Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5Vdc – 5.5Vdc input; 0.8 to 3.63Vdc; 30A Output Current
6.0Vdc – 14Vdc input; 0.8 to 3.63Vdc Output; 20/30A Output Current
* 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
Document No: DS06-109 ver. 1.14
PDF Name: austin_megalynx_smt.pdf
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
Delivers up to 30A of output current
High efficiency: 92% @ 3.3V full load (12Vin)
Available in two input voltage ranges
ATH: 4.5 to 5.5Vdc
ATS: 6 to 14Vdc
Output voltage programmable from
ATH: 0.8 to 3.63Vdc
ATS030: 0.8 to 2.75Vdc
ATS020: 0.8 to 3.63Vdc
Small size and low profile:
33.0 mm x 10.0 mm x 13.5 mm
(1.30 in. x 0.39 in. x 0.53 in.)
Monotonic start-up into pre-biased output
Output voltage sequencing (EZ-SEQUENCETM)
Remote On/Off
Remote Sense
Over current and Over temperature protection
-P option: Paralleling with active current share
-H option: Additional GND pins for improved
thermal derating
Wide operating temperature range (-40°C to 85°C)
UL* 60950 Recognized, CSA† C22.2 No.
60950-00 Certified, and VDE‡ 0805 (EN60950-1
3rd edition) Licensed
ISO** 9001 and ISO 14001 certified
manufacturing facilities
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Description
The Austin MegaLynx series SMT power modules are non-isolated DC-DC converters in an industry standard
package that can deliver up to 30A of output current with a full load efficiency of 92% at 2.5Vdc output voltage (VIN =
12Vdc). The ATH series of modules operate off an input voltage from 4.5 to 5.5Vdc and provide an output voltage
that is programmable from 0.8 to 3.63Vdc, while the ATS series of modules have an input voltage range from 6 to
14V and provide a programmable output voltage ranging from 0.8 to 3.63Vdc. Both series have a sequencing
feature that enables designers to implement various types of output voltage sequencing when powering multiple
modules on the board. Additional features include remote On/Off, adjustable output voltage, remote sense, over
current, over temperature protection and active current sharing between modules.
RoHS Compliant RoHS Compliant
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 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
Continuous ATH VIN -0.3 6 Vdc
ATS VIN -0.3 15 Vdc
Sequencing pin voltage ATH VsEQ -0.3 6 Vdc
ATS VsEQ -0.3 15 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 ATH VIN 4.5 5.0 5.5 Vdc
ATS VIN 6.0 12 14 Vdc
Maximum Input Current ATH IIN,max 27 Adc
(VIN= VIN,min , VO= VO,set, IO=IO, max) ATS020 IIN,max 13.3 Adc
ATS030 IIN,max 15.8 Adc
Inrush Transient All I2 t 1
A2 s
Input Reflected Ripple Current, peak-to-
peak
(5Hz to 20MHz, 1μH source impedance;
VIN=6.0V to 14.0V, IO= IOmax ; See Figure 1)
All 100 mAp-p
Input Ripple Rejection (120Hz) All 50 dB
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 3
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point All VO, set -1.5 +1.5 % VO, set
(VIN=VIN,nom, IO=IO, nom, Tref=25°C)
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life) All VO, set –5.0 +3.0 % VO, set
Adjustment Range
Selected by an external resistor ATS030 0.8 2.75 Vdc
ATS020 0.8 3.63 Vdc
ATH030* 0.8 3.63 Vdc
* VO ≥ 3.3V only possible for VIN ≥ 4.75V
Output Regulation
Line (VIN=VIN, min to VIN, max) All
20 mV
Load (IO=IO, min to IO, max) All
40 mV
(-P version)
70 mV
Temperature (Tref=TA, min to TA, max) All
0.5 1 % VO, set
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
COUT = 0.1μF // 10 μF ceramic capacitors)
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo ≤ 2.5V 50 mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth) 2.5V < Vo ≤ 3.63V 75 mVpk-pk
Peak-to-Peak (5Hz to 20MHz bandwidth) Vo > 3.63V 100 mVpk-pk
External Capacitance
ESR ≥ 1 mΩ All CO, max 0 2,000 μF
ESR ≥ 10 mΩ All CO, max 0 10,000 μF
Output Current
(VIN = 4.5 to 5.5Vdc) ATH Series Io 0 30 Adc
(VIN = 6 to 14Vdc) ATS030 Series Io 0 30 Adc
(VIN = 6 to 14Vdc) ATS020 Series Io 0 20 Adc
Output Current Limit Inception (Hiccup Mode) All IO, lim 140 % Iomax
Output Short-Circuit Current All IO, s/c 3.5 Adc
(VO≤250mV) ( Hiccup Mode )
Efficiency VO,set = 0.8dc η
82.2 %
ATH Series: VIN=5Vdc, TA=25°C VO,set = 1.2Vdc η
85.8 %
IO=IO, max , VO= VO,set V
O,set = 1.5Vdc η
89.5 %
V
O,set = 1.8Vdc η
89.2 %
V
O,set = 2.5Vdc η
92.0 %
V
O,set = 3.3Vdc η
92.2 %
ATS Series: VIN=12Vdc, TA=25°C VO,set = 0.8dc η 77.5 %
IO=IO, max , VO= VO,set V
O,set = 1.2Vdc η 83.5 %
V
O,set = 1.8Vdc η 86.5 %
V
O,set = 2.5Vdc η 91.3 %
V
O,set = 3.3Vdc η 92.1 %
Switching Frequency, Fixed All fsw 300 kHz
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 4
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Dynamic Load Response
(dIO/dt=5A/s; VIN=12V, Vo=3.3V ; TA=25°C)
Load Change from Io= 50% to 100% of IO,max;
No external output capacitors
Peak Deviation All Vpk 350 mV
Settling Time (VO<10% peak deviation) All ts 25 s
(dIO/dt=5A/s; VIN=VIN, nom; TA=25°C)
Load Change from IO= 100% to 50%of IO, max:
No external output capacitors
Peak Deviation All Vpk 350 mV
Settling Time (VO<10% peak deviation) All ts 25 s
(dIO/dt=5A/s; VIN=VIN, nom; TA=25°C)
Load Change from Io= 50% to 100% of Io,max;
2x150 μF polymer capacitor
Peak Deviation All Vpk 250 mV
Settling Time (VO<10% peak deviation) All ts 40 s
(dIO/dt=5A/s; VIN=VIN, nom; TA=25°C)
Load Change from Io= 100% to 50%of IO,max:
2x150 μF polymer capacitor
Peak Deviation All Vpk 250 mV
Settling Time (VO<10% peak deviation) All ts 40 s
General Specifications
Parameter Min Typ Max Unit
Calculated MTBF (VIN=12V, VO=3.3Vdc, IO= 0.8IO, max,
TA=40°C) Per Telecordia Method 3,016,040 Hours
Weight 6.2 (0.22) g (oz.)
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 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
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Logic High (Module OFF)
Input High Current All IIH 0.5 3.3 mA
Input High Voltage All VIH 3.0 VIN, max V
Logic Low (Module ON)
Input Low Current All IIL 200 µA
Input Low Voltage All VIL -0.3 1.2 V
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then
input power is applied (delay from instant at
which VIN = VIN, min until Vo = 10% of Vo, set)
All Tdelay ― 2.5 5 msec
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at which
Von/Off is enabled until Vo = 10% of Vo, set)
All Tdelay ― 2.5 5 msec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
All Trise 2 10 msec
Output voltage overshoot 3.0 % VO, set
IO = IO, max; VIN, min – VIN, max, TA = 25 oC
Remote Sense Range All 0.5 V
Over temperature Protection All Tref 125 °C
(See Thermal Consideration section)
Sequencing Slew rate capability All dVSEQ/dt — 2 V/msec
(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)
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) VSEQ –Vo 200 400 mV
(VIN, min to VIN, max; IO, min - IO, max VSEQ < Vo)
Input Undervoltage Lockout
Turn-on Threshold ATH 4.3 Vdc
Turn-off Threshold ATH 3.9 Vdc
Turn-on Threshold ATS 5.5 Vdc
Turn-off Threshold ATS 5.0 Vdc
Forced Load Share Accuracy -P 10 % Io
Number of units in Parallel -P 5
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 6
Characteristic Curves
The following figures provide typical characteristics for the ATS030A0X3-SR & -SRH (0.8V, 30A) at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
0 5 10 15 20 25 30
Vin = 12 V
Vin = 6 V
Vin = 14 V
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2.0m/s
(400LFM)
2.5m/s
(500LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current. Figure 4. Derating Output Current versus Ambient
Temperature and Airflow (ATS030A0X3-SRH).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM) 2m/s
(400LFM)
2.5m/s
(500LFM)
TIME, t (1s/div) AMBIENT TEMPERATURE, TA OC
Figure 2. Typical output ripple and noise (VIN = VIN,NOM,
Io = Io,max).
Figure 5. Derating Output Current versus Ambient
Temperature and Airflow (ATS030A0X3-SR).
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (100mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (0.5V/div)
TIME, t (20s /div) TIME, t (5ms/div)
Figure 3. Transient Response to Dynamic Load Change
from 0% to 50% to 0% of full load with VIN =12V.
Figure 6. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 7
Characteristic Curves
The following figures provide typical characteristics for the ATS030A0X3-SR and -SRH (1.25V, 30A) at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
0 5 10 15 20 25 30
Vin = 12 V
Vin = 6 V
Vin = 14 V
OUTPUT CURRENT, IO (A)
Figure 7. Converter Efficiency versus Output Current.
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
(100LFM) 1m/s
(200LFM) 1.5m/s
(300LFM)
2.0m/s
(400LFM)
2.5m/s
(500LFM)
AMBIENT TEMPERATURE, TA OC
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow (ATS030A0X3-SRH).
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
NC 0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM) 2m/s
(400LFM)
2.5m/s
(500LFM)
AMBIENT TEMPERATURE, TA OC
Figure 9. Derating Output Current versus Ambient
Temperature and Airflow (ATS030A0X3-SR).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 8
Characteristic Curves
The following figures provide typical characteristics for the ATS030A0X3-SR and –SRH (1.8V, 30A) at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
0 5 10 15 20 25 30
Vin = 12 V
Vin = 6 V
Vin = 14 V
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
(100LFM) 1m/s
(200LFM) 1.5m/s
(300LFM) 2m/s
(400LFM) 2.5m/s
(500LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 10. Converter Efficiency versus Output
Current.
Figure 13. Output Current Derating versus Ambient
Temperature and Airflow (ATS030A0X3-SRH).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
NC 0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM) 2m/s
(400LFM)
2.5m/s
(500LFM)
TIME, t (1s/div) AMBIENT TEMPERATURE, TA OC
Figure 11. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 14. Output Current Derating versus Ambient
Temperature and Airflow (ATS030A0X3-SR).
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (5A/div) VO (V) (100mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (1V/div)
TIME, t (20s /div) TIME, t (5ms/div)
Figure 12. Transient Response to Dynamic Load
Change from 0% to 50% to 0% of full load with VIN
=12V.
Figure 15. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 9
Characteristic Curves
The following figures provide typical characteristics for the ATS030A0X3-SR and -SRH (2.5V, 30A) at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
100
0 5 10 15 20 25 30
Vin = 12 V
Vin = 6 V
Vin = 14 V
OUTPUT CURRENT, IO (A)
Figure 16. Converter Efficiency versus Output Current.
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
NC 0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
2.5m/s
(500LFM)
AMBIENT TEMPERATURE, TA OC
Figure 17. Derating Output Current versus Ambient
Temperature and Airflow (ATS030A0X3-SRH).
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35 45 55 65 75 85
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
2.5m/s
(500LFM)
AMBIENT TEMPERATURE, TA OC
Figure 18. Derating Output Current versus Ambient
Temperature and Airflow (ATS030A0X3-SR).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 10
Characteristic Curves
The following figures provide typical characteristics for the ATS020A0X3-SR and –SRH (3.3V, 20A) at 25oC.
EFFICIENCY, (%)
70
75
80
85
90
95
100
0 5 10 15 20
Vin = 12 V
Vin = 6 V
Vin = 14 V
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30 40 50 60 70 80
NC 0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
2.5m/s
(500LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output
Current.
Figure 22. Output Current Derating versus Ambient
Temperature and Airflow (ATS020A0X3-SRH).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30 40 50 60 70 80
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM) 2m/s
(400LFM)
2.5m/s
(500LFM)
TIME, t (1s/div) AMBIENT TEMPERATURE, TA OC
Figure 20. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 23. Output Current Derating versus Ambient
Temperature and Airflow (ATS020A0X3-SR).
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (5A/div) VO (V) (100mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (1V/div)
TIME, t (20s /div) TIME, t (5ms/div)
Figure 21. Transient Response to Dynamic Load
Change from 0% to 50% of full load with VIN =12V.
Figure 24. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 11
Characteristic Curves
The following figures provide typical characteristics for the ATH030A0X3-SR and –SRH (0.8V, 30A) at 25oC.
EFFICIENCY, (%)
75
80
85
90
95
0 5 10 15 20 25 30
Vin = 4.5 V
Vin = 5.0 V
Vin = 5.5 V
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2.0m/s
(400LFM)
2.5m/s
(500LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 25. Converter Efficiency versus Output
Current.
Figure 28. Derating Output Current versus Ambient
Temperature and Airflow (ATS030A0X3-SRH).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2.0m/s
(400LFM)
2.5m/s
(500LFM)
TIME, t (1s/div) AMBIENT TEMPERATURE, TA OC
Figure 26. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 29. Derating Output Current versus Ambient
Temperature and Airflow (ATH030A0X3-SR).
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5A/div) VO (V) (100mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (2V/div) VO (V) (1V/div)
TIME, t (10s /div) TIME, t (2ms/div)
Figure 27. Transient Response to Dynamic Load
Change from 0% to 50% of full load with VIN =5V.
Figure 30. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 12
Characteristic Curves
The following figures provide typical characteristics for the ATH030A0X3-SR and –SRH (1.8V, 30A) at 25oC.
EFFICIENCY, (%)
75
80
85
90
95
0 5 10 15 20 25 30
Vin = 4.5 V
Vin = 5.0 V
Vin = 5.5 V
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
100LFM
1m/s
200LFM
1.5m/s
300LFM
2m/s
400LFM
2.5m/s
500LFM
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 31. Converter Efficiency versus Output
Current.
Figure 34. Derating Output Current versus Ambient
Temperature and Airflow (ATH030A0X3-SRH).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
(100LFM) 1m/s
(200LFM) 1.5m/s
(300LFM) 2m/s
(400LFM) 2.5m/s
(500LFM)
TIME, t (1s/div) AMBIENT TEMPERATURE, TA
O
C
Figure 32. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 35. Derating Output Current versus Ambient
Temperature and Airflow (ATH030A0X3-SR).
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5A/div) VO (V) (100mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (2V/div) VO (V) (0.5V/div)
TIME, t (10s /div) TIME, t (2ms/div)
Figure 33. Transient Response to Dynamic Load
Change from 0% to 50% of full load with VIN =5V.
Figure 36. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 13
Characteristic Curves
The following figures provide typical characteristics for the ATH030A0X3-SR and –SRH (3.3V, 30A) at 25oC.
EFFICIENCY, (%)
75
80
85
90
95
100
0 5 10 15 20 25 30
Vin = 4.5 V
Vin = 5.0 V
Vin = 5.5 V
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
(100LFM) 1m/s
(200LFM) 1.5m/s
(300LFM) 2m/s
(400LFM)
2.5m/s
(500LFM)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 37. Converter Efficiency versus Output
Current.
Figure 40. Derating Output Current versus Ambient
Temperature and Airflow (ATH030A0X3-SRH).
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, Io (A)
0
5
10
15
20
25
30
35
35 45 55 65 75 85
0.5m/s
100LFM 1m/s
200LFM 1.5m/s
300LFM 2m/s
400LFM
2.5m/s
500LFM
TIME, t (1s/div) AMBIENT TEMPERATURE, TA OC
Figure 38. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 41. Derating Output Current versus Ambient
Temperature and Airflow (ATH030A0X3-SR).
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (10A/div) VO (V) (100mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (2V/div) VO (V) (1V/div)
TIME, t (10s /div) TIME, t (2ms/div)
Figure 39. Transient Response to Dynamic Load
Change from 0% to 50% of full load with VIN =5V.
Figure 42. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 14
Test Configurations
TO OSCILLOSCOPE CURRENT PROBE
LTEST
1μH
BATTERY
CS 220μF
E.S.R.<0.1
@ 20°C 100kHz
Min
150μF
VIN(+)
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTES T) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
CIN
Figure 43. 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 44. Output Ripple and Noise Test Setup.
VO
COM
VIN(+)
COM
RLOAD
Rcontac t Rdistribution
Rcontac t 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 45. Output Voltage and Efficiency Test
Setup.
=
VO. IO
VIN. IIN
x 100 %
Efficiency
Design Considerations
The Austin MegaLynxTM module should be
connected to a low-impedance source. A highly
inductive source can affect the stability of the
module. An input capacitor 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 ceramic
capacitors are recommended at the input of the
module. Figure 46 shows the input ripple voltage for
various output voltages at 30A of load current with
1x22 µF or 2x22 µF ceramic capacitors and an
input of 12V. Figure 47 shows data for the 5Vin
case, with 2x22µF and 2x47µF of ceramic
capacitors at the input, and for a load current of
30A.
In
p
ut Ri
pp
le Volta
g
e
(
mV
p
-
p)
0
50
100
150
200
250
300
350
0.5 1 1.5 2 2.5
1 x 22u
F
2 x 22u
F
Output Voltage (Vdc)
Figure 46. Input ripple voltage for various
output voltages with 1x22 µF or 2x22 µF ceramic
capacitors at the input (30A load). Input voltage
is 12V.
In
p
ut Ri
pp
le Volta
g
e
(
mV
p
-
p)
0
20
40
60
80
100
120
0.5 1 1.5 2 2.5 3 3.5
2 x 22u
F
2 x 47u
F
Output Voltage (Vdc)
Figure 47. Input ripple voltage in mV, p-p for
various output voltages with 2x22 µF or 2x47 µF
ceramic capacitors at the input (30A load). Input
voltage is 5V.
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 15
Output Filtering
The Austin MegaLynxTM modules are designed for
low output ripple voltage and will meet the
maximum output ripple specification with 0.1 µF
ceramic and 10 µF 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.
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.
Figure 48 shows the output ripple voltage for
various output voltages at 30A of load current with
different external capacitance values and an input
of 12V. Figure 49 shows data for the 5Vin case for
various output voltages at 30A of load current with
different external capacitance values. For stable
operation of the module, limit the capacitance to
less than the maximum output capacitance as
specified in the electrical specification table.
0
10
20
30
40
50
60
70
80
90
100
110
0.5 1 1.5 2 2.5
Output Voltage(Volts)
Ripple(mVp-p)
1x10uF External Cap
1x47uF External Cap
2x47uF External Cap
4x47uF External Cap
Figure 48. Output ripple voltage for various
output voltages with external 1x10 µF, 1x47 µF,
2x47 µF or 4x47 µF ceramic capacitors at the
output (30A load). Input voltage is 12V.
5
15
25
0.5 1 1.5 2 2.5
Output Voltage(Volts)
Ripple(mVp-p)
1x10uF External Cap
1x47uF External Cap
2x47uF External Cap
4x47uF External Cap
Figure 49. Output ripple voltage for various
output voltages with external 1x10 µF, 1x47 µF,
2x47 µF or 4x47 µF ceramic capacitors at the
output (30A load). Input voltage is 5V.
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 60950, CSA C22.2 No.
60950-00, EN60950 (VDE 0850) (IEC60950, 3rd
edition) Licensed.
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.
Feature Descriptions
Remote On/Off
The Austin MegaLynxTM SMT power modules
feature a On/Off pin for remote On/Off operation. If
not using the On/Off pin, connect the pin to ground
(the module will be ON). The On/Off signal (Von/off)
is referenced to ground. Circuit configuration for
remote On/Off operation of the module using the
On/Off pin is shown in Figure 50.
During a Logic High on the On/Off pin (transistor Q1
is OFF), the module remains OFF. The external
resistor R1 should be chosen to maintain 3.0V
minimum on the On/Off pin to ensure that the
module is OFF when transistor Q1 is in the OFF
state. Suitable values for R1 are 4.7K for input
voltage of 12V and 3K for 5Vin. During Logic-Low
when Q1 is turned ON, the module is turned ON.
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 16
The ATS030A0X3-62SRHZ and ATS030A0X3-
62SRPHZ modules have a higher value resistor of
100K connected internally between the gate and
source of the internal FET used to control the PWM
Enable line.
The On/Off pin can also be used to synchronize the
output voltage start-up and shutdown of multiple
modules in parallel. By connecting On/Off pins of
multiple modules, the output start-up can be
synchronized (please refer to characterization
curves). When On/Off pins are connected together,
all modules will shutdown if any one of the modules
gets disabled due to undervoltage lockout or over
temperature protection.
Q1
GND
PWM Enable
ON/OFF
VIN+
ON/OFF
_
+
V
I
MOD ULE
R1
ON/OFF
100K
Therm al SD
1K
10K
Figure 50. Remote On/Off Implementation
using ON/OFF .
Remote Sense
The Austin MegaLynxTM SMT power modules have
a Remote Sense feature to minimize the effects of
distribution losses by regulating the voltage at the
Remote Sense pin (See Figure 51). The voltage
between the Sense pin and Vo pin must not exceed
0.5V.
The amount of power delivered by the module is
defined as the output voltage multiplied by the
output current (Vo x Io). When using Remote
Sense, the output voltage of the module can
increase, which, if the same output is maintained,
increases the power output by the module. Make
sure that the maximum output power of the module
remains at or below the maximum rated power.
When the Remote Sense feature is not being used,
connect the Remote Sense pin to output of the
module.
VO
COM
VIN(+ )
COM
RLOAD
Rcontact Rdistribution
Rcontact Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
Sense
Figure 51. Effective Circuit Configuration for
Remote Sense operation.
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. The average
output current during hiccup is 10% IO, max.
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
125oC is exceeded at the thermal reference point
Tref. The thermal shutdown is not intended as a
guarantee that the unit will survive temperatures
beyond its rating. Once the unit goes into thermal
shutdown it will then wait to cool before attempting
to restart.
Input Under Voltage Lockout
At input voltages below the input undervoltage
lockout limit, the module operation is disabled. The
module will begin to operate at an input voltage
above the undervoltage lockout turn-on threshold.
Output Voltage Programming
The output voltage of the Austin MegaLynxTM can
be programmed to any voltage from 0.8dc to
3.63Vdc by connecting a resistor (shown as Rtrim in
Figure 52) between Trim and GND pins of the
module. Without an external resistor between Trim
and GND pins, the output of the module will be
0.8Vdc. To calculate the value of the trim resistor,
Rtrim for a desired output voltage, use the following
equation:
100
80.0
1200
Vo
Rtrim
Rtrim is the external resistor in Ω
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 17
Vo is the desired output voltage
By using a ±0.5% tolerance trim resistor with a TC
of ±100ppm, a set point tolerance of ±1.5% can be
achieved as specified in the electrical specification.
Table 1 provides Rtrim values required for some
common output voltages. The POL Programming
Tool, available at www.lineagepower.com under the
Design Tools section, helps determine the required
external trim resistor needed for a specific output
voltage.
V
O
(+)
TRIM
GND
LOAD
V
IN
(+)
ON/OFF
Rtrim
Figure 52. Circuit configuration to program
output voltage using an external resistor.
Table 1
VO, set (V) Rtrim (KΩ)
0.8 Open
1.0 5.900
1.2 2.900
1.5 1.614
1.8 1.100
2.5 0.606
3.3 0.380
Voltage Margining
Output voltage margining can be implemented in
the Austin MegaLynxTM 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 output pin for margining-down. Figure 53 shows
the circuit configuration for output voltage
margining. The POL Programming Tool, available
at www.lineagepower.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 Lineage Power
technical representative for additional details.
Vo
Austin Lynx or
Lynx II Series
GND
Trim
Q1
Rtrim
Rmargin-up
Q2
Rmargin-down
Figure 53. Circuit Configuration for margining
Output voltage.
Voltage Sequencing
The Austin MegaLynxTM series of modules include a
sequencing feature 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 leave the SEQ pin unconnected or
tied to VIN.
For proper voltage sequencing, first, input voltage is
applied to the module. The On/Off pin of the
module is or tied to GND so that the module is ON
by default. After applying input voltage to the
module, a delay of 10msec minimum is required
before applying voltage on the SEQ pin. During this
delay time, the SEQ pin should be kept at a voltage
of 50mV (± 20 mV). After the 10msec delay, the
voltage applied to the SEQ pin is allowed to vary
and the output voltage of the module will track this
voltage on a one-to-one volt basis until the output
reaches the set-point voltage. To initiate
simultaneous shutdown of the modules, the SEQ
pin voltage is lowered in a controlled manner. The
output voltages of the modules track the sequence
pin voltage when it falls below their set-point
voltages. A valid input voltage must be maintained
until the tracking and output voltages reach zero to
ensure a controlled shutdown of the modules. For a
more detailed description of sequencing, please
refer to Application Note AN04-008 titled
“Guidelines for Sequencing of Multiple
Modules”.
When using the EZ-SEQUENCETM feature to
control start-up of the module, pre-bias immunity
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 18
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.
Active Load Sharing (-P Option)
For additional power requirements, the Austin
MegaLynx series power module is also available
with a parallel option. Up to five modules can be
configured, in parallel, with active load sharing.
Good layout techniques should be observed when
using multiple units in parallel. To implement forced
load sharing, the following connections should be
made:
The share pins of all units in parallel must be
connected together. The path of these
connections should be as direct as possible.
All remote-sense pins should be connected to
the power bus at the same point, i.e., connect
all the SENSE(+) pins to the (+) side of the bus.
Close proximity and directness are necessary
for good noise immunity
Some special considerations apply for design of
converters in parallel operation:
When sizing the number of modules required
for parallel operation, take note of the fact that
current sharing has some tolerance. In
addition, under transient condtions such as a
dynamic load change and during startup, all
converter output currents will not be equal. To
allow for such variation and avoid the likelihood
of a converter shutting off due to a current
overload, the total capacity of the paralleled
system should be no more than 75% of the
sum of the individual converters. As an
example, for a system of four ATS030A0X3-SR
converters the parallel, the total current drawn
should be less that 75% of (4 x 30A) , i.e. less
than 90A.
All modules should be turned on and off
together. This is so that all modules come up at
the same time avoiding the problem of one
converter sourcing current into the other
leading to an overcurrent trip condition. To
ensure that all modules come up
simultaneously, the on/off pins of all paralleled
converters should be tied together and the
converters enabled and disabled using the
on/off pin.
The share bus is not designed for redundant
operation and the system will be non-functional
upon failure of one of the unit when multiple
units are in parallel. In particular, if one of the
converters shuts down during operation, the
other converters may also shut down due to
their outputs hitting current limit. In such a
situation, unless a coordinated restart is
ensured, the system may never properly restart
since different converters will try to restart at
different times causing an overload condition
and subsequent shutdown. This situation can
be avoided by having an external output
voltage monitor circuit that detects a shutdown
condition and forces all converters to shut
down and restart together.
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 19
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 Figure 54. Note
that the airflow is parallel to the short axis of the
module as shown in Figure 55. The derating data
applies to airflow in either direction of the module’s
long axis.
Figure 54. Thermal Test Setup.
The thermal reference points, Tref used in the
specifications are shown in Figure 56. For reliable
operation the temperatures at these points 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 55. Airflow direction for thermal testing.
Figure 56. Tref Temperature measurement
location.
A
i
r
flow
x
Power Module
W
ind Tunnel
PWBs
12.7_
(0.50)
76.2_
(3.0)
Probe Location
for measuring
airflow and
ambient
temperature
25.4_
(1.0)
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 20
Mechanical Outline of Module (ATH030A0X3-SRPH/ATS030/020A0X3-SRPH)
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.)
COPLANARITY SHALL BE DEFINED AS WHEN THE MODULE IS PLACED ONTO A FLAT SURFAC E, THE CONTACTING SURFACE
SHALL NOT BE MORE THAN 0 004"
Note: For the ATH030A0X3-SRH and ATS030/020A0X3-SRH modules, the SHARE pin is omitted since these
modules are not capable of being paralleled.
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 21
Recommended Pad Layout (ATH030A0X3-SRPH/ATS030/020A0X3-SRPH)
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.)
Note: For the ATH030A0X3-SRH and ATS030/020A0X3-SRH modules, the SHARE pin is omitted since
these modules are not capable of being paralleled.
PIN FUNCTION PIN FUNCTION
1 On/Off 6 Trim
2 VIN 7 Sense
3 SEQ 8 GND
4 GND 9 SHARE
5 VOUT 10 GND
Pin 8
Pin 10
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 22
Mechanical Outline of Module (ATH030A0X3-SRP/ATS030/020A0X3-SRP)
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.)
.
COPLANARITY SHALL BE DEFINED AS WHEN THE MODULE IS PLACED ONTO A FLAT SURFAC E, THE CONTACTING SURFACE
SHALL NOT BE MORE THAN 0 004"
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 23
Recommended Pad Layout (ATH030A0X3-SRP/ATS030/020A0X3-SRP)
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.)
Note: For the ATH030A0X3-SR and ATS030/020A0X3-SR modules, the SHARE pin is omitted since
these modules are not capable of being paralleled.
PIN FUNCTION PIN FUNCTION
1 On/Off 6 Trim
2 VIN 7 Sense
3 SEQ 8 No Pin
4 GND 9 Share
5 VOUT 10 No Pin
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 24
Packaging Details
The Austin MegaLynxTM SMT version is 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 diameter: 330.2 (13.0)
Inside diameter: 177.8 (7.0)
Tape Width: 44.0 (1.73)
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 25
Surface Mount Information
Pick and Place
The Austin MegaLynxTM SMT 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 300oC. The label also carries
product information such as product code, serial
number and location of manufacture.
Figure 57. Pick and Place Location.
Nozzle Recommendations
The module weight has been kept to a minimum by
using open frame construction. Even so, these
modules have a relatively large mass when compared
to conventional SMT components. Variables such as
nozzle size, tip style, vacuum pressure and pick &
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 5 mm
max.
Tin Lead Soldering
The Austin MegaLynxTM SMT power modules are lead
free modules and can be soldered either in a lead-
free solder process or in a conventional Tin/Lead
(Sn/Pb) process. It is recommended that the
customer review data sheets in order to customize the
solder reflow profile for each application board
assembly. The following instructions must be
observed when soldering these units. Failure to
observe these instructions may result in the failure of
or cause damage to the modules, and can adversely
affect long-term reliability.
In a conventional Tin/Lead (Sn/Pb) solder process
peak reflow temperatures are limited to less than
235oC. Typically, the eutectic solder melts at 183oC,
wets the land, and subsequently wicks the device
connection. Sufficient time must be allowed to fuse
the plating on the connection to ensure a reliable
solder joint. There are several types of SMT reflow
technologies currently used in the industry. These
surface mount power modules can be reliably
soldered using natural forced convection, IR (radiant
infrared), or a combination of convection/IR. For
reliable soldering the solder reflow profile should be
established by accurately measuring the modules CP
connector temperatures.
REFLOW TEMP (C)
0
50
10 0
15 0
200
250
300
Preheat zone
max 4
o
Cs
-1
So ak zo ne
30-240s
Heat zone
max 4
o
Cs
-1
Peak Temp 235
o
C
Coo ling
zo ne
1- 4
o
Cs
-1
T
lim
above
205
o
C
REFLOW TIME (S)
Figure 58. Reflow Profile for Tin/Lead (Sn/Pb)
process.
MAX TEMP SOLDER (C)
200
205
210
215
220
225
230
235
240
0 102030405060
Figure 59. Time Limit Curve Above 205oC Reflow
for Tin Lead (Sn/Pb) process.
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 26
Surface Mount Information (continued)
Lead Free Soldering
The –Z version MegaLynx SMT modules are lead-free
(Pb-free) and RoHS compliant and are both forward
and backward compatible in a Pb-free and a SnPb
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).
The recommended linear reflow profile using
Sn/Ag/Cu solder is shown in Figure. 60.
MSL Rating
The Austin MegaLynxTM SMT modules have a MSL
rating of 2.
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.
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).
Pe r J-STD-020 Re v. C
0
50
100
150
200
250
300
Reflow Time (Seconds)
Reflow Temp (°C)
Hea ting Zone
1°C/Second
Pe ak Temp 260°C
* Min. Time Above 235 °C
15 Se c o nds
*Time Above 217°C
60 Sec o nds
Cooling
Zone
Figure 60. Recommended linear reflow profile
using Sn/Ag/Cu solder
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 27
Ordering Information
Table 2. Device Codes
Product codes Input
Voltage
Output
Voltage
Output
Current
On/Off
Logic
Connector
Type Comcodes
ATH030A0X3-SR 4.5 – 5.5Vdc 0.8 – 3.63Vdc 30A Negative SMT 108996625
ATH030A0X3-SRZ 4.5 – 5.5Vdc 0.8 – 3.63Vdc 30A Negative SMT CC109109550
ATH030A0X3-SRH 4.5 – 5.5Vdc 0.8 – 3.63Vdc 30A Negative SMT CC109102340
ATH030A0X3-SRHZ 4.5 – 5.5Vdc 0.8 – 3.63Vdc 30A Negative SMT CC109109567
ATH030A0X3-SRPH 4.5 – 5.5Vdc 0.8 – 3.63Vdc 30A Negative SMT 108996633
ATH030A0X3-SRPHZ 4.5 – 5.5Vdc 0.8 – 3.63Vdc 30A Negative SMT CC109109583
ATS030A0X3-SR 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT 108996591
ATS030A0X3-SRZ 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT CC109109591
ATS030A0X3-SRH 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT 108996600
ATS030A0X3-SRHZ 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT CC109109600
ATS030A0X3-SRPH 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT 108996617
ATS030A0X3-SRPHZ 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT CC109105285
ATS020A0X3-SR 6.0 – 14Vdc 0.8 – 3.63Vdc 20A Negative SMT CC109132544
ATS020A0X3-SRH 6.0 – 14Vdc 0.8 – 3.63Vdc 20A Negative SMT CC109132552
ATS020A0X3-SRPH 6.0 – 14Vdc 0.8 – 3.63Vdc 20A Negative SMT CC109132560
ATS020A0X3-SRZ 6.0 – 14Vdc 0.8 – 3.63Vdc 20A Negative SMT CC109132577
ATS020A0X3-SRHZ 6.0 – 14Vdc 0.8 – 3.63Vdc 20A Negative SMT CC109132585
ATS020A0X3-SRPHZ 6.0 – 14Vdc 0.8 – 3.63Vdc 20A Negative SMT CC109132593
ATS030A0X3-62SRHZ* 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT CC109139457
ATS030A0X3-62SRPHZ* 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT CC109140951
ATS030A0X3-42SRPHZ* 6.0 – 14Vdc 0.8 – 2.75Vdc 30A Negative SMT CC109145471
* Special codes, consult factory before ordering
Data Sheet
October 20, 2011
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules:
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
LINEAGE POWER 28
Document No: DS06-109 ver. 1.14
PDF Name: austin_megalynx_smt.pdf
Table 3. Device Options
Option Device Code Suffix
Current Share -P
2 Extra ground pins -H
RoHS Compliant -Z
World Wide Headquarters
Lineage Power Corporation
601 Shiloh Road, Plano, TX 75074, USA
+1-800-526-7819
(Outside U.S.A.: +1-972-244-9428)
www.lineagepower.com
e-mail: techsupport1@lineagepower.com
Asia-Pacific Headquarters
Tel: +65 6593 7211
Europe, Middle-East and Africa Headquarters
Tel: +49 898 780 672 80
India Headquarters
Tel: +91 80 28411633
Lineage Powe r reserves the right to make changes to the product(s) or information conta ined herein without not ice. No liability is assumed as a result of their use or
a
pplication. No rights under any pate nt accompany the sale of an y such product(s) or information.
Lineage Power DC-DC products are p rotected under various patents. Information on these patents is available at www.lineagepower.com/patents.
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2009 Linea
g
e Power Cor
p
oration
,
(
Plano
,
Texas
)
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