Technical enquiries email: sales@murata-ps.com, tel: +508 339 3000
1 NCF010_6200810000_B01_21/04/08
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Features:
9 Small size, minimal footprint/low profile
9 10A Output Current (all voltages)
9 High Efficiency: up to 95%
9 High reliability
9 RoHS Compliant
9 Cost efficient open frame design
9 Pre-bias monotonic start-up
9 Over-current and Over-temperature protection
Output Input Efficiency
PARD
(mVp-p) Regulation
Max Vin
Nom.
(V)
Range
(V) Iin
Max
(A)
Full Load
Vout
(V)
Iout
(A) Typ. Max. Line Load Typ.
1 10 45 50 +/-0.1% +/-0.25% 5 3 –5 4.0 86%
1.2 10 45 50 +/-0.1% +/-0.25% 5 3 –5 4.75 88%
1.5 10 40 50 +/-0.1% +/-0.25% 5 3 –5 5.75 89%
1.8 10 40 50 +/-0.1% +/-0.25% 5 3 –5 6.75 91%
2 10 40 50 +/-0.1% +/-0.25% 5 3 –5 7.4 92%
2.5 10 40 50 +/-0.1% +/-0.25% 5 3 –5 9.1 93%
3.3 10 40 50 +/-0.1% +/-0.25% 5 4.5-5.5 7.8 95%
NOT RECOMMENDED
FOR NEW DESIGNS
Murata Power Solutions
2 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Input Characteristics Notes & Conditions Min Typ. Max Units
Input Voltage Operating Range 3.0 5 5.5 Vdc
Input Reflected Ripple Current 100 mA p-p
Inrush Current Transient 0.4 A2s
Input Filter Type (external) 100 μF
Input Turn ON Threshold 2.8 V
Input Turn OFF Threshold 2.7 V
ON Control Open or 0 to +0.4V
OFF Control +2.8V to Vin (<3mA)
Output Characteristics Notes & Conditions Min Typ. Max Units
Vout Accuracy 50% load -1.5 +1.5 %
Output Loading 0 10 A
Output Ripple & Noise
@ 20Mhz Bandwidth. 30 mV
Maximum Capacitive Load Low ESR 8000 μF
Vout Trim Range -10 +10 %
Total Accuracy Over line/load temperature <3%
Current Limit 13 16 20 A
Output Line Regulation -0.1 +0.1 %
Output Load Regulation +0.25 -0.25 %
Turn-on Overshoot 1 %
SC Protection Technique Hiccup with auto recovery
Pre-bias Start-up at output Unit sta rts monotonically with pre-
bias
Dynamic Characteristics Notes & Conditions Min Typ. Max Units
Load Transient 50% step, 2.5A/μs 100 mV
Settling Time 100
μs
Frequency 300
khz
Start-Up Time Vin to Vout and On/Off to Vout
Vout rise to monotonic <20 ms
General Specifications Notes & Conditions Min Typ. Max Units
MTBF Calculated (MIL-HDBK-217F) 1.5 x106 Hrs
Demonstrated @ 60% Confidence
Level 1 x106 Hrs
Thermal Protection Hotspot 110 120 °C
Operating Temperature Without derating -40 60 °C
Dimensions 2”Lx0.34”Wx0.5”H
(50.8x8.64x12.7mm)
Pin Dimensions 0.03” (0.76mm)
Pin Material Matte Sn Finish on component
Leads
Weight 0.3 ounces (8.5g)
Flammability Rating UL94V-0
Standards Compliance
CSA C22.2, No.60950/UL 60950, Third Edition (2000), File UL E165113
Murata Power Solutions
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Volant NCF010 Series
Non-Isolated 10A SIP 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. Heat is removed by
conduction, convection, and radiation to the surrounding environment. The thermal data
presented is based on measurements taken in a set-up as shown in fig 1. when the airflow is
parallel to the long axis of the module. The de-rating applies accordingly.
The temperature at either 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 Curve in
Figure 2 to Figure 8.
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.
Proper cooling can be verified by measuring the power module's temperature at Q1-pin 6 and Q2-pin
6 as shown in Figure 1.
Figure 1: Thermal Measurement Setup
Murata Power Solutions
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Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
TYPICAL DERATING CURVES
NCF0100100B (5Vin) Derating Curve
0
2
4
6
8
10
12
0 2030405060708090
Ambient Temperature (C)
Output Current (A)
0 LFM
100 LFM
200 LFM
Figure 2. Typical Power Derating vs Output Current for 5Vi and 1. 0Vo.
NCF0100120B (5Vin) Derating Curves
0
2
4
6
8
10
12
0 2030405069708090
Ambient Temperature (C)
Output Current (A)
0 LFM
100 LFM
200 LFM
Figure 3. Typical Power Derating vs Output Current for 5Vi and 1.2Vo.
Murata Power Solutions
5 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
NCF0100150B (5Vin) Derating Curve
0
2
4
6
8
10
12
0 2030405066708090
Ambient Temperature (C)
Output Current (A)
0 LFM
100 LFM
200 LFM
Figure 4. Typical Power Derating vs Output Current for 5Vi and 1.5Vo.
NCF0100180B (5Vin) Derating Curve
0
2
4
6
8
10
12
0 2030405060708090
Ambient Temperature (C)
Output Current (A)
0 LFM
100 LFM
200 LFM
Figure 5. Typical Power Derating vs Output Current for 5Vi and 1.8Vo.
Murata Power Solutions
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Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
NCF0100200B (5Vin) Derating Curve
0
2
4
6
8
10
12
0 2030405064708090
Ambient Temperature (C)
Output Current (A)
0 LFM
100 LFM
200 LFM
Figure 6. Typical Power Derating vs Output Current for 5Vi and 2.0Vo.
NCF0100250B (5Vin) Derating Curve
0
2
4
6
8
10
12
0 2030405066708090
Ambient Tem p erature (C)
Output Current (A)
0 LFM
100 LFM
200 LFM
Figure 7. Typical Power Derating vs Output Current for 5Vi and 2.5Vo.
Murata Power Solutions
7 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
NCF0100330B0 (5Vi n) Dera ting Curve
0
2
4
6
8
10
12
0 2030405060708090
Ambient Temperature (C)
Output Current (A)
0 LF M
100 LF M
200 LF M
Figure 8. Typical Power Derating vs Output Current for 5Vi and 3.3Vo.
TYPICAL EFFICIENCY CURVES
NCF0100330B0 (2 5C) Eff vs O ut put Load
80.00%
82.00%
84.00%
86.00%
88.00%
90.00%
92.00%
94.00%
96.00%
98.00%
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Output Loa d (A)
Efficiency (%)
Vin=4.5V
Vin=5.0V
Vin=5.5V
Figure 9. Efficiency Curves for Vout=3.3V (25C)
Murata Power Solutions
8 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
NCF0100250B0 (2 5C) Eff vs O ut put Load
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
100.00%
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Output Loa d (A)
Efficiency (%)
Vin=3.0V
Vin=5.0V
Vin=5.5V
Figure 10. Efficiency Curves for Vout=2.5V (25C)
NCF0100200B0 (2 5C) Eff vs O ut put Load
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
100.00%
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Output Loa d (A)
Efficiency (%)
Vin=3.0V
Vin=5.0V
Vin=5.5V
Figure 11. Efficiency Curves for Vout=2.0V (25C)
Murata Power Solutions
9 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
NCF0100180B0 (2 5C) Eff vs O ut put Load
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
90.00%
100.00%
0.51.52.53.54.55.56.57.58.59.5
Output Loa d (A)
Efficiency (%)
Vin=3.0V
Vin=5.0V
Vin=5.5V
Figure 12. Efficiency Curves for Vout=1.8V (25C)
NCF0100150B0 (2 5C) Eff vs O ut put Load
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
90.00%
100.00%
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Output Loa d (A)
Efficiency (%)
Vin=3.0V
Vin=5.0V
Vin=5.5V
Figure 13. Efficiency Curves for Vout=1.5V (25C)
Murata Power Solutions
10 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
NCF0100120B0 (2 5C) Eff vs O ut put Load
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
90.00%
100.00%
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Output Loa d (A)
Efficiency (%)
Vin=3.0V
Vin=5.0V
Vin=5.5V
Figure 14. Efficiency Curves for Vout=1.2V (25C)
NCF0100100B0 (2 5C) Eff vs O ut put Load
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
80.00%
90.00%
100.00%
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Output Loa d (A)
Efficiency (%)
Vin=3.0V
Vin=5.0V
Vin=5.5V
Figure 15. Efficiency Curves for Vout=1.0V (25C)
Murata Power Solutions
11 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Typical Start Up
Ch 1. Vin
Ch2. Vout.
Typical Start Up with pre-bias
Ch1 : Enable
Ch2 : Vout
Murata Power Solutions
12 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Typical Output Noise and Ripple
Output Voltage Set point adjustment.
The following relationship establish the calculation of external resistors:
Trim-Up
For trim_Up an external resistor is connected between the TRIM and Ground Pin.
Where, Rt = internal buffer resistor. For calculation choose value as per table below:
Vo, set (Volts) Rt (KΩ)
3.3 59
2.5 78.7
2.0 100
1.8 100
1.5 100
1.2 59
1.0 30.1
Rtrim_Up Vr R1
VR
t
Murata Power Solutions
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Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
R1 = 30.1 KΩ
ΔV = Change in adjustment voltage required ( example 8% of 2Volts = 0.16).
Vr = 0.8
Trim_Down
For trim down an external resistor is to be connected between TRIM and Vout pins of the module.
The value of Rtrim_Down is calculated from the following relationship.
The values of Vr , R1 and Rt are as defined above.
ΔV is the adjustment trim required.
Examples:
Vout = 1.5V Trim_Up required 8% to 1.62V
Vout = 1.5V Trim_Down required 8% to 1.38V
Remote Sense:
All Murata Power Solutions SIP power module s offer a n option for remote sense. The remote sense
compensates for any distribution drop s to accurately control voltage at the point of load. The voltage between
the sense pin to Vout pin should not exceed 0.5V.
Safety Considerations
Rtrim_Down Vout Vr
V1R1
R
t
Rtrim_Up 30100 0.8
0.12 10000
0
Rtrim_Up 100.66k
Rtrim_Down 1.5 0.8
0.12 1 30100
10000
0
Rtrim_Down 45.483k
The NCF series of converters are certified to IEC/EN/CSA/UL 60950. If this product is built into information technology
equipment, the installation must comply with the above standard. An external i nput fuse of less than 50 Amps (5A to
30A recommended), must be used to meet the above re quirements. The output of the converter [Vo(+)/Vo(-)] is
considered to remain within SELV limits when the input to the converter meets SELV or TNV-2 requirements.
The converters and materials meet UL 94V-0 flammability ratings.
Murata Power Solutions
14 NCF010_6200810000_A03_025Jun07
Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
SMT Lead free Reflow profile
1. Ramp up rate during preheat : 1.33 ℃/Sec ( From 30℃ to 150℃ )
2. Soaking temperature : 0.29 ℃/Sec ( From 150℃ to 180℃ )
3. Ramp up rate during reflow : 0.8 ℃/Sec ( From 220℃ to 250℃ )
4. Peak temperature : 250℃, above 220℃ 40 to 70 Seconds
5. Ramp up rate during cooling : -1.56 ℃/Sec ( From 220℃ to 150℃ )
Mechanical Information
PIN CONNECTION
FUNCTION
+Output
+Output
+Sense
+Output
Common
Common
Pin
1
2
3
4
5
6
All Dimmension In Inches(mm)
Tolerance :
.XX= ± 0.04
.XXX= ± 0.010
7
8
9
10
11
+V Input
+V Input
No Pin
Trim
On/Off Control
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LAYOUT PATTERN
TOP VIEW
2.00(50.8)
0.50(12.7)
0.327(8.3)
0.23(5.8)
0.05(1.3)
0.10(2.54) 1.00(25.4)
0.40(10.2)
0.139(3.53)
0.025(0.64)
0.33(8.4)
0.29(7.4)
SIZE SIP
1.1mm PLATED THROUGH HOLE
1.6mm PAD SIZE
0.28(7.10) 0.025(0.64)
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Volant NCF010 Series
Non-Isolated 10A SIP DC/DC Converters
Ordering Information
Part Number Vin Vout Iout Enable Logic Pin Length
NCF0100100B0C 3.0V - 5.5V 1.0V 10A Negative 0.139"
NCF0100120B0C 3.0V - 5.5V 1.2V 10A Negative 0.139"
NCF0100150B0C 3.0V - 5.5V 1.5V 10A Negative 0.139"
NCF0100180B0C 3.0V - 5.5V 1.8V 10A Negative 0.139"
NCF0100200B0C 3.0V - 5.5V 2.0V 10A Negative 0.139"
NCF0100250B0C 3.0V - 5.5V 2.5V 10A Negative 0.139"
NCF0100330B0C 4.5V - 5.5V 3.3V 10A Negative 0.139"
NCF0100101B 0C 3.0V - 5.5V 1.0V 10A Positive 0.139"
NCF0100121B 0C 3.0V - 5.5V 1.2V 10A Positive 0.139"
NCF0100151B 0C 3.0V - 5.5V 1.5V 10A Positive 0.139"
NCF0100181B 0C 3.0V - 5.5V 1.8V 10A Positive 0.139"
NCF0100201B 0C 3.0V - 5.5V 2.0V 10A Positive 0.139"
NCF0100251B 0C 3.0V - 5.5V 2.5V 10A Positive 0.139"
NCF0100331B 0C 4.5V - 5.5V 3.3V 10A Positive 0.139"
Label Information
Pin Length Option
B=0.139”
S=SMT
Enable Logic, 0 fo
r
–ve, 1 for +ve
VoutIout
Place Holde
r
Vout Range
F=Fixed
A
=Adjustable
Vin (value or range)
C= 3.3V
-
5.0V
E= 8.3V
-
14V
F= 6.0V
-14V
Non
-
Isolated Family
0 = Standard. (No PGood option)
P = Power Good Option
C = RoHS Compliant
N C F 0 1 0 x x x 0 B 0 – X C
X = Factory control character
(not required when ordering)
RoHS Compliant
The NCF010 series of converters is in compliance with the European Union Directive 2002/95/EC (RoHS) with repsect to the following sustances:
lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium, polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE).
