
= I
out
onom
= I
– I
out
omin
onom
= I
out
omin
= I
out
omin
= 48 V,
in
= 12 V, I
= 54 A
out
, I
, and T
in
out
= 25°C
=
in
=
in
= 50%
(see
– I
onom
– I
onom
A
9
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