cdc nca005

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Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Features:
9
Small size, minimal footprint – SMT/SIP package
9
5A Output Current (all voltages)
9
High Efficiency: up to 94%
9
High reliability
9
RoHS Compliant
9
Cost efficient open frame design
9
Output voltage programmable by an external resistor.
9
Monotonic Start with Pre-Bias.
Output
Input
Efficiency
Vout
(V)
Iout
(A)
PARD
(mVp-p)
Regulation
Max
Vin
Nom.
(V)
Range
(V)
Iin
Typ
(A)
Full Load
Typ. Max.
Line
Load
Typ.
0.75
5
30
50
+/-0.4%
+/-0.5%
5
3.0– 5.5
0.949
79%
1.2
5
30
50
+/-0.4%
+/-0.5%
5
3.0– 5.5
1.412
85%
1.5
5
30
50
+/-0.4%
+/-0.5%
5
3.0– 5.5
1.724
87%
1.8
5
30
50
+/-0.4%
+/-0.5%
5
3.0– 5.5
2.022
89%
2.0
5
30
50
+/-0.4%
+/-0.5%
5
3.0– 5.5
2.222
90%
2.5
5
30
50
+/-0.4%
+/-0.5%
5
3.0– 5.5
2.217
92%
Technical enquiries email: sales@murata-ps.com, tel: +508 339 3000
1 NCA005_6200830000.B01
 Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Murata Power Solutions
Input Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Input Voltage Operating Range
3.0
5
5.5
Vdc
Input Reflected Ripple Current
150
mA p-p
A
2
s
Inrush Current Transient
0.2
Input Filter Type (external)
100
μ
F
Input Turn ON Threshold
2.05
V
Input Turn OFF Threshold
1.91
V
Enable
Positive enable: ON
open
(Positive enable has 20K pullup)
Positive enable: OFF
<0.4
Vdc
(Negative enable has no internal
Negative enable: ON;
open circuit or
<0.4
Vdc
pullup resistor)
Negative enable: OFF
2
Vin
Output Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Vout Accuracy
100% load
-1.5
+1.5
%
Output Loading
0
5
A
Output Ripple & Noise
@ 20Mhz Bandwidth.
50
mV
Maximum Capacitive Load
Low ESR
3000
μ
F
Vout Trim Range (Nom)
0.75
3.63
V
Total Accuracy
Over line/load temperature
<2%
Current Limit
10
A
Output Line Regulation
-0.4
+0.4
%
Output Load Regulation
-0.5
+0.5
%
Turn-on Overshoot
1
%
SC Protection Technique
Hiccup with auto recovery
Pre-bias Start-up at output
Unit starts monotonically with pre-
bias
Dynamic Characteristics
Notes & Conditions
Min
Typ.
Max
Units
Load Transient
200
mV
50% step, 0.1A/
μ
s
Settling Time
200
μ
s
Frequency
300
KHz
Rise Time
10% Vo to 90% Vo
4.5
ms
Start-Up Time
Vin to Vout and On/Off to Vout
Vout rise to monotonic
6.5
ms
General Specifications
Notes & Conditions
Min
Typ.
Max
Units
x10
6
Hrs
MTBF
Calculated (MIL-HDBK-217F)
1.5
Thermal Protection
Thermal Measurement Location (TML)
110
°C
Operating Temperature
Without derating, 0LFM
-40
70
°C
Operating Ambient Temperature
See Power derating curve
-40
85
°C
SIP Dimensions
0.9”Lx0.4”Wx0.22”H
(22.9x10.16x5.6mm)
SMT Dimensions
0.80”Lx0.450”Wx0.24”H
(20.3x11.43x6.09mm)
SIP Pin Dimensions
0.025” (0.64mm) SQUARE
0.64
mm
SMT Block Dimensions
0.090” x0.062” x 0.062”
SQUARE
Pin and Block Material
Square copper with tin-lead plated
Weight
2.3
g
Flammability Rating
UL94V-0
2 NCA005_6200830000.B01
 Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Murata Power Solutions
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
 Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Murata Power Solutions
TYPICAL DERATING CURVES SIP/SMT VERSION
NCA0051331S0 Vo=0.75V Derating Curve
6.0
5.0
4.0
0LFM
100LFM
200LFM
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
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
0LFM
100LFM
200LFM
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
Ambient Temperature (C)
Fig. 3. SIP Power Derating vs Output Current for 5Vin 0.75V Out.
4 NCA005_6200830000.B01
 Volant NCA005 Series
Non-Isolated 5A SIP/SMT DC/DC Converters
Murata Power Solutions
NCA0051331S0 Vo=1.2V Derating Curve
6.0
5.0
4.0
0LFM
100LFM
200LFM
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
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
0LFM
100LFM
200LFM
3.0
2.0
1.0
0.0
20
30
40
50
60
70
80
90
100
Ambient Temperature (C)
Fig 5. SIP Power Derating vs Output Current for 5.0Vin 1.2V Out.
5 NCA005_6200830000.B01
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