2 YEAR WARRANTY
SMT20C Series
5 V i n a n d 1 2 V i n s i n g l e o u t p u t
All specifications are typical at nominal input Vin = 12 V, full load at 25 C unless otherwise stated
SPECIFICATIONS
File Name: smt20c.pdf Rev (03): 15 Dec 2005
DC-DC CONVERTERS
C Class Non-isolated
1
20 A current rating
Input voltage range: 4.5 Vdc to 5.5 Vdc or 10.2 Vdc to 13.8 Vdc
Output voltage range: 0.9 Vdc to 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
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.
NEW Product
OUTPUT SPECIFICATIONS
Voltage adjustability
5 V input models
0.9-3.3 Vdc
(See Note 5)
12 V input models
0.9-5.0 Vdc
Output setpoint accuracy With 1.0% trim resistors
2.5%
Line regulation
Low line to high line
0.2% max.
Load regulation
1.3% max.
Min/max load
0 A/20 A
Overshoot
5 V input models
3.0% max.
(at turn on)
12 V input models
1.0% max.
Ripple and noise
(See Note 1)
See Table on page 2
5 Hz to 20 MHz
Transient response
100 mV max. deviation
(See Note 2)
200 s recovery to
within regulation band
INPUT SPECIFICATIONS
Input voltage range
5 V input model
4.5-5.5 Vdc
12 V input model
10.2-13.8 Vdc
Input current
Minimum load
65 mA
Remote OFF
20 mA
Input current (max.)
5 V input model
15 A @ lo max.
(See Note 3)
12 V input model
11 A @ lo max.
Input reflected ripple
(See Note 4)
200 mA (pk-pk)
Remote ON/OFF
Logic compatibility
Positive Logic
ON
>2.4 Vdc
OFF
<0.8 Vdc
Start-up time
Power up
<20 ms
(See Note 8)
Remote ON/OFF
<20 ms
INPUT SPECIFICATIONS (CONTD.)
Turn ON threshold
5 Vin
4.5 Vdc typ.
12 Vin
9.3 Vdc typ.
Turn OFF threshold
5 Vin
4.3 Vdc typ.
12 Vin
7.8 Vdc typ.
GENERAL SPECIFICATIONS
Efficiency
See Table on page 2
Switching frequency
Fixed
275 kHz typ.
Approvals and
(See Note 7)
TV Product Services
standards
IEC60950, UL/cUL60950
Material flammability
UL94V-0
Weight
14.2 g (0.5 oz)
Coplanarity
150 m
MTBF
Telcordia SR-332
7,963,574 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient,
0 C to +80 C
(See Note 9)
temperature
Non-operating
-40 C to +125 C
PROTECTION
Short-circuit protection
Hiccup, non-latching
RECOMMENDED SYSTEM CAPACITANCE
Input capacitance
(See Note 10) 270 F/20 m
ESR max.
Output capacitance
(See Note 10) 680 F/10 m
ESR max.
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
SMT20C Series
5 V i n a n d 1 2 V i n s i n g l e o u t p u t
DC-DC CONVERTERS
C Class Non-isolated
2
NEW Product
File Name: smt20c.pdf Rev (03): 15 Dec 2005
N
No
otte
es
s
1
Measured as per recommended set-up. 2 x Cin = 270 F (20 m
ESR max, Cout = 680 F (10 m
ESR max).
2
di/dt = 10 A/s, 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.
3
External input fusing is recommended.
4
Measured with external filter. See Application Note 169 for details.
5
Uses external resistor from trim pin to output ground. Min value =
485
for 5 V model, 280
for 12 V model. See Application Note
169 for details.
6
Signal line assumed <3 m in length.
7
This product is only for inclusion by professional installers within
other equipment and must not be operated as a stand alone
product.
8
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.
9
See Application Note 169 for operation above 50 C.
10
See Application Note 169 for ripple current requirements.
11
These models have a wide trim output. 5 Vin has an output of
0.9 Vdc to 3.3 Vdc and 12 Vin has an output of 0.9 Vdc to 5 Vdc. An
external resistor adjusts the output voltage.
12
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for
details.
13
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.
OUTPUT
INPUT
OVP
OUTPUT
OUTPUT
OUTPUT
MAXIMUM
REGULATION
MODEL
POWER
VOLTAGE
VOLTAGE
(11)
CURRENT
CURRENT
LOAD
LINE
LOAD
NUMBER
(12,13)
(MAX.)
(MIN.)
(MAX.)
(TYP.)
66 W
4.5-5.5 Vdc
N/A
0.9-3.3 V
0 A
20 A
87%
0.2%
1.3%
SMT20C-05SADJJ
100 W
10.2-13.8 Vdc
N/A
0.9-5.0 V
0 A
20 A
91%
0.2%
1.3%
SMT20C-12SADJJ
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950
UL 60950 File No. E139421
TV Product Service (EN60950:2000)
Certificate No. B 04 08 19870 228
CB report and certificate to US/6415C/UL
S M T 2 0 C - 1 2 S A D J J
Part Number System with Options
Number of Outputs
SADJ = Single Adjustable Output
Product Family
SMT = Surface Mount
Performance
C = Cost Optimized
Input Voltage
05 = 4.5 Vdc to 5.5 Vdc
12 = 10.2 Vdc to 13.8 Vdc
Packaging Options
(12)
J = Pb-free (RoHS 6/6 compliant)
Rated Output Current
20 = 20 A
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.
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Output
Model
Voltage
Pk - Pk
RMS
5 V input models 0.9 Vdc to 2.5 Vdc
30 mV
15 mV
3.3 Vdc
40 mV
15 mV
12 V input models 0.9 Vdc to 2.5 Vdc
40 mV
25 mV
3.3 Vdc to 5 Vdc
50 mV
25 mV
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
SMT20C Series
5 V i n a n d 1 2 V i n s i n g l e o u t p u t
DC-DC CONVERTERS
C Class Non-isolated
3
NEW Product
Datasheet Artesyn Technologies 2005
The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising
from printing errors or inaccuracies. The information and specifications contained or described herein are subject to change in any manner at any time without notice. No rights under any patent
accompany the sale of any such product(s) or information contained herein.
Please consult our website for the following items:
Application Note
Longform Datasheet
www.artesyn.com
File Name: smt20c.pdf Rev (03): 15 Dec 2005
All dimensions in inches (mm)
All tolerance
0.010in (0.25mm)
unless otherwise stated
0.062
(1.57) REF
8 X
0.105
(2.67)
0.290
(7.37 max)
ID LABEL
LOCATION
1.10
(27.9)
1.14
(29.0)
0.48 max.
(12.2)
0.13
(3.3)
1.20
(30.5)
0.011
(0.27) TYP
0.901
(22.88)
1.010
(25.65)
3X
PIN 7
PIN 8
PIN 1
PIN 6
0.084
(2.14)
0.956
(24.27)
0.150
(3.81)
0.054
(1.38)
0.940
(23.88)
0.795
(20.19)
0.145
(3.68)
Seating Plane
0.457 (11.61)
Installed Ht.
PIN CONNECTIONS
PIN NUMBER
FUNCTION
1
Vout
2
Vout
3
Power Good
4
GND
5
GND
6
Vin
7
Trim
8
Remote ON/OFF
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