Evaluation Board User Guide
Contents
1. 2 80 Vout V 2 79 2 78 2 77 0 01 0 1 1 10 100 1000 ILoap mA 08933 008 Figure 11 Output Voltage Vour vs Load Current lour at Vin 3 2 V Vout 2 8 V Ta 25 C DROPOUT VOLTAGE MEASUREMENTS Dropout voltage can be measured using the configurations shown in Figure 7 and Figure 8 Dropout voltage is defined as the input to output voltage differential when the input voltage is set to the nominal output voltage This applies only to output voltages above 2 2 V Dropout voltage increases with larger loads For more accurate measurements a second voltmeter can be used to monitor the input voltage across the input capacitor The input supply voltage may need to be adjusted to account for IR drops especially if large load currents are used Figure 12 shows the typical curve of dropout voltage measurements with different load currents Figure 12 Dropout Voltage vs Load Currents I oap Ce Vour 2 8 V Ta 25 C 120 100 80 60 Vpropout mV 40 20 1 10 08933 009 ILoap mA Rev A Page 6 of 12 MEASURING GROUND CURRENT VOLTAGE SOURCE AMMETER 1 99711 GND rane GND VAL OC IALC G DEVICES D ADP151 _ EVALZ ry VIN voul ee e 0 o T sca C2Cle C3C4 GND GND ss 8 se EN 08933 0102. Figure 13 Ground Current Measurement Setup TSOT A N A i O G e AMMETER VOLTAGE SOURCE DEVICES 08933 011 Figure 14 Ground Current Measurement Setup WLCSP Rev A Page 7 of 12 VOLTAGE SOURCE AMMETER 0 00112 LOAD 08933 016 Figure 15 Ground Current Measurement Setup LFCSP Figure 13 and Figure 14 show how the evaluation board can be connected to a voltage source and an ammeter for ground current measurements A resistor can be used as the load for the regulator Ensure that the resistor has a power rating that is adequate to handle the power expected to be dissipated across it An electronic load can be used as an alternative Ensure that the voltage source can supply enough current for the expected load levels Use the following steps to connect to a voltage source and ammeter 1 Connect the positive terminal of the voltage source to the VIN pad on the evaluation board 2 Connect the positive terminal of the ammeter to one of the GND pads of the evaluation board 3 Connect the negative terminal of the ammeter to the negative terminal of the voltage source 4 Connect a load between the VOUT pad of the evaluation board and the negative terminal of the voltage source When these connection steps are completed the voltage source can be turned on If J1 is inserted connecting EN to VIN for automatic startup the regulator powers up GROUND CURRENT CONSUMPTION G
3. ADPTS1 EVALZ VIN 08933 006 Figure 8 Output Voltage Measurement Setup WLCSP Rev A Page 4 of 12 VOLTAGE SOURCE VOLTMETER 1 99711 08933 015 Figure 9 Output Voltage Measurement Setup LFCSP Figure 7 and Figure 8 show how the evaluation board can be connected to a voltage source and a voltmeter for basic output voltage accuracy measurements A resistor can be used as the load for the regulator Ensure that the resistor has a power rating that is adequate to handle the power that is expected to be dissipated across it An electronic load can also be used as an alternative Ensure that the voltage source can supply enough current for the expected load levels Use the following steps to connect to a voltage source and voltmeter 1 Connect the negative terminal of the voltage source to one of the GND pads on the evaluation board 2 Connect the positive terminal of the voltage source to the VIN pad of the evaluation board 3 Connect a load between the VOUT pad and one of the GND pads 4 Connect the negative terminal of the voltmeter to one of the GND pads 5 Connect the positive terminal of the voltmeter to the VOUT pad When these steps are completed the voltage source can be turned on IfJ1 is inserted connecting EN to VIN for auto matic startup the regulator powers up If the load current is large the user must connect the voltmeter as close as possible to the
4. ordered Components common to all versions are C1 C2 and J1 Figure 4 and Figure 5 show the schematics of these evaluation board configurations Table 1 describes the components Vin Vout 1 VIN VOUT 5 Ci u1 c2 1pF g ADP151 g 1pF 2 GND J1 3 EN NC 4 Figure 4 Evaluation Board Schematic TSOT 08933 004 Figure 5 Evaluation Board Schematic WLCSP 08933 003 TOP VIEW Not to Scale l NC NO CONNECT DO NOT CONNECT TO THIS PIN Figure 6 Evaluation Board Schematic LFCSP 08933 014 Table 1 Evaluation Board Hardware Components Component Description U1 ADP 151 ultralow noise low dropout linear regulator C1 Input bypass capacitor 1 uF 0402 size C2 Output capacitor 1 uF 0402 size J1 Jumper connects EN to VIN for automatic startup The evaluation board with the WLCSP package is the ADP151CB xxx EVALZ The evaluation board with the TSOT package is the ADP151UJ xxx EVALZ The ADP151 evaluation board requires only one input bypass capacitor and one output capacitor for stable operation Rev A Page 3 of 12 MEASURING OUTPUT VOLTAGE VOLTAGE SOURCE VOLTMETER ANALOG xy m gt 1 99711 DEVICES ADP 151 EVALZ VIN VOUT a eU we e a B CAClemmG SCA _ 000000 e e J so EN Figure 7 Output Voltage Measurement Setup TSOT 08933 005 VOLTAGE SOURCE AN ALOG e VOLTMETER DEVICES o
5. output capacitor to reduce the effects of IR drops LINE REGULATION MEASUREMENTS For line regulation measurements the output of the regulator is monitored while its input is varied For good line regulation the output must change as little as possible with varying input levels To ensure that the device is not in dropout mode during this measurement Vin must be varied between Vour nominal 0 4 V or 2 2 V whichever is greater and Vin maximum For example for an ADP151 with a 2 8 V output V needs to be varied between 3 2 V and 5 5 V This measurement can be repeated under different load conditions Figure 10 shows the typical line regulation performance of an ADP151 with a 2 8 V output 2 83 10HA LOAD 1 2 82 100uA LOAD 1 imA LOAD 2 2 81 5 2 80 e gt 2 79 2 78 2 77 3 3 10 3 50 3 90 4 30 4 70 5 10 5 50 Vin V Figure 10 Output Voltage Vour vs Input Voltage Vin at Ta 25 C LOAD REGULATION MEASUREMENTS For load regulation measurements the output of the regulator is monitored while the load is varied For good load regulation the output must change as little as possible with varying load The input voltage must be held constant during this measure ment The load current can be varied from 0 mA to 200 mA Figure 11 shows the typical load regulation performance of an ADP151 with a 2 8 V output for an input voltage of 3 2 V Rev A Page 5 of 12 2 81
6. ANALOG DEVICES Evaluation Board User Guide UG 116 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 Setting Up the Evaluation Board for the ADP151 FEATURES Input voltage range 2 2 V to 5 5V Output current range 0 mA to 200 mA Output voltage accuracy 1 Operating temperature range 40 C to 125 C GENERAL DESCRIPTION The ADP151 evaluation board is used to demonstrate the functionality of the ADP151 series of linear regulators Simple device measurements such as line and load regulation dropout voltage and ground current can be demonstrated with only a single voltage supply a voltmeter a current meter and load resistors For more information about the ADP151 linear regulator see the ADP151 data sheet EVALUATION BOARDS GND a ee ANALOG DEVICES e ADP151 EVAL VIN UT a 00 GND le Figure 1 TSOT PCB Layout PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS GND GND ee ee 08933 001 Rev A Page 1 of 12 ANALOG o DEVICES o SERRATE nin VOUT Ji 1 6mm foe Figure 2 WLCSP PCB Layout ANALOG gt Sie te ee DEVICES e Figure 3 LFCSP PCB Layout 08933 002 08933 013 TABLE OF CONTENTS EGAN CS essere sce Sen esa ec ce carta ON 1 G n ral DesGIptiOm ssssiessessscessas
7. LUATION 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 fo
8. age 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
9. r the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed 2010 Analog Devices Inc All rights reserved Trademarks and ANALOG registered trademarks are the property of their respective owners UG08933 0 12 10 A DEVICES www analog com Rev A Page 12 of 12
10. round current measurements can determine how much current the internal circuits of the regulator consume while the circuits perform the regulation function To be efficient the regulator must consume as little current as possible Typically the regulator uses the maximum current when supplying its largest load level 200 mA Figure 16 shows the typical ground current consump tion for various load levels at Vour 2 8 V and Ta 25 C When the device is disabled EN GND ground current drops to less than 1 pA 1000 LOAD 10pA LOAD 100pA LOAD 1mA LOAD 200mA GROUND CURRENT pA 3 10 3 10 3 50 3 90 4 30 4 70 5 10 5 50 Vin V 08933 012 Figure 16 Ground Current vs Input Voltage Vour 2 8 V Ta 25 C Rev A Page 8 of 12 BILL OF MATERIALS Table 2 Reference Designator Description Manufacturer Part No C1 C2 Capacitor MLCC 1 uF 10 V 0402 X5R Murata or equivalent J1 Header single STR 2 pins Sullins Connector Solutions PECO2SAAN U1 IC LDO regulator Analog Devices Inc ADP151 Rev A Page 9 of 12 NOTES Rev A Page 10 of 12 NOTES Rev A Page 11 of 12 NOTES A ESD Caution ESD electrostatic discharge sensitive device Charged devices and circuit boards can discharge without detection Although this product features patented or proprietary protection Alas circuitry dam
11. siisnnssddteannsstssrvacedsssessnsdianssshderassaioes 1 Evaluiation Boards ic sscsccisiviesssssotessnesedeivsesedenetovavessseludesudevedaeteinsscuerd 1 Revision History cvnccdesiccictesicessteccseicigieecistpiedi tees ncaa 2 Revision History nyen e tata E ee 2 Evaluation Board Hardware ss sssssssssssssssssssssssssssreseressssssssssesene 3 Evaluation Board Configurations ssssssssssssssrsssssssssssssssresssss 3 REVISION HISTORY 12 10 Rev 0 to Rev A Added LFCSP Throughout cecssesesessessesseesesessees Universal Added Figure 3 Renumbered Sequentially cceceseseeseesseeees 1 Ade diFigures6 isna iaeiei aaa a EES i 3 Added Figure Jisivici yne n r E 5 Added Fig Ure 15 ts cssves scsdavesessvasvestscetssasessserssavessvosssanspesessuetepivessae s 8 4 10 Revision 0 Initial Version Measuring Output Voltage eeesseessesseesseesessessnessesseeseesseesens Line Regulation Measurement cccessesssessesseessessesseesesseesees Load Regulation Measurements ccsesssssesesseessesseesstesesseenes Dropout Voltage Measurements eessessesseseeseeseeseeseeneeneeees Measuring Ground Current cccessessessseseeseessessesstesessessseseeseess Ground Current Consumption seeesesseseeseeseeseeseeneeneees Bill of Materials Rev A Page 2 of 12 EVALUATION BOARD HARDWARE EVALUATION BOARD CONFIGURATIONS The ADP151 evaluation board is supplied with different components depending on the version
12. 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 EVA
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