GE Industrial Solutions Austin Lynx II SMT User Manual

Data Sheet September 10, 2013

Austin Lynx

2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc Output;10A Output Current

TM

II SMT Non-isolated Power Modules:

RoHS Compliant

EZ-SEQUENCE

TM

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

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 10A output current

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

 Small size and low profile:

33.0 mm x 13.5 mm x 8.28 mm

(1.30 in x 0.53 in x 0.326 in)

 Low output ripple and noise

 High Reliability:

Calculated MTBF = 15.7M hours at 25

 Constant switching frequency (300 kHz)

 Output voltage programmable from 0.75 Vdc to

3.63Vdc via external resistor

 Line Regulation: 0.3% (typical)

 Load Regulation: 0.4% (typical)

 Temperature Regulation: 0.4 % (typical)

 Remote On/Off

 Remote sense

 Output overcurrent protection (non-latching)

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

 UL* 60950-1Recognized, CSA

03 Certified, and VDE Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

TM

†

‡

0805:2001-12 (EN60950-1)

C22.2 No. 60950-1-

= 5.0V)

IN

o

C Full-load

Description

Austin LynxTM II SMT (surface mount technology) power modules are non-isolated DC-DC converters that can deliver up to 10A of output current with full load efficiency of 95% at 3.3V output. These modules provide a precisely regulated output voltage programmable via an external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage (V SEQUENCE multiple voltages on a board.

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

†

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

‡

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

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

TM

that enable designers to implement various types of output voltage sequencing when powering

= 2.4 – 5.5Vdc). The Austin LynxTM II series has a sequencing feature, EZ-

IN

Document No: DS03-105 ver. 1.04

PDF name: lynx_II_smt_ds.pdf

Data Sheet September 10, 2013

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SMT Non-isolated Power Modules:

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.

Parameter Device Symbol Min Max Unit

Input Voltage All V

Continuous

Sequencing voltage All Vseq -0.3 V

Operating Ambient Temperature All T

(see Thermal Considerations section)

Storage Temperature All T

IN

A

stg

-0.3 5.8 Vdc

Vdc

IN,max

-40 85 °C

-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 Vo ≤ V

Maximum Input Current All I

(VIN=2.4V to 5.5V, IO=I

Input No Load Current Vo = 0.75Vdc I

)

O, max

- 0.5 VIN 2.4

IN

IN,max

IN,No load

10 Adc

25 mA

⎯

5.5 Vdc

(VIN = 5.0Vdc, IO = 0, module enabled) Vo = 3.3Vdc I

Input Stand-by Current All I

(VIN = 5.0Vdc, module disabled)

Inrush Transient All I2t 0.1 A2s

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

Input Ripple Rejection (120Hz) All 30 dB

IN, max, IO

= I

; See Test Configurations)

Omax

IN, min

to

All 100 mAp-p

30 mA

IN,No load

1.5 mA

IN,stand-by

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 15A, time-delay fuse (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.

LINEAGE POWER 2

Data Sheet September 10, 2013

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SMT Non-isolated Power Modules:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point All V

(VIN=

IN, min

, IO=I

, TA=25°C)

O, max

Output Voltage All V

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

Adjustment Range All V

Selected by an external resistor

O, set

O

Output Regulation

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

to I

ref=TA, min

) All

IN, max

) All

O, max

to T

) All ⎯ 0.4

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

= 0.75Vdc η 81.5 %

O,set

= 1.2Vdc η 87.0 %

O, set

= 1.5Vdc η 89.0 %

O,set

= 1.8Vdc η 90.0 %

O,set

= 2.5Vdc η 93.0 %

O,set

= 3.3Vdc η 94.0 %

O,set

Switching Frequency All f

O, max

o

O, lim

O, s/c

sw

Dynamic Load Response

(dIo/dt=2.5A/μs; VIN = V

IN, nom

; TA=25°C)

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

All V

pk

Peak Deviation

Settling Time (Vo<10% peak deviation)

(dIo/dt=2.5A/μs; VIN = V

IN, nom

; TA=25°C)

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

All t

All V

s

pk

Peak Deviation

Settling Time (Vo<10% peak deviation)

All t

s

-2.0 V

-3%

+2.0 % V

O, set

⎯

+3% % V

0.7525 3.63 Vdc

⎯

0.3

0.4

⎯

8 15 mV

25 50 mV

% V

⎯ ⎯

1000 μF

5000 μF

0 10 Adc

⎯

200

3.0

⎯

300

250

50

250

50

⎯

⎯ μs

⎯

⎯ μs

pk-pk

% I

Adc

kHz

mV

O, set

rms

o

LINEAGE POWER 3

Data Sheet September 10, 2013

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SMT Non-isolated Power Modules:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Dynamic Load Response

(dIo/dt=2.5A/μs; V VIN = V

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

Peak Deviation

Settling Time (Vo<10% peak deviation)

(dIo/dt=2.5A/μs; VIN = V

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

Peak Deviation

Settling Time (Vo<10% peak deviation)

IN, nom

; TA=25°C)

All V

All t

All V

All t

pk

s

pk

s

⎯

60

100

60

100

⎯

⎯ μs

⎯

⎯ μs

General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO=I

Weight

, TA=25°C) 15,726,300 Hours

O, max

⎯

2.8 (0.1)

⎯

g (oz.)

mV

LINEAGE POWER 4

Data Sheet September 10, 2013

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SMT Non-isolated Power Modules:

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information.

Parameter Device Symbol Min Typ Max Unit

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 1.5 ― 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 ― 3.9 ― msec ON) and then input power is applied (delay from instant at which V

Case 2: Input power is applied for at least one second

=V

IN

until Vo=10% of Vo,set)

IN, min

All Tdelay ― 3.9 ― 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% of V

o,set to 90% of Vo, set)

All Trise

Sequencing Delay time

Delay from V

to application of voltage on SEQ pin All TsEQ-delay 10 msec

IN, min

Tracking Accuracy (Power-Up: 2V/ms) All

(Power-Down: 1V/ms) All

(V

IN, min

to V

IN, max

; I

to I

O, min

VSEQ < Vo)

O, max

SEQ –Vo

|V

SEQ –Vo

|V

Output voltage overshoot – Startup ―

IO= I

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

O, max

Remote Sense Range ― ― 0.5 V Overtemperature Protection

(See Thermal Consideration section)

Input Undervoltage Lockout

Turn-on Threshold All

Turn-off Threshold All

All T

ref

V

IN, max

Vdc

IN,max

― 4.2 8.5 msec

100 200 mV

200 400 mV

⎯

125

1

⎯

% V

°C

O, set

2.2 V

2.0 V

LINEAGE POWER 5

Data Sheet

)

September 10, 2013

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SMT Non-isolated Power Modules:

Characteristic Curves

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

90

87

84

81

78

75

EFFICIENCY, (η)

72

02.557.510

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

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

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

93

90

87

84

81

78

EFFICIENCY, (η)

75

72

0 2.557.510

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

OUTPUT CURRENT, I(A

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

94

91

88

85

82

79

76

EFFICIENCY, (η)

73

70

02.557.510

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

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

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

96

93

90

87

84

81

78

EFFICIENCY, (η)

75

72

02.557.510

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

10 0

97

94

91

88

85

82

79

EFFICIENCY, (η)

76

73

02.557.510

OUTPUT CURRENT, I

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

10 0

97

94

91

88

85

82

EFFICIENCY, (η)

79

76

0 2.557.510

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

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

VIN = 3.0V

VIN = 5.0V

VIN = 5.5V

(A

VIN = 4.5V

VIN = 5.0V

VIN = 5.5V

LINEAGE POWER 6

Data Sheet September 10, 2013

Austin Lynx

2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current

TM

II SMT Non-isolated Power Modules:

Characteristic Curves (continued)

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

10

9

8

7

(A)

IN

6

5

4

3

2

INPUT CURRENT, I

1

0

0.5 1.5 2.5 3.5 4.5 5.5

INPUT VOLTAGE, VIN (V)

Figure 7. Input voltage vs. Input Current (Vo =

2.5Vdc).

Io=10 A

Io=5A

Io=0A

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

TIME, t (10μs/div)

Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3Vdc).

(V) (20mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2μs/div) TIME, t (10μs/div)

Figure 8. Typical Output Ripple and Noise

(Vin = 5.0V dc, Vo = 0.75, Vdc, Io=10A).

(V) (20mV/div)

O

OUTPUT VOLTAGE

V

TIME, t (2μs/div) TIME, t (20μs/div)

Figure 9. Typical Output Ripple and Noise

(Vin = 5.0V dc, Vo = 3.3 Vdc, Io=10A).

(V) (200mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

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

(V) (50mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT, OUTPUT VOLTAGE

I

Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3 Vdc, Cext = 2x150 μF Polymer Capacitors).

LINEAGE POWER 7