Analog Devices UG-189 Скачать руководство пользователя страница 12

UG-189 

Evaluation Board User Guide

 

Rev. 0 | Page 12 of 12 

NOTES 

 

 

 

 

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.

 

©2010 Analog Devices, Inc. All rights reserved. Trademarks and  
 registered trademarks are the property of their respective owners. 
  

UG09315-0-8/10(0)  

Содержание UG-189

Страница 1: ...DESCRIPTION The ADP2302 ADP2303 are 2 A 3 A 20 V nonsynchronous step down dc to dc regulators with an integrated power MOSFET in a SOIC package with an exposed paddle The ADP2302 ADP2303 evaluation bo...

Страница 2: ...per J8 PGOOD 3 Input Power Source 3 Output Load 3 Input and Output Voltmeter 3 Turning On the Evaluation Board 3 Measuring Evaluation Board Performance 3 Typical Performance Characteristics 5 Demonstr...

Страница 3: ...r power source If the voltmeters are not connected directly to the evaluation board the measured voltages are incorrect due to the voltage drop across the leads and or connections between the evaluati...

Страница 4: ...ound clip For high frequency measurements this ground clip picks up high frequency noise and injects it into the measured output ripple Figure 2 shows an easy way to measure the output ripple properly...

Страница 5: ...0 15 0 15 0 10 0 10 0 05 0 05 0 LOAD REGULATION IOUT A 0 0 5 1 0 1 5 2 0 09315 005 Figure 5 ADP2302 Load Regulation VOUT 3 3 V VIN 12 V IOUT A 40 50 60 70 80 90 100 0 0 5 1 0 2 0 3 0 1 5 2 5 EFFICIEN...

Страница 6: ...00 s A CH2 7 5V 2 4 1 B W T 30 09315 011 Figure 11 Power Saving Mode CH1 2V CH4 2A CH2 10V CH3 10V M1ms A CH3 3 6V 2 4 3 1 B W B W T 20 2 09315 012 Figure 12 Soft Start with Full Load CH1 200mV CH4 2A...

Страница 7: ...NCY Hz 1 2 1M MAGNITUDE B A dB PHASE B A Degrees 09315 015 Figure 15 ADP2302 Bode Plot VOUT 3 3 V VIN 12 V L 6 8 H COUT 2 22 F 80 64 48 32 16 0 16 32 48 64 80 180 144 108 72 36 0 36 72 108 144 180 1k...

Страница 8: ...V C1206 Murata 1 C4 GRM31CR60J226KE19 Capacitor 22 F 6 3 V C1206 Murata 1 C5 GRM31CR61E106KA12 Capacitor 10 F 25 V C1206 Murata 1 D1 SSB43L Diode 30 V 4 A SMB_SD Vishay Dale 1 L1 VLF10040 6R8N5R4 Ind...

Страница 9: ...ER60J476ME20 Capacitor 47 F 6 3 V C1210 Murata 1 C5 GRM31CR61E106KA12 Capacitor 10 F 25 V C1206 Murata 1 D1 SSB43L Diode 30 V 4 A SMB_SD Vishay Dale 1 L1 VLF10040 4R7N5R4 Inductor L 4 7 H IRAT 5 4 A D...

Страница 10: ...RATION BOARD LAYOUT 09315 019 Figure 19 Demonstration Board Layer1 Component Side 09315 020 Figure 20 Demonstration Board Layer 2 Ground Plane 09315 021 Figure 21 Demonstration Board Layer3 Power Plan...

Страница 11: ...Evaluation Board User Guide UG 189 Rev 0 Page 11 of 12 NOTES...

Страница 12: ...r 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 Custo...

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