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dc2469af

DEMO MANUAL DC2469A

LT 0118 • PRINTED IN USA

 

ANALOG DEVICES, INC. 2018

ESD Caution 

ESD (electrostatic discharge) sensitive device.

 Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection 

circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.

Legal Terms and Conditions 

By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and 

conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation 

Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) 

and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to 

Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and 

agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted 

is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third 

Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is 

NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all 

be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of 

use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile 

or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited 

to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS 

Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF 

LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY 

DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE 

IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS 

LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING 

BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE 

HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States 

federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts 

(excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits 

to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.

Содержание LINEAR DC2469A

Страница 1: ...ks are the property of their respective owners PERFORMANCE SUMMARY Many popular features such as soft start cycle by cycle current limit power good for each of the four channels are packed in the 40 l...

Страница 2: ...regulators channels 1 2 as well Check if the EN UVLO is set in correct position Check if too much load is applied to VOUT4 SEPIC does not have overcurrent or short circuit protection capability NOTE...

Страница 3: ...d 0 at R10 the circuit is set in pulse skipping mode The circuit runs in full frequency with lower load cur rent in this mode To synchronize to an external clock apply the external clock to the SYNC t...

Страница 4: ...4 dc2469af DEMO MANUAL DC2469A Figure 1 Proper Measurement Equipment Setup QUICK START PROCEDURE...

Страница 5: ...UAL DC2469A Figure 2 Proper Scope Probe Placement for Measuring Input or Output Ripple Figure 3 Thermal Image Top View IOUT1 1A IOUT2 1A IOUT3 1A TA 25 C FSW 2MHz A VIN 6V B VIN 24V QUICK START PROCED...

Страница 6: ...urst Mode OPERATION PULSE SKIPPING MODE LOAD CURRENT A 0 0 3 0 5 0 8 1 1 3 1 5 1 8 2 2 3 2 5 30 40 50 60 70 80 90 EFFICIENCY Efficiency VOUT 8V DC2469A F04b Figure 4 Load Transient from 50mA to 450mA...

Страница 7: ...C0G 2 2pF 50V 0 25pF 0603 Murata GRM1885C1H2R2CA01D 19 1 C30 Cap C0G 4 7pF 50V 0 25pF 0603 Murata GRM1885C1H4R7CA01D 20 1 C31 Cap C0G 22pF 50V 5 0603 Murata GRM1885C1H220JA01D 21 2 C34 C38 Cap X7R 10...

Страница 8: ...ice LT8603EUJ Additional Demo Board Circuit Components 1 0 C4 C5 Cap 0402 2 0 C14 C16 C28 C36 C37 C41 C43 Cap 0603 3 0 C33 Cap 1206 4 0 Q2 NPN MMBT3904 SOT 23 5 0 R10 R20 R25 R26 R29 R30 R31 R35 R38 R...

Страница 9: ...1 R38 OPT C27 4 7 F 50V 1206 E4 GND L1 0 0805 C37 OPT C15 47nF X7R R35 OPT 0 R3 24 9k 1 R13 200k 1 E17 SYNC C13 2 2 F 0402 10V C23 2 2 F 0402 10V C43 OPT C12 47 F 10V X5R 1206 R30 OPT JP5 VOUT2 VOUT1...

Страница 10: ...disclose or transfer any portion of the Evaluation Board to any other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to prom...

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