GE Energy
6A Austin MicroLynx
8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current
RoHS Compliant
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Enterprise Networks
Latest generation IC’s (DSP, FPGA, ASIC) and
Microprocessor powered applications
TM
II: Non-Isolated DC-DC Power Module
EZ-SEQUENCETM
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)
Flexible output voltage sequencing
EZ-SEQUENCE
Delivers up to 6A output current
High efficiency – 89% at 3.3V full load (V
Small size and low profile:
27.9 mm x 11.4 mm x 7.24 mm
(1.10 in x 0.45 in x 0.285 in)
Low output ripple and noise
High Reliability:
Calculated MTBF = 15.3M hours at 25
Output voltage programmable from 0.75 Vdc to 5.5Vdc
via external resistor
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)
UL* 60950-1Recognized, CSA
Certified, and VDE
ISO** 9001 and ISO 14001 certified manufacturing
facilities
TM
Data Sheet
= 12.0V)
IN
o
C Full-load
†
‡
0805:2001-12 (EN60950-1) Licensed
C22.2 No. 60950-1-03
Description
Austin MicroLynxTM II 12V SMT (surface mount technology) power modules are non-isolated DC-DC converters that can deliver up
to 6A of output current with full load efficiency of 89% at 5.0V output. These modules provide precisely regulated output voltage
programmable via external resistor from 0.75Vdc to 5.5Vdc over a wide range of input voltage (V
MicroLynx
voltage sequencing when powering multiple voltages on a board.
* 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
TM
II 12V series has a sequencing feature, EZ-SEQUENCETM that enable designers to implement various types of output
= 8.3 - 14V). The Austin
IN
October 16, 2012 ©2012 General Electric Company. All rights reserved.
GE Energy
Data Sheet
6A Austin MicroLynxTMII: Non-Isolated DC-DC Power Modules
8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current
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
IN
Sequencing voltage All Vseq -0.3 V
Operating Ambient Temperature All T
A
(see Thermal Considerations section)
Storage Temperature All T
stg
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 8.3 12 14 Vdc
Vo,set > 3.63 VIN 8.3 12 13.2 Vdc
Maximum Input Current All I
(VIN= V
Input No Load Current V
IN, min
to V
IN, max
, IO=I
)
O, max
= 0.75 Vdc I
O,set
IN,max
IN,No load
-0.3 15 Vdc
Vdc
IN,max
-40 85 °C
-55 125 °C
4.5 Adc
17 mA
(VIN = V
Input Stand-by Current All I
(VIN = V
, Io = 0, module enabled) V
IN, nom
, module disabled)
IN, nom
= 5.0Vdc I
O,set
IN,No load
IN,stand-by
100 mA
1.2 mA
Inrush Transient All I2t 0.4 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
IO= I
max,
; See Test configuration section)
Omax
IN, min
to V
IN,
All 30 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.
October 16, 2012 ©2012 General Electric Company. All rights reserved. Page 2
GE Energy
Data Sheet
6A Austin MicroLynxTMII: Non-Isolated DC-DC Power Modules
8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point All V
(VIN=V
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
) All
IN, max
to I
) All
O, max
to T
ref=TA, min
) All ⎯ 0.4
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
(VO= 90% of V
)
O, set
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
= 1.2Vdc η 80.0 %
O, set
= 1.5Vdc η 83.0 %
O,set
= 1.8Vdc η 83.5 %
O,set
= 2.5Vdc η 86.5 %
O,set
= 3.3Vdc η 89.0 %
O,set
= 5.0Vdc η 91.0 %
O,set
Switching Frequency All f
Switching Frequency (-30 Option) All f
O, max
O, max
o
O, lim
O, s/c
sw
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 V
-2.5%
0.7525 5.5 Vdc
+2.0 % V
O, set
⎯
+3.5% % V
O, set
O, set
⎯
⎯
⎯
⎯
0.3
0.4
⎯
⎯
⎯
15 30 mV
30 75 mV
% V
% V
% V
O, set
O, set
O, set
rms
pk-pk
⎯ ⎯
⎯ ⎯
1000 μF
3000 μF
0 6 Adc
⎯
⎯
200
2
⎯
⎯
% I
Adc
o
⎯
300
⎯
kHz
288 320 352 kHz
⎯
⎯
⎯
⎯
200
25
200
25
⎯
⎯
⎯
⎯
mV
μs
mV
μs
October 16, 2012 ©2012 General Electric Company. All rights reserved. Page 3
GE Energy
Data Sheet
6A Austin MicroLynxTMII: Non-Isolated DC-DC Power Modules
8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current
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
⎯
⎯
⎯
⎯
General Specifications
Parameter Min Typ Max Unit
Calculated MTBF (IO=I
Telecordia SR-332 Issue 1: Method 1 Case 3
Weight
, TA=25°C) 15,371,900 Hours
O, max
⎯
2.8 (0.1)
50
50
50
50
⎯
⎯
⎯
⎯
⎯
g (oz.)
mV
μs
mV
μs
October 16, 2012 ©2012 General Electric Company. All rights reserved. Page 4
GE Energy
Data Sheet
6A Austin MicroLynxTMII: Non-Isolated DC-DC Power Modules
8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current
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 — — 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 2.5 — V
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=I
Case 1: On/Off input is set to Logic Low (Module
O, max , VIN
= V
= 25 oC, )
IN, nom, TA
All Tdelay — 3 — msec
ON) and then input power is applied (delay from
=V
instant at which V
Case 2: Input power is applied for at least one second
until Vo=10% of Vo,set)
IN
IN, min
All Tdelay — 3 — msec
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%
o,set to 90% of Vo, set)
of V
All Trise
Output voltage overshoot – Startup —
IO= I
; VIN =V
O, max
Sequencing Delay time
Delay from V
to V
IN, min
, TA = 25 oC
IN, max
to application of voltage on SEQ pin All TsEQ-delay 10 msec
IN, min
V
IN, max
Vdc
IN,max
— 4 6 msec
1
% V
O, set
Tracking Accuracy (Power-Up: 2V/ms) All
(Power-Down: 1V/ms) All
(V
to V
; I
to I
IN, min
IN, max
O, min
Overtemperature Protection
VSEQ < Vo)
O, max
All T
(See Thermal Consideration section)
Input Undervoltage Lockout
Turn-on Threshold All
Turn-off Threshold All
SEQ –Vo |
|V
|V
SEQ –Vo |
ref
100 200 mV
300 500 mV
⎯
140
⎯
°C
7.9 V
7.8 V
October 16, 2012 ©2012 General Electric Company. All rights reserved. Page 5
V
GE Energy
Data Sheet
6A Austin MicroLynxTMII: Non-Isolated DC-DC Power Modules
8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current
Characteristic Curves
The following figures provide typical characteristics for the Austin MicroLynxTM II 12V SMT modules at 25ºC.
86
84
82
80
78
76
EFFICIENCY, η (%)
74
72
0 123456
VIN=8.3V
VIN=12V
VIN=14V
OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current
(Vout = 1.2Vdc).
88
86
84
82
80
78
EFFICIENCY, η (%)
76
74
VIN=8.3
VIN=12V
VIN=14V
0123456
OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)
Figure 2. Converter Efficiency versus Output Current
(Vout = 1.5Vdc).
88
86
84
82
80
78
EFFICIENCY, η (%)
76
74
01234 56
VIN=8.3V
VIN=12V
VIN=14V
OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)
Figure 3. Converter Efficiency versus Output Current (Vout
= 1.8Vdc).
Figure 4. Converter Efficiency versus Output Current (Vout =
2.5Vdc).
Figure 5. Converter Efficiency versus Output Current (Vout =
3.3Vdc).
Figure 6. Converter Efficiency versus Output Current (Vout =
5.0Vdc).
91
88
85
82
79
76
EFFICIENCY, η (%)
73
70
0123456
93
90
87
84
81
78
EFFICIENCY, η (%)
75
72
0123456
96
93
90
87
84
81
EFFICIENCY, η (%)
78
75
0 123456
VIN=8.3V
VIN=12V
VIN=14V
VIN=8.3V
VIN=12V
VIN=14V
VIN=8.3V
VIN=12V
VIN=14V
October 16, 2012 ©2012 General Electric Company. All rights reserved. Page 6
,
GE Energy
Data Sheet
6A Austin MicroLynxTMII: Non-Isolated DC-DC Power Modules
8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current
Characteristic Curves
The following figures provide typical characteristics for the MicroLynxTM II 12V SMT modules at 25ºC.
4.5
4
3.5
(A)
3
IN
2.5
2
1. 5
1
INPUT CURRENT, I
0.5
0
7 8 91011121314
Figure 7. Input voltage vs. Input Current
(Vout = 3.3Vdc).
(continued)
INPUT VOLTAGE, VIN (V)
Io = 6 A
Io=3 A
Io=0 A
(V) (100mV/div)
O
(A) (2A/div) V
O
OUTPUT CURRENT, OUTPUT VOLTAGE
I
TIME
t (5 μs/div)
Figure 10. Transient Response to Dynamic Load Change
from 50% to 100% of full load (Vo = 3.3Vdc).
(V) (10mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (2μs/div) TIME, t (5 μs/div)
Figure 8. Typical Output Ripple and Noise
(Vin = 12V dc, Vo = 2.5 Vdc, Io=6A).
(V) (10mV/div)
O
OUTPUT VOLTAGE
V
TIME, t (2μs/div) TIME, t (10μs/div)
Figure 9. Typical Output Ripple and Noise
(Vin = 12.0V dc, Vo = 3.3 Vdc, Io=6A).
(V) (100mV/div)
O
(A) (2A/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) (50mV/div)
O
(A) (2A/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).
October 16, 2012 ©2012 General Electric Company. All rights reserved. Page 7
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