3.3 Vin and 5 Vin single output
DC-DC CONVERTERS
F Class Non-isolated
NEW Product
1
•
Designed to meet ultra fast transient requirements
up to 300 A/µs step load transients
•
12 A current rating
•
Input voltage range: 2.97 Vdc to 5.5 Vdc
•
Output voltage range: 0.9 Vdc to 3.3 Vdc
•
Extremely low internal power dissipation
•
Minimal thermal design concerns
•
Ideal solution where board space is at a premium
or tighter card pitch is required
•
Available
RoHS compliant
The SMT12F series is a new range of ultra-compact non-isolated point-of-load converters for
space-critical applications. The new SMT12F Typhoon™ family surface-mount converter has a
footprint of just 13.5 x 16 mm - and unlike competitive products on the market, requires only
the addition of a small number of ceramic output capacitors to realise a complete high-
performance point-of-load (POL) solution. The SMT12F is primarily intended for use on very
densely packed, high functionality boards and for powering advanced silicon including network
and communication processors, DSPs, FPGAs and ASICs. A key advantage of the SMT12F is
that it only needs the addition of five 22 µF ceramic output capacitors to provide a complete
full-specification, high efficiency POL solution with transient response capabilities that extend
up to 300 A/µs. The total board space required for the module and capacitors is a mere 300
mm
2
, facilitating easy co-location with the load.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
External output capacitance required (See Note 4)
OUTPUT SPECIFICATIONS
Voltage adjustability
Wide trim (See Note 6)
Setpoint accuracy
Line regulation
Load regulation
Total error band
Minimum load
Overshoot/undershoot
Ripple and noise
(See Note 5)
Temperature co-efficient
Transient response
(Vout = 3.3 V)
di/dt 300 A/µs
5 Hz to 20 MHz
5.0 Vin
3.3 Vin
0.9-3.3 Vdc
0.9-2.6 Vdc
±0.5% typ.
±1.0% typ.
±1.0% typ.
±3.0% typ.
0 A
None
40 mV pk-pk
25 mV rms
±0.01%/ºC
12 A load step
100 mV deviation
<15 µs settling time to
within ±1.0%
10% Vo compensation
Insulation voltage
Switching frequency
Approvals and
standards
Material flammability
Dimensions
Weight
Coplanarity
MTBF
INPUT SPECIFICATIONS
Input voltage range
(See Note 6)
Input current
Input current (max.)
Input reflected ripple
Remote ON/OFF
Start-up time
5 Vin
3.3 Vin
No load
3.0-5.5 Vdc
2.97-3.63 Vdc
100 mA
8.5 A max. @ Io max.
and Vout = 3.3 V
100 mA rms
(See Note 1)
15 ms
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Note 2)
Operating ambient,
temperature
Non-operating
-40 ºC to +85 ºC
-40 ºC to +125 ºC
Telcordia SR-332
(LxWxH)
EMC CHARACTERISTICS
Electrostatic discharge
Conducted immunity
Radiated immunity
EN61000-4-2, IEC801-2
EN61000-4-6
EN61000-4-3
SMT12F Series
2 YEAR WARRANTY
SPECIFICATIONS
GENERAL SPECIFICATIONS
Efficiency
5 Vin
3.3 Vin
95% typ.
92% typ.
Non-isolated
600 kHz
EN60950
UL/cUL60950
UL94V-0
16.00 x 13.46 x 7.93 mm
0.63 x 0.52 x 0.31 inches
3 g (0.11 oz)
100 µm
10,000,000 hours
Remote sense
PROTECTION
Short-circuit
Thermal
Continuous
Automatic recovery
File Name: smt12f_05.pdf Rev (03): 16 Dec 2005
3.3 Vin and 5 Vin single output
DC-DC CONVERTERS
F Class Non-isolated
NEW Product
2
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
OUTPUT
POWER
(MAX.)
31.2 W
39.6 W
OUTPUT
CURRENT
(MIN.)
0A
0A
OUTPUT
CURRENT
(MAX.)
12 A
12 A
SMT12F Series
OUTPUT
VOLTAGE
0.9-2.6 Vdc
0.9-3.3 Vdc
EFFICIENCY
(TYP.)
92%
95%
INPUT
VOLTAGE
2.97-3.63 Vdc
3.0-5.5 Vdc
REGULATION
LINE
±1.0%
±1.0%
LOAD
±1.0%
±1.0%
MODEL
NUMBER
(7, 8)
SMT12F-03W2V6J
SMT12F-05W3V3J
Part Number System with Options
SMT12F-05W3V3J
s
Packaging Options
(7)
J = Pb-free (RoHS 6/6 compliant)
Output Voltage
2V6 = 0.9 Vdc to 2.6 Vdc
3V3 = 0.9 Vdc to 3.3 Vdc
Type of Output
S = Single Fixed
W = Wide
Input Voltage
03 = 2.97 Vdc to 3.63 Vdc
05 = 3.0 Vdc to 5.5 Vdc
Output Voltage Adjustment of the SMT12F Series
Product Family
SMT = Surface Mount
Rated Output Current
12 = 12 Amps
Performance
F = Enhanced/Fast Transient
The ultra-wide output voltage trim range offers major advantages to users who select the
SMT12F. 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
2.6 Vdc or 0.9 Vdc to 3.3 Vdc. When the SMT12F-05W3V3J converter leaves the factory
the output has been adjusted to the default voltage of 3.3 V. When the SMT12F-03W2V6J
converter leaves the factory the output has been adjusted to the default voltage of 2.6 V.
V
in
4.5-5.5 Vdc
< 4.5 Vdc
V
out
0.9-3.3 Vdc
0.9-2.0 Vdc
Unit
05W3V3J
05W3V3J
03W2V6J
2.97-3.63 Vdc 0.9-2.6 Vdc
Notes
1
The SMT12F features an ‘Active Low’ Remote ON/OFF operation. If you
are not using the Remote ON/OFF pin, leave the pin open (the converter
will be on). The Remote ON/OFF pin is referenced to ground.
The following conditions apply for the SMT12F:
Configuration
Remote pin open circuit
Remote pin pulled low
Remote pin pulled high
Converter Operation
Unit is ON
Unit is ON
Unit is OFF
5
6
7
8
3
4
A 22 µF ceramic input capacitor may be required for test purposes only.
See Application Note 165 for further details.
An external output capacitor is required for basic operation. Required
capacitance is a minimum of 110 µF to meet the performance
parameters. This can be made up of any combination of 22 µF or 44 µF
multi-layer ceramic capacitors in the appropriate voltage rating.
Ripple and Noise is worst case measurement. Typical value is 26 mV pk-
pk.
When Vin <4.5 V, Vout max = 2.5 V for model SMT12F-03W2V6.
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.
2
An ‘Active High’ Remote ON/OFF version is also possible with this
converter. To order please place the suffix ‘R’ towards the end of the part
number, e.g. SMT12F-05W3V3RJ.
See Figures 1 and 2 for sample derating curves. For the full set of
derating curves see Application Note 165.
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. E174104
UL 60950 File No. E174104
TÜV Product Service (EN60950) Certificate No. B 04 04 38572 041.
CB Report and Certificate to IEC60950 DE3-52484
File Name: smt12f_05.pdf Rev (03): 16 Dec 2005
3.3 Vin and 5 Vin single output
DC-DC CONVERTERS
F Class Non-isolated
NEW Product
3
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
SMT12F Series
OUTPUT CURRENT (A)
14
12
10
8
6
4
2
0
0
10
20
30 40
50 60
70
80
90
TEMPERATURE (ºC)
Figure 1 - Derating Curve
Vin = 5 V, Output Voltage = 1.8 V (See Note A)
Nat conv
200 LFM
400 LFM
14
OUTPUT CURRENT (A)
12
10
8
6
4
2
0
0
10
20
30
40
50
60
70
80
Nat conv
200 LFM
400 LFM
AMBIENT TEMPERATURE (ºC)
Figure 2 -
Derating Curve
Vin = 5 V, Output Voltage = 1.5 V (See Note A)
Margin Up
Margin Down
10
Power Good
4
Remote ON/OFF
3
2
7
5
V
out
+V
sense
SMT12F
V
in
C
out
= 110µF
9
8
1
6
(See note C)
R
L
O
A
D
R
trim
(for trim
down)
-V
sense
GND
Figure 3 - Typical Transient Response (source)
12 A load Step di/dt = 300 A/µs
Channel 1: Deviation on unit = 2.3%, Settling Time = 16 µs
Vin = 5 V, Vout = 1.5 V
Figure 4 - Standard Application Drawing
Notes
A
Derating curves represent the conditions at which internal components
are within the Artesyn derating guidelines.
B
Vin = 5 V, Vout = 1.5 V.
File Name: smt12f_05.pdf Rev (03): 16 Dec 2005
3.3 Vin and 5 Vin single output
DC-DC CONVERTERS
F Class Non-isolated
NEW Product
4
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
SMT12F Series
0.098 [2.48]
0.520±0.010
[13.46±0.25]
TOP VIEW
0.340 [8.64]
0.630±0.010
[16.00±0.25]
7
8
9
0.580 [14.73]
0.250 [6.35]
10
0.455 [11.56]
0.470 [11.94]
BOTTOM VIEW
6 5 4 3 2 1
0.065 [1.65]
0.000 [0.00]
0.312 [7.93] MAX.
INSTALLED HT.
SIDE VIEW
0.050 [1.26]
0.103 [2.60]
0.188 [4.76]
0.273 [6.92]
0.358 [9.08]
0.443 [11.24]
0.528 [13.40]
Dimensions in Inches (mm)
Tolerances (unless otherwise specified)
±0.005
(±0.127)
SEATING
PLANE
Figure 5 - Mechanical Drawing
Pin No. Pin Description
1
Trim:
A 1% 0.1 W resistor must be directly connected between
this pin and pin 8 (GND) to set the output voltage to a lower value
than 3.3 V. The temperature stability of the resistor should be 100
ppm/°C or better. The set point range for the 3.3 V model is from
3.3 V to 0.9 V. The resistor required for a given output voltage may
be calculated from the following formula.
Pin No. Pin Description
3
Remote ON/OFF:
Applying a high level signal to this input
disables the module’s output and turns off the output voltage.
When the Remote ON/OFF control is active, the input current
drawn by the regulator is significantly reduced. If the Remote
ON/OFF pin is left open-circuit, the module will produce an output
whenever a valid input source is applied.
Margin-:
When this input is asserted high, the output voltage is
decreased by 5% from the nominal. This functions is independant
of trim and sense.
V sense +:
The sense input allows the regulation circuit to
compensate for voltage drop between the module and the load.
For optimal voltage accuracy Vo Sense should be connected to
Vout node of bypass capacitor. It can also be left disconnected.
V sense -:
The VSense should be connected to the ground of a
bypass capacitor near the load or left open circuit.
+Vout:
The regulated positive power output with respect to the
GND node.
Ground:
This is the common ground connection for the Vin and
Vout power connections. It is also the 0 Vdc reference for the
control inputs.
+Vin:
The positive input voltage power node to the module,which
is referenced to common GND.
Power Good:
This pin indicates the status of the output voltage.
Power Good is driven low if output voltage deviates outside of
specified limits.
4
5
If left open circuit the output voltage will default to 3.3 V.
The set point range for the 2.6 V model is from 2.6-0.9 V. The
resistor required for a given output voltage may be calculated from
the following formula
6
7
8
2
If left open circuit the output voltage will default to 2.6 V.
For further information on output voltage adjustment consult the
Application Note 165.
Margin+:
When this input is asserted to High, the output voltage
is increased by 5%. This function is independant of trim and
sense.
9
10
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
0.000 [0.00]
www.artesyn.com
File Name: smt12f_05.pdf Rev (03): 16 Dec 2005
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