Volant NCA015 Series
Non-Isolated 15A SIP/SMT DC/DC Converters
NOT RECOMMENDED
FOR NEW DESIGNS
Features:
15A Output Current (all voltages)
High Efficiency: up to 96%
High reliability
RoHS Compliant
Cost efficient open frame design
Small size, minimal footprint – SMT/SIP package
Output voltage programmable by an external resistor
Monotonic Start with Pre-Bias
Over-current and Over-temperature protection
Output
Vout
(V)
1
1.2
1.5
1.8
2
2.5
3.3
Iout
(A)
15
15
15
15
15
15
15
PARD
(mVp-p)
Typ.
28
28
28
28
28
28
28
Max.
50
50
50
50
50
50
50
Regulation
Max
Line
+/-0.2%
+/-0.2%
+/-0.2%
+/-0.2%
+/-0.2%
+/-0.2%
+/-0.2%
Load
+/-0.4%
+/-0.4%
+/-0.4%
+/-0.4%
+/-0.4%
+/-0.4%
+/-0.4%
Input
Vin
Nom.
(V)
5
5
5
5
5
5
5
Efficiency
Range
(V)
Iin
Max
(A)
5.81
6.89
8.42
9.89
10.86
11.5
11.45
Full Load
Typ.
82%
84%
87%
88%
89%
92%
94%
3 –5.5
3 –5.5
3 –5.5
3 –5.5
3 –5.5
3 –5.5
4.5-5.5
Technical enquiries email: sales@murata-ps.com tel: +508 339 3000
,
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NCA015_6200820000_B01_21/04/08
Volant NCA015 Series
Murata Power Solutions
Non-Isolated 15A 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
ON Control
OFF Control
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
Notes & Conditions
Min
3.0
Typ.
5
100
100
2.8
2.7
Open or 0 to +0.4V
+2.8V to Vin (<3mA)
Notes & Conditions
50% load
Min
-1.5
0
Typ.
Max
+1.5
15
30
8000
3.3
<3%
23
27
+0.2
+0.5
1
Units
%
A
mV
μF
V
A
%
%
%
Max
5.5
0.4
Units
Vdc
mA p-p
A
2
s
μF
V
V
Low ESR
0.9
Over line/load temperature
19.5
-0.2
-0.5
Hiccup with auto recovery
Unit starts monotonically with pre-
bias
Notes & Conditions
50% step, 2.5A/μs
Settling Time
Vin to Vout and On/Off to Vout
Vout rise to monotonic
Notes & Conditions
Calculated (MIL-HDBK-217F)
Demonstrated @ 90% Confidence
Level
Hotspot
Without derating
2”Lx0.34”Wx0.5”H
(50.8x8.64x12.7mm)
0.03” (0.76mm)
Round copper with tin-lead plated over
nickel underplate
0.3 ounces (8.5g)
UL94V-0
Min
1.4
1
Min
Typ.
Dynamic Characteristics
Load Transient
Frequency
Start-Up Time
Max
100
100
Units
mV
μs
ms
300khz
<20
General Specifications
MTBF
Typ.
Max
Units
x10
6
Hrs
x10
6
Hrs
°C
°C
Thermal Protection
Operating Temperature
Dimensions
Pin Dimensions
Pin Material
Weight
Flammability Rating
110
-40
120
60
Standards Compliance
CSA C22.2, No.60950/UL 60950, Third Edition (2000), File UL E165113
2
NCA015_6200820000_B01_21/04/08
Volant NCA015 Series
Murata Power Solutions
Non-Isolated 15A SIP/SMT DC/DC Converters
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.
Figure 1. Thermal Tests Set-Up.
The temperature at either location should not exceed 110oC. 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 2-15 .
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
NCA015_6200820000_B01_21/04/08
Volant NCA015 Series
Murata Power Solutions
Non-Isolated 15A SIP/SMT DC/DC Converters
TYPICAL DERATING CURVES SIP/SMT VERSION
NCA0151330S (5Vi, 3.3Vo) Derating Curve
16
Output Current (A)
14
12
10
8
6
4
2
0
0
10
17
30
40
50
60
70
80
90
Ambient Temperature (C)
0 LFM
100 LFM
200 LFM
Fig. 2. SMT Power Derating vs Output Current for 5Vin 3.3V Out.
NCA0151330B (5Vi, 3.3Vo) Derating Curve
16
Output Current (A)
14
12
10
8
6
4
2
0
0
20
29
40
50
53
60
70
80
90
Ambient Temperature (C)
0 LFM
100 LFM
200 LFM
Fig. 3. SIP Power Derating vs Output Current for 5Vin 3.3V Out.
4
NCA015_6200820000_B01_21/04/08
Volant NCA015 Series
Murata Power Solutions
Non-Isolated 15A SIP/SMT DC/DC Converters
NCA0151330S (5Vi, 2.5Vo) Derating Curve
16
Output Current (A)
14
12
10
8
6
4
2
0
0
10
18
30
40
50
60
70
80
90
Ambient Temperature (C)
0 LFM
100 LFM
200 LFM
Fig 4. SMT Power Derating vs Output Current for 5Vin 2.5V Out.
NCA0151330B (5Vi, 2.5Vo) Derating Curve
16
Output Current (A)
14
12
10
8
6
4
2
0
0
10
20
30
40
50
60
70
80
90
Ambient Temperature (C)
0 LFM
100 LFM
200 LFM
Fig 5. SIP Power Derating vs Output Current for 5Vin 2.5V Out.
5
NCA015_6200820000_B01_21/04/08
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