Technical
S pecification
NQ16W50SMA16
6.0-16.0V
Input
0.75-5.0V
Outputs
16 Amp
Current
Non
Isolated
SMT
Sur face Mount
Th e N iQo r
®
S M T D C / D C c o n v e r t e r i s a n o n - i s o l a t e d b u c k
re gu la tor, wh ich e mplo ys synchro no us recti ficat ion to
ach i ev e ext rem ely h i gh c onv ers ion eff i ci enc y. T h e N iQor
fa m ily o f c on v e rt e rs are us ed p re d om i n at e ly i n D PA sys t em s
usi ng a front end DC /DC high p ower br ick (48 Vin to low
vo l ta ge bu s) . Th e n o n -i so la te d Ni Qo r c on v e rt e rs a re t h e n
used a t t he poi n t of load t o crea t e t h e low v olt a ge out p ut s
requ ired by t h e desi gn . T he wi de t ri m m odu le ca n b e pro -
gram m ed t o a v ari et y of ou t pu t v olt a ges t hr ough t he u se of
a single external resistor. RoHS compliant (see page 14 ).
Operational Features
• Ultra high efficiency, up to 94% at full rated load
• Delivers up to 16 Amps of output current with minimal
derating - no heatsink required
• Input Voltage Range : 6.0 - 16.0V
• Fast transient response time
• On-board input and output filter capacitor
• No minimum load requirement means no preload resis-
tors required
Non-Isolated
NiQor surface mount module
Pr otection Features
• Input under-voltage lockout disables converter at low
input voltage conditions
• Temperature compensated over-current shutdown pro-
tects converter from excessive load current or short cir-
cuits
• Output over-voltage protection protects load from dam-
aging voltages
• Thermal shutdown protects converter from abnormal
environmental conditions
Mechanical Features
• DOSA standard SMT pin-out configuration
• Industry standard size: 1.3” x 0.53” x 0.29”
(33 x
13.5 x 7.3 mm)
• Total weight: 0.18 oz.
(5 grams),
lower mass great-
ly reduces vibration and shock problems
• Open frame construction maximizes air flow cooling
• Also available in SIP packaging
Safety Features
• UL/cUL 60950-1 recognized (US & Canada)
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives which
facilitates CE Marking in user’s end product
• Board and plastic components meet UL94V-0 flammabil-
ity requirements
Contr ol Features
• Output voltage sequencing
• On/Off control
• Output voltage trim (industry standard) permits custom
voltages and voltage margining
• Remote Sense (standard option)
Product # NQ16W50SMA16
Phone 1-888-567-9596
* Final datasheet pending ECO review and signature.
Doc.# 005-2NS12WE Rev. A
2/20/07
Page 1
www.synqor.com
Technical Specification
MECHANICAL
DIAGRAM
Surface Mount Package
Input:
Outputs:
Current:
Package:
6.0 - 16.0V
0.75 - 5.0V
16A
SMT
1.30
(33.0)
0.288+.018
(7.32+0.45)
see Note 4
0.025
(0.64)
1
0.063
(1.60)
2
3
4
5
0.075
(1.91)
0.405
(10.29)
0.53
(13.5)
Typ.
6
0.297
(7.54)
7
0.012+.007
(0.3+0.17)
0.100
(2.54)
0.487
(12.37)
0.048
(1.22)
0.063
(1.6)
Bottomside
Clearance
Typ.
0.677
(17.20)
0.867
(22.02)
Side View
1.057
(26.85)
1.177
(29.90)
Bottom View
Recommended SMT Pad Size:
Minimum: 0.074” x 0.122” (1.88mm x 3.1mm)
Maximum: 0.095” x 0.140” (2.41mm x 3.56mm)
NOTES
1) SMT Contacts: Material - Brass
Finish - Gold over Nickel plate
2) Undimensioned components are shown for visual
reference only.
3) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
4) Coplanarity for pins 1-7 is 0.004” max
5) Weight: 0.18 oz. (5 g) typical
6) Workmanship: Meets or exceeds IPC-A-610C Class II
SMT CONTACT DESIGNATIONS
Pin No.
Name
Function
1
2
3
4
5
6
7
SEQ
GND
Vout(+)
TRIM
SENSE(+)
Vin(+)
ON/OFF
Sequencing
Ground
Positive output voltage
Output Voltage Trim
Positive remote sense
Positive input voltage
Input to turn converter on/off
Pins in Italics Shaded text are Optional
Product # NQ16W50SMA16
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2NS12WE Rev. A
2/20/07
Page 2
Technical Specification
Input:
Outputs:
Current:
Package:
6.0 - 16.0V
0.75 - 5.0V
16A
SMT
ELECTRICAL CHARACTERISTICS - NQ16W50SMA16 Series
Parameter
Module
All
All
All
All
All
All
All
All
All
All
All
All
All
0.75V
2.5V
5.0V
0.75V
2.5V
5.0V
All
All
All
0.75V
2.5V
5.0V
0.75V
All
All
All
All
All
All
1.0V
2.5V
5.0V
All
All
All
All
All
All
All
All
All
0.75V
2.5V
5.0V
0.75V
2.5V
5.0V
2
2
77.0
90.0
94.0
81.0
91.5
94.0
T
A
=25°C, airflow rate=300 LFM, V
in
=12Vdc unless otherwise noted; full operating temperature range is -40°C to +105°C ambient tem-
perature with appropriate power derating. Specifications subject to change without notice.
Min.
0
-40
-55
-3
6
100
0.75
0
5.35
4.50
5.73
4.73
1
Typ.
Max.
18
16
105
125
15
16
20
5.5
16
6.10
4.95
2.8
7.5
14.0
Units
V
V
°C
°C
V
V
A
µF
V
A
V
V
V
A
A
A
mA
mA
mA
mA
A
2
s
µF
mA
mA
mA
V
V
A
%
%
%
%
mV
mV
mV
A
µF
dB
mV
mV
µs
Notes & Conditions
Continuous
Continuous
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Operating Temperature
Storage Temperature
Voltage at ON/OFF input pin
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
Input Fuse Rating
External Input Capacitance
Output Voltage
Output Current
INPUT CHARACTERISTICS
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis
Maximum Input Current
“
“
No-Load Input Current
“
“
Disabled Input Current
Inrush Current Transient Rating
Input Filter Capacitor Value
Input Reflected-Ripple Current
“
“
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Range
Operating Output Current Range
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise (pk-pk\RMS)
“
“
Output DC Over Current Shutdown
External Output Capacitance
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection
Output Voltage during Current Transient
For a Step Change in Output Current (0.1A/µs)
For a Step Change in Output Current (3A/µs)
Settling Time
Turn on Transient
Inhibit Time
Rise Time
Output Voltage Overshoot
EFFICIENCY
100% Load
“
“
50% Load
“
“
Fast blow external fuse recommended
ESR<1.5
W
31
71
132
3
0.1
30
36
68
98
0.745
0.75
0
0.75
0.755
5.0
16
0.5
0.5
1
3
27\5.0
43\11.6
67\20.4
24
50
180
180
100
4
6
0
6Vin, 100% load
“
“
12Vin, 100% load
“
“
With min. output capacitance
12Vin, 100% load, pk-pk value
“
“
12Vin 50% load
Set output by Rtrim-up
With sense pin
“
“
With sense pin, over sample, line, load, temp. & life
Full load; 20MHz bandwidth
“
“
>0.5m
W
120Hz
50%-75%-50% Iout max; 100uF
50%-75%-50% Iout max; 470uF
To within 1.5% Vout nom.
Resistive load
“
“
20
100
28
5000
ms
ms
V
%
%
%
%
%
%
Product # NQ16W50SMA16
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2NS12WE Rev. A
2/20/07
Page 3
Technical Specification
Parameter
Module
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
275
1.5
-3.0
4.7
300
Input:
Outputs:
Current:
Package:
6.0 - 16.0V
0.75 - 5.0V
16A
SMT
ELECTRICAL CHARACTERISTICS (continued) - NQ16W50SMA16 Series
Min.
Typ.
Max.
125
125
325
6.5
0.6
5.3
Units
°C
°C
kHz
V
V
V
kW
kW
Notes & Conditions
Package rated to 150°C
UL rated max operating temp 130°C
Half on small duty cycle (e.g. 16Vin; 0.75Vout)
See Figure A
TEMP LIMITS FOR POWER DERATING
Semiconductor Junction Temperature
Board Temperature
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control
Negative Logic (N, O) ON/OFF Control
Off-State Voltage
On-State Voltage
Pull-Up Voltage (N logic only)
Pull-Up Resistance (N logic only)
Input Resistance (O logic only)
Positive Logic (P) ON/OFF Control
Logic Low Voltage Range
Logic High Voltage Range (internal pullup)
Logic Low Sink Current
Logic High Sink Current (leakage)
Output Voltage Trim Range
Output Over-Voltage Protection
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia)
Calculated MTBF (MIL-217)
Field Demonstrated MTBF
5
100
20
Open collector/drain input; see Figure A
-0.2
2.2
40
0.75
5.6
6.0
128
10
TBD
TBD
1.0
50
100
5.5
6.4
V
V
µA
µA
V
V
°C
°C
Measured Vout+ to common pins
Over full temp range
Average PCB Temperature
10
6
Hrs.
TR-NWT-000332; 100% load, 200LFM, 40oC Ta
10
6
Hrs.
MIL-HDBK-217F; 100% load, 200LFM, 40oC Ta
10
6
Hrs. See our website for details
STANDARDS COMPLIANCE
Parameter
P
STANDARDS COMPLIANCE
Notes
File # E194341
Certified by TUV
Test on entire assembly; board & plastic components UL94V-0 compliant
ESD test, 8kV - NP, 15kV air - NP (Normal Performance)
Section 7 - electrical safety, Section 9 - bonding/grounding
UL/cUL 60950-1
EN60950-1
72/23/EEC
93/68/EEC
Needle Flame Test (IEC 695-2-2)
IEC 61000-4-2
GR-1089-CORE
Telcordia (Bellcore) GR-513
• An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety
certificates on new releases or download from the SynQor website.
QUALIFICATION TESTING
Parameter
P
QUALIFICATION TESTING
# Units
32
5
5
10
5
5
5
15 pins
Test Conditions
10-55Hz sweep, 0.060” total excursion,1 min./sweep, 120 sweeps for 3 axis
Life Test
Vibration
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
Solderability
95% rated V
in
and load, units at derating point, 1000 hours
100g minimum, 2 drops in x and y axis, 1 drop in z axis
-40°C to 100°C, unit temp. ramp 15°C/min., 500 cycles
T
operating
= min to max, V
in
= min to max, full load, 100 cycles
T
min
-10°C to T
max
+10°C, 5°C steps, V
in
= min to max, 0-105% load
85°C, 85% RH, 1000 hours, continuous Vin applied except 5min./day
MIL-STD-883, method 2003
•
Extensive characterization testing of all SynQor products and manufacturing processes is performed to ensure that we supply
robust, reliable product. Contact the factory for official product family qualification documents.
OPTIONS
SynQor provides various options for Packaging, Enable Logic,
and Feature Set for this family of DC/DC converters. Please con-
sult the last page for information on available options.
PATENTS
SynQor is protected under various patents. Please consult the
last page for further details.
Product # NQ16W50SMA16
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2NS12WE Rev. A
2/20/07
Page 4
Technical Specification
100
95
90
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
2
4
6
8
10
12
14
16
0
2
4
Input:
Outputs:
Current:
Package:
6.0 - 16.0V
0.75 - 5.0V
16A
SMT
85
80
75
70
65
5.0 Vout
2.5 Vout
0.75 Vout
Power Dissipation (W)
Efficiency (%)
5.0 Vout
2.5 Vout
0.75 Vout
6
8
10
12
14
16
Load Current (A)
Load Current (A)
Figure 1:
Efficiency at nominal output voltage vs. load current for nom-
inal input voltage at 25
°
C.
Figure 2:
Power dissipation at nominal output voltage vs. load current
for nominal input voltage at 25
°
C.
18
16
14
12
Iout (A)
10
8
6
4
2
0
0
25
40
55
70
85
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
6 layers 2oz cu board
Semiconductor junction temperature is
within 1°C of surface temperature
Ambient Air Temperature (°C)
Figure 3:
Maximum output power derating curves for
0.75Vo, 1.2Vo,
1.5Vo
units under various thermal conditions and nominal input volt-
age. See Thermal Considerations section for more details.
18
16
14
12
Figure 4:
Thermal plot of
0.75Vo, 1.2Vo
converters at nominal Vin and
16 amp load current mounted on a 85
°
C, 6-Layer, 2 oz. copper board
(typical installation).
Iout (A)
10
8
6
4
2
0
0
25
40
55
70
85
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
6 layers 2oz cu board
Semiconductor junction temperature is
within 1°C of surface temperature
Ambient Air Temperature (°C)
Figure 5:
Maximum output power derating curves for
1.8Vo, 2.5Vo
units under various thermal conditions and nominal input voltage. See
Thermal Considerations section for more details.
Product # NQ16W50SMA16
Phone 1-888-567-9596
Figure 6:
Thermal plot of
1.8Vo, 2.5Vo
converters at nominal Vin and
16 amp load current mounted on a 70
°
C, 6-Layer, 2 oz. copper board
(typical installation).
Doc.# 005-2NS12WE Rev. A
2/20/07
Page 5
www.synqor.com
