ETC FGSR12SR6003A

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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
The Tomodachi Series of non-isolated dc-dc
converters deliver exceptional electrical and thermal
performance in DOSA based footprints for
Point-of-Load converters. Operating from a
3.0Vdc-14.4Vdc input, these are the converters of
choice for Intermediate Bus Architecture (IBA) and
Distributed Power Architecture applications that
require high efficiency, tight regulation, and high
reliability in elevated temperature environments with
low airflow. The Tunable Loop™ feature allows the
user to optimize the dynamic response of the
converter to match the load with reduced amount of
output capacitance leading to savings on cost and
PWB area.
TBD
The FGSR12SR6003*A converter of the Tomodachi
Series delivers 3A of output current at a tightly
regulated programmable output voltage of 0.6Vdc to
5.5Vdc. The thermal performance of the
FGSR12SR6003*A is best-in-class: No derating is
needed up to 85℃, under natural convection.
Applications
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Intermediate Bus Architecture
Telecommunications
Data/Voice processing
Distributed Power Architecture
Computing (Servers, Workstations)
Test Equipment
Features
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Compliant to RoHS EU Directive 2011/65/EU
Delivers up to 3A (16.5W)
High efficiency, no heatsink required
Negative and Positive ON/OFF logic
DOSA based
Small size: 12.2 x 12.2 x 6.25mm
(0.48 in x 0.48 in x 0.246 in)
Tape & reel packaging
Programmable output voltage from 0.6V to 5.5V
via external resistor
Tunable Loop™ to optimize dynamic output
voltage response
Power Good signal
Fixed switching frequency
Output over-current protection (non-latching)
Over temperature protection
Remote ON/OFF
Ability to sink and source current
No minimum load required
Start up into pre-biased output
UL* 60950-1 2nd Ed. Recognized, CSA† C22.2 No.
60950-1-07 Certified, and VDE‡ (EN60950-1 2nd
Ed.) Licensed (Pending)
ISO** 9001 and ISO 14001 certified
manufacturing facilities
* UL is a registered trademark of Underwriters Laboratories, Inc.
†
CSA is a registered trademark of Canadian Standards Association.
‡
VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings may lead to degradation in performance and reliability of
the converter and may result in permanent damage.
PARAMETER
NOTES
MIN
TYP
MAX
UNITS
ABSOLUTE MAXIMUM RATINGS1
Input Voltage
Continuous
-0.3
15
Vdc
Operating Temperature
Ambient temperature
-40
85
°C
Storage Temperature
-55
125
°C
Output Voltage
0.6
5.5
Vdc
Electrical Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise
noted.
PARAMETER
NOTES
MIN
TYP
MAX
UNITS
14.4
Vdc
2.4
Adc
INPUT CHARACTERISTICS
Operating Input Voltage Range
3.0
Maximum Input Current
Vin=4.5V to 14V, Io=Max
Input No Load Current, Vin=12V
Vout=5.0V
38
mA
Vout=0.6V
17
mA
Vin=12V, module disabled
0.8
mA
Input Stand-by Current
2
Inrush Transient, I t
Input Reflected-Ripple Current
1
Peak-to-peak (5Hz to 20MHz, 1uH
source impedance; Vin=0 to 14V, Io=3A
Input Ripple Rejection (120Hz)
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A2s
15
mAp-p
-60
dB
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Electrical Specifications (Continued)
PARAMETER
NOTES
MIN
Output Voltage Set Point (no load)
With 0.1% tolerance for external resistor
used to set output voltage
Output Voltage Range
Adjustment Range
(selected by an external resistor)
TYP
MAX
UNITS
-1.0
+1.0
%Vout
(Over all operating input voltage,
resistive load and temperature
conditions until end of life)
-3.0
+3.0
%Vout
Some output voltages may not be
possible depending on the input voltage
– see feature description section
0.6
5.5
Vdc
0.5
Vdc
Line (Vin = min to max)
0.4
%Vout
Load (Io = min to max)
10
mV
Line (Vin = min to max)
5
mV
Load (Io = min to max)
10
mV
Temperature (Ta = min to max)
0.4
%Vout
OUTPUT CHARACTERISTICS
Remote Sense Range
Output Regulation (for Vo ≥ 2.5Vdc)
Output Regulation (for Vo < 2.5Vdc)
Vin=12V, Io= min to max, Co =
0.1uF+22uF ceramic capacitors
Output Ripple and Noise
Peak to Peak
RMS
External Load Capacitance
1
5MHz to 20MHz bandwidth
50
100
mVp-p
5MHz to 20MHz bandwidth
20
38
mVrms
Plus full load (resistive)
%
Without the Tunable Loop
ESR ≥ 1mΩ
10
22
uF
With the Tunable Loop
ESR ≥ 0.15mΩ
10
1,000
uF
ESR ≥ 10mΩ
10
3,000
uF
Output Current Range
(in either sink or source mode)
0
3
Adc
Output Current Limit Inception (Hiccup mode)
Current limit does not operate in sink
mode
200
% Io-max
Output Short-Circuit Current
Vo ≤ 250mV, Hiccup mode
0.5
Arms
Vout=5.0Vdc
93.9
%
Vout=3.3Vdc
91.6
%
Vout=2.5Vdc
89.9
%
Vout=1.8Vdc
88.2
%
Vout=1.2Vdc
82.8
%
Vout=0.6Vdc
75.0
%
600
kHz
Efficiency
Vin = 12Vdc, Ta = 25°C, Io = max
Switching Frequency
1
External capacitors may require using the new Tunable Loop
TM
transient response. See the Tunable Loop section for details.
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TM
feature to ensure that the module is stable as well as getting the best
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
General Specifications
PARAMETER
Calculated MTBF
NOTES
MIN
Io = 0.8 Io-max, Ta = 40°C
Telecordia Issue 2 Method 1 Case 3
Weight
TYP
MAX
UNITS
19,508,839
Hours
0.89(0.031)
g (oz.)
Feature Specifications
PARAMETER
ON/OFF Signal Interface
NOTES
MIN
TYP
MAX
UNITS
1
mA
Vin-max
Vdc
10
uA
0.3
Vdc
1
mA
Vin-max
Vdc
10
uA
0.4
Vdc
Vin = min to max, open collector or
equivalent, Signal reference to GND
Positive Logic
Logic High (Module ON)
Input High Current
Input High Voltage
3.0
Logic Low (Module OFF)
Input Low Current
Input Low Voltage
Negative Logic
-0.2
On/Off pin is open collector/drain logic
input with external pull-up resistor;
signal reference to GND
Logic High (Module OFF)
Input High Current
Input High Voltage
3.0
Logic Low (Module ON)
Input Low Current
Input Low Voltage
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-0.2
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Feature Specifications (Continued)
PARAMETER
Turn-On Delay Time
NOTES
MIN
TYP
MAX
UNITS
Full resistive load
with Vin (module enabled, then Vin applied)
From Vin=Vin(min) to 0.1*Vout(nom)
4
ms
with Enable (Vin applied, then enabled)
From enable to 0.1*Vout(nom)
4.8
ms
Rise Time (Full resistive load)
From 0.1*Vout(nom) to 0.9*Vout(nom)
2.8
ms
Output Voltage Overshoot
Ta = 25C, Vin = min to max, Iout = min
to max, with or without external
capacitance
Over Temperature Protection
(See Thermal Considerations section)
3.0
135
%Vout
°C
Input Under Voltage Lockout
Turn-on Threshold
3.0
Vdc
Turn-off Threshold
2.69
Vdc
Hysteresis
0.2
Vdc
Overvoltage threshold for PGOOD
112.5
%Vout
Undervoltage threshold for PGOOD
87.5
%Vout
Pulldown resistance of PGOOD pin
30

Power Good
Sink current capability into PGOOD pin
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Design Considerations
Input Filtering
The FGSR12SR6003*A converter should be
connected to a low ac-impedance source. A highly
inductive source can affect the stability of the module.
An input capacitance must be placed directly
adjacent to the input pin of the module, to minimize
input ripple voltage and ensure module stability.
To minimize input voltage ripple, ceramic capacitors
are recommended at the input of the module. Fig-1
shows the input ripple voltage for various output
voltages at 3A of load current with 1x22uF or 2x22uF
ceramic capacitors and an input of 12V.
load current of 3A. For stable operation of the
module, limit the capacitance to less than the
maximum output capacitance as specified in the
electrical specification table. Optimal performance of
the module can be achieved by using the Tunable
Loop™ feature described later in this data sheet.
70
60
)
p
- 50
p
V40
m
(
e
l 30
p
p
i 20
R
10
1x10uF Ext
1x22uF Ext
1x47uF Ext
2x47uF Ext
0
0.5
110
1x22uF
100
2x22uF
Cap
Cap
Cap
Cap
1.5
2.5
3.5
Output Voltage(Volts)
4.5
5.5
Fig-2: Output ripple voltage for various output
voltages with external 1x10uF, 1x22uF, 1x47uF
or 2x47uF ceramic capacitors at the output (3A
load). Input voltage is 12V.
90
)
p
- 80
p
V
70
m
(
le 60
p
p
i 50
R
40
Safety Consideration
30
20
0.5
1.5
2.5
3.5
4.5
Output Voltage(Volts)
Fig-1: Input ripple voltage for various output
voltages with 1x22uF or 2x22uF ceramic
capacitors at the input (3A load). Input voltage is
12V.
Output Filtering
The FGSR12SR6003*A is designed for low output
ripple voltage and will meet the maximum output
ripple specification with 0.1uF ceramic and 10uF
ceramic capacitors at the output of the module.
However, additional output filtering may be required
by the system designer for a number of reasons.
First, there may be a need to further reduce the
output ripple and noise of the module. Second, the
dynamic response characteristics may need to be
customized to a particular load step change.
For safety agency approval the power module must
be installed in compliance with the spacing and
separation requirements of the end-use safety
agency standards, i.e., UL 60950-1 2nd, CSA C22.2
No. 60950-1-07, DIN EN 60950-1:2006 + A11
(VDE0805 Teil 1 + A11):2009-11; EN 60950-1:2006
+ A11:2009-03.
For the converter output to be considered meeting
the requirements of safety extra-low voltage (SELV),
the input must meet SELV requirements. The power
module has extra-low voltage (ELV) outputs when all
inputs are ELV.
The input to these units is to be provided with a fast
-acting fuse with a maximum rating of 5A, 125Vdc in
the positive input lead.
To reduce the output ripple and improve the dynamic
response to a step load change, additional
capacitance at the output can be used. Low ESR
polymer and ceramic capacitors are recommended to
improve the dynamic response of the module. Fig-2
provides output ripple information for different
external capacitance values at various Vo and a full
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Feature Descriptions
VIN+
Remote On/Off
MODULE
Rpullup
The FGSR12SR6003*A power modules feature an
On/Off pin for remote On/Off operation. Two On/Off
logic options are available. In the Positive Logic
On/Off option, (device code suffix “P” - see Ordering
Information), the module turns ON during a logic High
on the On/Off pin and turns OFF during a logic Low.
With the Negative Logic On/Off option, (device code
suffix “N” - see Ordering Information), the module
turns OFF during logic High and ON during logic Low.
The On/Off signal should be always referenced to
ground. For either On/Off logic option, leaving the
On/Off pin disconnected will turn the module ON
when input voltage is present.
For positive logic modules, the circuit configuration
for using the On/Off pin is shown in Fig-3. When the
external transistor Q1 is in the OFF state, the internal
PWM Enable signal is pulled high through an internal
resistor and the external pullup resistor and the
module is ON. When transistor Q1 is turned ON, the
On/Off pin is pulled low and the module is OFF. A
suggested value for Rpullup is 20k.
PWM Enable
I
ON/OFF
ON/OFF
+
VON/OFF
Q1
GND
22K
Q4
CSS
22K
_
PVX012 NEGATIVE LOGIC FIGURE
Fig-4: Circuit configuration for using negative
On/Off logic.
Monotonic Start-up and Shut-down
The module has monotonic start-up and shutdown
behavior for any combination of rated input voltage,
output current and operating temperature range.
Startup into Pre-biased Output
The module can start into a prebiased output as long
as the prebias voltage is 0.5V less than the set output
voltage.
MODULE
+VIN
VIN
30K
Rpullup
I
ON/OFF
30K
ENABLE
Q4
20K
20K
0.047uF
Q3
+
20K
Q2
20K
V
ON/OFF
_
GND
Fig-3: Circuit configuration for using positive
On/Off logic.
For negative logic On/Off modules, the circuit
configuration is shown in Fig-4. The On/Off pin
should be pulled high with an external pull-up resistor
(suggested value for the 3V to 14.4V input range is
20Kohms). When transistor Q1 is in the OFF state,
the On/Off pin is pulled high, internal transistor Q4 is
turned ON and the module is OFF. To turn the
module ON, Q1 is turned ON pulling the On/Off pin
low, turning transistor Q4 OFF resulting in the PWM
Enable pin going high and the module turning ON.
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Output Voltage Programming
The output voltage of the module is programmable to
any voltage from 0.6dc to 5.5Vdc by connecting a
resistor between the Trim and SIG_GND pins of the
module. Certain restrictions apply on the output
voltage set point depending on the input voltage.
These are shown in the Output Voltage vs. Input
Voltage Set Point Area plot in Fig-5. The Upper Limit
curve shows that for output voltages lower than 1V,
the input voltage must be lower than the maximum of
14.4V. The Lower Limit curve shows that for output
voltages higher than 0.6V, the input voltage needs to
be larger than the minimum of 3V.
R TRIM 
12
[kΩ]
(VO-REQ - 0.6)
Rtrim is the external resistor in kohm
Vo-req is the desired output voltage
Note that the tolerance of a trim resistor will affect the
tolerance of the output voltage. Standard 1% or 0.5%
resistors may suffice for most applications; however,
a tighter tolerance can be obtained by using two
resistors in series instead of one standard value
resistor.
Table 1 lists calculated values of RTRIM for common
output voltages. For each value of RTRIM, Table 1 also
shows the closest available standard resistor value.
16
14
12
Table 1: Trim Resistor Value
VO-REG [V]
RTRIM [kΩ]
0.6
Open
0.9
40
1.0
30
1.2
20
1.5
13.33
1.8
10
2.5
6.316
3.3
4.444
5.0
2.727
Upper Limit
10
e
g8
a
tl
o6
V
t
u4
p
n
I
2
Lower Limit
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
Output Voltage
Fig-5: Output Voltage vs. Input Voltage Set
Point Area plot showing limits where the output
voltage can be set for different input voltages.
VIN(+)
Remote Sense
The power module has a Remote Sense feature to
minimize the effects of distribution losses by
regulating the voltage at the SENSE pin. The
voltage between the SENSE pin and VOUT pin
should not exceed 0.5V.
VO (+)
VS+
ON/OFF
LOAD
TRIM
Voltage Margining
Rtrim
Fig-6: Output Voltage vs. Input Voltage Set
Point Area plot showing limits where the output
voltage can be set for different input voltages.
Output voltage margining can be implemented in the
module by connecting a resistor, Rmargin-up, from
the Trim pin to the ground pin for margining-up the
output voltage and by connecting a resistor,
Rmargin-down, from the Trim pin to output pin for
margining-down. Fig-7 shows the circuit configuration
for output voltage margining.
Without an external resistor between Trim and
SIG_GND pins, the output of the module will be
0.6Vdc. To calculate the value of the trim resistor,
Rtrim for a desired output voltage, should be as per
the following equation:
The POL Programming Tool, available at
www.fdk.com under the Downloads section, also
calculates the values of Rmargin-up and
Rmargin-down for a specific output voltage and %
margin. Please consult your local FDK FAE for
additional details.
GND
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
loss of regulation occurs that would result in the
output voltage going ±10% outside the setpoint value.
The PGOOD terminal can be connected through a
pull-up resistor (suggested value 100KΩ) to a source
of 5VDC or lower.
Dual Layout
Identical dimensions and pin layout of Analog and
Digital 3A Tomodachi modules permit migration from
one to the other without needing to change the
layout. To support this, 2 separate Trim Resistor
locations have to be provided in the layout. For the
digital modules, the resistor is connected between
the TRIM pad and SGND and in the case of the
analog module it is connected between TRIM and
GND
Fig-7: Circuit Configuration for margining Output
Voltage.
MODULE
TRIM
Rtrim1
for
Digital
Over-Current Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current
limiting continuously. At the point of current-limit
inception, the unit enters hiccup mode. The unit
operates normally once the output current is brought
back into its specified range.
Rtrim2
for
Analog
SIG_GND
GND (PIN 7)
Caution – Do not connect SIG_GND to GND elsewhere in
the layout
Fig-9: Layout to support either Analog or Digital
6A Tomodachi modules on the same pad.
Over-Temperature Protection
To provide protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit
will shutdown if the overtemperature threshold of
135oC(typ) is exceeded at the thermal reference point
Tref. Once the unit goes into thermal shutdown it will
then wait to cool before attempting to restart.
Input Under-Voltage Lockout (UVLO)
At input voltages below the input under-voltage
lockout limit, the module operation is disabled. The
module will begin to operate at an input voltage
above the under-voltage lockout turn-on threshold.
Power Good
The module provides a Power Good (PGOOD) signal
that is implemented with an open-drain output to
indicate that the output voltage is within the
regulation limits of the power module. The PGOOD
signal will be de-asserted to a low state if any
condition such as over-temperature, over-current or
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Tunable Loop™
The module has a feature that optimizes transient
response of the module called Tunable Loop™
External capacitors are usually added to the output of
the module for two reasons: to reduce output ripple
and noise (see Fig-10) and to reduce output voltage
deviations from the steady-state value in the
presence of dynamic load current changes. Adding
external capacitance however affects the voltage
control loop of the module, typically causing the loop
to slow down with sluggish response. Larger values
of external capacitance could also cause the module
to become unstable.
The Tunable Loop™ allows the user to externally
adjust the voltage control loop to match the filter
network connected to the output of the module. The
Tunable Loop™ is implemented by connecting a
series R-C between the VS+ and TRIM pins of the
module, as shown in Fig-10. This R-C allows the user
to externally adjust the voltage loop feedback
compensation of the module.
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Table 3: Recommended values of RTUNE and
CTUNE to obtain transient deviation of 2% of Vout
for a 1.5A step load with Vin=12V.
VOUT
SENSE
RTUNE
MODULE
CO
CTUNE
TRIM
Vo
5V
3.3V
2.5V
Co
1x47uF
1x47uF
2x47uF
RTUNE
270
120
180
1.8V
1.2V
0.6V
1x330uF 1x330uF 2x330uF
Polymer Polymer Polymer
180
180
180
CTUNE 1500pF 1800pF 3300pF 8200pF 8200pF 33nF
RTrim
GND
△V
Fig-10: Circuit diagram showing connection of
RTUNE and CTUNE to tune the control loop of the
module.
68mV
60mV
37mV
18mV
18mV
10mV
Note: The capacitors used in the Tunable Loop
tables are 47uF/3 mΩ ESR ceramic and 330uF/12
mΩ ESR polymer capacitors.
Recommended values of RTUNE and CTUNE for
different output capacitor combinations are given in
Tables 2. Table 2 shows the recommended values of
RTUNE and CTUNE for different values of ceramic output
capacitors up to 1000uF that might be needed for an
application to meet output ripple and noise
requirements. Selecting RTUNE and CTUNE according to
Table 2 will ensure stable operation of the module. In
applications with tight output voltage limits in the
presence of dynamic current loading, additional
output capacitance will be required. Table 3 lists
recommended values of RTUNE and CTUNE in order to
meet 2% output voltage deviation limits for some
common output voltages in the presence of a 3A to
3A step change (50% of full load), with an input
voltage of 12V.
Please contact your FDK technical representative to
obtain more details of this feature as well as for
guidelines on how to select the right value of external
R-C to tune the module for best transient
performance and stable operation for other output
capacitance values.
Table 2: General recommended value of RTUNE
and CTUNE for Vin=12V and various external
ceramic capacitor combinations.
Co
1x47uF
2x47uF
4x47uF
6x47uF
10x47uF
RTUNE
270
220
180
180
180
1800pF
3300pF
4700pF
4700pF
CTUNE 1500pF
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Characterization
should not exceed the rated power of the module
(Vo,set x Io,max).
Overview
Note that continuous operation beyond the derated
current as specified by the derating curves may lead
to degradation in performance and reliability of the
converter and may result in permanent damage.
The converter has been characterized for several
operational features, including efficiency, thermal
derating (maximum available load current as a
function of ambient temperature and airflow), ripple
and noise, transient response to load step changes,
start-up and shutdown characteristics.
Figures showing data plots and waveforms for
different output voltages are presented in the
following pages.
Thermal Considerations
Power modules operate in a variety of thermal
environments; however, sufficient cooling should
always be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability.
The thermal data presented here is based on
physical measurements taken in a wind tunnel. The
test set-up is shown in Fig-11. The preferred airflow
direction for the module is in Fig-12.
Fig-12: Preferred airflow direction and location
of hot-spot of the module (Tref).
The main heat dissipation method of this converter is
to transfer its heat to the system board. Thus, if the
temperature of the system board goes high, even
with the low ambient temperature, it may exceed the
guaranteed temperature of components.
25.4_
(1.0)
Wind Tunnel
PWBs
Power Module
76.2_
(3.0)
x
12.7_
(0.50)
Probe Location
for measuring
airflow and
ambient
temperature
Air
flow
Fig-11: Thermal test set-up
The thermal reference points, Tref used in the
specifications are also shown in Fig-12. For reliable
operation the temperature at these points should not
exceed 120oC. The output power of the module
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Tomodachi at 5Vo and 25°C
3.5
100
(A)
90
85
Vin=14.4V
80
Vin=8V
Vin=12V
75
70
65
60
0
0.5
1
1.5
2
2.5
3
OUTPUT CURRENT, Io
EFFICIENCY, 
(%)
95
3.0
NC
2.5
Standard
Part (85°C)
2.0
0.5m/s
(100LFM)
Ruggedized (D)
Part (105°C)
1.5
45
55
65
75
85
95
105
O
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA C
Figure 32. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT CURRENT,
IO (A) (1Adiv)
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE
VO (V) (50mV/div)
Figure 31. Converter Efficiency versus Output Current.
TIME, t (1s/div)
TIME, t (20s /div)
Figure 34. Transient Response to Dynamic Load Change from 50%
to 100% at 12Vin, Cout-1x47uF, CTune-820pF & RTune-261
OUTPUT VOLTAGE
VO (V) (2V/div)
OUTPUT VOLTAGE
VO (V) (2V/div)
INPUT VOLTAGE
VIN (V) (5V/div)
ON/OFF VOLTAGE
VON/OFF (V) (5V/div)
Figure 33. Typical output ripple and noise (CO=10μF ceramic, VIN =
12V, Io = Io,max, ).
TIME, t (2ms/div)
Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max).
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1m/s
(200LFM)
TIME, t (2ms/div)
Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Tomodachi at 3.3Vo and 25°C
100
EFFICIENCY, 
(%)
95
90
Vin=4.5V
85
Vin=14.4V
Vin=12V
80
75
0
0.5
1
1.5
2
2.5
3
OUTPUT CURRENT, Io
(A)
3.5
3.0
NC
2.5
0.5m/s
(100LFM)
Standard
Part (85°C)
2.0
Ruggedized (D)
Part (105°C)
1m/s
(200LFM)
1.5
55
65
75
85
95
105
O
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA C
Figure 26. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT CURRENT
IO (A) (1Adiv)
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUTVOLTAGE
VO (V) (50mV/div)
Figure 25. Converter Efficiency versus Output Current.
TIME, t (1s/div)
TIME, t (20s /div)
Figure 28. Transient Response to Dynamic Load Change from 50%
to 100% at 12Vin, Cout-2x47uF, CTune-2200pF & RTune-261
OUTPUT VOLTAGE
VO (V) (1V/div)
OUTPUT VOLTAGE
VO (V) (1V/div)
ON/OFF VOLTAGE
VON/OFF (V) (5V/div)
INPUT VOLTAGE
VIN (V) (5V/div)
Figure 27. Typical output ripple and noise (CO=10μF ceramic, VIN =
12V, Io = Io,max, ).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max).
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1.5m/s
(300LFM)
Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Tomodachi at 2.5Vo and 25°C
3.5
100
(A)
(%)
90
EFFICIENCY, 
85
OUTPUT CURRENT, Io
1.5m/s
(300LFM)
95
Vin=4.5V
80
Vin=14.4
V
Vin=12V
75
70
0
0.5
1
1.5
2
2.5
3
NC
2.5
0.5m/s
(100LFM)
2.0
Standard
Part (85°C)
1.5
Ruggedized (D) Part (105°C)
1m/s
(200LFM)
1.0
55
65
75
85
95
105
O
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA C
Figure 20. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT CURRENT,
IO (A) (1Adiv)
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE
VO (V) (50mV/div)
Figure 19. Converter Efficiency versus Output Current.
TIME, t (1s/div)
TIME, t (20s /div)
Figure 22. Transient Response to Dynamic Load Change from 50%
to 100% at 12Vin, Cout-2x47uF, CTune-2700pF & RTune-261
OUTPUT VOLTAGE
VO (V) (1V/div)
OUTPUT VOLTAGE
VO (V) (1V/div)
ON/OFF VOLTAGE
VON/OFF (V) (5V/div)
INPUT VOLTAGE
VIN (V) (5V/div)
Figure 21. Typical output ripple and noise (CO=10μF ceramic, VIN =
12V, Io = Io,max, ).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max).
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3.0
Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Tomodachi at 1.8Vo and 25°C
3.5
EFFICIENCY, 
(%)
95
90
Vin=3.3V
85
80
Vin=14.4V
Vin=12V
75
0
0.5
1
1.5
2
2.5
3
OUTPUT CURRENT, Io
(A)
100
3.0
NC
2.5
Standard Part
(85°C)
2.0
Ruggedized (D)
Part (105°C)
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5
55
65
75
85
95
105
O
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA C
Figure 14. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT CURRENT,
IO (A) (1Adiv)
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE
VO (V) (10mV/div)
Figure 13. Converter Efficiency versus Output Current.
TIME, t (1s/div)
TIME, t (20s /div)
Figure 16. Transient Response to Dynamic Load Change from 50%
to 100% at 12Vin, Cout-1x47uF+1x330uF, CTune-10nF &
RTune-261
OUTPUT VOLTAGE
VO (V) (500mV/div)
OUTPUT VOLTAGE
VO (V) (500mV/div)
INPUT VOLTAGE
VIN (V) (5V/div)
ON/OFF VOLTAGE
VON/OFF (V) (5V/div)
Figure 15. Typical output ripple and noise (CO=10μF ceramic, VIN =
12V, Io = Io,max, ).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max).
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1.5m/s
(300LFM)
Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Tomodachi at 1.2Vo and 25°C
3.5
95
80
(A)
Vin=3.3 V
75
Vin=14.4V
Vin=12V
70
65
0
0.5
1
1.5
2
2.5
3
OUTPUT CURRENT, Io
(%)
85
EFFICIENCY, 
90
NC
2.5
0.5m/s
(100LFM)
Standard
Part (85 C)
2.0
Ruggedized (D)
Part (105° C)
1m/s
(200LFM)
1.5
55
65
75
85
95
105
O
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA C
Figure 8. Derating Output Current versus Ambient Temperature
and Airflow.
OUTPUT CURRENT,
IO (A) (1Adiv)
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE
VO (V) (10mV/div)
Figure 7. Converter Efficiency versus Output Current.
TIME, t (1s/div)
TIME, t (20s /div)
Figure 10. Transient Response to Dynamic Load Change from 50%
to 100% at 12Vin, Cout-1x47uF+1x330uF, CTune-10nF &
RTune-261
OUTPUT VOLTAGE
VO (V) (500mV/div)
OUTPUT VOLTAGE
VO (V) (500mV/div)
INPUT VOLTAGE
VIN (V) (5V/div)
ON/OFF VOLTAGE
VON/OFF (V) (5V/div)
Figure 9. Typical output ripple and noise (CO=10μF ceramic, VIN =
12V, Io = Io,max, ).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max).
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3.0
Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Tomodachi at 0.6Vo and 25°C
3.5
90
(A)
80
OUTPUT CURRENT, Io
EFFICIENCY, 
(%)
85
75
70
Vin=3.3V
Vin=6V
65
Vin=8V
60
55
50
0
0.5
1
1.5
2
2.5
3
NC
2.5
Standard Part
(85° C)
Ruggedized (D)
Part (105° C)
2.0
0.5m/s
(100LFM)
1m/s
(200LFM)
2m/s
(400LFM)
1.5m/s
(300LFM)
1.5
55
65
75
85
95
105
O
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA C
Figure 2. Derating Output Current versus Ambient Temperature and
Airflow.
OUTPUT CURRENT,
IO (A) (1Adiv)
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE
VO (V) (10mV/div)
Figure 1. Converter Efficiency versus Output Current.
TIME, t (1s/div)
TIME, t (20s /div)
Figure 4. Transient Response to Dynamic Load Change from 50%
to 100% at 8Vin, Cout-1x47uF+2x330uF, CTune-27nF, RTune-178
OUTPUT VOLTAGE
VO (V) (200mV/div)
OUTPUT VOLTAGE
VO (V) (200mV/div)
ON/OFF VOLTAGE
VON/OFF (V) (5V/div)
INPUT VOLTAGE
VIN (V) (5V/div)
Figure 3. Typical output ripple and noise (CO=10μF ceramic, VIN =
8V, Io = Io,max, ).
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max).
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3.0
Figure 6. Typical Start-up Using Input Voltage (VIN = 8V, Io =
Io,max).
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Example Application Circuit
Requirements:
Vin:
Vout:
Iout:
Vout:
Vin, ripple
12V
1.8V
2.25A max., worst case load transient is from 1.5A to 2.25A
1.5% of Vout (27mV) for worst case load transient
1.5% of Vin (180mV, p-p)
Vin+
VIN
PGOOD
+
CI3
CI2
CI1
SENSE
RTUNE
MODULE
+
CTUNE
ON/OFF
CO1
CO2
CO3
TRIM
GND
CI1
CI2
CI3
CO1
CO2
CO3
CTune
RTune
RTrim
Vout+
VOUT
VOUT
RTrim
Decoupling cap – 1 x 0.047uF/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01)
1 x 22uF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
47F/16V bulk electrolytic
Decoupling cap – 1 x 0.047uF/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01)
2 x 47uF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
None
2200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
261 ohms SMT resistor (can be 1206, 0805 or 0603 size)
10k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Mechanical Drawing
Notes
All dimensions are in millimeters (inches)
Tolerances:
x.x mm  0.5 mm (x.xx in.  0.02 in.)
[unless otherwise indicated]
x.xx mm  0.25 mm (x.xxx in  0.010 in.)
Pin Connections
Function
Pin #
Function
1
ON/OFF
10
PGOOD
2
3
Vin
GND
11
12
NC
NC
4
Vout
13
NC
5
VS+
14
NC
6
TRIM
15
NC
7
GND
16
NC
8
9
NC
NC
17
NC
Pin #
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Recommended Pad Layout
Pin Connections
Function
Pin #
Function
1
ON/OFF
10
PGOOD
2
Vin
11
NC
3
GND
12
NC
4
5
Vout
VS+
13
14
NC
NC
6
TRIM
15
NC
7
GND
16
NC
8
NC
17
NC
9
NC
Pin #
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Notes
All dimensions are in millimeters (inches)
Tolerances:
x.x mm  0.5 mm (x.xx in.  0.02 in.)
[unless otherwise indicated]
x.xx mm  0.25 mm (x.xxx in  0.010 in.)
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Packaging Details
The 3A Analog Tomodachi modules are supplied in tape & reel as standard. Modules are shipped in quantities
of 200 modules per reel.
All Dimensions are in millimeters and (in inches).
Reel Dimensions:
Outside Dimensions:
Inside Dimensions:
Tape Width:
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330.2 mm (13.00)
177.8 mm (7.00”)
24.00 mm (0.945”)
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
instructions. The recommended linear reflow profile
using Sn/Ag/Cu solder is shown in Fig-49. Soldering
outside of the recommended profile requires testing
to verify results and performance.
Surface Mount Information
Pick and Place
The 3A Analog Tomodachi modules use an open
frame construction and are designed for a fully
automated assembly process. The modules are fitted
with a label designed to provide a large surface area
for pick and place operations. The label meets all the
requirements for surface mount processing, as well
as safety standards, and is able to withstand reflow
temperatures of up to 300°C. The label also carries
product information such as product code, serial
number and the location of manufacture.
Nozzle Recommendations
The module weight has been kept to a minimum by
using open frame construction. Variables such as
nozzle size, tip style, vacuum pressure and
placement speed should be considered to optimize
this process. The minimum recommended inside
nozzle diameter for reliable operation is 3mm. The
maximum nozzle outer diameter, which will safely fit
within the allowable component spacing, is 7mm.
Bottom Side / First Side Assembly
MSL Rating
The 3A Analog Tomodachi modules have a MSL
rating of 2a.
Storage and Handling
The recommended storage environment and
handling procedures for moisture-sensitive surface
mount packages is detailed in J-STD-033 Rev. A
(Handling, Packing, Shipping and Use of
Moisture/Reflow Sensitive Surface Mount Devices).
Moisture barrier bags (MBB) with desiccant are
required for MSL ratings of 2 or greater. These
sealed packages should not be broken until time of
use. Once the original package is broken, the floor
life of the product at conditions of  30°C and 60%
relative humidity varies according to the MSL rating
(see J-STD-033A). The shelf life for dry packed
SMT packages will be a minimum of 12 months from
the bag seal date, when stored at the following
conditions: < 40°C, < 90% relative humidity.
300
Lead Free Soldering
The modules are lead-free (Pb-free) and RoHS
compliant and fully compatible in a Pb-free soldering
process. Failure to observe the instructions below
may result in the failure of or cause damage to the
modules and can adversely affect long-term
reliability.
Pb-free Reflow Profile
Power Systems will comply with J-STD-020 Rev. C
(Moisture / Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for
both Pb-free solder profiles and MSL classification
procedures. This standard provides a recommended
forced-air-convection reflow profile based on the
volume and thickness of the package (table 4-2).
The suggested Pb-free solder paste is Sn/Ag/Cu
(SAC). For questions regarding Land grid array
(LGA) soldering, solder volume; please contact
Lineage Power for special manufacturing process
Http://www.fdk.com
Per J-STD-020 Rev. C
Peak Temp 260°C
250
Reflow Temp (°C)
This module is not recommended for assembly on
the bottom side of a customer board. If such an
assembly is attempted, components may fall off the
module during the second reflow process.
200
* Min. Time Above 235°C
15 Seconds
Cooling
Zone
150
Heating Zone
1°C/Second
*Time Above 217°C
60 Seconds
100
50
0
Reflow Time (Seconds)
Fig-49: Recommended linear reflow profile
using Sn/Ag/Cu solder.
Post Solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing.
The result of inadequate cleaning and drying can
affect both the reliability of a power module and the
testability of the finished circuit-board assembly. For
guidance on appropriate soldering, cleaning and
drying procedures, refer to Board Mounted Power
Modules: Soldering and Cleaning Application Note
(AN04-001).
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Data Sheet
FGSR12SR6003*A
3-14.4Vdc Input, 3A, 0.6-5.5Vdc Output
Part Number System
Product
Series
Shape
Regulation
Input
Voltage
Mounting
Scheme
Output
Voltage
Rated
Current
ON/OFF
Logic
Pin
Shape
FG
S
R
12
S
R60
03
*
A
Series
Name
Small
R: Regulated
Typ=12V
Surface
Mount
(Programmable:
See page 6)
3A
N: Negative
P: Positive
Standard
0.60V
Cautions
NUCLEAR AND MEDICAL APPLICATIONS: FDK Corporation products are not authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems
without the written consent of FDK Corporation.
SPECIFICATION CHANGES AND REVISIONS:
change without notice.
Http://www.fdk.com
Specifications are version-controlled, but are subject to
Page 23 of 23
Ver 2.0 Nov. 11, 2013