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dc2055afa

DEMO MANUAL DC2055A

Linear Technology  Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417  

(408) 432-1900 

 

FAX

: (408) 434-0507 

 

www.linear.com

 

LINEAR TECHNOLOGY CORPORATION 2014

LT 0316 REV A • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) provides the enclosed product(s) under the following 

AS IS

 conditions:

This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for 

ENGINEERING DEVELOPMENT 

OR EVALUATION PURPOSES ONLY

 and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete 

in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety 

measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union 

directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date 

of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU 

OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS 

FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR 

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims 

arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all 

appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or 

agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. 

LTC assumes no liability for applications assistance, 

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LTC currently services a variety of customers for products around the world, and therefore this transaction 

is not exclusive

.

Please read the DEMO BOARD manual prior to handling the product

. Persons handling this product must have electronics training and 

observe good laboratory practice standards. 

Common sense is encouraged

.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Copyright © 2004, Linear Technology Corporation

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Summary of Contents for DC2055A

Page 1: ...LTC LTM Linear Technology the Linear logo and Burst Mode are registered trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners PERFORMANCE SUMMARY...

Page 2: ...per output voltages VOUT1 should be 1 0V 2 5 Once the proper output voltages are established ad just the loads within the operating range and observe the output voltage regulation ripple voltage and o...

Page 3: ...O MANUAL DC2055A QUICK START PROCEDURE VOUT GND COUT Figure 1 Proper Measurement Equipment Setup Figure 2 Measuring Output Voltage Ripple Downloaded from Arrow com Downloaded from Arrow com Downloaded...

Page 4: ...URE Figure 3 Efficiency vs Load Current Figure 5 Current Sharing vs Load Current Figure 6 Output Voltage Ripple at VIN 12V VOUT 1 0V IOUT 120A fSW 400kHz Figure 7 Transient Performance at VIN 12V VOUT...

Page 5: ...CAP NPO 220pF 25V 10 0603 AVX 06033A221KAT2A 15 3 C13 C22 C56 CAP X5R 1 F 25V 10 0603 AVX 06033D105KAT2A 16 2 C14 C60 CAP X5R 4 7 F 16V 10 0805 TDK C2012X5R1E475K 17 4 C31 C32 C35 C36 CAP X5R 0 22 F 1...

Page 6: ...80 00 00 07 0 39 6 J1 J2 J3 J4 J14 J16 STUD TESTPIN PEM KFH 032 10 40 12 J1 J4 J14 J16 X2 NUT BRASS 10 32 ANY 10 32 41 6 J1 J4 J14 J16 RING LUG 10 KEYSTONE 8205 10 42 6 J1 J4 J14 J16 WASHER TIN PLATE...

Page 7: ...AT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT...

Page 8: ...REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFOR...

Page 9: ...H LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 2 Tuesday November 19 2013 3 3 HIGH EFFICIENCY HIGH CURRENT POLYPHASE SYNCHRONOUS HAORAN W B LTC3875EUJ DEMO CIRCUIT 2055A SIZE DATE IC NO REV SHEET...

Page 10: ...Y SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user...

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