GE Energy
Data Sheet
February 16, 2021
©2015 General Electric Company. All rights reserved.
6A Austin MicroLynx IITM: SIP Non-Isolated DC-DC Power Module
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
Features
▪ Compliant to RoHS EU Directive 2011/65/EU and
amended Directive (EU) 2015/863
▪ Compliant to REACH Directive (EC) No 1907/2006
▪ Flexible output voltage sequencing EZ-SEQUENCETM
▪ Delivers up to 6A output current
▪ High efficiency – 96% at 3.3V full load (VIN = 5.0V)
▪ Small size and low profile:
25.4 mm x 12.7mm x 6.68 mm
(1.00 in x 0. 5 in x 0.263 in)
▪ Low output ripple and noise
▪ High Reliability:
Calculated MTBF = 12.8M hours at 25oC Full-load
▪ Programmable Output voltage
▪ Line Regulation: 0.3% (typical)
▪ Load Regulation: 0.4% (typical)
▪ Temperature Regulation: 0.4 % (typical)
▪ Remote On/Off
▪ Output overcurrent protection (non-latching)
▪ Wide operating temperature range (-40°C to 85°C)
▪ ANSI/UL* 62368-1 and CAN/ CSA† C22.2 No. 62368-1
Recognized, DIN VDE‡ 0868-1/A11:2017 (EN62368-
1:2014/A11:2017)
▪ ISO** 9001 and ISO 14001 certified manufacturing
facilities
Description
Austin MicroLynxTM II SIP power modules are non-isolated dc-dc converters that can deliver up to 6A of output current with
full load efficiency of 96.0% at 3.3V output. These modules provide a precisely regulated output voltage programmable via an
external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage (VIN = 2.4 – 5.5Vdc). Austin MicroLynxTM II has a
sequencing feature, EZ-SEQUENCETM that enable designers to implement various types of output voltage sequencing when
powering multiple modules on board. Their open-frame construction and small footprint enable designers to develop cost-
and space-efficient solutions. In addition to sequencing, standard features include remote On/Off, programmable output
voltage and over current protection.
* 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
RoHS Compliant
EZ-SEQUENCETM
GE Energy
Data Sheet
6A Austin MicroLynxIITM: SIP Non-Isolated DC-DC Power Modules
2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
GE 2
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only,
functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of
the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter
Device
Symbol
Min
Max
Unit
Input Voltage
All
VIN
-0.3
5.8
Vdc
Continuous
Sequencing voltage
All
Vseq
-0.3
VIN,max
Vdc
Operating Ambient Temperature
All
TA
-40
85
°C
(see Thermal Considerations section)
Storage Temperature
All
Tstg
-55
125
°C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
Vo,set ≤ 3.63
VIN
2.4
⎯
5.5
Vdc
Maximum Input Current
All
IIN,max
Adc
(VIN= VIN, min to VIN, max, IO=IO, max )
6.0
Input No Load Current
VO,set = 0.75 Vdc
IIN,No load
20
mA
(VIN = VIN, nom, Io = 0, module enabled)
VO,set = 3.3Vdc
IIN,No load
45
mA
Input Stand-by Current
All
IIN,stand-by
0.6
mA
(VIN = VIN, nom, module disabled)
Inrush Transient
All
I2t
0.04
A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to VIN,
max, IO= IOmax ; See Test configuration section)
All
35
mAp-p
Input Ripple Rejection (120Hz)
All
30
dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex
power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system
protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 6 A (see Safety
Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the
same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 3
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
All
VO, set
-2.0
⎯
+2.0
% VO, set
(VIN=IN, min, IO=IO, max, TA=25°C)
Output Voltage
All
VO, set
–3.0
⎯
+3.0
% VO, set
(Over all operating input voltage, resistive load, and
temperature conditions until end of life)
Adjustment Range
All
VO
0.7525
3.63
Vdc
Selected by an external resistor
Output Regulation
Line (VIN=VIN, min to VIN, max)
All
⎯
0.3
⎯
% VO, set
Load (IO=IO, min to IO, max)
All
⎯
0.4
⎯
% VO, set
Temperature (Tref=TA, min to TA, max)
All
⎯
0.4
⎯
% VO, set
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
Cout = 1μF ceramic//10μFtantalum capacitors)
RMS (5Hz to 20MHz bandwidth)
All
⎯
10
15
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
All
⎯
40
50
mVpk-pk
External Capacitance
ESR ≥ 1 mΩ
All
CO, max
⎯
⎯
1000
μF
ESR ≥ 10 mΩ
All
CO, max
⎯
⎯
3000
μF
Output Current
All
Io
0
6
Adc
Output Current Limit Inception (Hiccup Mode )
All
IO, lim
⎯
220
⎯
% Io
(VO= 90% of VO, set)
Output Short-Circuit Current
All
IO, s/c
⎯
2
⎯
Adc
(VO≤250mV) ( Hiccup Mode )
Efficiency
VO, set =
0.75Vdc
η
81.0
%
VIN= VIN, nom, TA=25°C
VO, set = 1.2Vdc
η
87.0
%
IO=IO, max , VO= VO,set
VO,set = 1.5Vdc
η
89.0
%
VO,set = 1.8Vdc
η
90.0
%
VO,set = 2.5Vdc
η
93.0
%
VO,set = 3.3Vdc
η
96.0
%
Switching Frequency
All
fsw
⎯
300
⎯
kHz
Dynamic Load Response
(dIo/dt=2.5A/s; VIN = VIN, nom; TA=25°C)
All
Vpk
⎯
130
⎯
mV
Load Change from Io= 50% to 100% of Io,max; 1μF
ceramic// 10 μF tantalum
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
ts
⎯
25
⎯
s
(dIo/dt=2.5A/s; VIN = VIN, nom; TA=25°C)
All
Vpk
⎯
130
⎯
mV
Load Change from Io= 100% to 50%of Io,max: 1μF
ceramic// 10 μF tantalum
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
ts
⎯
25
⎯
s
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 4
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Dynamic Load Response
(dIo/dt=2.5A/s; V VIN = VIN, nom; TA=25°C)
All
Vpk
⎯
50
⎯
mV
Load Change from Io= 50% to 100% of Io,max;
Co = 2x150 μF polymer capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
ts
⎯
50
⎯
s
(dIo/dt=2.5A/s; VIN = VIN, nom; TA=25°C)
All
Vpk
⎯
50
⎯
mV
Load Change from Io= 100% to 50%of Io,max:
Co = 2x150 μF polymer capacitors
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
ts
⎯
50
⎯
s
General Specifications
Parameter
Min
Typ
Max
Unit
Calculated MTBF (IO=IO, max, TA=25°C)
12,841,800
Hours
per Telecordia SR-332 Issue 1: Method 1 Case 3
Weight
⎯
2.8 (0.1)
⎯
g (oz.)
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 5
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter
Device
Symbol
Min
Typ
Max
Unit
On/Off Signal interface
Device code with Suffix “4” – Positive logic
(On/Off is open collector/drain logic input;
Signal referenced to GND - See feature description section)
Input High Voltage (Module ON)
All
VIH
―
―
VIN, max
V
Input High Current
All
IIH
―
―
10
μA
Input Low Voltage (Module OFF)
All
VIL
-0.2
―
0.3
V
Input Low Current
All
IIL
―
0.2
1
mA
Device Code with no suffix – Negative Logic
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Input High Voltage (Module OFF)
All
VIH
1.5
―
VIN,max
Vdc
Input High Current
All
IIH
0.2
1
mA
Input Low Voltage (Module ON)
All
VIL
-0.2
―
0.3
Vdc
Input low Current
All
IIL
―
10
μA
Turn-On Delay and Rise Times
(IO=IO, max , VIN = VIN, nom, TA = 25 oC, )
Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (delay from
instant at which VIN =VIN, min until Vo=10% of Vo,set)
All
Tdelay
―
3.9
―
msec
Case 2: Input power is applied for at least one second
and then the On/Off input is set to logic Low (delay from
instant at which Von/Off=0.3V until Vo=10% of Vo, set)
All
Tdelay
―
3.9
―
msec
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set)
All
Trise
―
4.2
8.5
msec
Output voltage overshoot – Startup
―
1
% VO, set
IO= IO, max; VIN = 2.4 to 5.5Vdc, TA = 25 oC
Sequencing Delay time
Delay from VIN, min to application of voltage on SEQ pin
All
TsEQ-delay
10
msec
Tracking Accuracy (Power-Up: 2V/ms)
All
|VSEQ –
Vo |
100
200
mV
(Power-Down: 1V/ms)
All
|VSEQ –
Vo |
200
400
mV
(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)
Overtemperature Protection
All
Tref
⎯
150
⎯
°C
(See Thermal Consideration section)
Input Undervoltage Lockout
Turn-on Threshold
All
2.2
V
Turn-off Threshold
All
2.0
V
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 6
Characteristic Curves
The following figures provide typical characteristics for the Austin MicroLynxTM II SIP modules at 25ºC.
EFFICIENCY, (%)
70
73
76
79
82
85
88
91
0 1 2 3 4 5 6
VIN=2.4V
VIN=5V
VIN=5.5V
EFFICIENCY, (%)
74
77
80
83
86
89
92
95
98
0 1 2 3 4 5 6
VIN=2.4V
VIN=5V
VIN=5.5V
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current (Vout =
0.75Vdc).
Figure 4. Converter Efficiency versus Output Current (Vout =
1.8Vdc).
EFFICIENCY, (%)
70
73
76
79
82
85
88
91
94
0 1 2 3 4 5 6
VIN=2.4V
VIN=5V
VIN=5.5V
EFFICIENCY, (%)
74
77
80
83
86
89
92
95
98
0 1 2 3 4 5 6
VIN=3V
VIN=5V
VIN=5.5V
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Figure 2. Converter Efficiency versus Output Current (Vout =
1.2Vdc).
Figure 5. Converter Efficiency versus Output Current (Vout =
2.5Vdc).
EFFICIENCY, (%)
70
73
76
79
82
85
88
91
94
0 1 2 3 4 5 6
VIN=2.4V
VIN=5V
VIN=5.5V
EFFICIENCY, (%)
74
77
80
83
86
89
92
95
98
0 1 2 3 4 5 6
VIN=4.5V
VIN=5V
VIN=5.5V
OUTPUT CURRENT, IO (A)
OUTPUT CURRENT, IO (A)
Figure 3. Converter Efficiency versus Output Current (Vout =
1.5Vdc).
Figure 6. Converter Efficiency versus Output Current (Vout =
3.3Vdc).
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 7
Characteristic Curves (continued)
The following figures provide typical characteristics for the MicroLynxTM II SIP modules at 25ºC.
INPUT CURRENT, IIN (A)
0
1
2
3
4
5
6
7
1 1.75 2.5 3.25 4 4.75 5.5
Io=3A
Io=0A
Io=6A
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (2A/div) VO (V) (100mV/div)
INPUT VOLTAGE, VIN (V)
TIME, t (5 s/div)
Figure 7. Input voltage vs. Input Current
(Vout =2.5Vdc).
Figure 10. Transient Response to Dynamic Load Change from
50% to 100% of full load (Vo = 3.3Vdc).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (2A/div) VO (V) (100mV/div)
TIME, t (2s/div)
TIME, t (5 s/div)
Figure 8. Typical Output Ripple and Noise
(Vin = 5.0V dc, Vo = 0.75 Vdc, Io=6A).
Figure 11. Transient Response to Dynamic Load Change
from 100% to 50% of full load (Vo = 3.3 Vdc).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (2A/div) VO (V) (100mV/div)
TIME, t (2s/div)
TIME, t (10s/div)
Figure 9. Typical Output Ripple and Noise
(Vin = 5.0V dc, Vo = 3.3 Vdc, Io=6A).
Figure 12. Transient Response to Dynamic Load Change
from 50% to 100% of full load (Vo = 3.3 Vdc, Cext = 2x150 μF
Polymer Capacitors).
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the Austin MicroLynxTM II SIP modules at 25ºC.
OUTPUT CURRENT, OUTPUTVOLTAGE
IO (A) (2A/div) VO (V) (100mV/div)
OUTPUT VOLTAGE, INPUT VOLTAGE
Vo (V) (1V/div) VIN (V) (2V/div)
TIME, t (10s/div)
TIME, t (2 ms/div)
Figure 13. Transient Response to Dynamic Load Change from
100% of 50% full load (Vo = 3.3Vdc, Cext = 2x150 μF Polymer
Capacitors).
Figure 16. Typical Start-Up with application of Vin
(Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 6A).
OUTPUT VOLTAGE On/Off VOLTAGE
VOV) (1V/div) VOn/off (V) (2V/div)
OUTPUT VOLTAGE On/Off VOLTAGE
VOV) (1V/div) VOn/off (V) (2V/div)
TIME, t (2 ms/div)
Figure 14. Typical Start-Up Using Remote On/Off
(Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 6A).
Figure 17 Typical Start-Up Using Remote On/Off with Prebias
(Vin = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias =1.0Vdc).
OUTPUT VOLTAGE On/Off VOLTAGE
VOV) (1V/div) VOn/off (V) (2V/div)
OUTPUT CURRENT,
IO (A) (5A/div)
TIME, t (2 ms/div)
TIME, t (5ms/div)
Figure 15. Typical Start-Up Using Remote On/Off with Low-
ESR external capacitors (7x150uF Polymer) (Vin = 5.0Vdc, Vo =
3.3Vdc, Io = 6A, Co = 1050F).
Figure 18. Output short circuit Current
(Vin = 5.0Vdc, Vo = 0.75Vdc).
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 9
Characteristic Curves (continued)
The following figures provide thermal derating curves for the Austin MicroLynxTM II SIP modules.
Test Configurations
OUTPUT CURRENT, Io (A)
0.0
1.5
3.0
4.5
6.0
7.5
20 30 40 50 60 70 80 90
0.5m/s (100 LFM)
NC
1.0m/s (200 LFM)
OUTPUT CURRENT, Io (A)
0
2
3
5
6
8
20 30 40 50 60 70 80 90
NC
1.0m/s (200 LFM)
0.5m/s (100 LFM)
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Figure 19. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 5.0, Vo=3.3Vdc).
Figure 22. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 3.3dc, Vo=0.75 Vdc).
OUTPUT CURRENT, Io (A)
0.0
1.5
3.0
4.5
6.0
7.5
20 30 40 50 60 70 80 90
NC
1.0m/s (200 LFM)
0.5m/s (100 LFM)
AMBIENT TEMPERATURE, TA OC
Figure 20. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 5.0Vdc, Vo=0.75 Vdc).
OUTPUT CURRENT, Io (A)
0.0
1.5
3.0
4.5
6.0
7.5
20 30 40 50 60 70 80 90
NC
1.0m/s (200 LFM)
0.5m/s (100 LFM)
AMBIENT TEMPERATURE, TA OC
Figure 21. Derating Output Current versus Local Ambient
Temperature and Airflow (Vin = 3.3Vdc, Vo=2.5 Vdc).
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 10
TO OSCILLOSCOPE
CURRENT PROBE
LTEST
1μH
BATTERY
CS 1000μF
Electrolytic
E.S.R.<0.1
@ 20°C 100kHz
2x100μF
Tantalum
VIN(+)
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
CIN
Figure 23. Input Reflected Ripple Current Test Setup.
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
V
O
(+)
COM
1uF
.
RESISTIVE
LOAD
SCOPE
COPPER STRIP
GROUND PLANE
10uF
Figure 24. Output Ripple and Noise Test Setup.
VO
COM
VIN(+)
COM
RLOAD
Rcontact
Rdistribution
Rcontact
Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
VIN
VO
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 25. Output Voltage and Efficiency Test Setup.
=
VO.
IO
VIN.
IIN
x
100
%
Efficiency
Design Considerations
Input Filtering
The Austin MicroLynxTM II SIP module should be connected to
a low-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, low-ESR polymer and
ceramic capacitors are recommended at the input of the
module. Figure 26 shows the input ripple voltage (mVp-p)
for various outputs with 1x150 µF polymer capacitors
(Panasonic p/n: EEFUE0J151R, Sanyo p/n: 6TPE150M) in
parallel with 1 x 47 µF ceramic capacitor (Panasonic p/n: ECJ-
5YB0J476M, Taiyo- Yuden p/n: CEJMK432BJ476MMT) at full
load. Figure 27 shows the input ripple with 2x150 µF
polymer capacitors in parallel with 2 x 47 µF ceramic
capacitor at full load.
Input Ripple Voltage (mVp-p)
0
20
40
60
80
100
120
0 1 2 3 4
Vin = 3.3V
Vin = 5.0V
Output Voltage (Vdc)
Figure 26. Input ripple voltage for various output with 1x150 µF
polymer and 1x47 µF ceramic capacitors at the input (80% of
Io,max).
Input Ripple Voltage (mVp-p)
0
20
40
60
80
100
120
0 1 2 3 4
Vin = 3.3V
Vin = 5.0V
Output Voltage (Vdc)
Figure 27. Input ripple voltage for various output with 2x150 µF
polymer and 2x47 µF ceramic capacitors at the input (80% of
Io,max).
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 11
Design Considerations (continued)
Output Filtering
The Austin MicroLynxTM II SIP module is designed for low output
ripple voltage and will meet the maximum output ripple
specification with 1 µF ceramic and 10 µF tantalum 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.
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.
For stable operation of the module, limit the capacitance to less
than the maximum output capacitance as specified in the
electrical specification table.
Safety Considerations
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 ANSI/UL* 62368-1
and CAN/CSA+ C22.2 No. 62368-1 Recognized, DIN VDE 0868-
1/A11:2017 (EN62368-1:2014/A11:2017).
For the converter output to be considered meeting the
Requirements of safety extra-low voltage (SELV) or ES1, the input
must meet SELV/ES1 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 6A in the positive input lead.
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 12
Feature Description
Remote On/Off
The Austin LynxTM II SIP power modules feature an On/Off pin for
remote On/Off operation. Two On/Off logic options are available
in the Austin LynxTM II series modules. Positive Logic On/Off
signal, device code suffix “4”, turns the module ON during a logic
High on the On/Off pin and turns the module OFF during a logic
Low. Negative logic On/Off signal, no device code suffix, turns
the module OFF during logic High on the On/Off pin and turns the
module ON during logic Low.
For positive logic modules, the circuit configuration for using the
On/Off pin is shown in Figure 28. The On/Off pin is an open
collector/drain logic input signal (Von/Off) that is referenced to
ground. During a logic-high (On/Off pin is pulled high internal to
the module) when the transistor Q1 is in the Off state, the power
module is ON. Maximum allowable leakage current of the
transistor when Von/off = VIN,max is 10µA. Applying a logic-low
when the transistor Q1 is turned-On, the power module is OFF.
During this state VOn/Off must be less than 0.3V. When not
using positive logic On/off pin, leave the pin unconnected or tie
to VIN.
Q1
R2
R1 Q2
R3
R4
Q3 CSS
GND
VIN+
ON/OFF
PWM Enable
+
_
ON/OFF
V
ION/OFF
MODULE
Figure 28. Circuit configuration for using positive logic On/OFF.
For negative logic On/Off devices, the circuit configuration is
shown is Figure 29. The On/Off pin is pulled high with an
external pull-up resistor (typical Rpull-up = 5k, +/- 5%). When
transistor Q1 is in the Off state, logic High is applied to the
On/Off pin and the power module is Off. The minimum On/off
voltage for logic High on the On/Off pin is 1.5Vdc. To turn the
module ON, logic Low is applied to the On/Off pin by turning ON
Q1. When not using the negative logic On/Off, leave the pin
unconnected or tie to GND.
Q1
R1
R2
Q2 CSS
GND
PWM Enable
ON/OFF
VIN+
ON/OFF
_
+
V
I
MODULE
pull-up
R
ON/OFF
Figure 29. Circuit configuration for using negative logic On/OFF.
Overcurrent 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. The typical average output current during hiccup
is 2A.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout limit,
module operation is disabled. The module will begin to operate
at an input voltage above the undervoltage lockout turn-on
threshold.
Overtemperature Protection
To provide over temperature protection in a fault condition, the
unit relies upon the thermal protection feature of the controller
IC. The unit will shutdown if the thermal reference point Tref,
exceeds 150oC (typical), but the thermal shutdown is not
intended as a guarantee that the unit will survive temperatures
beyond its rating. The module will automatically restart after it
cools down.
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 13
Feature Descriptions (continued)
Output Voltage Programming
The output voltage of the Austin MicroLynxTM II SIP can be
programmed to any voltage from 0.75 Vdc to 3.3 Vdc by
connecting a single resistor (shown as Rtrim in Figure 30)
between the TRIM and GND pins of the module. Without an
external resistor between TRIM pin and the ground, the output
voltage of the module is 0.7525 Vdc. To calculate the value of
the resistor Rtrim for a particular output voltage Vo, use the
following equation:
−
−
=5110
7525.0
21070
Vo
Rtrim
For example, to program the output voltage of the Austin
MicroLynxTM II module to 1.8 Vdc, Rtrim is calculated is follows:
−
−
=5110
7525.08.1
21070
Rtrim
= kRtrim 004.15
V
O
(+)
TRIM
GND
R
trim
LOAD
V
IN
(+)
ON/OFF
Vout
Figure 30. Circuit configuration to program output voltage
using an external resistor.
Table 1 provides Rtrim values required for some common output
voltages.
Table 1
VO, set (V)
Rtrim (KΩ)
0.7525
Open
1.2
41.973
1.5
23.077
1.8
15.004
2.5
6.947
3.3
3.160
By using a 1% tolerance trim resistor, set point tolerance of ±2%
is achieved as specified in the electrical specification. The POL
Programming Tool, available at www.gecriticalpower.com
under the Design Tools section, helps determine the required
external trim resistor needed for a specific output voltage.
Voltage Margining
Output voltage margining can be implemented in the Austin
MicroLynxTM II modules 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 the Output pin for margining-down. Figure 31
shows the circuit configuration for output voltage margining.
The POL Programming Tool, available at
www.gecriticalpower.com under the Design Tools section, also
calculates the values of Rmargin-up and Rmargin-down for a specific
output voltage and % margin. Please consult your local GE
technical representative for additional details.
Vo
Austin Lynx or
Lynx II Series
GND
Trim
Q1
Rtrim
Rmargin-up
Q2
Rmargin-down
Figure 31. Circuit Configuration for margining Output
voltage.
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 14
Feature Descriptions (continued)
Voltage Sequencing
Austin MicroLynxTM II series of modules include a sequencing
feature, EZ-SEQUENCETM that enables users to implement various
types of output voltage sequencing in their applications. This is
accomplished via an additional sequencing pin. When not using
the sequencing feature, either tie the SEQ pin to VIN or leave it
unconnected.
When an analog voltage is applied to the SEQ pin, the output
voltage tracks this voltage until the output reaches the set-point
voltage. The SEQ voltage must be set higher than the set-point
voltage of the module. The output voltage follows the voltage on
the SEQ pin on a one-to-one volt basis. By connecting multiple
modules together, customers can get multiple modules to track
their output voltages to the voltage applied on the SEQ pin.
For proper voltage sequencing, first, input voltage is applied to
the module. The On/Off pin of the module is left unconnected
(or tied to GND for negative logic modules or tied to VIN for
positive logic modules) so that the module is ON by default.
After applying input voltage to the module, a minimum of
10msec delay is required before applying voltage on the SEQ pin.
During this time, potential of 50mV (± 10 mV) is maintained on
the SEQ pin. After 10msec delay, an analog voltage is applied to
the SEQ pin and the output voltage of the module will track this
voltage on a one-to-one volt bases until output reaches the set-
point voltage. To initiate simultaneous shutdown of the
modules, the SEQ pin voltage is lowered in a controlled manner.
Output voltage of the modules tracks the voltages below their
set-point voltages on a one-to-one basis. A valid input voltage
must be maintained until the tracking and output voltages reach
ground potential to ensure a controlled shutdown of the
modules.
When using the EZ-SEQUENCETM feature to control start-up of
the module, pre-bias immunity feature during start-up is
disabled. The pre-bias immunity feature of the module relies on
the module being in the diode-mode during start-up. When
using the EZ-SEQUENCETM feature, modules goes through an
internal set-up time of 10msec, and will be in synchronous
rectification mode when voltage at the SEQ pin is applied. This
will result in sinking current in the module if pre-bias voltage is
present at the output of the module. When pre-bias immunity
during start-up is required, the EZ-SEQUENCETM feature must be
disabled. For additional guidelines on using EZ-SEQUENCETM
feature of Austin MicroLynxTM II , contact GE technical
representative for preliminary application note on output voltage
sequencing using Austin Lynx II series.
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 15
Thermal Considerations
Power modules operate in a variety of thermal environments;
however, sufficient cooling should 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 Figure 33. Note that the airflow is parallel
to the long axis of the module as shown in figure 32. The
derating data applies to airflow in either direction of the
module’s long axis.
Air Flow
Tref
Top View
Bottom View
Figure 32. Tref Temperature measurement location.
The thermal reference point, Tref 1 used in the specifications of
thermal derating curves is shown in Figure 32. For reliable
operation this temperature should not exceed 125oC.
The output power of the module should not exceed the rated
power of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal Characterization
Process For Open-Frame Board-Mounted Power Modules” for a
detailed discussion of thermal aspects including maximum
device temperatures.
Figure 33. Thermal Test Set-up.
Heat Transfer via Convection
Increased airflow over the module enhances the heat transfer via
convection. Thermal derating curves showing the maximum
output current that can be delivered by various module versus
local ambient temperature (TA) for natural convection and up to
1m/s (200 ft./min) are shown in the Characteristics Curves
section.
Air
flow
x
Power Module
Wind Tunnel
PWBs
7.24_
(0.285)
76.2_
(3.0)
Probe Location
for measuring
airflow and
ambient
temperature
25.4_
(1.0)
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 16
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.
Through-Hole Lead-Free Soldering Information
The RoHS-compliant through-hole products use the SAC
(Sn/Ag/Cu) Pb-free solder and RoHS-compliant components.
They are designed to be processed through single or dual wave
soldering machines. The pins have an RoHS-compliant finish that
is compatible with both Pb and Pb-free wave soldering processes.
A maximum preheat rate of 3C/s is suggested. The wave
preheat process should be such that the temperature of the
power module board is kept below 210C. For Pb solder, the
recommended pot temperature is 260C, while the Pb-free
solder pot is 270C max. Not all RoHS-compliant through-hole
products can be processed with paste-through-hole Pb or Pb-free
reflow process. If additional information is needed, please
consult with your GE technical representative for more details.
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 17
Mechanical Outline
Dimensions are in millimeters and (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.)
Top View
Side View
Bottom View
PIN
FUNCTION
1
Vo
2
Trim
3
GND
A
SEQ
4
VIN
5
On/Off
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
February 16, 2021
©2015 General Electric Company. All rights reserved.
Page 18
Recommended Pad Layout
Dimensions are in millimeters and (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
FUNCTION
1
Vo
2
Trim
3
GND
A
SEQ
4
VIN
5
On/Off
Through-Hole Pad Layout – Back view
GE Energy
Data Sheet
6A Austin MicroLynxTMII: SIP Non-Isolated DC-DC Power Modules
2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 6A Output Current
Contact Us
For more information, call us at
USA/Canada:
+1 877 546 3243, or +1 972 244 9288
Asia-Pacific:
+86-21-53899666
Europe, Middle-East and Africa:
+49.89.878067-280
Go.ABB/Industrial
GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no
liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or
information.
February 16, 2021
©2015 General Electric Company. All International rights reserved.
Version 1_3
Ordering Information
Please contact your GE Sales Representative for pricing, availability and optional features.
Table 2. Device Codes
Device Code
Input
Voltage
Output
Voltage
Output
Current
Efficiency
3.3V@ 6A
Connector
Type
Comcodes
ATH006A0XZ
2.4 – 5.5Vdc
0.75 – 3.63Vdc
6 A
96.0%
SIP
CC109104717
ATH006A0X4Z
2.4 – 5.5Vdc
0.75 – 3.63Vdc
6 A
96.0%
SIP
CC109104725
-Z refers to RoHS-compliant versions.