Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Features:
Small size, minimal footprint – SMT/SIP package
5A Output Current (all voltages)
High Efficiency: up to 94%
High reliability
RoHS Compliant
Cost efficient open frame design
Output voltage programmable by an external resistor.
Monotonic Start with Pre-Bias.
Output
Vout
(V)
0.75
1.2
1.5
1.8
2.0
2.5
Iout
(A)
5
5
5
5
5
5
PARD
(mVp-p)
Typ.
30
30
30
30
30
30
Max.
50
50
50
50
50
50
Regulation
Max
Line
+/-0.4%
+/-0.4%
+/-0.4%
+/-0.4%
+/-0.4%
+/-0.4%
Load
+/-0.5%
+/-0.5%
+/-0.5%
+/-0.5%
+/-0.5%
+/-0.5%
Input
Vin
Nom.
(V)
5
5
5
5
5
5
Efficiency
Range
(V)
Iin
Typ
(A)
0.949
1.412
1.724
2.022
2.222
2.217
Full Load
Typ.
79%
85%
87%
89%
90%
92%
3.0– 5.5
3.0– 5.5
3.0– 5.5
3.0– 5.5
3.0– 5.5
3.0– 5.5
Technical enquiries email: sales@murata-ps.com tel: +508 339 3000
,
1
NCA005_6200830000.B01
Murata Power Solutions
Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Input Characteristics
Input Voltage Operating Range
Input Reflected Ripple Current
Inrush Current Transient
Input Filter Type (external)
Input Turn ON Threshold
Input Turn OFF Threshold
Enable
(Positive enable has 20K pullup)
(Negative enable has no internal
pullup resistor)
Notes & Conditions
Min
3.0
Typ.
5
150
100
2.05
1.91
open
<0.4
<0.4
Max
5.5
0.2
Units
Vdc
mA p-p
A
2
s
μF
V
V
Vdc
Vdc
Positive enable: ON
Positive enable: OFF
Negative enable: ON;
open circuit or
Negative enable: OFF
Notes & Conditions
100% load
2
Min
-1.5
0
Typ.
Vin
Max
+1.5
5
50
3000
3.63
<2%
10
Units
%
A
mV
μF
V
A
%
%
%
Output Characteristics
Vout Accuracy
Output Loading
Output Ripple & Noise
@ 20Mhz Bandwidth.
Maximum Capacitive Load
Vout Trim Range (Nom)
Total Accuracy
Current Limit
Output Line Regulation
Output Load Regulation
Turn-on Overshoot
SC Protection Technique
Pre-bias Start-up at output
Dynamic Characteristics
Load Transient
Frequency
Rise Time
Start-Up Time
General Specifications
MTBF
Thermal Protection
Operating Temperature
Operating Ambient Temperature
SIP Dimensions
SMT Dimensions
SIP Pin Dimensions
SMT Block Dimensions
Pin and Block Material
Weight
Flammability Rating
Low ESR
0.75
Over line/load temperature
-0.4
-0.5
Hiccup with auto recovery
Unit starts monotonically with pre-
bias
Notes & Conditions
50% step, 0.1A/μs
Settling Time
10% Vo to 90% Vo
Vin to Vout and On/Off to Vout
Vout rise to monotonic
Notes & Conditions
Calculated (MIL-HDBK-217F)
Thermal Measurement Location (TML)
Without derating, 0LFM
See Power derating curve
0.9”Lx0.4”Wx0.22”H
(22.9x10.16x5.6mm)
0.80”Lx0.450”Wx0.24”H
(20.3x11.43x6.09mm)
0.025” (0.64mm) SQUARE
0.090” x0.062” x 0.062”
SQUARE
Square copper with tin-lead plated
UL94V-0
Min
Min
Typ.
+0.4
+0.5
1
Max
200
200
300
4.5
6.5
Typ.
1.5
110
Max
Units
mV
μs
KHz
ms
ms
Units
x10
6
Hrs
°C
°C
°C
-40
-40
70
85
0.64
mm
2.3
g
2
NCA005_6200830000.B01
Murata Power Solutions
Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Standards Compliance
CSA C22.2, No.60950/UL 60950, Third Edition (2000)
Thermal Considerations
The power module operates in a variety of thermal environments; however, sufficient cooling should
be provided to help ensure reliable operation of the unit.
The thermal data presented is based on measurements taken at various airflows. Note that airflow is
parallel to the long axis of the module as shown in Figure 1 and derating applies accordingly.
TML
TML
Figure 1. Thermal Tests Set-Up.
The temperature at either TML location should not exceed 110°C. The output power of the module
should not exceed the rated power for the module(Vo,set X Io,max).
Convection Requirements for Cooling
To predict the approximate cooling needed for the module, refer to the Power Derating Curves in
Figures 2-17 .
These derating curve are approximations of the ambient temperature and airflow required to keep the
power module temperature below it's maximum rating. Once the module is assembled in the actual
system, the module's temperature should be verified.
3
NCA005_6200830000.B01
Murata Power Solutions
Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
TYPICAL DERATING CURVES SIP/SMT VERSION
NCA0051331S0 Vo=0.75V Derating Curve
6.0
5.0
4.0
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
0LFM
100LFM
200LFM
Output Current (A)
Ambient Temperature (C)
Fig. 2. SMT Power Derating vs Output Current for 5.0Vin 0.75V Out.
NCA0051331B0 Vo=0.75V Derating Curve
6.0
5.0
4.0
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
0LFM
100LFM
200LFM
Output Current (A)
Ambient Temperature (C)
Fig. 3. SIP Power Derating vs Output Current for 5Vin 0.75V Out.
4
NCA005_6200830000.B01
Murata Power Solutions
Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
NCA0051331S0 Vo=1.2V Derating Curve
6.0
5.0
4.0
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
0LFM
100LFM
200LFM
Output Current (A)
Ambient Temperature (C)
Fig 4. SMT Power Derating vs Output Current for 5.0Vin 1.2V Out.
NCA0051331B0 Vo=1.2V Derating Curve
6.0
5.0
4.0
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
0LFM
100LFM
200LFM
Output Current (A)
Ambient Temperature (C)
Fig 5. SIP Power Derating vs Output Current for 5.0Vin 1.2V Out.
5
NCA005_6200830000.B01
