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The LM61460-Q1 evaluation module (EVM) is designed to help customers evaluate the performance of
the LM61460-Q1 synchronous step-down voltage converter. This EVM implements the LM61460-Q1 in a
14-pin wettable flanks Hotrod™ package, as shown in
voltage and up to 6-A load current with exceptional efficiency and output accuracy in a very small solution
size. The EVM provides multiple power connectors and test points. It also provides a good layout
example, which is optimized for EMI and thermal performance.
CONVERTER
U1
Figure 1. LM61460EVM Front
SNVU621C – May 2019 – Revised December 2019
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Table 1. Device and Package Configurations
IC
LM61460-Q1
Copyright © 2019, Texas Instruments Incorporated
SNVU621C – May 2019 – Revised December 2019
LM61460-Q1 EVM User's Guide
Table
1. It is capable of delivering 5-V output
PACKAGE
14-pin wettable flanks Hotrod package 4.0 mm × 3.5 mm × 1.0 mm
Figure 2. LM61460EVM Angle
User's Guide
LM61460-Q1 EVM User's Guide
1

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Summary of Contents for Texas Instruments LM61460-Q1 EVM

  • Page 1 14-pin wettable flanks Hotrod package 4.0 mm × 3.5 mm × 1.0 mm Figure 1. LM61460EVM Front Figure 2. LM61460EVM Angle SNVU621C – May 2019 – Revised December 2019 LM61460-Q1 EVM User's Guide Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 2: Table Of Contents

    LM61460EVM Board Test Results ......................Bill of Materials Trademarks Hotrod is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. Introduction LM61460 Synchronous Step-Down Voltage Converter The LM61460-Q1 device is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 6 A of load current from a supply voltage ranging from 3 V to 36 V.
  • Page 3: Quick Start

    Figure 4. LM61460-Q1 Schematic LM61460-Q1 Evaluation Module The LM61460-Q1 EVM has the board populated with the LM61460 in either one of two variants. Based on the label populated, you can figure out which device trim is populated on the EVM and the corresponding features.
  • Page 4 Quick Start www.ti.com Figure 5. Top View of LM61460-Q1 EVM CAUTION Caution Hot surface. Contact may cause burns. Do not touch. LM61460-Q1 EVM User's Guide SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 5: Detailed Descriptions

    Note that the lower resistor in this divider, RENB, is not populated. SNVU621C – May 2019 – Revised December 2019 LM61460-Q1 EVM User's Guide Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 6: Schematic

    The bill of materials from Table 2 is tabulated in Section 7. In addition, Figure 6 shows the corresponding schematic. LM61460-Q1 EVM User's Guide SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 7 CD1 are placeholders for damping networks to be populated. For more information regarding this topic, reference the EMI Filter Components and Their Nonidealities for Automotive DC/DC Regulators Technical Brief. SNVU621C – May 2019 – Revised December 2019 LM61460-Q1 EVM User's Guide Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 8 24.9 kΩ 6.04 kΩ 3 x 22 µF 2 x 4.7 µF + 2 x 1 µH (XEL5030) 100 nF LM61460-Q1 EVM User's Guide SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 9: Board Layout

    Board Layout www.ti.com Board Layout Figure 7 through Figure 12 show the board layout for the LM61460-Q1 EVM. The EVM offers resistors, capacitors, and test points to configure the following: • Output voltage • Precision enable pin • Set frequency •...
  • Page 10: Lm61460Evm Board Test Results

    The EMI measurements were taken following CISPR 25, Class 5 standards. The measurements were taken at 13.5 VIN, 5 VOUT with a 6 A load. LM61460-Q1 EVM User's Guide SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 11 Figure 17. Radiated EMI Measurement with Vertical Bicon Antenna Under CISPR 25 Class 5 Limits Bicon Antenna Under CISPR 25 Class 5 Limits SNVU621C – May 2019 – Revised December 2019 LM61460-Q1 EVM User's Guide Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 12 LM61460AFS populated for FPWM mode efficiency. For 2-MHz data, the output stage has to be changed from the default BOM. The inductor (L1) selected was XEL5030-102MEB. LM61460-Q1 EVM User's Guide SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 13 Figure 25. F = 2.2 MHz, 5 VOUT, Auto Mode Figure 26. F = 2.2 MHz, 5 VOUT, FPWM Mode SNVU621C – May 2019 – Revised December 2019 LM61460-Q1 EVM User's Guide Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 14 Figure 31. F = 400 kHz, 3.3 VOUT, Auto Mode Figure 32. F = 400 kHz, 3.3 VOUT, FPWM Mode LM61460-Q1 EVM User's Guide SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 15 Figure 35. F = 2.2 MHz, 3.3 VOUT, Auto Mode Figure 36. F = 2.2 MHz, 3.3 VOUT, FPWM Mode SNVU621C – May 2019 – Revised December 2019 LM61460-Q1 EVM User's Guide Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 16: Bill Of Materials

    RES, 24.9 k, 1%, 0.1 W, 0603 0603 RC0603FR-0724K9L Yageo 1.00 k RES, 1.00 k, 1%, 0.1 W, 0603 0603 ERJ-3EKF1001V Panasonic LM61460-Q1 EVM User's Guide SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 17 RES, 0.51, 1%, 0.25 W, 0805 0805 CRM0805-FX-R510ELF Bourns 100 k RES, 100 k, 1%, 0.1 W, 0603 0603 RC0603FR-07100KL Yageo SNVU621C – May 2019 – Revised December 2019 LM61460-Q1 EVM User's Guide Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 18 Figure 12 ..............• Changed connected descriptions to match the new EVM design ......................• Changed the Bill of Materials Revision History SNVU621C – May 2019 – Revised December 2019 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated...
  • Page 19 STANDARD TERMS FOR EVALUATION MODULES 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.
  • Page 20 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
  • Page 21 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
  • Page 22 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
  • Page 23 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
  • Page 24 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
  • Page 25 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments LM61460EVM-AS-400K...