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User's Guide
LM76005QEVM User's Guide
1 LM76005QEVM User's Guide
The Texas Instruments LM76005QEVM evaluation modules (EVM) help designers evaluate the operation and
performance of the LM76005-Q1 wide-input voltage buck regulator. The output voltage for the device offers
configurability from 1-V to 95% of V
500-kHz adjustable frequency range with a 400-kHz default frequency. It also offers external frequency
synchronization, power-good (PG) flag, and a precision enable to program undervoltage lockout (UVLO) and
internal compensation. Built-in protection includes current limit, overvoltage and undervoltage protection, and
thermal shutdown. The LM76005QEVM is configured for an output voltage of 3.3 V and a switching frequency of
400 kHz. Refer to the
LM76005-Q1 3.5-V to 60-V, 5-A Synchronous Step-Down Voltage Regulator Data Sheet
for additional features, detailed description, and available options.
The EVM contains one DC-DC converter (see
CONVERTER
2
Setup........................................................................................................................................................................................2
Setup.....................................................................................................................................................................3
2.3 Operation...........................................................................................................................................................................
3
Schematic................................................................................................................................................................................4
Layout...........................................................................................................................................................................5
Materials......................................................................................................................................................................11
6 Application Curves...............................................................................................................................................................
7 Revision History...................................................................................................................................................................
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SNVU694A - FEBRUARY 2020 - REVISED JULY 2020
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, synchronous rectification, PFM, and forced PWM mode and a 200-kHz to
IN
Table
Table 1-1. Device and Package Configurations
U1
Table of Contents
Guide.................................................................................................................................................1
Description...........................................................................................................................2
Copyright © 2020 Texas Instruments Incorporated
1-1).
IC
LM76005-Q1
LM76005QEVM User's Guide
PACKAGE
(RNP) WQFN-30
LM76005QEVM User's Guide
3
12
12
1
Table of Contents
Related Manuals for Texas Instruments LM76005QEVM
Summary of Contents for Texas Instruments LM76005QEVM
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Page 1: Table Of Contents
(PG) flag, and a precision enable to program undervoltage lockout (UVLO) and internal compensation. Built-in protection includes current limit, overvoltage and undervoltage protection, and thermal shutdown. The LM76005QEVM is configured for an output voltage of 3.3 V and a switching frequency of 400 kHz. Refer to the LM76005-Q1 3.5-V to 60-V, 5-A Synchronous Step-Down Voltage Regulator Data Sheet... -
Page 2: Lm76005Qevm User's Guide
Figure 2-1 for a top view of the EVM and relative placement of the different test points and connectors. Figure 2-1. Top View of LM76005QEVM 2.1 Input/Output (I/O) Connector Description VIN – Terminal on The power input terminal for the converter VOUT –... -
Page 3: Voltage Setup
R7 and R8; consult the data sheet for proper selection of these resistor values. The default frequency for the LM76005QEVM is 400 kHz. If other frequencies are desired within the frequency range of 200 kHz and 500 kHz, the R resistor value can be changed. -
Page 4: Schematic
Schematic www.ti.com 3 Schematic Figure 3-1. LM76005QEVM Schematic LM76005QEVM User’s Guide SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated... -
Page 5: Board Layout
Figure 4-1 through Figure 4-5 show the board layout for the LM76005QEVM. The EVM offers resistors, capacitors, and test points to configure the output voltage and precision enable pin, and set frequency and external clock synchronization. The RNP WQFN-30 package offers an exposed thermal pad which must be soldered to the copper landing on the PCB for optimal thermal performance. - Page 6 Board Layout www.ti.com Figure 4-2. Top Layer Routing LM76005QEVM User’s Guide SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
- Page 7 Board Layout Figure 4-3. Mid Layer 1 Ground Plane SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 LM76005QEVM User’s Guide Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
- Page 8 Board Layout www.ti.com Figure 4-4. Mid Layer 2 Routing LM76005QEVM User’s Guide SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
- Page 9 Board Layout Figure 4-5. Bottom Layer Routing SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 LM76005QEVM User’s Guide Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
- Page 10 Board Layout www.ti.com Figure 4-6. Bottom Layer Routing LM76005QEVM User’s Guide SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
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Page 11: Bill Of Materials
Bill of Materials 5 Bill of Materials Table 5-1. LM76005QEVM Bill of Materials (BOM) for 400-kHz Configuration DESIGNATOR COMMENT DESCRIPTION MANUFACTURER PART NUMBER QUANTITY Printed Circuit Board Printed Circuit Board BSR112 C7, C8 CAP, CERM, 4.7 µF, 100 V, ±10%, X7S, 1210... -
Page 12: Application Curves
Figure 6-6. LM76005-Q1 Thermal Picture 7 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. LM76005QEVM User’s Guide SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated... - Page 13 • Updated Figure 2-1 ............................2 • Updated Section 2.2 ............................• Updated Section 4 ............................. • Updated Table 5-1 ............................11 SNVU694A – FEBRUARY 2020 – REVISED JULY 2020 LM76005QEVM User’s Guide Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
- Page 14 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 15 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 16 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 17 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 18 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 19 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 © 2020, Texas Instruments Incorporated...