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User’s Guide

LM63635DNEVM EVM User’s Guide

ABSTRACT

The Texas Instruments LM63635DNEVM evaluation module (EVM) helps designers evaluate the operation and 
performance of the LM636x5CAQDRRQ1 buck regulator. The LM636x5CAQDRRQ1 is a family of easy-to-use 
synchronous step-down DC/DC converters capable of driving up to 3.5 A of load current from an input voltage 
of 3.5 V to 36 V. See the 

LM636x5-Q1 3.5-V to 36-V, 1.5-A, and 2.5-A Automotive Step-down Voltage Converter 

Data Sheet

 for additional features, detailed description, and available options. Please note that this EVM 

is designed for the LM636x5CAQDRRQ1. This device has a different pin-out than the other devices in the 
LM636x5-Q1 product family.

Table 1-1. Device and Package Configurations

EVM

DEVICE

OUTPUT 
VOLTAGE

OUTPUT 

CURRENT

SWITCHING 

FREQUENCY

PACKAGE

LM63635DNEVM LM63635CAQDRRQ1

5 V

3.25 A

2.1 MHz

DRR0012 

(WSON)

Figure 1-1. LM63635DNEVM Board Image

www.ti.com

SNVU767 – MARCH 2022

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LM63635DNEVM EVM User’s Guide

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Copyright © 2022 Texas Instruments Incorporated

Summary of Contents for LM63635DNEVM

Page 1: ...2 5 A Automotive Step down Voltage Converter Data Sheet for additional features detailed description and available options Please note that this EVM is designed for the LM636x5CAQDRRQ1 This device has a different pin out than the other devices in the LM636x5 Q1 product family Table 1 1 Device and Package Configurations EVM DEVICE OUTPUT VOLTAGE OUTPUT CURRENT SWITCHING FREQUENCY PACKAGE LM63635DNE...

Page 2: ...lation AUTO Mode VOUT 5 V fSW 2100 kHz 6 Figure 4 1 LM63635DNEVM Schematic 7 Figure 5 1 Top View of EVM 8 Figure 5 2 Bottom View of EVM 8 Figure 5 3 EVM Top Copper Layer 9 Figure 5 4 EVM Mid Layer One 9 Figure 5 5 EVM Mid Layer Two 9 Figure 5 6 EVM Bottom Copper Layer 9 List of Tables Table 1 1 Device and Package Configurations 1 Table 6 1 BOM for LM63625DNEVM 10 Trademarks All trademarks are the ...

Page 3: ... details The following lists the functions of the connections VINEMI Input supply to EVM Connect to a suitable input supply GND System ground VOUT Output of EVM Connect to desired load VOS Output voltage sense connection do not use for power sense only VIS Input voltage sense connection do not use for power sense only GNDS Ground sense point for analog measurements do not use for power sense only ...

Page 4: ...ition by removing this jumper and supplying a clock signal to the SYNC MODE test point the device can by synchronized to an external clock EN This jumper turns the device on or off In addition by removing this jumper and supplying a signal to the EN test point the device can be controlled externally Mode Selec on Jumper EN Control Jumper Figure 1 3 Jumper Locations Setup www ti com 4 LM63635DNEVM ...

Page 5: ...he IC It is used as a flag output The reset function can be monitored at this test point SYNC MODE Connected to the SYNC MODE pin of the IC VCC Connected to the VCC output of the device Can be used for logic level pullups if needed OPEN PADS Connections for frequency response analyzer on bottom of board to take Bode plots See Figure 1 4 for details of connections B Signal Injection _ v µš š networ...

Page 6: ...he voltage on the RESET to less than the specified Abs max for this pin Some components in the EMI filter are not populated The user is free to experiment with different EMI filter components as desired Loop gain measurements Bode plots can be made using the setup shown in Figure 1 4 The EVM has been designed for maximum flexibility regarding component selection This allows the user to place prefe...

Page 7: ...4 Schematic Figure 4 1 LM63635DNEVM Schematic www ti com Schematic SNVU767 MARCH 2022 Submit Document Feedback LM63635DNEVM EVM User s Guide 7 Copyright 2022 Texas Instruments Incorporated ...

Page 8: ...ce Contact may cause burns Do not touch Figure 5 1 Top View of EVM Figure 5 2 Bottom View of EVM Board Layout www ti com 8 LM63635DNEVM EVM User s Guide SNVU767 MARCH 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 9: ...gure 5 4 EVM Mid Layer One Figure 5 5 EVM Mid Layer Two Figure 5 6 EVM Bottom Copper Layer www ti com Board Layout SNVU767 MARCH 2022 Submit Document Feedback LM63635DNEVM EVM User s Guide 9 Copyright 2022 Texas Instruments Incorporated ...

Page 10: ... 3 L1 L1 Inductor Shielded Composite 2 2 uH 6 1 A 0 0201 ohm AEC Q200 Grade 1 SMD Coilcraft XEL4030 222MEB 1 L2 Lf2 Inductor Shielded Metal Composite 4 7 uH 2 9 A 0 076 ohm SMD Wurth Elektronik 74438356047 1 L3 Lf1 Ferrite Bead 600 Ω at 100 MHz 3 A 1210 Taiyo Yuden FBMH3225HM601NT 1 L4 L4 Coupled inductor 0 015 Ω AEC Q200 Grade 1 SMD TDK ACM70V 701 2PL TL00 0 R1 RINJ RES 49 9 1 0 1 W AEC Q200 Grad...

Page 11: ...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 12: ... 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 13: ...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 14: ... 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 15: ...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 16: ...o 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 and you will fully indemn...

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