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7 Bill of Materials

The bill of materials is shown 

Table 7-1

 for the LMQ61460EVM-400K.

Table 7-1. LMQ61460EVM-400K EVM Bill of Materials

DESIGNATOR

QUANTITY

VALUE

DESCRIPTION

PACKAGE REFERENCE PART NUMBER

MANUFACTURER

C1, C4

2

4.7 µF

CAP, CERM, 4.7 µF, 50 V, ±20%, X7R, AEC-
Q200 Grade 1, 1210

1210

UMK325B7475MMHT

Taiyo Yuden

C2, C3

2

0.022 µF

CAP, CERM, 0.022 µF, 50 V, ±10%, X7R, 0402 0402

GRM155R71H223KA12D MuRata

C5

1

1 µF

CAP, CERM, 1 µF, 25 V, ±10%, X7R, 0805

0805

C0805C105K3RACTU

Kemet

C6, C7, C8, C9

4

22 µF

CAP, CERM, 22 µF, 16 V, ±20%, X7R, AEC-
Q200 Grade 1, 1210

1210

CGA6P1X7R1C226M250
AC

TDK

C12

1

1000 pF

CAP, CERM, 1000 pF, 50 V, ±0%, X7R, 0603

0603

C0603C102K5RACTU

Kemet

C13

1

0.1 µF

CAP, CERM, 0.1 µF, 10 V, ±10%, X7R, 0603

0603

C0603X104K8RACTU

Kemet

C15

1

1 µF

CAP, CERM, 1 µF, 16 V, ±10%, X7R, 0603

0603

885012206052

Wurth Elektronik

C16

1

22 pF

CAP, CERM, 22 pF, 50 V, ±5%, C0G/NP0,
AEC-Q200 Grade 1, 0603

0603

CGA3E2C0G1H220J080
AA

TDK

C17, C18, C19, C20

4

2.2 µF

CAP, CERM, 2.2 µF, 50 V, ±10%, X7R, AEC-
Q200 Grade 1, 0805

0805

CGA4J3X7R1H225K125
AB

TDK

C21, C22

2

0.47 µF

CAP, CERM, 0.47 µF, 50 V, ±10%, X7R, AEC-
Q200 Grade 1, 0603

0603

CGA3E3X7R1H474K080
AE

TDK

J1, J2, J3

3

Terminal Block, 5 mm, 2x1, Tin, TH

Terminal Block, 5 mm,
2x1, TH

691 101 710 002

Wurth Elektronik

J4

1

Header, 100 mil, 3x1, Gold, TH

Header, 100 mil, 3x1, TH HTSW-103-07-G-S

Samtec

L1

1

4.7 µH

Inductor, Shielded, Hyperflux, 4.7 µH, 7.4 A,
0.0143 Ω, SMD

6.65x6.45 mm

74439346047

Wurth Elektronik

L2

1

1.2 µH Shielded Molded Inductor 7.5 A, 11.3
mΩ Max 2-SMD

SMD2

744316220

Wurth Electronics

LBL1

1

PCB Label 0.650 x 0.200
inch

THT-14-423-10

Brady

R1, R6

2

1.00 k Ω

RES, 1.00 k, 1%, 0.25 W, 1206

1206

RC1206FR-071KL

Yageo America

R2

1

0 Ω

RES, 0, 5%, 0.1 W, 0603

0603

RC0603JR-070RL

Yageo

R3

1

33.2 kΩ

RES, 33.2 k, 1%, 0.1 W, AEC-Q200 Grade 0,
0603

0603

CRCW060333K2FKEA

Vishay-Dale

R4, R7

2

100 kΩ

RES, 100 k, 1%, 0.1 W, 0603

0603

RC0603FR-07100KL

Yageo

R5

1

100 Ω

RES, 100, 1%, 0.1 W, 0603

0603

RC0603FR-07100RL

Yageo

R8

1

24.9 kΩ

RES, 24.9 k, 1%, 0.1 W, 0603

0603

RC0603FR-0724K9L

Yageo

R9

1

1.00 kΩ

RES, 1.00 k, 1%, 0.1 W, 0603

0603

ERJ-3EKF1001V

Panasonic

R10

1

255 kΩ

RES, 255 k, 1%, 0.1 W, 0603

0603

RC0603FR-07255KL

Yageo

SH-J1

1

Shunt, 100 mil, Gold plated, Black

Shunt 2 pos. 100 mil

881545-2

TE Connectivity

www.ti.com

Bill of Materials

SNVU698B – SEPTEMBER 2020 – REVISED DECEMBER 2020

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LMQ61460EVM-400K User's Guide

17

Copyright © 2021 Texas Instruments Incorporated

Содержание LMQ61460EVM-400K

Страница 1: ... exceptional efficiency and output accuracy in a very small solution size The EVM provides multiple power connectors and test points In addition to an optimized EMI board layout the LMQ61460 Q1 utilizes integrated bypass capacitors which results in great EMI performance Table 1 1 Device and Package Configurations CONVERTER IC PACKAGE U1 LMQ61460 Q1 14 pin wettable flanks Hotrod package 4 0 mm 3 5 ...

Страница 2: ...oard Test Results 12 6 1 EMI 12 6 2 Board Efficiency 13 6 3 Load Regulation 14 6 4 Thermals 15 7 Bill of Materials 17 8 Revision History 19 Trademarks Hotrod is a trademark of Texas Instruments All trademarks are the property of their respective owners Table of Contents www ti com 2 LMQ61460EVM 400K User s Guide SNVU698B SEPTEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2021 ...

Страница 3: ...Q61460AFS IC swap Power good flag PG jumper Precision enable EN jumper with RENT and RENB resistors Automatic frequency foldback at light load and optional external bias improve efficiency over the entire load range The device requires few external components and has a pinout designed for optimal EMI and thermal performance Protection features include the following Thermal shutdown Input undervolt...

Страница 4: ...rrent Set the current limit of the supply to an appropriate level to supply needed current and protection 4 Turn on the power supply With the default configuration the EVM powers up and provides VOUT equal to 5 V 5 Monitor the output voltage with sense points The maximum load current is 6 A with the LMQ61460 Q1 Note that the maximum output current may need to derate if ambient temperature is high ...

Страница 5: ... oscillation between the cable parasitic inductance and the existing low ESR ceramic capacitors VIN_EMI Low EMI option If the input filter is required connect the supply voltage between VIN_EMI and GND_EMI The supply voltage must be connected to the board with short and thick wires The input filter consists of the following CF1 CF2 CF3 CF4 CF5 CF6 and L2 CD1 CD2 RD1 and RD2 are provided to allow m...

Страница 6: ... value resistor Rinj is placed between VOUT and this node The feedback divider of the board is connected to this node An AC signal is applied across Rinj when taking measurements for bode plots VOUTS VOUT sense This connector is provided for measuring the output voltage accurately VINS VIN sense This connector is provided for measuring the input voltage accurately Detailed Descriptions www ti com ...

Страница 7: ...use issues for ideal device operation RD2 CD2 RD1 and 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 www ti com Schematic SNVU698B SEPTEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback LMQ61460EVM 400K User s Guide 7 Copyright 2021...

Страница 8: ... 3 V 2100 kHz 43 2 kΩ 6 04 kΩ 3 x 22 µF 2 x 4 7 µF 2 x 100 nF 1 µH XEL5030 5 V 400 kHz 24 9 kΩ 33 2 kΩ 4 x 22 µF 2 x 4 7 µF 2 x 100 nF 4 7 µH XHMI6060 5 V 2100 kHz 24 9 kΩ 6 04 kΩ 3 x 22 µF 2 x 4 7 µF 2 x 100 nF 1 µH XEL5030 Schematic www ti com 8 LMQ61460EVM 400K User s Guide SNVU698B SEPTEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 9: ... The PCB consists of a 4 layer design There are 2 oz copper planes on the top and bottom and 1 oz copper mid layer planes to route signals and dissipate heat with an array of thermal vias to connect to all four layers Test points have been provided for ease of use to connect the power supply and required load and to monitor critical signals The board measures 3 00 x 4 00 76mm x 101mm Figure 5 1 To...

Страница 10: ...ayer Figure 5 3 Signal Layer 1 Ground Plane Board Layout www ti com 10 LMQ61460EVM 400K User s Guide SNVU698B SEPTEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 11: ...al Layer 2 Routing Figure 5 5 Bottom Layer www ti com Board Layout SNVU698B SEPTEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback LMQ61460EVM 400K User s Guide 11 Copyright 2021 Texas Instruments Incorporated ...

Страница 12: ...30 MHz Figure 6 2 Conducted EMI Measurement with CISPR 25 Class 5 Limit Lines 30 MHz to 108 MHz Figure 6 3 Radiated EMI Measurement with Horizontal Bicon Antenna Under CISPR 25 Class 5 Limits Figure 6 4 Radiated EMI Measurement with Vertical Bicon Antenna Under CISPR 25 Class 5 Limits LMQ61460EVM 400K Board Test Results www ti com 12 LMQ61460EVM 400K User s Guide SNVU698B SEPTEMBER 2020 REVISED DE...

Страница 13: ... 85 90 95 100 LM61 VIN 8 V VIN 13 5 V VIN 24 V Figure 6 7 FSW 400 kHz 5 VOUT Auto Mode Load Current A Efficiency 0 1 2 3 4 5 6 7 50 55 60 65 70 75 80 85 90 95 100 LM61 VIN 8 V VIN 13 5 V VIN 24 V Figure 6 8 FSW 400 kHz 5 VOUT FPWM Mode Output Current A Efficiency 0 001 0 010 02 0 05 0 1 0 2 0 5 1 2 3 45 7 10 60 65 70 75 80 85 90 95 100 LM61 VIN 8 V VIN 13 5 V VIN 24 V Figure 6 9 FSW 400 kHz 3 3 VO...

Страница 14: ...VOUT FPWM Mode 6 3 Load Regulation This section provides efficiency plots for the board with LMQ61460AAS populated for Auto mode efficiency and LMQ61460AFS populated for FPWM mode efficiency For 2 1 MHz data the output stage has to be changed from the default BOM The inductor L1 selected was XEL5030 102MEB Output Current A Output Voltage V 0 1 2 3 4 5 6 7 4 95 4 97 4 99 5 01 5 03 5 05 5 07 5 09 5 ...

Страница 15: ...5 07 5 09 5 11 SNVS VIN 8 V VIN 13 5 V VIN 24 V Figure 6 20 FSW 2 1 MHz 5 VOUT FPWM Mode Output Current A Output Voltage V 0 1 2 3 4 5 6 7 3 29 3 31 3 33 3 35 3 37 SNVS VIN 8 V VIN 13 5 V VIN 24 V Figure 6 21 FSW 2 1 MHz 3 3 VOUT Auto Mode Output Current A Output Voltage V 0 1 2 3 4 5 6 7 3 29 3 31 3 33 3 35 3 37 SNVS VIN 8 V VIN 13 5 V VIN 24 V Figure 6 22 FSW 2 1 MHz 3 3 VOUT FPWM Mode 6 4 Therm...

Страница 16: ...temperature as the case package is very thin resulting in low psi jt This demonstrates device capability of operating greater than 85 C ambient with headroom LMQ61460EVM 400K Board Test Results www ti com 16 LMQ61460EVM 400K User s Guide SNVU698B SEPTEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 17: ...3 CGA3E3X7R1H474K080 AE TDK J1 J2 J3 3 Terminal Block 5 mm 2x1 Tin TH Terminal Block 5 mm 2x1 TH 691 101 710 002 Wurth Elektronik J4 1 Header 100 mil 3x1 Gold TH Header 100 mil 3x1 TH HTSW 103 07 G S Samtec L1 1 4 7 µH Inductor Shielded Hyperflux 4 7 µH 7 4 A 0 0143 Ω SMD 6 65x6 45 mm 74439346047 Wurth Elektronik L2 1 1 2 µH Shielded Molded Inductor 7 5 A 11 3 mΩ Max 2 SMD SMD2 744316220 Wurth Ele...

Страница 18: ... Buck Regulators RJR0014A VQFN HR 14 RJR0014A LMQ61460AASQRJRRQ 1 Texas Instruments C10 C11 0 22 µF CAP CERM 22 µF 16 V 20 X7R AEC Q200 Grade 1 1210 1210 CGA6P1X7R1C226M250 AC TDK C14 0 1 µF CAP CERM 1 µF 10 V 10 X7R 0603 0603 GRM188R71A105KA61D MuRata C23 C24 0 1 µF CAP CERM 1 µF 50 V 10 X7R 0603 0603 UMK107AB7105KA T Taiyo Yuden FID1 FID2 FID3 FID4 FID5 FID6 0 Fiducial mark There is nothing to b...

Страница 19: ...ciency Curve 5V 2 1MHz FPWM 13 Changes from Revision March 2020 to Revision A September 2020 Page Changed image from 3D imaging to a physical board image 1 Added Board Efficiency 13 Added Load Regulation 14 Added Thermals 15 www ti com Revision History SNVU698B SEPTEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback LMQ61460EVM 400K User s Guide 19 Copyright 2021 Texas Instruments Incorporat...

Страница 20: ...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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