GE Industrial Solutions 12V Mega TLynx - Manual (Page 15)

Data Sheet
May 4, 2012 12V Mega TLynx TM : Non-Isolated DC-DC Power Modules:
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current
LINEAGE POWER 15
output capacitance will be required. Table 3 lists
recommended values of R
TUNE
and C
TUNE
in order
to meet 2% output voltage deviation limits for some
common output voltages in the presence of a 15A
to 30A step change (50% of full load), with an input
voltage of 12V.
Please contact your Lineage Power technical
representative to obtain more details of this feature
as well as for guidelines on how to select the right
value of external R-C to tune the module for best
transient performance and stable operation for other
output capacitance values or input voltages other
than 12V.
Table 2. General recommended values of of
R
TUNE
and C
TUNE
for Vin=12V and various
external ceramic capacitor combinations.
Table 3. Recommended values of R
TUNE
and
C
TUNE
to obtain transient deviation of ≤2% of
Vout for a 15A step load with Vin=12V.
Vo 3.3V 2.5V 1.8V 1.2V 0.8V
Co
2x47 μF
+
3x330 μ
F
Polyme
r
3x47 μF +
3x330 μF
Polymer
3x47 μF
+
4x330 μF
Polymer
7x330 μF
Polymer
2x47 μF+
10
x330 μF
Polymer
R
TUNE
390 390 330 220 150
C
TUNE
2200pF 3900pF 6800pF 10nF 56nF
ΔV 66mV 50mV 36mV 24mV 16mV
Co 1x47 μF 2x47μF 4x47μF 10x47μF 20x47μF
R
TUNE
560 390 390 220 220
C
TUNE
270pF 470pF 820pF 2200pF 4700pF