RedyKit User Guide UG-028 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com RedyKit™ for the ADP2503 Buck-Boost Converter FEATURES TYPICAL APPLICATION CIRCUIT All-voltage option for evaluation 1.0µH Surface-mount ADP2503 parts that can be easily soldered Additional parts for prototyping SW1 SW2 ADP2503CPZ-REDYKIT CONTENTS VIN ADP2503 VOUT 2.3V TO 5.5V 2.8V TO 5V PVIN VOUT 1 each ADP2503-3.3-EVALZ evaluation board V 3.3 V OUT 1 each ADP2503-5.0-EVALZ evaluation board VOUT 5.0 V 10µF VIN FB 22µF 3 each ADP2503 voltage options in a labeled bag SYNC EN AGND PGND OFFON 08184-002 Figure 2. 08184-001 Figure 1. ADP2503CPZ-REDYKIT GENERAL DESCRIPTION The ADP2503CPZ-REDYKIT allows simplified prototyping The ADP2503CPZ-REDYKIT is available with fixed 3.3 V and and evaluation and is available for every standard fixed output 5.0 V evaluation boards. The kit also contains additional parts for voltage option in the ADP2503 product family. The kit allows the prototyping. The kit enclosure, which contains individually user to evaluate the voltage options with one easy to order kit. packaged parts and the two evaluation boards, is packaged in an ESD foam pad inside a treated cardboard box that measures All surface-mount ADP2503 parts come sorted and stored in 8.7" (L) × 7.9" (W) × 1.75"(H), that is, 22 cm (L) × 20 cm (W) × the kit with the Analog Devices, Inc., part number and fixed 4.5 cm (H). output voltage clearly printed on each zip-top bag (see Figure 5). The ADP2503 evaluation board data sheet, EVAL-ADP2503/ The kit can be used in the engineering lab to evaluate required ADP2504, can be found at www.analog.com. voltage options. If other voltage options must be evaluated, a different part from the kit can be easily soldered onto one of the RedyKit is a trademark of Analog Devices, Inc. evaluation boards supplied with the kit. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 4

UG-028 RedyKit User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Revision History ................................................................................2 ADP2503CPZ-REDYKIT Contents ............................................... 1 Evaluation Board Schematic and Layout .......................................3 Typical Application Circuit ............................................................. 1 RedyKit Bill of Materials ..................................................................4 General Description ......................................................................... 1 REVISION HISTORY 6/10—Rev. 0 to Rev. A Added RedyKit Trademark ............................................... Universal Changes to Figure 2 .......................................................................... 1 7/09—Revision 0: Initial Version Rev. A | Page 2 of 4

RedyKit User Guide UG-028 EVALUATION BOARD SCHEMATIC AND LAYOUT TP1 J4 1 VOUT 2 PVIN PGND J3 C61.033µVF VOJUPT1 C61.023µVF VOUT 1 U1 10 FB R1M1Ω 1 J5 1 SW2 2 ADP2503 9 AGND 2 SYNC C61.013µVF 1.5µLH1 PGSWND1 34 (NToOt Pto V sIEcaWle) 87 VSIYNNC 3 PVIN EN J2 5 6 PVIN VOUT R2 J6 J1 PGND TO AGND AT PADDLE 0RΩ3 1MΩ 1 PGND 2 C4 EN 0.1µF 3 PVIN PLACE CLOSE TO VIN TP12 08184-004 Figure 3. Evaluation Board Schematic 08184-003 Figure 4. Evaluation Board Layout Rev. A | Page 3 of 4

UG-028 RedyKit User Guide REDYKIT BILL OF MATERIALS Table 1. Qty Model Voltage Maximum Current Description 1 ADP2503-3.3-EVALZ V 3.3 V N/A1 Evaluation board OUT 1 ADP2503-5.0-EVALZ V 5.0 V N/A1 Evaluation board OUT 3 ADP2503ACPZ-2.8-R7 2.8 V 0.6 A 10-lead lead frame chip scale package (LFCSP_WD) 3 ADP2503ACPZ-3.3-R7 3.3 V 0.6 A 10-lead lead frame chip scale package (LFCSP_WD) 3 ADP2503ACPZ-3.5-R7 3.5 V 0.6 A 10-lead lead frame chip scale package (LFCSP_WD) 3 ADP2503ACPZ-4.2-R7 4.2 V 0.6 A 10-lead lead frame chip scale package (LFCSP_WD) 3 ADP2503ACPZ-4.5-R7 4.5 V 0.6 A 10-lead lead frame chip scale package (LFCSP_WD) 3 ADP2503ACPZ-5.0-R7 5.0 V 0.6 A 10-lead lead frame chip scale package (LFCSP_WD) 1 N/A is not applicable. 08184-005 Figure 5. ADP2503CPZ-REDYKIT Contents 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. ©2009–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG08184-0-6/10(A) Rev. A | Page 4 of 4