APXH003A0X-SRZ - GE - Datasheet.Live

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-Isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A 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: DS06-131 ver. 1.14

PDF name: APTH003A0X_ds.pdf

Features

 Compliant to RoHS EU Directive 2002/95/EC

(Z versions)

 Compatible in a Pb-free or SnPb reflow

environment (Z versions)

 Wide Input voltage range (2.4Vdc-5.5Vdc)

 Output voltage programmable from 0.6Vdc to 3.63

Vdc via external resistor

 Tunable LoopTM to optimize dynamic output

voltage response

 Flexible output voltage sequencing EZ-

SEQUENCE – APTH versions

 Remote sense

 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 0.25 in)

 Wide operating temperature range (-40°C to 85°C)

 UL* 60950-1Recognized, CSA† C22.2 No.

60950-1-03 Certified, and VDE‡ 0805:2001-12

(EN60950-1) 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

 Industrial equipment

Description

The Pico TLynxTM 3A 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 = 2.4Vdc-5.5Vdc) and provide a precisely regulated

output voltage from 0.6Vdc to 3.63Vdc, programmable via an external resistor. Features include remote On/Off,

adjustable output voltage, over current and overtemperature protection, and output voltage sequencing (APTH

versions). A new feature, the Tunable LoopTM , 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.

TRIM

VOUT

SENSE

GND

CTUNE

RTUNE

RTrim

VIN

Cin

Vin+ Vout+

ON/OFF

SEQ

MODULE

RoHS Compliant

EZ-SEQUENCETM

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are

absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in

excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for

extended periods can adversely affect the device reliability.

Parameter Device Symbol Min Max Unit

Input Voltage All VIN -0.3 6 Vdc

Continuous

Sequencing Voltage APTH VSEQ -0.3 ViN, Max Vdc

Operating Ambient Temperature All TA -40 85 °C

(see Thermal Considerations section)

Storage Temperature All Tstg -55 125 °C

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature

conditions.

Parameter Device Symbol Min Typ Max Unit

Operating Input Voltage All VIN 2.4

⎯ 5.5 Vdc

Maximum Input Current All IIN,max 3.5 Adc

(VIN=2.4V to 5.5V, IO=IO, max )

Input No Load Current VO,set = 0.6 Vdc IIN,No load 26 mA

(VIN = 5.0Vdc, IO = 0, module enabled) VO,set = 3.3Vdc IIN,No load 75 mA

Input Stand-by Current All IIN,stand-by 2.1 mA

(VIN = 5.0Vdc, module disabled)

Inrush Transient All I2t 1 A2s

Input Reflected Ripple Current, peak-to-peak

(5Hz to 20MHz, 1μH source impedance; VIN =0 to

5.5V, IO= IOmax ; See Test Configurations)

All 25 mAp-p

Input Ripple Rejection (120Hz) All 40 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 an

integrated part of sophisticated 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 5A (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.

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point (with 0.5% tolerance for

external resistor used to set output voltage) All VO, set -1.5 +1.5 % VO, set

Output Voltage All VO, set -3.0 ⎯ +3.0 % VO, set

(Over all operating input voltage, resistive load,

and temperature conditions until end of life)

Adjustment Range All VO 0.6 3.63 Vdc

Selected by an external resistor

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

Output Regulation (for VO < 2.5Vdc)

Line (VIN=VIN, min to VIN, max) All

⎯ 10 mV

Load (IO=IO, min to IO, max) All

⎯ 5 mV

Temperature (Tref=TA, min to TA, max) All

⎯ 0.4 % VO, set

Remote Sense Range All 0.5 V

Output Ripple and Noise on nominal output

(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF //

10 μF ceramic capacitors)

Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 20 35 mVpk-pk

RMS 15 25 mVrms

External Capacitance1

Without the Tunable LoopTM

ESR ≥ 1 mΩ All CO, max 0 ⎯ 47 μF

With the Tunable LoopTM

ESR ≥ 0.15 mΩ All CO, max 0 ⎯ 1000 μF

ESR ≥ 10 mΩ All CO, max 0 ⎯ 3000 μF

Output Current All Io 0 3 Adc

Output Current Limit Inception (Hiccup Mode ) All IO, lim 200 % Io,max

Output Short-Circuit Current All IO, s/c 0.12 Adc

(VO≤250mV) ( Hiccup Mode )

Efficiency VO,set = 0.6Vdc η 81.2 %

VIN= 3.3Vdc, TA=25°C VO, set = 1.2Vdc η 89.4 %

IO=IO, max , VO= VO,set V

O,set = 1.8Vdc η 91.4 %

O,set = 2.5Vdc η 93.9 %

VIN= 5Vdc VO,set = 3.3Vdc η 94.4 %

Switching Frequency All fsw ⎯ 600 ⎯ kHz

Dynamic Load Response

(dIo/dt=10A/μs; VIN = 5V; Vout = 1.5V, TA=25°C)

Load Change from Io= 0% to 50% of Io,max;

Co = 0

Peak Deviation All Vpk 90 mV

Settling Time (Vo<10% peak deviation) All ts 20 μs

Load Change from Io= 50% to 0% of Io,max:

Co = 0

Peak Deviation All Vpk 100 mV

Settling Time (Vo<10% peak deviation) All ts 20 μs

1 External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as

getting the best transient response. See the Tunable LoopTM section for details.

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO=0.8IO, max, TA=40°C) Telcordia Issue 2 Method

1 Case 3 16,139,760 Hours

Weight ⎯ 1.55 (0.0546) ⎯ 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 Units

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 ⎯ 10 µA

Input High Voltage All VIH 1.2 ⎯ VIN,max V

Logic Low (Module OFF)

Input Low Current All IIL ⎯ ⎯ 0.3 mA

Input Low Voltage All VIL -0.3 ⎯ 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 V

IN – 1.6 ― V

IN, max Vdc

Logic Low (Module ON)

Input low Current All IIL ― ― 0.2 mA

Input Low Voltage All VIL -0.2 ― V

IN – 1.6 Vdc

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 ― 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 ― msec

Output voltage Rise time (time for Vo to rise from

10% of Vo, set to 90% of Vo, set) All Trise ― 5 ― msec

Output voltage overshoot (TA = 25oC 3.0

% VO,

VIN= VIN, min to VIN, max,IO = IO, min to IO, max)

With or without maximum external capacitance

Over Temperature Protection All Tref 140 °C

(See Thermal Considerations section)

Sequencing Delay time

Delay from VIN, min to application of voltage on SEQ

pin APTH TsEQ-delay 10 msec

Tracking Accuracy (Power-Up: 2V/ms) APTH VSEQ –Vo 100 mV

(Power-Down: 2V/ms) APTH VSEQ –Vo 100 mV

(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Feature Specifications (cont.)

Parameter Device Symbol Min Typ Max Units

Input Undervoltage Lockout

Turn-on Threshold All 2.2 Vdc

Turn-off Threshold All 1.75 Vdc

Hysteresis All

0.08 0.2 Vdc

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Characteristic Curves

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 0.6Vo and at 25oC.

EFFICIENCY, η (%)

00.511.522.53

Vin=5.5V

Vin=2.4V

Vin=3.3V

OUTPUT CURRENT, Io (A)

0.5

1. 5

2.5

3.5

20 30 40 50 60 70 80 90

0 LFM

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (100mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 3. Typical output ripple and noise (VIN = 5V, Io =

Io,max).

Figure 4. Transient Response to Dynamic Load

Change from 0% to 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (200mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (200mV/div)

TIME, t (1ms/div) TIME, t (1ms/div)

Figure 5. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 6. Typical Start-up Using Input Voltage (VIN =

5V, Io = Io,max).

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 1.2Vo and at 25oC.

EFFICIENCY, η (%)

00.511.522.53

Vin=5.5V

Vin=2.4V

Vin=3.3V

OUTPUT CURRENT, Io (A)

0.5

1. 5

2.5

3.5

20 30 40 50 60 70 80 90

0 LFM

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (100mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 9. Typical output ripple and noise (VIN = 5V, Io =

Io,max).

Figure 10. Transient Response to Dynamic Load

Change from 0% to 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (500mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (500mV/div)

TIME, t (1ms/div) TIME, t (1ms/div)

Figure 11. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 12. Typical Start-up Using Input Voltage (VIN =

5V, Io = Io,max).

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 1.8Vo and at 25oC.

EFFICIENCY, η (%)

00.511.522.53

Vin=5.5V

Vin=2.4V

Vin=3.3V

OUTPUT CURRENT, Io (A)

0.5

1. 5

2.5

3.5

20 30 40 50 60 70 80 90

0 LFM

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUT

PUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 15. Typical output ripple and noise (VIN = 5V, Io =

Io,max).

Figure 16. Transient Response to Dynamic Load

Change from 0% to 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (500mV/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (1V/div)

TIME, t (1ms/div) TIME, t (1ms/div)

Figure 17. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 18. Typical Start-up Using Input Voltage (VIN =

5V, Io = Io,max).

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 2.5Vo and at 25oC.

EFFICIENCY, η (%)

100

0 0.5 1 1.5 2 2.5 3

Vin=5.5V

Vin=3V

Vin=3.3V

OUTPUT CURRENT, Io (A)

0.5

1. 5

2.5

3.5

20 30 40 50 60 70 80 90

0 LFM

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 21. Typical output ripple and noise (VIN = 5V, Io =

Io,max).

Figure 22. Transient Response to Dynamic Load

Change from 0% to 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (5V/div) VO (V) (1V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (1V/div)

TIME, t (1ms/div) TIME, t (1ms/div)

Figure 23. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 24. Typical Start-up Using Input Voltage (VIN =

5V, Io = Io,max).

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 10

Characteristic Curves (continued)

The following figures provide typical characteristics for the Pico TLynxTM 3A modules at 3.3Vo and at 25oC.

EFFICIENCY, η (%)

100

0 0.5 1 1.5 2 2.5 3

Vin=5.5V

Vin=4V

Vin=5V

OUTPUT CURRENT, Io (A)

0.5

1. 5

2.5

3.5

20 30 40 50 60 70 80 90

0 LFM

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient

Temperature and Airflow.

OUTPUT VOLTAGE

VO (V) (20mV/div)

OUTPUT

CURRENT

OUTPUT

VOLTAGE

IO (A) (1Adiv) VO (V) (200mV/div)

TIME, t (1μs/div) TIME, t (20μs /div)

Figure 27. Typical output ripple and noise (VIN = 5V, Io =

Io,max).

Figure 28. Transient Response to Dynamic Load

Change from 0% 50% to 0% with VIN=5V.

ON/OFF VOLTAGE OUTPUT VOLTAGE

VON/OFF (V) (2V/div) VO (V) (1V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

VIN (V) (2V/div) VO (V) (1V/div)

TIME, t (1ms/div) TIME, t (1ms/div)

Figure 29. Typical Start-up Using On/Off Voltage (Io =

Io,max).

Figure 30. Typical Start-up Using Input Voltage (VIN =

5V, Io = Io,max).

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

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Test Configurations

TO OSCILLOSCOPE CURRENT PROBE

LTEST

1μH

BATTERY

CS 1000μF

Electrolytic

E.S.R.<0.1Ω

@ 20°C 100kHz

2x100μF

Tantalum

VIN(+)

COM

NOTE: Measure input reflected ripple current with a simulated

source inductance (LTEST) of 1μH. Capacitor CS offsets

possible battery impedance. Measure current as shown

above.

CIN

Figure 31. Input Reflected Ripple Current Test

Setup.

NOTE: All voltage measurements to be taken at the m odule

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.

Vo+

COM

0.1u F

RESISTIVE

LOAD

SCOPE U SING

BNC SOCK ET

COPPER STRIP

GROUND PLANE

10uF

Figure 32. Output Ripple and Noise Test Setup.

COM

VIN(+)

COM

RLOAD

Rcontac t Rdistribution

Rcontact

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 33. Output Voltage and Efficiency Test

Setup.

η =

VO. IO

VIN. IIN

x 100 %

Efficiency

Design Considerations

Input Filtering

The Pico TLynxTM 3A 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, low-ESR ceramic

capacitors are recommended at the input of the

module. Figure 34 shows the input ripple voltage for

various output voltages at 3A of load current with 1x22

µF or 2x22 µF ceramic capacitors and an input of 5V.

Figure 35 shows data for the 3.3Vin case, with 1x22µF

or 2x22µF of ceramic capacitors at the input.

Input Ripple Voltage (mVp-p)

0.5 1 1.5 2 2.5 3 3.5

1x22uF

2x22uF

Output Voltage (Vdc)

Figure 34. Input ripple voltage for various output

voltages with 1x22 µF or 2x22 µF ceramic

capacitors at the input (3A load). Input voltage is

5V.

Input Ripple Voltage (mVp-p)

0.511.522.53

1x22uF

2x22uF

Output Voltage (Vdc)

Figure 35. Input ripple voltage in mV, p-p for

various output voltages with 1x22 µF or 2x22 µF

ceramic capacitors at the input (3A load). Input

voltage is 3.3V.

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 12

Output Filtering

The Pico TLynxTM 3A 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

ceramic and polymer capacitors are recommended to

improve the dynamic response of the module. Figure

36 provides output ripple information for different

external capacitance values at various Vo and for load

currents of 3A while maintaining an input voltage of

5V. Fig 37 shows the performance with a 3.3V input.

For stable operation of the module, 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 Loop feature described

later in this data sheet.

0.5 1 1.5 2 2.5 3 3.5

Output Voltage(Volts)

Ripple(mVp-p)

1x10uF External Cap

1x47uF External cap

2x47uF External Cap

4x47uF external Cap

Figure 36. Output ripple voltage for various output

voltages with external 1x10 µF, 1x47 µF, 2x47 µF or

4x47 µF ceramic capacitors at the output (3A load).

Input voltage is 5V.

0.511.522.53

Output Voltage(Volts)

Ripple(mVp-p)

1x10uF External Cap

1x47uF External cap

2x47uF External Cap

4x47uF external Cap

Figure 37. Output ripple voltage for various output

voltages with external 1x10 µF, 1x47 µF, 2x47 µF or

4x47 µF ceramic capacitors at the output (3A load).

Input voltage is 3.3V.

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 fast-

acting fuse with a maximum rating of 5A in the positive

input lead.

Feature Descriptions

Remote On/Off

The Pico TLynxTM 3A 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

is 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 38. When the

external transistor Q1 is in the OFF state, Q2 is ON,

the internal PWM Enable signal is pulled low and the

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 13

module is ON. When transistor Q1 is turned ON, the

On/Off pin is pulled low, Q2 is turned off and the

internal PWM Enable signal is pulled high through the

100K internal pull-up resistor and the module is OFF.

Figure 38. Circuit configuration for using positive

On/Off logic.

For negative logic On/Off modules, the circuit

configuration is shown in Fig. 39. The On/Off pin

should be pulled high with an external pull-up resistor

(suggested value for the 2.4V to 5.5Vin range is

3.6Kohms). When transistor Q1 is in the OFF state, the

On/Off pin is pulled high and the module is OFF. The

On/Off threshold for logic High on the On/Off pin

depends on the input voltage and its minimum value is

VIN – 1.6V. To turn the module ON, Q1 is turned ON

pulling the On/Off pin low.

100K

GND

PWM Enable

ON/OFF

VIN+

ON/OFF

MODULE

Rpullup

ON/OFF

2.05K

20K

Figure 39. Circuit configuration for using negative

On/Off logic.

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 140oC 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 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.

Output Voltage Programming

The output voltage of the Pico TLynxTM 3A modules

can be programmed to any voltage from 0.6Vdc to

3.63Vdc 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. 40. The

Upper Limit curve shows that the entire output voltage

range is available with the maximum input voltage of

5.5V. The Lower Limit curve shows that for output

voltages of 1.8V and higher, the input voltage needs to

be larger than the minimum of 2.4V.

0.5 1 1.5 2 2.5 3 3.5 4

Output Voltage (V)

Input Voltage (v)

Upper Limit

Lower Limit

Figure 40. Output Voltage vs. Input Voltage Set

Point Area plot showing limits where the output

voltage can be set for different input voltages.

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, use the following equation:

()













−

Rtrim

6.0

2.1

100K

GND

PWM Enable

ON/OFF

VIN+

ON/OFF

MODULE

ON/OFF

20K

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 14

Rtrim is the external resistor in kΩ

Vo is the desired output voltage.

Table 1 provides Rtrim values required for some

common output voltages.

Table 1

VO, set (V) Rtrim (KΩ)

0.6 Open

1.0 3.0

1.2 2.0

1.5 1.333

1.8 1.0

2.5 0.632

3.3 0.444

By using a ±0.5% tolerance trim resistor with a TC of

±25ppm, a set point tolerance of ±1.5% can be

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 trim resistor

needed for a specific output voltage.

VO+

TRIM

GND

Rtrim

LOAD

VIN+

ON/OFF

SENSE

Figure 41. Circuit configuration for programming

output voltage using an external resistor.

Remote Sense

The Pico TLynxTM 3A modules have 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 must not

exceed 0.5V. Note that the output voltage of the

module cannot exceed the specified maximum value.

This includes the voltage drop between the SENSE

and Vout pins. When the Remote Sense feature is not

being used, connect the SENSE pin to the VOUT pin.

Voltage Margining

Output voltage margining can be implemented in the

Pico TLynxTM 3A 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 42 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.

MODULE

GND

Trim

Rtrim

Rmargin-up

Rmargin-down

Figure 42. Circuit Configuration for margining

Output voltage

Monotonic Start-up and Shutdown

The Pico TLynxTM 3A modules have monotonic start-

up and shutdown behavior for any combination of

rated input voltage, output current and operating

temperature range.

Startup into Pre-biased Output

The 5.5V Pico TLynxTM 6A modules can start into a

prebiased output as long as the prebias voltage is 0.5V

less than the set output voltage. Note that prebias

operation is not supported when output voltage

sequencing is used.

Output Voltage Sequencing

The Pico TLynxTM modules include a sequencing

feature, EZ-SEQUENCE that enables users to

implement various types of output voltage sequencing

in their applications. This is accomplished via an

additional sequencing pin. When not using the

sequencing feature, either tie the SEQ pin to VIN or

leave it unconnected.

When an analog voltage is applied to the SEQ pin, the

output voltage tracks this voltage until the output

reaches the set-point voltage. The final value of the

SEQ voltage must be set higher than the set-point

voltage of the module. The output voltage follows the

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 15

voltage on the SEQ pin on a one-to-one volt basis. By

connecting the SEQ pins of multiple modules together,

all modules can track their output voltages to the

voltage applied on the SEQ pin.

For proper voltage sequencing, first, input voltage is

applied to the module. The On/Off pin of the module is

left unconnected (or tied to GND for negative logic

modules or tied to VIN for positive logic modules) so

that the module is ON by default. After applying input

voltage to the module, a minimum 10msec delay is

required before applying voltage on the SEQ pin. This

delay gives the module enough time to complete its

internal power-up soft-start cycle. During the delay

time, the SEQ pin should be held close to ground

(nominally 50mV ± 20 mV). This is required to keep the

internal op-amp out of saturation thus preventing

output overshoot during the start of the sequencing

ramp. By selecting resistor R1 (see fig. 43) according

to the following equation

05.0

24950

−

Rohms,

the voltage at the sequencing pin will be 50mV when

the sequencing signal is at zero.

GND

VIN+

SEQ

OUT

10K

499K

MODULE

Figure 43. Circuit showing connection of the

sequencing signal to the SEQ pin.

After the 10msec delay, an analog voltage is applied to

the SEQ pin and the output voltage of the module will

track this voltage on a one-to-one volt bases until 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

voltage of the modules tracks the voltages below their

set-point voltages on a one-to-one basis. A valid input

voltage must be maintained until the tracking and

output voltages reach ground potential.

When using the EZ-SEQUENCETM feature to control

start-up of the module, pre-bias immunity 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 the voltage at the SEQ pin is applied. This

will result in the module sinking current if a pre-bias

voltage is present at the output of the module. When

pre-bias immunity during start-up is required, the EZ-

SEQUENCETM feature must be disabled. For

additional guidelines on using the EZ-SEQUENCETM

feature please refer to Application Note AN04-008

“Application Guidelines for Non-Isolated Converters:

Guidelines for Sequencing of Multiple Modules”, or

contact the Lineage Power technical representative for

additional information.

Tunable Loop

The 5V Pico TLynxTM 3A modules have a new 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 Figures 36 and 37) 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.

The Tunable LoopTM allows the user to externally

adjust the voltage control loop to match the filter

network connected to the output of the module. The

Tunable Loop is implemented by connecting a series

R-C between the SENSE and TRIM pins of the

module, as shown in Fig. 44. This R-C allows the user

to externally adjust the voltage loop feedback

compensation of the module.

Figure. 44. Circuit diagram showing connection of

RTUME and CTUNE to tune the control loop of the

module.

MODULE

VOUT

SENSE

TRIM

GND

RTUNE

CTUNE

RTrim

C O

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 16

Recommended values of RTUNE and CTUNE for different

output capacitor combinations are given in Tables 2, 3,

4 and 5. Tables 2 and 4 show the recommended

values of RTUNE and CTUNE for different values of

ceramic output capacitors up to 470uF that might be

needed for an application to meet output ripple and

noise requirements for 5Vin and 3.3Vin respectively.

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. Tables 3 and 5 list

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 5Vin and 3.3Vin respectively

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 3.3 or

5V.

Table 2. General recommended values of of RTUNE

and CTUNE for Vin=5V and various external ceramic

capacitor combinations.

Co 1x47μF 2x47μF 4x47μF 6x47μF10x47μF

RTUNE 33 33 33 33 33

CTUNE 6800pF 15nF 33nF 47nF 56nF

Table 3. Recommended values of RTUNE and CTUNE

to obtain transient deviation of ≤2% of Vout for a

1.5A step load with Vin=5V.

Vo 3.3V 2.5V 1.8V 1.2V 0.6V

Co 1 x

47μF

2 x

47μF

2 x

47μF

4 x

47μF

2 x 47μF

+330μF

Polymer

RTUNE 33 33 33 33 33

CTUNE 6800pF 15nF 15nF 33nF 82nF

ΔV 59mV 35mV 35mV 21mV 12mV

Table 4. General recommended values of of RTUNE

and CTUNE for Vin=3.3V and various external

ceramic capacitor combinations.

Co 1x47μF 2x47μF 4x47μF 6x47μF10x47μF

RTUNE 33 33 33 33 33

CTUNE 15nF 27nF 47nF 56nF 68nF

Table 5. Recommended values of RTUNE and CTUNE

to obtain transient deviation of ≤2% of Vout for a

1.5A step load with Vin=3.3V.

Vo 2.5V 1.8V 1.2V 0.6V

Co 2 x 47μF2 x 47μF 4 x 47μF

4 x 47μF

+330μF

Polymer

RTUNE 33 33 33 33

CTUNE 22nF 27nF 47nF 150nF

ΔV 46mV 32mV 24mV 12mV

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 17

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 45. The preferred airflow direction

for the module is shown in Figure 46.

flow

Power Module

ind Tunnel

PWBs

12.7_

(0.50)

76.2_

(3.0)

Probe Location

for measuring

airflow and

ambient

temperature

25.4_

(1.0)

Figure 45. Thermal Test Setup.

The thermal reference points, Tref used in the

specifications are shown in Figure 46. 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 46. Preferred airflow direction and location

of hot-spot of the module (Tref).

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 18

Shock and Vibration

The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be able

to operate in harsh environments. The ruggedized modules have been successfully tested to the following conditions:

Non operating random vibration:

Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis) and

up to 50Grms (Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total of 90

minutes.

Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I:

The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of

the shock impulse characteristics as follows:

All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes.

Units were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock

magnitude of 40G was utilized. The operational units were subjected to three shocks in each direction along three axes

for a total of eighteen shocks.

Operating vibration per Mil Std 810F, Method 514.5 Procedure I:

The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F, Method

514.5, and Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 6 and Table 7 for all axes.

Full compliance with performance specifications was required during the performance test. No damage was allowed to

the module and full compliance to performance specifications was required when the endurance environment was

removed. The module was tested per MIL-STD-810, Method 514.5, Procedure I, for functional (performance) and

endurance random vibration using the performance and endurance levels shown in Table 6 and Table 7 for all axes.

The performance test has been split, with one half accomplished before the endurance test and one half after the

endurance test (in each axis). The duration of the performance test was at least 16 minutes total per axis and at least

120 minutes total per axis for the endurance test. The endurance test period was 2 hours minimum per axis.

Table 6: Performance Vibration Qualification - All Axes

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10 1.14E-03 170 2.54E-03 690 1.03E-03

30 5.96E-03 230 3.70E-03 800 7.29E-03

40 9.53E-04 290 7.99E-04 890 1.00E-03

50 2.08E-03 340 1.12E-02 1070 2.67E-03

90 2.08E-03 370 1.12E-02 1240 1.08E-03

110 7.05E-04 430 8.84E-04 1550 2.54E-03

130 5.00E-03 490 1.54E-03 1780 2.88E-03

140 8.20E-04 560 5.62E-04 2000 5.62E-04

Table 7: Endurance Vibration Qualification - All Axes

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

Frequency

(Hz)

PSD Level

(G2/Hz)

10 0.00803 170 0.01795 690 0.00727

30 0.04216 230 0.02616 800 0.05155

40 0.00674 290 0.00565 890 0.00709

50 0.01468 340 0.07901 1070 0.01887

90 0.01468 370 0.07901 1240 0.00764

110 0.00498 430 0.00625 1550 0.01795

130 0.03536 490 0.01086 1780 0.02035

140 0.0058 560 0.00398 2000 0.00398

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 19

Example Application Circuit

Requirements:

Vin: 3.3V

Vout: 1.8V

Iout: 2.25A max., worst case load transient is from 1.5A to 2.25A

ΔVout: 1.5% of Vout (27mV) for worst case load transient

Vin, ripple 1.5% of Vin (50mV, p-p)

MODULE

VOUT

SENSE

GND

TRIM

RTUNE

CTUNE

RTrim

VIN

CO1

CI2 CI1

Vin+ Vout+

ON/OFF

CI1 22μF/6.3V ceramic capacitor

CI2 47μF/6.3V bulk electrolytic

CO1 2 x 47μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)

CTune 27nF ceramic capacitor (can be 1206, 0805 or 0603 size)

RTune 33 ohms SMT resistor (can be 1206, 0805 or 0603 size)

RTrim 1kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 20

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.)

PIN FUNCTION

1 ON/OFF

2 VIN

3 GND

4 VOUT

5 SENSE

6 TRIM

7 GND

8 NC

9 SEQ

10 NC

PIN 7 PIN 8

PIN 10

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 21

Recommended Pad Layout

Dimensions are in millimeters and (inches).

Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]

x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)

PIN FUNCTION

1 ON/OFF

2 VIN

3 GND

4 VOUT

5 SENSE

6 TRIM

7 GND

8 NC

9 SEQ

10 NC

PIN 8 PIN 7

PIN 10

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 22

Packaging Details

The Pico TLynxTM 3A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 400

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: 24.00 mm (0.945”)

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 23

Surface Mount Information

Pick and Place

The Pico TLynxTM 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

temperatures of up to 300oC. 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. If assembly on the

bottom side is planned, please contact Lineage Power

for special manufacturing process instructions.

Only ruggedized (-D version) modules with additional

epoxy will work with a customer’s first side assembly.

For other versions, first side assembly should be

avoided

Lead Free Soldering

The Pico TLynxTM 3A modules are lead-free (Pb-free)

and RoHS compliant and fully compatible in a Pb-free

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. 47. Soldering outside of the

recommended profile requires testing to verify results

and performance. For questions regarding Land grid

array(LGA) soldering, solder volume; please contact

Lineage Power for special manufacturing process

instructions

MSL Rating

The Pico TLynxTM 3A 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.

Per J-STD-020 Rev. C

100

150

200

250

300

Reflow Time (Seconds)

Reflow Temp (°C)

Heating Zone

1°C/Second

Peak Temp 260°C

* Min. Time Above 235°C

15 Seconds

*Time Above 217°C

60 Seconds

Cooling

Zone

Figure 47. 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).

Data Sheet

April 7, 2011

Pico TLynxTM 3A: Non-isolated DC-DC Power Modules

2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 3A output current

LINEAGE POWER 24

Document No: DS06-131 ver. 1.14

PDF name: APTH003A0X_ds.pdf

Ordering Information

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

Table 8. Device Codes

Device Code Input

Voltage Range

Output

Voltage

Output

Current

On/Off

Logic Sequencing Comcodes

APXH003A0X-SRZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 3A Negative No CC109113313

APXH003A0X4-SRZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 3A Positive No CC109113321

APXH003A0X-SRDZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 3A Negative No CC109158795

APTH003A0X-SRZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 3A Negative Yes CC109113338

APTH003A0X4-SRZ 2.4 – 5.5Vdc 0.6 – 3.63Vdc 3A Positive Yes CC109113346

APTH003A0X-SR 2.4 – 5.5Vdc 0.6 – 3.63Vdc 3A Negative Yes CC109147484

Table 9. Coding Scheme

TLynx

family

Sequencing

feature.

Input

voltage

range

Output

current

Output

voltage

On/Off

logic

Options ROHS

Compliance

AP T H 003A0 X 4 -SR -D Z

T = with Seq.

X = w/o Seq.

H = 2.4 –

5.5V

3.0A X =

programmable

output

4 = positive

No entry =

negative

S = Surface

Mount

R =

Tape&Reel

D = 105C

operating

ambient, 40G

operating

shock as per

MIL Std 810F

Z = ROHS6

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: techsupport1@lineagepower.com

Asia-Pacific Headquarters

Tel: +86.021.54279977*808

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

pplication. 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.

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