Texas Instruments LMR36503RFEVM User Manual Download Page 10

STANDARD TERMS FOR EVALUATION MODULES

1.

Delivery:

TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or

documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.

1.1

EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software

1.2

EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.

2

Limited Warranty and Related Remedies/Disclaimers

:

2.1

These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.

2.2

TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques

are

used

to

the

extent

TI

deems

necessary.

TI

does

not

test

all

parameters

of

each

EVM.

User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.

2.3

TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.

WARNING

Evaluation Kits are intended solely for use by technically qualified,

professional electronics experts who are familiar with the dangers

and application risks associated with handling electrical mechanical

components, systems, and subsystems.

User shall operate the Evaluation Kit within TI’s recommended

guidelines and any applicable legal or environmental requirements

as well as reasonable and customary safeguards. Failure to set up

and/or operate the Evaluation Kit within TI’s recommended

guidelines may result in personal injury or death or property

damage. Proper set up entails following TI’s instructions for

electrical ratings of interface circuits such as input, output and

electrical loads.

NOTE:

EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.

Summary of Contents for LMR36503RFEVM

Page 1: ...synchronous step down DC DC converter capable of driving up to 0 3 A of load current from an input voltage of up to 65 V The LMR36503RFEVM features an output voltage of 3 3 V or 5 V and a switching frequency of 1 MHz See the LMR36503 3 V 65 V 0 3 A Ultra Small Synchronous Buck Converter with Ultra Low IQ data sheet for additional features detailed descriptions and available options Table 1 Device ...

Page 2: ... 7 5 Bill of Materials 9 List of Figures 1 LMR36503RFEVM Board 1 2 EVM Board Connections 3 3 Jumper Locations 4 4 LMR36503RFEVM Schematic 6 5 Top View of EVM 7 6 EVM Top Copper Layer 7 7 EVM Mid Layer One 7 8 EVM Mid Layer Two 8 9 EVM Bottom Copper Layer 8 List of Tables 1 Device and Package Configurations 1 2 Bill Of Materials 9 Trademarks All trademarks are the property of their respective owner...

Page 3: ...round connection VIN Input supply to the IC Can be connected to DMM to measure input voltage after EMI filter VOUT Output voltage test point of EVM Can be connected to a desired load EN This test point is connected to the EN pin By default there is a pullup resistor R2 RENT to VIN to enable the IC PGOOD This test point is connected to the PGOOD pin from the IC It is an open drain output of the PGO...

Page 4: ...this jumper to select the mode of operation in a MODE SYNC trim part Connecting a jumper between pin 1 and 2 cause the IC to operate in PFM Pulse Frequency Modulation mode for a higher efficiency at light load A jumper between pin 2 and pin 3 causes the IC to operate in FPWM mode Forced Pulse Width Modulation mode By default the jumper is connected between pin 1 and 2 In an RT trim part connecting...

Page 5: ...n the VIN_EMI and GND test points 2 Connect the load between the VOUT and GND test points 3 Set the supply voltage at an appropriate level between 5 5 V to 65 V Set the current limit of the supply to an appropriate level 4 Turn on the power supply With the default configuration the EVM powers up and provides VOUT 3 3 V 5 Monitor the output voltage The maximum load current must be 0 3 A with the LM...

Page 6: ...RFBT GND 22uF C5 COUT1 22uF C10 COUT2 DNP 10pF C13 CFF DNP 0 R4 RMODE VOUT 3 3V B A VIN VINEMI GND VOUT VOS AGND TP13 VCC TP12 SW TP14 GND 43 2k R7 RFBB1 59 0k R10 RFBB2 1 2 J4 JVOUT RT 1 PGOOD 2 EN UVLO 3 VIN 4 SW 5 BOOT 6 VCC 7 FB 8 GND 9 LMR36503RFRPET U1 39 2k R5 RT DNP 47uH L1 1 2 3 4 5 6 7 8 9 10 11 12 A B C D E F H J K L M N TOP BOT EC1 305 024 521 201 0 1uF C3 CB SH J1 SNT 100 BK G Assembl...

Page 7: ... 7 SNVU672 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LMR36503RFEVM User s Guide 4 Board Layout Figure 5 Top View of EVM Figure 6 EVM Top Copper Layer Figure 7 EVM Mid Layer One ...

Page 8: ...d Layout www ti com 8 SNVU672 February 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated LMR36503RFEVM User s Guide Figure 8 EVM Mid Layer Two Figure 9 EVM Bottom Copper Layer ...

Page 9: ... 102 07 G S 2 L1 MSS6132 473MLB Inductor Shielded Drum Core Ferrite 47 µH 0 93 A 0 38 Ω SMD Coilcraft MSS6132 473MLB 1 L2 FBMH3225HM601 NT Ferrite Bead 600 Ω at 100 MHz 3 A 1210 Taiyo Yuden FBMH3225HM601NT 1 LBL1 THT 14 423 10 Thermal Transfer Printable Labels 0 650 W x 0 200 H 10 000 per roll Brady THT 14 423 10 1 R1 RENB RES 100 k 1 0 063 W AEC Q200 Grade 0 0402 Vishay Dale CRCW0402100KFKED 0 R2...

Page 10: ...other than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 11: ... These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 12: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 13: ... any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 14: ...OR DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 15: ...se resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for...

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