SNVU698B September   2020  – December 2020 LMQ61460-Q1

 

  1.   1
  2.   Trademarks
  3. 1Introduction
    1. 1.1 LMQ61460-Q1 Synchronous Step-Down Voltage Converter
  4. 2Quick Start Guide
  5. 3Detailed Descriptions
  6. 4Schematic
    1. 4.1 Alternative BOM Configurations
  7. 5Board Layout
  8. 6LMQ61460EVM-400K Board Test Results
    1. 6.1 EMI
    2. 6.2 Board Efficiency
    3. 6.3 Load Regulation
    4. 6.4 Thermals
  9. 7Bill of Materials
  10. 8Revision History

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
DESIGNATORQUANTITYVALUEDESCRIPTIONPACKAGE REFERENCEPART NUMBERMANUFACTURER
C1, C424.7 µFCAP, CERM, 4.7 µF, 50 V, ±20%, X7R, AEC-Q200 Grade 1, 12101210UMK325B7475MMHTTaiyo Yuden
C2, C320.022 µFCAP, CERM, 0.022 µF, 50 V, ±10%, X7R, 04020402GRM155R71H223KA12DMuRata
C511 µFCAP, CERM, 1 µF, 25 V, ±10%, X7R, 08050805C0805C105K3RACTUKemet
C6, C7, C8, C9422 µFCAP, CERM, 22 µF, 16 V, ±20%, X7R, AEC-Q200 Grade 1, 12101210CGA6P1X7R1C226M250ACTDK
C1211000 pFCAP, CERM, 1000 pF, 50 V, ±0%, X7R, 06030603C0603C102K5RACTUKemet
C1310.1 µFCAP, CERM, 0.1 µF, 10 V, ±10%, X7R, 06030603C0603X104K8RACTUKemet
C1511 µFCAP, CERM, 1 µF, 16 V, ±10%, X7R, 06030603885012206052Wurth Elektronik
C16122 pFCAP, CERM, 22 pF, 50 V, ±5%, C0G/NP0, AEC-Q200 Grade 1, 06030603CGA3E2C0G1H220J080AATDK
C17, C18, C19, C2042.2 µFCAP, CERM, 2.2 µF, 50 V, ±10%, X7R, AEC-Q200 Grade 1, 08050805CGA4J3X7R1H225K125ABTDK
C21, C2220.47 µFCAP, CERM, 0.47 µF, 50 V, ±10%, X7R, AEC-Q200 Grade 1, 06030603CGA3E3X7R1H474K080AETDK
J1, J2, J33Terminal Block, 5 mm, 2x1, Tin, THTerminal Block, 5 mm, 2x1, TH691 101 710 002Wurth Elektronik
J41Header, 100 mil, 3x1, Gold, THHeader, 100 mil, 3x1, THHTSW-103-07-G-SSamtec
L114.7 µHInductor, Shielded, Hyperflux, 4.7 µH, 7.4 A, 0.0143 Ω, SMD6.65x6.45 mm74439346047Wurth Elektronik
L211.2 µH Shielded Molded Inductor 7.5 A, 11.3 mΩ Max 2-SMDSMD2744316220Wurth Electronics
LBL11PCB Label 0.650 x 0.200 inchTHT-14-423-10Brady
R1, R621.00 k ΩRES, 1.00 k, 1%, 0.25 W, 12061206RC1206FR-071KLYageo America
R210 ΩRES, 0, 5%, 0.1 W, 06030603RC0603JR-070RLYageo
R3133.2 kΩRES, 33.2 k, 1%, 0.1 W, AEC-Q200 Grade 0, 06030603CRCW060333K2FKEAVishay-Dale
R4, R72100 kΩRES, 100 k, 1%, 0.1 W, 06030603RC0603FR-07100KLYageo
R51100 ΩRES, 100, 1%, 0.1 W, 06030603RC0603FR-07100RLYageo
R8124.9 kΩRES, 24.9 k, 1%, 0.1 W, 06030603RC0603FR-0724K9LYageo
R911.00 kΩRES, 1.00 k, 1%, 0.1 W, 06030603ERJ-3EKF1001VPanasonic
R101255 kΩRES, 255 k, 1%, 0.1 W, 06030603RC0603FR-07255KLYageo
SH-J11Shunt, 100 mil, Gold plated, BlackShunt 2 pos. 100 mil881545-2TE Connectivity
TP1, TP92Test Point, Multipurpose, Red, THRed Multipurpose Testpoint5010Keystone
TP2, TP3, TP5, TP64Test Point, Multipurpose, Black, THBlack Multipurpose Testpoint5011Keystone
TP4, TP72Test Point, Multipurpose, Orange, THOrange Multipurpose Testpoint5013Keystone
TP8, TP102Test Point, Multipurpose, White, THWhite Multipurpose Testpoint5012Keystone
U11Automotive 6-A Low Noise Synchronous Buck Regulators, RJR0014A (VQFN-HR-14)RJR0014ALMQ61460AASQRJRRQ1Texas Instruments
C10, C11022 µFCAP, CERM, 22 µF, 16 V, ±20%, X7R, AEC-Q200 Grade 1, 12101210CGA6P1X7R1C226M250ACTDK
C1401 µFCAP, CERM, 1 µF, 10 V, ±10%, X7R, 06030603GRM188R71A105KA61DMuRata
C23, C2401 µFCAP, CERM, 1 µF, 50 V, ±10%, X7R, 06030603UMK107AB7105KA-TTaiyo Yuden
FID1, FID2, FID3, FID4, FID5, FID60Fiducial mark. There is nothing to buy or mount.N/AN/AN/A
R1200.51 ΩRES, 0.51, 1%, 0.25 W, 08050805CRM0805-FX-R510ELFBourns
R130100 kΩRES, 100 k, 1%, 0.1 W, 06030603RC0603FR-07100KLYageo