Embedded Power for
Business-Critical Continuity
SMT20C Series
5 Vin and 12 Vin
single output
Rev.06.25.07
SMT20C
1 of 4
Total Power:
66W
Input Voltage: 4.5-5.5 Vdc
# of Outputs: Single
Special Features
• 20 A current rating
• Input voltage range:
4.5 Vdc - 5.5 Vdc or
10.2 Vdc - 13.8 Vdc
• Output voltage range:
0.9 Vdc - 3.3/5.0 Vdc
• Industry leading value
• Cost optimized design
• Excellent transient response
• Output voltage adjustability
• Pathway for future
upgrades
• Supports silicon voltage
migration
• Resulting in reduced
design-in and qualification
time
• Designed in reliability:
MTBF of >7 million hours
per Telcordia SR-332
• Available RoHS compliant
• 2 year warranty
The SMT20C Series is a new high density open frame non-isolated
converter for space-sensitive applications. Each model has a wide
input range (4.5 Vdc to 5.5 Vdc or 10.2 Vdc to 13.8 Vdc) and
offers a wide 0.9 Vdc to 3.3/5 V output voltage range with a 20 A
load. An external resistor adjusts the output voltage from its
pre-set value of 0.9 V to any value up to the maximum allowed
value for that model. Typical efficiencies are 87% for the 5 V input
version and 91% for the 12 V input version at full load conditions.
The SMT20C series offers remote ON/OFF and overcurrent
protection as standard. With full international safety approval
including EN60950 and UL/cUL60950, the SMT20C reduces
compliance costs and time to market
Safety
UL/cUL CAN/CSA 22.2
No. 60950
UL 60950 File No. E139421
TÜV Product Service
(EN60950:2000)
Certificate No.
B 04 08 19870 228
CB report and certificate to
US/6415C/UL
Embedded Power for
Business-Critical Continuity
Specifications
All specifications are typical at nominal input Vin=12V, full load at 25
°
C unless otherwise stated.
Rev.06.25.07
SMT20C
2 of 4
OUTPUT SPECIFICATIONS
Voltage adjustability
(See Note 5)
5 V input models
12 V input models
0.9-3.3 Vdc
0.9-5.0 Vdc
±2.5%
±0.2% max.
±1.3% max.
0 A/20 A
5 V input models
12 V input models
(See Note 1)
3.0% max.
1.0% max.
See Table on page 2
100 mV max. deviation
200 μs recovery to
within regulation band
INPUT SPECIFICATIONS (CONTD.)
Turn ON threshold
Turn OFF threshold
5 Vin
12 Vin
5 Vin
12 Vin
4.5 Vdc typ.
9.3 Vdc typ.
4.3 Vdc typ.
7.8 Vdc typ.
Output setpoint accuracy With 1.0% trim resistors
Line regulation
Load regulation
Min/max load
Overshoot
(at turn on)
Ripple and noise
5 Hz to 20 MHz
Transient response
(See Note 2)
Low line to high line
GENERAL SPECIFICATIONS
Efficiency
Switching frequency
Approvals and
standards
Material flammability
Weight
Coplanarity
MTBF
Telcordia SR-332
Fixed
(See Note 7)
See Table on page 2
275 kHz typ.
TÜV Product Services
IEC60950, UL/cUL60950
UL94V-0
14.2 g (0.5 oz)
150 μm
7,963,574 hours
INPUT SPECIFICATIONS
Input voltage range
Input current
Input current (max.)
(See Note 3)
Input reflected ripple
Remote ON/OFF
Logic compatibility
ON
OFF
Start-up time
(See Note 8)
Power up
Remote ON/OFF
5 V input model
12 V input model
Minimum load
Remote OFF
5 V input model
12 V input model
(See Note 4)
4.5-5.5 Vdc
10.2-13.8 Vdc
65 mA
20 mA
15 A @ lo max.
11 A @ lo max.
200 mA (pk-pk)
Positive Logic
>2.4 Vdc
<0.8 Vdc
<20 ms
<20 ms
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Note 9)
Operating ambient,
temperature
Non-operating
0 °C to +80 °C
-40 °C to +125 °C
PROTECTION
Short-circuit protection
RECOMMENDED SYSTEM CAPACITANCE
Input capacitance
Output capacitance
(See Note 10)
(See Note 10)
270 μF/20 mW ESR max.
680 μF/10 mW ESR max.
Hiccup, non-latching
Embedded Power for
Business-Critical Continuity
Specifications
All specifications are typical at nominal input Vin = 12 V, full load at 25
°
C unless otherwise stated.
Rev.06.25.07
SMT20C
3 of 4
OUTPUT
POWER
(MAX.)
66 W
100 W
INPUT
VOLTAGE
4.5-5.5 Vdc
10.2-13.8 Vdc
OVP
N/A
N/A
OUTPUT
VOLTAGE
(11)
0.9-3.3 V
0.9-5.0 V
OUTPUT
CURRENT
(MIN.)
0A
0A
OUTPUT
CURRENT
(MAX.)
20 A
20 A
MAXIMUM
LOAD
(TYP.)
87%
91%
REGULATION
LINE
±0.2%
±0.2%
LOAD
±1.3%
±1.3%
MODEL
NUMBER
(12,13)
SMT20C-05SADJJ
SMT20C-12SADJJ
Part Number System with Options
SMT20C-12SADJJ
Packaging Options
(12)
J = Pb-free (RoHS 6/6 compliant)
Product Family
SMT = Surface Mount
Rated Output Current
20 = 20 A
Performance
C = Cost Optimized
Number of Outputs
SADJ = Single Adjustable Output
Input Voltage
05 = 4.5 Vdc to 5.5 Vdc
12 = 10.2 Vdc to 13.8 Vdc
Output Voltage Adjustment of the SMT20C Series
The ultra-wide output voltage trim range offers major advantages to users who
select the SMT20C series. It is no longer necessary to purchase a variety of
modules in order to cover different output voltages. The output voltage can be
trimmed in a range of 0.9 Vdc to 5.0 Vdc. When the SMT20C series converter
leaves the factory the output has been adjusted to the default voltage of 0.9 V.
Notes
1
2
3
4
5
6
7
8
9
10
11
12
13
Measured as per recommended set-up. 2 x Cin = 270 μF (20 mW ESR max,
Cout = 680 μF (10 mW ESR max).
di/dt = 10 A/μs, Vin = Nom, Tc = 25 °C, load change = 0.50 lo max. to 0.75 lo
max. and 0.75 lo max. to 0.50 lo max. At 12 V, 0.9 Vout, the max voltage
deviation is 200 mV.
External input fusing is recommended.
Measured with external filter. See Application Note 169 for details.
Uses external resistor from trim pin to output ground. Min value = 485 W for
5 V model, 280 W for 12 V model. See Application Note 169 for details.
Signal line assumed <3 m in length.
This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
Power-up is the time from application of dc input to Power Good enabled.
Remote ON/OFF is from ON/OFF asserted high to power good enabled.
See Application Note 169 for operation above 50 °C.
See Application Note 169 for ripple current requirements.
These models have a wide trim output. 5 Vin has an output of 0.9Vdc to 3.3
Vdc and 12 Vin has an output of 0.9 Vdc to 5 Vdc. An external resistor adjusts
the output voltage.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special
request, please contact your local sales representative for details.
NOTICE: Some models do not support all options. Please contact your local
Artesyn representative or use the on-line model number search tool at
http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.
Ripple and Noise Specification
Model
5 V input models
12 V input models
Output
Voltage
0.9 Vdc to 2.5 Vdc
3.3 Vdc
0.9 Vdc to 2.5 Vdc
3.3 Vdc to 5 Vdc
Pk - Pk
30 mV
40 mV
50 mV
50 mV
RMS
15 mV
15 mV
25 mV
25 mV
Embedded Power for
Business-Critical Continuity
Rev.06.25.07
SMT20C
4 of 4
Americas
1.20
(30.5)
PIN 7
0.084
(2.14)
0.901
(22.88)
PIN 8
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Europe (UK)
1.010
(25.65)
1.10
(27.9)
1.14
(29.0)
ID LABEL
LOCATION
PIN 1
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
0.956
(24.27)
0.48 max.
(12.2)
0.13
(3.3)
0.054
(1.38)
0.150
(3.81)
PIN 6
0.795
(20.19)
0.940
(23.88)
3X 0.145
(3.68)
Asia (HK)
16th - 17th Floors, Lu Plaza
2 Wing Yip Street, Kwun Tong
Kowloon, Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
0.457 (11.61)
Installed Ht.
0.062
(1.57) REF
0.290
(7.37 max)
For global contact, visit:
8 X
0.105
(2.67)
www.powerconversion.com
Seating Plane
0.011
(0.27) TYP
technicalsupport@powerconversion.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
All dimensions in inches (mm)
All tolerance
±0.010in
(±0.25mm)
unless otherwise stated
PIN CONNECTIONS
PIN NUMBER
1
2
3
4
5
6
7
8
FUNCTION
Vout
Vout
Power Good
GND
GND
Vin
Trim
Remote ON/OFF
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