DCM300P280x500A40
Electrical Specifications
Specifications apply over all line, trim and load conditions, internal temperature TINT = 25ºC, unless otherwise noted. Boldface specifications apply over the
temperature range of -40°C < TINT < 125°C for T grade and -55°C < TINT < 125°C for M grade.
Attribute
Symbol
Conditions / Notes
Min
200
Typ
300
Max
Unit
Power Input Specification
Input voltage range
VIN
IINRP
Continuous operation
420
6.5
V
A
Inrush current (peak)
With maximum COUT-EXT, full resistive load
Effective value at nominal input voltage
At 1 MHz
Input capacitance (internal)
Input capacitance (internal) ESR
Input inductance (external)
CIN-INT
RCIN-INT
LIN
0.8
µF
2.50
mΩ
µH
Differential mode, with no further line bypassing
No Load Specification
5
Nominal line, see Fig. 3
0.7
3.3
2.3
2.5
4.5
5.0
W
W
W
W
Input power – disabled
PQ
Worst case line, see Fig. 3
Nominal line, see Fig. 4
Input power – enabled with no load
PNL
Worst case line, see Fig. 4
Power Output Specification
VIN = 300 V, nominal trim, at 100% Load, TINT = 25°C
Output voltage set point
VOUT-NOM
27.86
28.0
28.14
V
V
Trim range over temp, with > 10% rated load.
Specifies the Low, Nominal and High Trim conditions.
Rated output voltage trim range
VOUT-TRIMMING
16.8
28.0
30.8
Linear load line. Output voltage increase from full rated
load current to no load (Does not include light load
regulation). See Fig. 6 and Sec. Design Guidelines
Output voltage load regulation
ΔVOUT-LOAD
1.3194
1.4736
1.6296
V
0% to 10% load, additional VOUT relative to calculated
load-line point; see Fig. 6 and Sec. Design Guidelines
Output voltage light load regulation
ΔVOUT-LL
-0.00
2.95
V
Output voltage temperature
coefficient
Nominal, linear temperature coefficient, relative to
TINT = 25ºC. See Fig. 5 and Design Guidelines Section
ΔVOUT-TEMP
-3.73
mV/°C
The total output voltage setpoint accuracy from the
VOUT accuracy
%VOUT-ACCURACY calculated ideal VOUT based on load, temp and trim.
-3.0
3.0
%
Excludes ΔVOUT-LL
Rated output power
Rated output current
POUT
IOUT
Continuous, VOUT ≥ 28.0 V
Continuous, VOUT ≤ 28.0 V
500
W
A
17.86
Of rated IOUT max. Fully operational current limit, for
nominal trim and below
Output current limit
Current limit delay
IOUT-LM
100
120
130
%
tIOUT-LIM
The module will power limit in a fast transient event
Full load, nominal line, nominal trim
1
ms
%
%
%
92.9
92.1
91.2
93.6
Efficiency
η
Full load, over line and temperature, nominal trim
50% load, over rated line, temperature and trim
20 MHz bandwidth. At nominal trim, minimum COUT-EXTand
at least 10 % rated load
Output voltage ripple
VOUT-PP
797
mV
Output capacitance (internal)
COUT-INT
Effective value at nominal output voltage
At 1 MHz
33
µF
Output capacitance (internal) ESR
RCOUT-INT
0.069
mΩ
Excludes component temperature coefficient For load
transients that remain > 10% rated load
Output capacitance (external)
Output capacitance (external)
Output capacitance (external)
COUT-EXT
200
200
200
2000
2000
2000
µF
µF
µF
Excludes component temperature coefficient For load
transients down to 0% rated load, with static trim
Excludes component temperature coefficient Forload
transientsdownto0%ratedload,withdynamictrimming
COUT-EXT-TRANS
COUT-EXT-
TRANS-TRIM
DCM™ DC-DC Converter
Rev 1.1
vicorpower.com
800 927.9474
Page 5 of 25
10/2015
VICOR [ VICOR CORPORATION ]
