Linear Technology DC2123B Demo Manual Download Page 10

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dc2123bfa

DEMO MANUAL DC2123B

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 0117 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 application 

engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Copyright © 2004, Linear Technology Corporation

Summary of Contents for DC2123B

Page 1: ...s an aluminum electrolytic capacitor in addition to ceramic capacitors A two stage L C input filter can easily be added for electro magnetic compatibility The L LT LTC LTM Linear Technology and the Li...

Page 2: ...not set too high 4 Once the proper output voltage is established adjust the input voltage and load within the operating ranges and observe the output voltage regulation ripple volt age efficiency and...

Page 3: ...123bfa DEMO MANUAL DC2123B QUICK START PROCEDURE Figure 1 Proper Measurement Equipment Setup for DC2123B Figure 2 Efficiency VIN 12V VIN 24V LOAD CURRENT A 0 1 2 3 4 5 80 85 90 95 100 EFFICIENCY dc212...

Page 4: ...START PROCEDURE Figure 3 Output Voltage Ripple at 5A Output Current VOUT 24V 25MHz Bandwidth Figure 4 Output Voltage Load Transient Response VOUT 24V IOUT 2 5A to 5A to 2 5A 25MHz Bandwidth VIN 14V VI...

Page 5: ...se resistors to be used for most applications 2 The LT3790 CTRL pin linear range is from 0V to 1 1V andhasaturn offthresholdof50mV typical compared to a 200mV to 1 1V linear range and 175mV typical tu...

Page 6: ...H SER2900 COILCRAFT SER2918H 103KL 13 2 M1 M2 MOSFET N CHANNEL 60V TDSON 8 INFINEON BSC100N06LS3 G 14 2 M3 M4 MOSFET N CHANNEL 40V TDSON 8 INFINEON BSC032N04LS 15 1 RC1 RES CHIP 7 5k 0 06W 5 0402 VIS...

Page 7: ...ONAL 12 0 R2 R23 R24 R26 R32 RES 0603 OPTIONAL 13 1 R7 RES CHIP 0 1206 YAGEO RC1206FR 070RL 14 0 R8 R9 R25 Res 0402 OPTIONAL 15 3 R12 R14 R22 RES CHIP 0 0402 VISHAY CRCW04020000Z0ED 16 2 R13 R21 RES C...

Page 8: ...27 ISN 26 PGND 17 PGND 20 FB 37 TG2 24 SW2 21 BG2 19 BG1 18 SW1 16 TG1 14 BST1 15 BST2 22 CCM 32 VIN 12 INTVCC 13 SGND 30 SGND 39 TEST1 29 E20 GND CSS1 33nF R12 0 Ohm C20 220 F 35V E12 CLKOUT RS1 0 0...

Page 9: ...2 Opt 0603 E22 INTVCC R29 Opt 0603 E24 GND C23 47 F 80V Opt 10mm Dia Surface Mount R30 Opt 0603 M10 SOT 23 Opt L3 4 7 H 7443551470 Wurth Electronik Opt R24 Opt 0603 C24 4 7 F 100V 1210 Opt D5 Opt SOD...

Page 10: ...TUTORY 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 INCIDE...

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