GE Industrial Solutions Austin SuperLynx SMT User Manual

Data Sheet
September 3, 2013

Austin SuperLynxTM SMT Non-isolated Power Modules:

3.0Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A Output Current

RoHS Compliant

Applications

 Distributed power architectures

 Intermediate bus voltage applications

 Telecommunications equipment

 Servers and storage applications

 Networking equipment

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 16A of output current

 High efficiency – 95% at 3.3V full load (V

5.0V)

 Small size and low profile:

 33.00 mm x 13.46 mm x 8.28 mm

 (1.300 in x 0.530 in x 0.326 in)

 Low output ripple and noise

 High Reliability:

 Calculated MTBF > 6.8M hours at 25

load

 Output voltage programmable from 0.75 Vdc to

3.63Vdc via external resistor

 Line Regulation: 0.3% (typical)

 Load Regulation: 0.4% (typical)

 Temperature Regulation: 0.4% (typical)

 Remote On/Off

 Remote Sense

 Output overcurrent protection (non-latching)

 Overtemperature protection

 Wide operating temperature range (-40°C to

85°C)

 UL* 60950-1Recognized, CSA

60950-1-03 Certified, and VDE
(EN60950-1) Licensed

 ISO** 9001 and ISO 14001 certified

manufacturing facilities

†

C22.2 No.

‡

=

IN

o

C Full-

0805:2001-12

Description

Austin SuperLynxTM SMT (surface mount technology) power modules are non-isolated dc-dc converters that can
deliver up to 16A of output current with full load efficiency of 95% at 3.3V output. These modules provide a
precisely regulated output voltage programmable via external resistor from 0.75Vdc to 3.63Vdc over a wide range of
input voltage (V
cost- and space-efficient solutions. Standard features include remote On/Off, remote sense, programmable output
voltage, overcurrent and overtemperature protection.

* UL is a re gistered trademark of Underwriters Laboratories, Inc.

†

CSA is a reg istered trademark of Canadian Standards Associatio n.

‡

VDE is a t rademark of Verband Deutscher Elektrotechniker e.V.

** ISO is a registered trademark of the International Orga nization of Standards

= 3.0 – 5.5Vdc). Their open-frame construction and small footprint enable designers to develop

IN

Document No: DS03-081 ver. 1.45

PDF name: superlynx_smt_3v-5.5v.pdf

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

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 V

Continuous

Operating Ambient Temperature All T

IN

A

-0.3 5.8 Vdc

-40 85 °C

(see Thermal Considerations section)

Storage Temperature All T

stg

-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 V

Maximum Input Current All I

(VIN= V

IN, min

to V

IN, max

, IO=I

O, max VO,set

= 3.3Vdc)

Input No Load Current V

≤ V

– 0.5V VIN 3.0

O,set

IN

IN,max

= 0.75 Vdc I

O,set

IN,No load

⎯

5.5 Vdc

16.0 Adc

70 mA

(VIN = 5.0Vdc, IO = 0, module enabled) V

Input Stand-by Current All I

= 3.3Vdc I

O,set

70 mA

IN,No load

1.5 mA

IN,stand-by

(VIN = 5.0Vdc, module disabled)

Inrush Transient All I2t 0.1 A2s

Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
V

= I

IN, max, IO

; See Test configuration section)

Omax

IN, min

to

All 100 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 fast­acting fuse with a maximum rating of 20A (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.

LINEAGE POWER 2

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point All V

(VIN=

IN, min

, IO=I

, TA=25°C)

O, max

Output Voltage All V

(Over all operating input voltage, resistive load,
and temperature conditions until end of life)

Adjustment Range All V

Selected by an external resistor

O, set

O, set

O

Output Regulation

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

to I

ref=TA, min

) All

IN, max

) All

O, max

to T

) All ⎯ 0.4 % V

A, max

Output Ripple and Noise on nominal output

(VIN=V

IN, nom

and IO=I

O, min

to I

O, max

Cout = 1μF ceramic//10μFtantalum capacitors)

RMS (5Hz to 20MHz bandwidth) All

Peak-to-Peak (5Hz to 20MHz bandwidth) All

External Capacitance

ESR ≥ 1 mΩ All C

ESR ≥ 10 mΩ All C

Output Current All I

Output Current Limit Inception (Hiccup Mode ) All I

Output Short-Circuit Current All I

(VO≤250mV) ( Hiccup Mode )

Efficiency V

VIN= V

IO=I

, TA=25°C V

IN, nom

= V

O, max , VO

V

O,set

V

V

V

= 0.75Vdc η 82.0 %

O,set

= 1.2Vdc η 87.0 %

O, set

= 1.5Vdc η 89.0 %

O,set

= 1.8Vdc η 90.0 %

O,set

= 2.5Vdc η 92.5 %

O,set

= 3.3Vdc η 95.0 %

O,set

Switching Frequency All f

O, max

O, max

o

O, lim

O, s/c

sw

Dynamic Load Response

(dIo/dt=2.5A/μs; VIN = V

IN, nom

; TA=25°C)

Load Change from Io= 50% to 100% of
Io,max; 1μF ceramic// 10 μF tantalum

All V

pk

Peak Deviation

Settling Time (Vo<10% peak deviation)

(dIo/dt=2.5A/μs; VIN = V

IN, nom

; TA=25°C)

Load Change from Io= 100% to 50%of Io,max:
1μF ceramic// 10 μF tantalum

All t

All V

s

pk

Peak Deviation

Settling Time (Vo<10% peak deviation)

All t

s

–2.0

–3%

⎯

⎯

+2.0 % V

+3% % V

0.7525 3.63 Vdc

⎯

⎯

⎯

⎯

0.3 % V

0.4 % V

8 15 mV

25 50 mV

⎯ ⎯

⎯ ⎯

0

⎯

⎯

⎯

180

3.5

1000 μF

3000 μF

16 Adc

⎯

⎯

⎯

⎯

⎯

⎯

⎯

300

300

25

300

25

⎯

⎯

⎯ μs

⎯

⎯ μs

pk-pk

% I

Adc

kHz

mV

mV

O, set

O, set

O, set

O, set

O, set

rms

o

LINEAGE POWER 3

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Dynamic Load Response

(dIo/dt=2.5A/μs; V VIN = V

Load Change from Io= 50% to 100% of Io,max;
Co = 2x150 μF polymer capacitors

Peak Deviation

Settling Time (Vo<10% peak deviation)

(dIo/dt=2.5A/μs; VIN = V

Load Change from Io= 100% to 50%of Io,max:
Co = 2x150 μF polymer capacitors

Peak Deviation

Settling Time (Vo<10% peak deviation)

IN, nom

IN, nom

; TA=25°C)

; TA=25°C)

All V

All t

All V

All t

pk

s

pk

s

⎯

⎯

⎯

⎯

150

100

150

100

⎯

⎯ μs

⎯

⎯ μs

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO=I

Weight

, TA=25°C) 6, 800,000 Hours

O, max

⎯

5.6 (0.2)

⎯

g (oz.)

mV

mV

LINEAGE POWER 4

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

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

Remote On/Off Signal interface

(VIN=V

Compatible, Von/off signal referenced to GND

See feature description section)

Input High Voltage (Module ON) All VIH ― ― 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

Turn-On Delay and Rise Times

(IO=I

Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (delay from
instant at which V

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)

Output voltage Rise time (time for Vo to rise from 10%
of V

Output voltage overshoot – Startup ―

IO= I

Overtemperature Protection

(See Thermal Consideration section)

Input Undervoltage Lockout

to V

IN, min

O, max , VIN

o,set to 90% of Vo, set)

; VIN = 3.0 to 5.5Vdc, TA = 25 oC

O, max

Turn-on Threshold All

Turn-off Threshold All

; Open collector pnp or equivalent

IN, max

= V

= 25 oC, )

IN, nom, TA

=V

IN

until Vo=10% of Vo,set)

IN, min

All Tdelay 3.9 msec

All Tdelay 3.9 msec

All Trise

All T

ref

V

IN, max

― 4.2 8,5 msec

1

⎯

⎯

⎯

125

2.2

2.0

⎯

⎯

⎯

% V

°C

V

V

O, set

LINEAGE POWER 5

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Characteristic Curves

The following figures provide typical characteristics for the Austin SuperLynxTM SMT modules at 25ºC.

90

87

84

81

78

75

EFFICIENCY, η (%)

72

0481216

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)

Figure 1. Converter Efficiency versus Output Current
(Vout = 0.75Vdc).

93

90

87

84

81

78

75

EFFICIENCY, η (%)

72

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

0 4 8 12 16

OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)

Figure 2. Converter Efficiency versus Output Current
(Vout = 1.2Vdc).

94

91

88

85

82

79

76

73

EFFICIENCY, η (%)

70

0481216

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)

Figure3. Converter Efficiency versus Output Current
(Vout = 1.5Vdc).

96

93

90

87

84

81

78

75

EFFICIENCY, η (%)

72

0481216

Figure 4. Converter Efficiency versus Output Current
(Vout = 1.8Vdc).

10 0

97

94

91

88

85

82

79

76

EFFICIENCY, η (%)

73

0481216

Figure 5. Converter Efficiency versus Output Current
(Vout = 2.5Vdc).

10 0

97

94

91

88

85

82

79

EFFICIENCY, η (%)

76

0 4 8 12 16

Figure 6. Converter Efficiency versus Output Current
(Vout = 3.3Vdc).

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

VIN = 4.5V

VIN = 5.0V

VIN = 5.5V

LINEAGE POWER 6

Data Sheet

(V)

September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Characteristic Curves (continued)

The following figures provide typical characteristics for the Austin SuperLynxTM SMT modules at 25ºC.

18

16

14

(A)

IN

12

10

8

6

4

2

INPUT CURRENT, I

0

0.5 1.5 2.5 3 .5 4.5 5.5

INPUT VOLTAGE, V

Figure 7. Input voltage vs. Input Current

(Vout = 2.5Vdc).

Io =0A

Io =8A

Io =16A

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

IN

I

Figure 10. Transient Response to Dynamic Load

TIME, t (5 μs/div)

Change from 50% to 100% of full load (Vo = 3.3Vdc).

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div) TIME, t (5 μs/div)

Figure 8. Typical Output Ripple and Noise

(Vin = 5.0V dc, Vo = 0.75 Vdc, Io=16A).

(V) (20mV/div)

O

OUTPUT VOLTAGE

V

TIME, t (2μs/div) TIME, t (10μs/div)

Figure 9. Typical Output Ripple and Noise

(Vin = 5.0V dc, Vo = 3.3 Vdc, Io=16A).

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

Figure 11. Transient Response to Dynamic Load
Change from 100% to 50% of full load (Vo = 3.3 Vdc).

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

Figure 12. Transient Response to Dynamic Load
Change from 50% to 100% of full load (Vo = 5.0 Vdc,
Cext = 2x150 μF Polymer Capacitors).

LINEAGE POWER 7

Data Sheet

μ

September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Characteristic Curves (continued)

The following figures provide typical characteristics for the Austin SuperLynxTM SMT modules at 25ºC.

(V) (2V/div)

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUTVOLTAGE

I

TIME, t (10μs/div)

Figure 13. Transient Response to Dynamic Load
Change from 100% of 50% full load (Vo = 5.0 Vdc, Cext
= 2x150

F Polymer Capacitors).

NN

V) (1V/div) V

O

V

OUTPUT VOLTAGE INPUT VOLTAGE

TIME, t (2 ms/div)

Figure 16. Typical Start-Up with application of Vin

(Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 16A).

(V) (2V/div)

On/off

V) (1V/div) V

O

V

OUTPUT VOLTAGE On/Off VOLTAGE

TIME, t (2 ms/div) TIME, t (2 ms/div)

Figure 14. Typical Start-Up Using Remote On/Off (Vin
= 5.0Vdc, Vo = 3.3Vdc, Io = 16.0A).

(V) (2V/div)

On/off

V) (1V/div) V

O

OUTPUT VOLTAGE On/Off VOLTAGE

V

F

igure 15. Typical Start-Up Using Remote On/Off with

TIME, t (2 ms/div) TIME, t (10ms/div)

Low-ESR external capacitors (Vin = 5.5Vdc, Vo =

3.3Vdc, Io = 16.0A, Co = 1050μF).

(V) (2V/div)

On/off

V) (1V/div) V

O

V

OUTPUT VOLTAGE On/Off VOLTAGE

Figure 17 Typical Start-Up Using Remote On/Off with
Prebias (Vin = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias
=1.0Vdc).

(A) (10A/div)

O

OUTPUT CURRENT,

I

Figure 18. Output short circuit Current (Vin = 5.0Vdc,
Vo = 0.75Vdc).

LINEAGE POWER 8

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Characteristic Curves (continued)

The following figures provide thermal derating curves for the Austin SuperLynxTM SMT modules.

18

16

14

12

10

NC

8

100 LFM

6

200 LFM

4

300 LFM

2

400 LFM

0

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

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).

OUTPUT CURRENT, Io (A)

18

16

14

12

10

NC

8

100 LFM

6

200 LFM

4

300 LFM

2

400 LFM

0

20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE, TA OC

Figure 20. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 5.0Vdc,
Vo=0.75 Vdc).

18

16

14

12

10

NC

8

100 LFM

6

200 LFM

4

300 LFM

2

400 LFM

0

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE, TA OC

Figure 21. Derating Output Current versus Local
Ambient Temperature and Airflow

(Vin = 3.3Vdc,

Vo=2.5 Vdc).

Figure 22. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 3.3dc,
Vo=0.75 Vdc).

18

16

14

12

10

NC

8

100 LFM

6

200 LFM

4

300 LFM

2

400 LFM

0

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

LINEAGE POWER 9

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Test Configurations

TO OSCILLOSCOPE

L

TEST

1μH

CS 1000μF

BATTERY

NOTE: Measure input reflected ripple current with a simulated

Electrolytic

E.S.R.<0.1Ω

@ 20°C 100kHz

source induct ance (L
possible battery impedance. Measure current as shown
above.

) of 1μH. Capacit or CS offsets

TEST

Figure 23. Input Reflected Ripple Current Test Setup.

COPPER STRIP

V

(+)

O

1uF .

COM

NOTE: All voltage measurements to be taken at the module

terminals, as shown above. If sockets are used then
Kelvin connections are required at t he module terminals
to avoid measurement errors due to socket contact
resistance.

10uF

SCOPE

GROUND PLANE

Figure 24. Output Ripple and Noise Test Setup.

R

R

contact

R

distribution

distribution

R

contact

VIN(+)

V

IN

COM

V

COM

CIN

2x100μF
Tantalum

O

V

O

CURRENT PROBE

VIN(+)

COM

RESISTIVE
LOAD

R

contactRdistribution

R

contactRdistribution

R

LOAD

Design Considerations

Input Filtering

The Austin SuperLynxTM SMT 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 (mVp­p) 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.

400

350

300

250

200

150

100

50

0

Input Ripple Voltage (mVp-p)

00.511.522.533.5

Output Voltage (Vdc)

Figure 26. Input ripple voltage for various output
with 1x150 µF polymer and 1x47 µF ceramic
capacitors at the input (full load).

250

200

3.3Vin

5Vin

NOTE: All volt age meas urements to be taken at th e module

terminals , as shown above. If sock ets are us ed then
Kelvin conn ections are requir ed at the modu le termi nals
to avoid measur ement err ors due to soc ket contact
resistance.

Figure 25. Output Voltage and Efficiency Test Setup.

. I

V

O

Efficiency

=

η

VIN. I

O

IN

x 100 %

150

100

50

0

Input Ripple Voltage (mVp-p)

00.511.522.533.5

3.3Vin

5Vin

Output Voltage (Vdc)

Figure 27. Input ripple voltage for various output
with 2x150 µF polymer and 2x47 µF ceramic
capacitors at the input (full load).

LINEAGE POWER 10

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Design Considerations (continued)

Output Filtering

The Austin SuperLynxTM SMT 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 60950-1, CSA C22.2 No. 60950-1-03, and VDE
0850:2001-12 (EN60950-1) 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.

The input to these units is to be provided with a fast­acting fuse with a maximum rating of 20A in the positive
input lead

.

LINEAGE POWER 11

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Feature Description

Remote On/Off

The Austin SuperLynxTM SMT power modules feature an
On/Off pin for remote On/Off operation of the module.
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 = V
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 V

VIN+

R2

I

ON/OFF

ON/OFF

V

ON/OFF

Q1

+

R1

Q2

R3

is 10µA.

IN,max

IN.

MODULE

PWM Enable

Q3 CSS

the unit will survive temperatures beyond its rating. The
module will automatically restart after it cools down.

Output Voltage Programming

The output voltage of the Austin SuperLynxTM SMT can
be programmed to any voltage from 0.75 Vdc to 3.63
Vdc by connecting a single resistor (shown as Rtrim in
Figure 29) 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:

Rtrim



−

Vo



21070



= 5110

7525.0



Ω

−




For example, to program the output voltage of the Austin
SuperLynx
follows:

TM

module to 1.8 Vdc, Rtrim is calculated is

VIN(+)

21070



= 5110

Rtrim



−



VO(+)

7525.08.1

−

Ω= kRtrim 004.15

Vout






R4

GND

Figure 28. Remote On/Off Implementation.

_

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 3.5A.

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 T
the thermal shutdown is not intended as a guarantee that

, exceeds 125oC (typical), but

ref

ON/OFF

GND

TRIM

R

trim

LOAD

Figure 29. Circuit configuration for programming
output voltage using an external resistor.

The Austin SuperLynx
applying a voltage between the TRIM and the GND pins
(Figure 30). The following equation can be used to
determine the value of Vtrim needed to obtain a desired
output voltage Vo:

For example, to program the output voltage of a
SuperLynx
follows:

TM

module to 3.3 Vdc, Vtrim is calculated as

TM

can also be programmed by

{}()

7525.01698.07.0 −×−= VoVtrim

{}

)7525.03.31698.07.0( −×−=Vtrim

VVtrim 2670.0=

LINEAGE POWER 12

Data Sheet

V

September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Feature Descriptions (continued)

V

V

(+)

IN

ON/OFF

GND

Figure 30. Circuit Configuration for programming
Output voltage using external voltage source.

Table 1 provides Rtrim values required for some common
output voltages, while Table 2 provides values of the
external voltage source, Vtrim for the same common
output voltages.

Table 1

Table 2

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.lineagepower.com under the Design Tools section,

helps determine the required external trim resistor
needed for a specific output voltage.

(+)

O

LOAD

V

O, set

TRIM

(V)

+

rim

t

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

(V) Vtrim (V)

O, set

0.7525 Open

1.2 0.6240

1.5 0.5731

1.8 0.5221

2.5 0.4033

3.3 0.2674

The amount of power delivered by the module is defined
as the voltage at the output terminals multiplied by the
output current. When using the trim feature, the output
voltage of the module can be increased, which at the
same output current would increase the power output of
the module. Care should be taken to ensure that the
maximum output power of the module remains at or
below the maximum rated power (P

max

= V

o,set

x I

o,max

).

Voltage Margining

Output voltage margining can be implemented in the
Austin SuperLynx
R

, from the Trim pin to the ground pin for

margin-up

margining-up the output voltage and by connecting a
resistor, R
for margining-down. Figure 31 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 R
voltage and % margin. Please consult your local Lineage
Power technical representative for additional details.

Figure 31. Circuit Configuration for margining Output
voltage.

TM

modules by connecting a resistor,

margin-down

Austin Lynx or
Lynx II Series

, from the Trim pin to the Output pin

and R

margin-up

Vo

Trim

GND

margin-down

Rtrim

for a specific output

Rmargin-down

Q2

Rmargin-up

Q1

LINEAGE POWER 13

Data Sheet
September 3, 2013

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

Austin Superlynx

Feature Descriptions (continued)

Remote Sense

The Austin SuperLynxTM 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 32). 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 the output pin.

R

distribution

R

contact

VIN(+)

V

Sense

R

O

contact Rdistribution

R

LOAD

TM

SMT Non-isolated Power Modules:

R

distribution

R

contact

COM

COM

R

contact Rdistribution

Figure 32. Remote sense circuit configuration

LINEAGE POWER 14

Data Sheet

A

W

September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

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

34. Note that the airflow is parallel to the short axis of the
module as shown in figure 33. The derating data applies
to airflow in either direction of the module’s short axis.

Top View

T

Bottom View

ref

Air Flow

Figure 33. T

The thermal reference point, T
specifications is shown in Figure 33. For reliable
operation this temperature should not exceed 115

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-

Temperature measurement location.

ref

used in the

ref

o

C.

Mounted Power Modules” for a detailed discussion of
thermal aspects including maximum device temperatures.

25.4_

ind Tu nn e l

PWBs

x

5.97_

(0.235)

ir

flow

(1.0)

Po w e r M o d u l e

76.2_

(3.0)

Probe Location
for measuring
airflow and
ambient
temperature

Figure 34. 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 at
different local ambient temperatures (T
conditions ranging from natural convection and up to
2m/s (400 ft./min) are shown in the Characteristics
Curves section.

) for airflow

A

Layout Considerations

Copper paths must not be routed beneath the power
module. For additional layout guide-lines, refer to the
FLTR100V10 application note.

LINEAGE POWER 15

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

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.)

LINEAGE POWER 16

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

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.)

LINEAGE POWER 17

Data Sheet
September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Packaging Details

The Austin SuperLynxTM SMT version is supplied in tape & reel as standard. Modules are shipped in quantities of
250 modules per reel.

All Dimensions are in millimeters and (in inches).

Reel Dimensions:

Outside Dimensions: 330.2 mm (13.00)

Inside Dimensions: 177.8 mm (7.00”)

Tape Width: 44.00 mm (1.732”)

LINEAGE POWER 18

Data Sheet
September 3, 2013

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

Austin Superlynx

Surface Mount Information

Pick and Place

The Austin SuperLynxTM 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 300
product information such as product code, serial
number and the location of manufacture.

o

C. The label also carries

TM

SMT Non-isolated Power Modules:

Reflow Soldering Information

The Austin SuperLynxTM SMT power modules are
large mass, low thermal resistance devices and
typically heat up slower than other SMT components.
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.

Typically, the eutectic solder melts at 183
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 pin temperatures.

o

C, wets the

Figure 35. 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 placement
speed should be considered to optimize this process.
The minimum recommended nozzle diameter for
reliable operation is 6mm. The maximum nozzle outer
diameter, which will safely fit within the allowable
component spacing, is 9 mm.

Oblong or oval nozzles up to 11 x 9 mm may also be
used within the space available.

Figure 36. Reflow Profile.

An example of a reflow profile (using 63/37 solder) for
the Austin SuperLynx

• Pre-heating zone: room temperature to 183
(2.0 to 4.0 minutes maximum)

• Initial ramp rate < 2.5

• Soaking Zone: 155

seconds typical (2.0 minutes maximum)

• Reflow zone ramp rate:1.3

• Reflow zone: 210

TM

SMT power module is :

o

C per second

o

C to 183 oC – 60 to 90

o

o

C to 235oC peak temperature –

C to 1.6oC per second

o

C

30 to 60 seconds (90 seconds maximum

LINEAGE POWER 19

Data Sheet
September 3, 2013

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

Austin Superlynx

Surface Mount Information (continued)

Lead Free Soldering

The –Z version Austin SuperLynx 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 Fig. 37.

MSL Rating

The Austin SuperLynx SMT 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

TM

SMT Non-isolated Power Modules:

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).

300

Per J-STD-020 Rev. C

250

200

150

Heat ing Zone

1°C/Second

100

Reflow Temp (°C)

50

0

Peak Temp 260°C

* Min. Time Above 235°C
15 Seconds

*Time Above 217°C

60 Seconds

Reflow Time (Seconds)

Cooling

Zone

Figure 37. Recommended linear reflow profile
using Sn/Ag/Cu solder.

LINEAGE POWER 20

Data Sheet

a

©

September 3, 2013

Austin Superlynx

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

TM

SMT Non-isolated Power Modules:

Ordering Information

Please contact your Lineage Power Sales Representative for pricing, availability and optional features.

Table 3. Device Codes

Product codes

Input

Voltage

AXH016A0X3-SR 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A

AXH016A0X3-SRZ 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A

AXH016A0X3-SR12* 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A

AXH016A0X3-SR12Z* 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A

* -12 code has 100Ω resistor between sense and output pins, internal to the module.

Standard code, without –12 suffix, has 10Ω resistor between sense and output pins.

-Z refers to RoHS-compliant parts

Output

Voltage

Output

Current

Efficiency

3.3V @ 16A

Connector

Type

95.0% SMT

95.0% SMT

95.0% SMT

95.0% SMT

Comcodes

108979519

108995180

108993416

CC109104477

Asia-Pacific Headquarters

Tel: + 65 6593 7211

World Wide Headquarters
Lineage Power Corporation

601 Shil oh Roa d, Plano, TX 75074, USA
[phone]
(Outsi de U.S.A.: [phone])

www.lineagepower.com
e-mail: techs [e-mail]

Linea ge Power res erves th e right to make change s to the prod uct(s) or i nformat ion contained herein without not ice. No l iability is assumed as a result o f their use or

pplication . No righ ts under any patent accompany the sal e of an y such produc t(s) or informati on.

Linea ge Power D C-DC pro ducts are p rotected unde r v arious pa tents. Information on these pa tents is avail able at www.l ineagepo wer.com/patents.

2009 Line age Power Corporation, (Plan o, Texas) All Inte rn ational Rights Reserved.

Europe, Middle-East and Africa Headquarters

Tel: + 49 898 780 672 80

India Headquarters
Tel: + 91 80 2841163 3

LINEAGE POWER 21

Document No: DS03-081 ver. 1.45

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