Data Sheet June 3, 2009
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules: 4.5Vdc – 5.5Vdc input; 0.8 to 3.63Vdc; 30A Output Current 6.0Vdc – 14Vdc input; 0.8 to 3.63Vdc Output; 20/30A Output Current
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z versions) Compliant to ROHS EU Directive 2002/95/EC with lead solder exemption (non-Z versions) Delivers up to 30A of output current High efficiency: 92% @ 3.3V full load (12Vin) Available in two input voltage ranges ATH: 4.5 to 5.5Vdc ATS: 6 to 14Vdc • Output voltage programmable from ATH: 0.8 to 3.63Vdc ATS030: 0.8 to 2.75Vdc ATS020: 0.8 to 3.63Vdc Small size and low profile: 33.0 mm x 9.1 mm x 13.5 mm (1.30 in. x 0.36 in. x 0.53 in.) Monotonic start-up into pre-biased output Output voltage sequencing (EZ-SEQUENCE ) Remote On/Off Remote Sense Over current and Over temperature protection -P option: Paralleling with active current share -H option: Additional GND pins for improved thermal derating Wide operating temperature range (-40°C to 85°C) UL* 60950 Recognized, CSA C22.2 No. 60950-00 Certified, and VDE‡ 0805 (EN60950-1 3rd edition) Licensed ISO** 9001 and ISO 14001 certified manufacturing facilities
† TM
RoHS Compliant
Applications
Distributed power architectures Intermediate bus voltage applications Telecommunications equipment Servers and storage applications Networking equipment
Description
The Austin MegaLynx series SMT power modules are non-isolated DC-DC converters in an industry standard package that can deliver up to 30A of output current with a full load efficiency of 92% at 2.5Vdc output voltage (VIN = 12Vdc). The ATH series of modules operate off an input voltage from 4.5 to 5.5Vdc and provide an output voltage that is programmable from 0.8 to 3.63Vdc, while the ATS series of modules have an input voltage range from 6 to 14V and provide a programmable output voltage ranging from 0.8 to 3.63Vdc. Both series have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple modules on the board. Additional features include remote On/Off, adjustable output voltage, remote sense, over current, over temperature protection and active current sharing between modules.
* 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: DS06-109 ver. 1.09 PDF Name: austin_megalynx_smt.pdf
Data Sheet June 3, 2009
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
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 Input Voltage Continuous ATH ATS Sequencing pin voltage ATH ATS Operating Ambient Temperature (see Thermal Considerations section) Storage Temperature All Tstg -55 125 °C All VIN VIN VsEQ VsEQ TA -0.3 -0.3 -0.3 -0.3 -40 6 15 6 15 85 Vdc Vdc Vdc Vdc °C Device Symbol Min Max Unit
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Operating Input Voltage Device ATH ATS Maximum Input Current (VIN= VIN,min , VO= VO,set, IO=IO, max) ATH ATS020 ATS030 Inrush Transient Input Reflected Ripple Current, peak-topeak (5Hz to 20MHz, 1μH source impedance; VIN=6.0V to 14.0V, IO= IOmax ; See Figure 1) Input Ripple Rejection (120Hz) All All All Symbol VIN VIN IIN,max IIN,max IIN,max It 100 50
2
Min 4.5 6.0
Typ 5.0 12
Max 5.5 14 27 13.3 15.8 1
Unit Vdc Vdc Adc Adc Adc As mAp-p dB
2
LINEAGE POWER
2
Data Sheet June 3, 2009
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
Electrical Specifications (continued)
Parameter Output Voltage Set-point (VIN=VIN,nom, IO=IO, nom, Tref=25°C) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range Selected by an external resistor ATS030 ATS020 ATH030* * VO ≥ 3.3V only possible for VIN ≥ 4.75V Output Regulation Line (VIN=VIN, min to VIN, max) Load (IO=IO, min to IO, max) Temperature (Tref=TA, min to TA, max) Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max COUT = 0.1μF // 10 μF ceramic capacitors) Peak-to-Peak (5Hz to 20MHz bandwidth) Peak-to-Peak (5Hz to 20MHz bandwidth) Peak-to-Peak (5Hz to 20MHz bandwidth) External Capacitance ESR ≥ 1 mΩ ESR ≥ 10 mΩ Output Current (VIN = 4.5 to 5.5Vdc) (VIN = 6 to 14Vdc) (VIN = 6 to 14Vdc) Output Current Limit Inception (Hiccup Mode) Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode ) Efficiency ATH Series: VIN=5Vdc, TA=25°C IO=IO, max , VO= VO,set VO,set = 0.8dc VO,set = 1.2Vdc VO,set = 1.5Vdc VO,set = 1.8Vdc VO,set = 2.5Vdc VO,set = 3.3Vdc ATS Series: VIN=12Vdc, TA=25°C IO=IO, max , VO= VO,set VO,set = 0.8dc VO,set = 1.2Vdc VO,set = 1.8Vdc VO,set = 2.5Vdc VO,set = 3.3Vdc Switching Frequency, Fixed All η η η η η η η η η η η fsw ⎯ 82.2 85.8 89.5 89.2 92.0 92.2 77.5 83.5 86.5 91.3 92.1 300 ⎯ % % % % % % % % % % % kHz ATH Series ATS030 Series ATS020 Series All All Io Io Io IO, lim IO, s/c 0 0 0 105 ⎯ 140 3.5 30 30 20 160 ⎯ Adc Adc Adc % Iomax Adc All All CO, max CO, max 0 0 ⎯ ⎯ 2,000 10,000 μF μF Vo ≤ 2.5V 2.5V < Vo ≤ 3.63V Vo > 3.63V ⎯ ⎯ ⎯ 50 75 100 mVpk-pk mVpk-pk mVpk-pk All All All ⎯ ⎯ ⎯ ⎯ ⎯ 0.5 20 40 1 mV mV % VO, set 0.8 0.8 0.8 2.75 3.63 3.63 Vdc Vdc Vdc All VO, set –5.0 ⎯ +3.0 % VO, set Device All Symbol VO, set Min -1.5 Typ ⎯ Max +1.5 Unit % VO, set
LINEAGE POWER
3
Data Sheet June 3, 2009
Austin MegaLynxTM SMT: Non-Isolated DC-DC Power Modules: 4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
Electrical Specifications (continued)
Parameter Dynamic Load Response (dIO/dt=5A/μs; VIN=12V, Vo=3.3V ; TA=25°C) Load Change from Io= 50% to 100% of IO,max; No external output capacitors Peak Deviation Settling Time (VO
