LINEAGEPOWER PVX003A0X43-SRZ

Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A Output Current
Features
RoHS Compliant
Applications

Distributed power architectures

Intermediate bus voltage applications

Telecommunications equipment

Servers and storage applications

Networking equipment

Industrial equipment
Vin+
VIN
PGOOD
Vout+
VOUT
SENSE
MODULE
Cin
RTUNE
CTUNE
ON/OFF
Compliant to RoHS EU Directive 2002/95/EC (Z
versions)

Compatible in a Pb-free or SnPb reflow
environment (Z versions)

Compliant to IPC-9592 (September 2008),
Category 2, Class II

DOSA based

Wide Input voltage range (3Vdc-14.4Vdc). Ref. to
Figure 41 for corresponding output range

Output voltage programmable from 0.6Vdc to
5.5Vdc via external resistor

Tunable Loop
response

Power Good signal

Fixed switching frequency

Output overcurrent protection (non-latching)

Overtemperature protection

Remote On/Off

Ability to sink and source current

Cost efficient open frame design

Small size: 12.2 mm x 12.2 mm x 6.25 mm
(0.48 in x 0.48 in x 0.246 in)

Wide operating temperature range [-40°C to 85°C]

UL* 60950-1, 2nd Ed. Recognized, CSA† C22.2 No.
‡
nd
60950-1-07 Certified, and VDE (EN60950-1, 2
Ed.) Licensed

ISO** 9001 and ISO 14001 certified manufacturing
facilities
Co
TRIM
RTrim
GND

TM
to optimize dynamic output voltage
Description
TM
The 3A Analog Pico DLynx
power modules are non-isolated dc-dc converters that can deliver up to 3A of output
current. These modules operate over a wide range of input voltage (VIN = 3Vdc-14.4Vdc) and provide a precisely
regulated output voltage from 0.6Vdc to 5.5Vdc, programmable via an external resistor. Features include remote
On/Off, adjustable output voltage, over current and over temperature protection. The Tunable LoopTM feature allows
the user to optimize the dynamic response of the converter to match the load with reduced amount of output
capacitance leading to savings on cost and PWB area.
* 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: DS10-016 ver. 0.31
PDF name: PVX003A0X.pdf
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A 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
All
VIN
-0.3
15
Vdc
All
TA
-40
85
°C
All
Tstg
-55
125
°C
Input Voltage
Continuous
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
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
All
VIN
3
⎯
14.4
Vdc
Maximum Input Current
All
IIN,max
2.4
Adc
VO,set = 0.6 Vdc
IIN,No load
TBD
mA
VO,set = 5Vdc
IIN,No load
38
mA
Input Stand-by Current
(VIN = 12.0Vdc, module disabled)
All
IIN,stand-by
0.65
mA
Inrush Transient
All
It
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN =0 to
14V, IO= IOmax ; See Test Configurations)
All
15
mAp-p
Input Ripple Rejection (120Hz)
All
-60
dB
(VIN=3V to 14V, IO=IO, max )
Input No Load Current
(VIN = 12.0Vdc, IO = 0, module enabled)
LINEAGE POWER
2
1
2
As
2
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Output Voltage Set-point (with 0.1% tolerance for
external resistor used to set output voltage)
All
VO, set
-1.0
Output Voltage (Over all operating input voltage, resistive
load, and temperature conditions until end of life)
All
VO, set
-3.0
Adjustment Range (selected by an external resistor)
(Some output voltages may not be possible depending
on the input voltage – see Feature Descriptions Section)
All
VO
0.6
Remote Sense Range
All
Typ
⎯
Max
Unit
+1.0
% VO, set
+3.0
% VO, set
5.5
Vdc
0.5
Vdc
Output Regulation (for VO ≥ 2.5Vdc)
Line (VIN=VIN, min to VIN, max)
All
⎯
+0.4
% VO, set
Load (IO=IO, min to IO, max)
All
⎯
10
mV
mV
Output Regulation (for VO < 2.5Vdc)
Line (VIN=VIN, min to VIN, max)
All
⎯
5
Load (IO=IO, min to IO, max)
All
⎯
10
mV
Temperature (Tref=TA, min to TA, max)
All
⎯
0.4
% VO, set
50
100
mVpk-pk
20
38
mVrms
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 22 μF
ceramic capacitors)
Peak-to-Peak (5Hz to 20MHz bandwidth)
RMS (5Hz to 20MHz bandwidth)
External Capacitance
⎯
All
All
1
TM
Without the Tunable Loop
All
CO, max
10
⎯
22
μF
ESR ≥0.15 mΩ
All
CO, max
10
⎯
TBD
μF
ESR ≥ 10 mΩ
All
CO, max
10
⎯
TBD
μF
Output Current (in either sink or source mode)
All
Io
0
3
Adc
Output Current Limit Inception (Hiccup Mode)
(current limit does not operate in sink mode)
All
IO, lim
Output Short-Circuit Current
All
IO, s/c
ESR ≥ 1 mΩ
With the Tunable Loop
TM
200
% Io,max
0.5
Arms
(VO≤250mV) ( Hiccup Mode )
η
75
%
VIN= 12Vdc, TA=25°C
VO,set = 0.6Vdc
(8Vin)
VO, set = 1.2Vdc
η
82.8
%
IO=IO, max , VO= VO,set
VO,set = 1.8Vdc
η
88.2
%
VO,set = 2.5Vdc
η
89.9
%
VO,set = 3.3Vdc
η
91.6
%
VO,set = 5.0Vdc
η
93.9
%
All
fsw
Efficiency
Switching Frequency
1
⎯
600
⎯
kHz
TM
External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as
TM
getting the best transient response. See the Tunable Loop section for details.
LINEAGE POWER
3
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
General Specifications
Parameter
Calculated MTBF (IO=0.8IO, max, TA=40°C) Telecordia Issue 2
Method 1 Case 3
Device
Min
All
Max
19,508,839
⎯
Weight
Typ
Unit
Hours
0.89 (0.031)
⎯
g (oz.)
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
⎯
1
mA
⎯
VIN,max
V
On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Device is with suffix “4” – Positive Logic (See Ordering
Information)
Logic High (Module ON)
Input High Current
All
IIH
Input High Voltage
All
VIH
3.0
Logic Low (Module OFF)
Input Low Current
All
IIL
⎯
⎯
10
μA
Input Low Voltage
All
VIL
-0.2
⎯
0.3
V
Device Code with no suffix – Negative Logic (See Ordering
Information)
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Logic High (Module OFF)
Input High Current
All
IIH
―
―
1
mA
Input High Voltage
All
VIH
3.0
―
VIN, max
Vdc
Logic Low (Module ON)
Input low Current
All
IIL
―
―
10
μA
Input Low Voltage
All
VIL
-0.2
―
0.4
Vdc
All
Tdelay
―
4
―
msec
All
Tdelay
―
4.8
―
msec
All
Trise
―
2.8
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)
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)
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
o
Output voltage overshoot (TA = 25 C
―
msec
3.0
% VO, set
VIN= VIN, min to VIN, max,IO = IO, min to IO, max)
With or without maximum external capacitance
Over Temperature Protection
All
Tref
TBD
°C
(See Thermal Considerations section)
LINEAGE POWER
4
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Feature Specifications (cont.)
Parameter
Device
Symbol
Min
Typ
Max
Units
Input Undervoltage Lockout
Turn-on Threshold
All
Turn-off Threshold
All
2.69
3.0
Vdc
Vdc
Hysteresis
All
0.2
Vdc
112.5
%VO, set
87.5
%VO, set
30
Ω
PGOOD (Power Good)
Signal Interface Open Drain, Vsupply ≤ 5VDC
Overvoltage threshold for PGOOD
Undervoltage threshold for PGOOD
Pulldown resistance of PGOOD pin
LINEAGE POWER
All
5
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Pico DLynxTM at 0.6Vo and 25oC.
3.5
90
OUTPUT CURRENT, Io (A)
85
EFFICIENCY, η (%)
80
75
70
Vin=3.3V
Vin=6V
65
Vin=8V
60
55
50
0
0.5
1
1.5
2
2.5
3
LINEAGE POWER
Ruggedized (D)
Part (105°C)
2.0
1m/s
(200LFM)
2m/s
(400LFM)
1.5m/s
(300LFM)
1.5
55
65
75
85
95
105
OUTPUT VOLTAGE
VO (V) (10mV/div)
IO (A) (1Adiv)
TIME, t (20μs /div)
INPUT VOLTAGE
VIN (V) (5V/div)
VO (V) (200mV/div)
Figure 4. Transient Response to Dynamic Load Change
from 50% to 100% at 8Vin, Cout-1x47uF+2x330uF, CTune27nF, RTune-178
OUTPUT VOLTAGE
VON/OFF (V) (5V/div)
VO (V) (200mV/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Standard Part
(85°C)
Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT CURRENT,
VO (V) (20mV/div)
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
TIME, t (2ms/div)
2.5
AMBIENT TEMPERATURE, TA C
TIME, t (1μs/div)
Figure 3. Typical output ripple and noise (CO=10μF
ceramic, VIN = 8V, Io = Io,max, ).
NC
0.5m/s
(100LFM)
O
OUTPUT CURRENT, IO (A)
Figure 1. Converter Efficiency versus Output Current.
3.0
TIME, t (2ms/div)
Figure 6. Typical Start-up Using Input Voltage (VIN = 8V, Io =
Io,max).
6
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Pico DLynxTM at 1.2Vo and 25oC.
3.5
95
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
90
85
Vin=3.3 V
80
75
Vin=14.4V
Vin=12V
70
65
0
0.5
1
1.5
2
2.5
3
LINEAGE POWER
Ruggedized (D)
Part (105°C)
1m/s
(200LFM)
1.5
55
65
75
85
95
105
OUTPUT VOLTAGE
VO (V) (10mV/div)
IO (A) (1Adiv)
OUTPUT CURRENT,
TIME, t (20μs /div)
VIN (V) (5V/div)
Figure 10. Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout1x47uF+1x330uF, CTune-10nF & RTune-261
VO (V) (500mV/div)
VON/OFF (V) (5V/div)
VO (V) (500mV/div)
TIME, t (2ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io =
Io,max).
2.0
AMBIENT TEMPERATURE, TA C
INPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
Figure 9. Typical output ripple and noise (CO=10μF
ceramic, VIN = 12V, Io = Io,max, ).
0.5m/s
(100LFM)
Standard
Part (85 C)
Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE
TIME, t (1μs/div)
NC
2.5
O
OUTPUT CURRENT, IO (A)
Figure 7. Converter Efficiency versus Output Current.
3.0
TIME, t (2ms/div)
Figure 12. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
7
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Pico DLynxTM at 1.8Vo and 25oC.
3.5
100
1.5m/s
(300LFM)
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
95
90
Vin=3.3V
85
80
Vin=14.4V
Vin=12V
75
0
0.5
1
1.5
2
2.5
3
LINEAGE POWER
2.0
Ruggedized (D)
Part (105°C)
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5
55
65
75
85
95
105
OUTPUT VOLTAGE
VO (V) (10mV/div)
IO (A) (1Adiv)
TIME, t (20μs /div)
INPUT VOLTAGE
VIN (V) (5V/div)
VO (V) (500mV/div)
Figure 16. Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout1x47uF+1x330uF, CTune-10nF & RTune-261
OUTPUT VOLTAGE
VON/OFF (V) (5V/div)
VO (V) (500mV/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Standard Part
(85°C)
Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT CURRENT,
VO (V) (20mV/div)
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
TIME, t (2ms/div)
2.5
AMBIENT TEMPERATURE, TA C
TIME, t (1μs/div)
Figure 15. Typical output ripple and noise (CO=10μF
ceramic, VIN = 12V, Io = Io,max, ).
NC
O
OUTPUT CURRENT, IO (A)
Figure 13. Converter Efficiency versus Output Current.
3.0
TIME, t (2ms/div)
Figure 18. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
8
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Pico DLynxTM at 2.5Vo and 25oC.
3.5
100
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
95
90
Vin=4.5V
85
80
Vin=14.4
V
Vin=12V
75
70
0
0.5
1
1.5
2
2.5
3
2.0
Standard
Part (85°C)
1.5
Ruggedized (D)
Part (105°C)
1m/s
(200LFM)
1.0
55
65
75
85
95
105
OUTPUT VOLTAGE
VO (V) (50mV/div)
IO (A) (1Adiv)
TIME, t (20μs /div)
INPUT VOLTAGE
VIN (V) (5V/div)
VO (V) (1V/div)
Figure 22. Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout-2x47uF,
CTune-2700pF & RTune-261
OUTPUT VOLTAGE
VON/OFF (V) (5V/div)
VO (V) (1V/div)
LINEAGE POWER
0.5m/s
(100LFM)
AMBIENT TEMPERATURE, TA C
OUTPUT CURRENT,
VO (V) (20mV/div)
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
TIME, t (2ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io =
Io,max).
NC
2.5
Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (1μs/div)
Figure 21. Typical output ripple and noise (CO=10μF
ceramic, VIN = 12V, Io = Io,max, ).
3.0
O
OUTPUT CURRENT, IO (A)
Figure 19. Converter Efficiency versus Output Current.
1.5m/s
(300LFM)
TIME, t (2ms/div)
Figure 24. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
9
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Pico DLynx
100
OUTPUT CURRENT, Io (A)
EFFICIENCY, η (%)
90
Vin=4.5V
85
Vin=14.4V
Vin=12V
80
75
0
0.5
1
1.5
2
2.5
3
Ruggedized (D)
Part (105°C)
1m/s
(200LFM)
1.5
55
65
75
85
95
105
OUTPUTVOLTAGE
VO (V) (50mV/div)
IO (A) (1Adiv)
TIME, t (20μs /div)
INPUT VOLTAGE
VIN (V) (5V/div)
VO (V) (1V/div)
VON/OFF (V) (5V/div)
LINEAGE POWER
2.0
Figure 28. Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout-2x47uF,
CTune-2200pF & RTune-261
OUTPUT VOLTAGE
ON/OFF VOLTAGE
TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io =
Io,max).
0.5m/s
(100LFM)
Standard
Part (85°C)
Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (1μs/div)
Figure 27. Typical output ripple and noise (CO=10μF
ceramic, VIN = 12V, Io = Io,max, ).
NC
2.5
AMBIENT TEMPERATURE, TA C
OUTPUT CURRENT
VO (V) (20mV/div)
OUTPUT VOLTAGE
Figure 25. Converter Efficiency versus Output Current.
1.5m/s
(300LFM)
3.0
O
OUTPUT CURRENT, IO (A)
VO (V) (1V/div)
o
at 3.3Vo and 25 C.
3.5
95
OUTPUT VOLTAGE
TM
TIME, t (2ms/div)
Figure 30. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
10
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
Characteristic Curves
The following figures provide typical characteristics for the 3A Analog Pico DLynxTM at 5Vo and 25oC.
3.5
100
OUTPUT CURRENT, Io (A)
95
EFFICIENCY, η (%)
90
85
Vin=14.4V
80
Vin=8V
Vin=12V
75
70
65
60
0
0.5
1
1.5
2
2.5
3
1.5
45
55
65
75
85
95
105
VO (V) (50mV/div)
OUTPUT VOLTAGE
TIME, t (20μs /div)
INPUT VOLTAGE
VIN (V) (5V/div)
VO (V) (2V/div)
Figure 34. Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout-1x47uF,
CTune-820pF & RTune-261
OUTPUT VOLTAGE
VON/OFF (V) (5V/div)
VO (V) (2V/div)
0.5m/s
(100LFM)
Ruggedized (D)
Part (105°C)
IO (A) (1Adiv)
OUTPUT CURRENT,
VO (V) (20mV/div)
OUTPUT VOLTAGE
ON/OFF VOLTAGE
OUTPUT VOLTAGE
LINEAGE POWER
2.0
AMBIENT TEMPERATURE, TA C
TIME, t (1μs/div)
Figure 35. Typical Start-up Using On/Off Voltage (Io =
Io,max).
Standard
Part (85°C)
Figure 32. Derating Output Current versus Ambient
Temperature and Airflow.
Figure 31. Converter Efficiency versus Output Current.
TIME, t (2ms/div)
NC
2.5
O
OUTPUT CURRENT, IO (A)
Figure 33. Typical output ripple and noise (CO=10μF
ceramic, VIN = 12V, Io = Io,max, ).
1m/s
(200LFM)
3.0
TIME, t (2ms/div)
Figure 36. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
11
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Design Considerations
Input Filtering
The 3A Analog Pico DLynxTM module should be
connected to a low ac-impedance source. A highly
inductive source can affect the stability of the
module. An input capacitance must be placed
directly adjacent to the input pin of the module, to
minimize input ripple voltage and ensure module
stability.
To minimize input voltage ripple, ceramic capacitors
are recommended at the input of the module. Figure
37 shows the input ripple voltage for various output
voltages at 3A of load current with 1x22µF or
2x22µF ceramic capacitors and an input of 12V.
limit the capacitance to less than the maximum output
capacitance as specified in the electrical specification
table. Optimal performance of the module can be
achieved by using the Tunable LoopTM feature
described later in this data sheet.
70
60
Ripple (mVp-p)
Preliminary Data Sheet
January 19, 2012
1x10uF Ext
1x22uF Ext
1x47uF Ext
2x47uF Ext
50
40
30
20
10
0
0.5
110
1.5
2.5
3.5
4.5
Output Voltage(Volts)
5.5
1x22uF
100
2x22uF
90
Ripple (mVp-p)
Cap
Cap
Cap
Cap
80
Figure 38. Output ripple voltage for various output
voltages with external 1x10uF, 1x22uF, 1x47uF and
2x47uF ceramic capacitors at the output (3A load).
Input voltage is 12V.
70
60
Safety Considerations
50
For safety agency approval the power module must be
installed in compliance with the spacing and
separation requirements of the end-use safety agency
standards, i.e., UL 60950-1 2nd, CSA C22.2 No.
60950-1-07, DIN EN 60950-1:2006 + A11 (VDE0805
Teil 1 + A11):2009-11; EN 60950-1:2006 + A11:200903.
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 TBD A in the
positive input lead.
40
30
20
0.5
1.5
2.5
3.5
4.5
Output Voltage(Volts)
Figure 37. Input ripple voltage for various
output voltages with 1x22 µF or 2x22 µF ceramic
capacitors at the input (3A load). Input voltage is
12V.
Output Filtering
These 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
38 provides output ripple information for different
external capacitance values at various Vo and a full
load current of 3A. For stable operation of the module,
LINEAGE POWER
12
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Feature Descriptions
Monotonic Start-up and Shutdown
Remote On/Off
The module has monotonic start-up and shutdown
behavior for any combination of rated input voltage,
output current and operating temperature range.
TM
The 3A Analog Pico DLynx
power modules feature
an On/Off pin for remote On/Off operation. Two
On/Off logic options are available. In the Positive
Logic On/Off option, (device code suffix “4” – see
Ordering Information), the module turns ON during a
logic High on the On/Off pin and turns OFF during a
logic Low. With the Negative Logic On/Off option, (no
device code suffix, see Ordering Information), the
module turns OFF during logic High and ON during
logic Low. The On/Off signal should be always
referenced to ground. For either On/Off logic option,
leaving the On/Off pin disconnected will turn the
module ON when input voltage is present.
For positive logic modules, the circuit configuration for
using the On/Off pin is shown in Figure 39. When the
external transistor Q1 is in the OFF state, the internal
PWM Enable signal is pulled high through an internal
resistor and the external pullup resistor and the
module is ON. When transistor Q1 is turned ON, the
On/Off pin is pulled low and the module is OFF. A
suggested value for Rpullup is TBD
Startup into Pre-biased Output
The modules can start into a prebiased output as long
as the prebias voltage is 0.5V less than the set output
voltage.
Output Voltage Programming
The output voltage of the module is programmable to
any voltage from 0.6dc to 5.5Vdc by connecting a
resistor between the Trim and GND pins of the
module. Certain restrictions apply on the output
voltage set point depending on the input voltage.
These are shown in the Output Voltage vs. Input
Voltage Set Point Area plot in Fig. 41. The Upper Limit
curve shows that for output voltages lower than 1V, the
input voltage must be lower than the maximum of 12V.
The Lower Limit curve shows that for output voltages
higher than 0.6V, the input voltage needs to be larger
than the minimum of 3V.
16
TBA
14
Figure 39. Circuit configuration for using positive
On/Off logic.
12
VIN+
MODULE
Rpullup
Input Voltage
For negative logic On/Off modules, the circuit
configuration is shown in Fig. 40. The On/Off pin
should be pulled high with an external pull-up resistor
(suggested value for the 3V to 14.4V input range is
20Kohms). When transistor Q1 is in the OFF state, the
On/Off pin is pulled high, internal transistor Q4 is
turned ON and the module is OFF. To turn the module
ON, Q1 is turned ON pulling the On/Off pin low, turning
transistor Q4 OFF resulting in the PWM Enable pin
going high and the module turning ON.
Upper Limit
10
8
6
4
2
Lower Limit
0
0.5
1
3
3.5
4
4.5
5
5.5
6
VO (+)
VS+
ON/OFF
+
VON/OFF
Q1
GND
2.5
Figure 41. Output Voltage vs. Input Voltage Set
Point Area plot showing limits where the output
voltage can be set for different input voltages.
VIN(+)
ON/OFF
ON/OFF
2
Output Voltage
PWM Enable
I
1.5
22K
22K
Q4
LOAD
TRIM
CSS
Rtrim
_
GND
Figure 40. Circuit configuration for using negative
On/Off logic.
LINEAGE POWER
Figure 42. Circuit configuration for programming
output voltage using an external resistor.
13
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Without an external resistor between Trim and GND
pins, the output of the module will be 0.6Vdc. To
calculate the value of the trim resistor, Rtrim for a
desired output voltage, should be as per the following
equation:
Vo
Rmargin-down
MODULE
Q2
 12

Rtrim = 
 kΩ
 (Vo − 0.6) 
Trim
Rmargin-up
Rtrim is the external resistor in kΩ
Rtrim
Vo is the desired output voltage.
Q1
Table 1
VO, set (V)
0.6
0.9
1.0
1.2
1.5
1.8
2.5
3.3
5.0
Rtrim (KΩ)
Open
40
30
20
13.33
10
6.316
4.444
2.727
Remote Sense
The power module has a Remote Sense feature to
minimize the effects of distribution losses by regulating
the voltage at the SENSE pin. The voltage between
the SENSE pin and VOUT pin should not exceed 0.5V.
Voltage Margining
Output voltage margining can be implemented in the
module by connecting a resistor, Rmargin-up, from the
Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, Rmargin-down, from
the Trim pin to output pin for margining-down. Figure
43 shows the circuit configuration for output voltage
margining. The POL Programming Tool, available at
www.lineagepower.com under the Downloads section,
also calculates the values of Rmargin-up and Rmargin-down
for a specific output voltage and % margin. Please
consult your local Lineage Power technical
representative for additional details.
GND
Figure 43. Circuit Configuration for margining
Output voltage.
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.
Overtemperature 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
o
TBD C(typ) is exceeded at the thermal reference point
Tref . Once the unit goes into thermal shutdown it will
then wait to cool before attempting to restart.
Input Undervoltage 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.
Power Good
The module provides a Power Good (PGOOD) signal
that is implemented with an open-drain output to
indicate that the output voltage is within the regulation
limits of the power module. The PGOOD signal will be
de-asserted to a low state if any condition such as
overtemperature, overcurrent or loss of regulation
occurs that would result in the output voltage going
±10% outside the setpoint value. The PGOOD terminal
can be connected through a pullup resistor (suggested
value 100KΩ) to a source of 5VDC or lower.
Dual Layout
Identical dimensions and pin layout of Analog and
Digital Pico DLynx modules permit migration from one
to the other without needing to change the layout. To
support this, 2 separate Trim Resistor locations have
LINEAGE POWER
14
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
to be provided in the layout. For the digital modules,
the resistor is connected between the TRIM pad and
SGND and in the case of the analog module it is
connected between TRIM and GND
MODULE
TRIM
(PVX003 / PDT003)
Rtrim1
for
Digital
Rtrim2
for
Analog
SIG_GND
GND
Caution – Do not connect SIG_GND to GND
elsewhere in the layout
Figure 44. Layout to support either Analog or
Digital PicoDLynx on the same pad.
Tunable LoopTM
The 3A Pico DLynxTM modules have a feature that
optimizes transient response of the module called
Tunable LoopTM.
External capacitors are usually added to the output of
the module for two reasons: to reduce output ripple
and noise (see Figure 38) and to reduce output voltage
deviations from the steady-state value in the presence
of dynamic load current changes. Adding external
capacitance however affects the voltage control loop of
the module, typically causing the loop to slow down
with sluggish response. Larger values of external
capacitance could also cause the module to become
unstable.
TM
The Tunable Loop allows the user to externally
adjust the voltage control loop to match the filter
network connected to the output of the module. The
Tunable LoopTM is implemented by connecting a series
R-C between the SENSE and TRIM pins of the
module, as shown in Fig. 45. This R-C allows the user
to externally adjust the voltage loop feedback
compensation of the module.
VOUT
SENSE
RTUNE
MODULE
CO
CTUNE
TRIM
GND
RTrim
Figure. 45. Circuit diagram showing connection of
RTUME and CTUNE to tune the control loop of the
module.
Recommended values of RTUNE and CTUNE for different
output capacitor combinations are given in Tables 2
and 3. Table 2 shows the recommended values of
RTUNE and CTUNE for different values of ceramic output
capacitors up to 1000uF that might be needed for an
application to meet output ripple and noise
requirements. Selecting RTUNE and CTUNE according to
Table 2 will ensure stable operation of the module.
In applications with tight output voltage limits in the
presence of dynamic current loading, additional output
capacitance will be required. Table 3 lists
recommended values of RTUNE and CTUNE in order to
meet 2% output voltage deviation limits for some
common output voltages in the presence of a 1.5A to
3A step change (50% of full load), with an input
voltage of 12V.
LINEAGE POWER
15
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
Please contact your Lineage Power technical
representative to obtain more details of this feature as
well as for guidelines on how to select the right value
of external R-C to tune the module for best transient
performance and stable operation for other output
capacitance values or input voltages other than 12V.
Table 2. General recommended values of of RTUNE
and CTUNE for Vin=12V and various external
ceramic capacitor combinations.
Co
1x47μF
2x47μF
RTUNE
270
220
4x47μF 6x47μF 10x47μF
180
180
180
CTUNE 1500pF 1800pF 3300pF 4700pF 4700pF
Table 3. Recommended values of RTUNE and CTUNE
to obtain transient deviation of 2% of Vout for a
1.5A step load with Vin=12V.
Vo
Co
5V
3.3V
2.5V
1.8V
1.2V
1x47μF 1x47μF 2x47μF 1x330μF 1x330μF 2x330μF
Polymer Polymer Polymer
RTUNE
270
220
180
180
180
CTUNE 1500pF 1800pF 3300pF 8200pF 8200pF
ΔV
0.6V
68mV
60mV
37mV
18mV
18mV
180
33nF
10mV
Note: The capacitors used in the Tunable Loop
tables are 47 μF/3 mΩ ESR ceramic and
330 μF/12 mΩ ESR polymer capacitors.
LINEAGE POWER
16
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
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 46. The preferred airflow direction
for the module is in Figure 47.
25.4_
(1.0)
Wind Tunnel
PWBs
Figure 47. Preferred airflow direction and location
of hot-spot of the module (Tref).
Power Module
76.2_
(3.0)
x
12.7_
(0.50)
Probe Location
for measuring
airflow and
ambient
temperature
Air
flow
Figure 46. Thermal Test Setup.
The thermal reference points, Tref used in the
specifications are also shown in Figure 47. For reliable
operation the temperatures at these points should not
o
exceed 120 C. 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 BoardMounted Power Modules” for a detailed discussion of
thermal aspects including maximum device
temperatures.
LINEAGE POWER
17
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Example Application Circuit
Requirements:
Vin:
12V
Vout:
1.8V
Iout:
2.25A max., worst case load transient is from 1.5A to 2.25A
ΔVout:
Vin, ripple
1.5% of Vout (27mV) for worst case load transient
1.5% of Vin (180mV, p-p)
Vin+
VIN
PGOOD
+
CI1
CI2
Vout+
VOUT
SENSE
RTUNE
MODULE
+
CTUNE
ON/OFF
GND
CO1
TRIM
RTrim
CI1
1x22μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20 or equivalent)
CI2
47μF/16V bulk electrolytic
CO1
CO2
CTune
RTune
2 x 47μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19 or equivalent)
None
2200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
261 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim
10kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
LINEAGE POWER
CO2
18
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Preliminary Data Sheet
January 19, 2012
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.)
17
16
PIN
FUNCTION
PIN
FUNCTION
1
2
3
4
ON/OFF
VIN
GND
VOUT
VS+
(SENSE)
TRIM
GND
NC
NC
10
11
12
13
PGOOD
NC
NC
NC
14
NC
15
16
17
NC
NC
NC
5
6
7
8
9
13
14
12
15
11
7
8
9
Bottom View
LINEAGE POWER
19
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
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.)
16
17
13
12
11
9
LINEAGE POWER
8
7
14
15
PIN
FUNCTION
PIN
FUNCTION
1
2
3
4
5
6
7
8
9
ON/OFF
VIN
GND
VOUT
VS+ (SENSE)
TRIM
GND
NC
NC
10
11
12
13
14
15
16
17
PGOOD
NC
NC
NC
NC
NC
NC
NC
20
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Packaging Details
The 12V Analog Pico DLynxTM 3A modules are supplied in tape & reel as standard. Modules are shipped in quantities
of 200 modules per reel.
All Dimensions are in millimeters and (in inches).
Reel Dimensions:
Outside Dimensions:
Inside Dimensions:
Tape Width:
LINEAGE POWER
330.2 mm (13.00)
177.8 mm (7.00”)
24.00 mm (0.945”)
21
Document No: DS10-016 ver. 0.31
PDF name: PVX003A0X.pdf
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Surface Mount Information
Pick and Place
The 12VAnalog Pico DLynxTM 3A 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
o
temperatures of up to 300 C. The label also carries
product information such as product code, serial
number and the location of manufacture.
Nozzle Recommendations
The module weight has been kept to a minimum by
using open frame construction. Variables such as
nozzle size, tip style, vacuum pressure and placement
speed should be considered to optimize this process.
The minimum recommended inside nozzle diameter
for reliable operation is 3mm. The maximum nozzle
outer diameter, which will safely fit within the allowable
component spacing, is 7 mm.
Bottom Side / First Side Assembly
This module is not recommended for assembly on the
bottom side of a customer board. If such an assembly
is attempted, components may fall off the module
during the second reflow process.
The thermocouple should be attached to this test
pad since this will be the coolest solder joints. The
temperature of this point should be:
Maximum peak temperature is 260 C.
Minimum temperature is 235 C.
Dwell time above 217 C: 60 seconds minimum
Dwell time above 235 C: 5 to 15 second
MSL Rating
The 12VAnalog Pico DLynxTM 3A modules have a MSL
rating of 1.
Storage and Handling
The recommended storage environment and handling
procedures for moisture-sensitive surface mount
packages is detailed in J-STD-033 Rev. B (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.
Lead Free Soldering
The 12VAnalog Pico DLynxTM 3A modules are leadfree (Pb-free) and RoHS compliant and
are both forward and backward compatible in a Pbfree 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 5-2). The
suggested Pb-free solder paste is Sn/Ag/Cu (SAC).
For questions regarding LGA, solder volume; please
contact Lineage Power for special manufacturing
process instructions.
The recommended linear reflow profile using Sn/Ag/Cu
solder is shown in Fig. 48. Soldering outside of the
recommended profile requires testing to verify results
and performance.
Figure 48. Recommended linear reflow profile
using Sn/Ag/Cu solder.
Post Solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect
both the reliability of a power module and the testability
of the finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Board Mounted Power Modules: Soldering and
Cleaning Application Note (AN04-001).
It is recommended that the pad layout include a test
pad where the output pin is in the ground plane.
LINEAGE POWER
22
Preliminary Data Sheet
January 19, 2012
3A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 3A output current
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 4. Device Codes
Device Code
Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic
Sequencing
Comcodes
PVX003A0X3-SRZ
3 – 14.4Vdc
0.6 – 5.5Vdc
3A
Negative
No
CC109159562
PVX003A0X43-SRZ
3 – 14.4Vdc
0.6 – 5.5Vdc
3A
Positive
No
CC109159570*
-Z refers to RoHS compliant parts
*Please contact Lineage Power for more information
Table 5. Coding Scheme
Package
Identifier
P
P=Pico
U=Micro
M=Mega
G=Giga
Family Input
voltage
range
Output
current
Output
voltage
On/Off
logic
Remote
Sense
Options
ROHS
Compliance
X
4
3
-SR
Z
3=
Remote
Sense
S = Surface
Mount
R = Tape &
Reel
Z = ROHS6
V
X
003A0
D=Dlynx
Digital
T=with EZ
Sequence
3A
V=
DLynx
Analog.
X=without
sequencing
X=
4=
programmable positive
output
No entry
=
negative
No entry =
negative
Asia-Pacific Headquarters
Tel: +86.021.54279977*808
World Wide Headquarters
Lineage Power Corporation
601 Shiloh Road, Plano, TX 75074, USA
+1-888-LINEAGE(546-3243)
(Outside U.S.A.: +1-972-244-WATT(9288))
www.lineagepower.com
e-mail: [email protected]
Europe, Middle-East and Africa Headquarters
Tel: +49.89.878067-280
India Headquarters
Tel: +91.80.28411633
Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or
application. No rights under any patent accompany the sale of any such product(s) or information.
Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.
© 2011 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.
LINEAGE POWER
23
Document No: DS10-016 ver. 0.31
PDF name: PVX003A0X.pdf