SNVU838A October   2022  – November 2022 LMR51450

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 LMR51450 Synchronous Step-Down Voltage Converter
    2. 1.2 LMR51450 Evaluation Module
  4. 2Quick Start
  5. 3Detailed Descriptions
    1. 3.1 Connectors
    2. 3.2 Jumpers
  6. 4Schematic
  7. 5Board Layout
  8. 6Bill of Materials
  9. 7Revision History

6 Bill of Materials

The bill of material is shown in Table 6-1 for the LMR51450 EVM.

Table 6-1 LMR51450 EVM Bill of Materials
DESIGNATOR QTY DESCRIPTION PART NUMBER MANUFACTURER
PCB 1 Printed Circuit Board BSR246 Rev A Any
C4, CO6 2 CAP, CERM, 1000 pF, 50 V,+/- 10%, X7R, 0603 885012206083 Wurth Elektronik
C5, CO5, CO7 3 CAP, CERM, 0.1 uF, 50 V, +/- 5%, X7R, 0805 08055C104JAT2A AVX
C6, C7 2 CAP, CERM, 4.7 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 1210 CGA6P3X7R1H475K250AB TDK
C8 1 CAP, Aluminum Polymer, 100 uF, 63 V, +/- 20%, 0.024 ohm, SMD, 2-Leads, Dia 10.5 mm, Pin Spacing 8 mm SMD PCR1J101MCL1GS Nichicon
CBoot 1 CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0603 06035C104KAT2A AVX
CFF 1 CAP, CERM, 33 pF, 50 V, +/- 5%, C0G/NP0, 0603 06035A330JAT2A AVX
CO2, CO4 2 CAP, CERM, 47 uF, 10 V, +/- 20%, X7R, 1210 GRM32ER71A476ME15L MuRata
EN, VI, VO 3 Test Point, Multipurpose, Purple, TH 5129 Keystone Electronics
GND1, GND2, GND3, GND4, GND5 5 Test Point, Multipurpose, Black, TH 5011 Keystone Electronics
J1, J4 2 Header, 100mil, 2x1, Gold, TH TSW-102-07-G-S Samtec
J2, J3 2 Header, 100mil, 3x1, Gold, TH TSW-103-07-G-S Samtec
J5, J6, J7 3 Terminal Block, 2x1, 5 mm, Green, TH 1935776 Phoenix Contact
L1 1 Inductor, Shielded Drum Core, Powdered Iron, 4.7 uH, 7 A, 0.015 ohm, SMD 74437368047 Wurth Elektronik
LBL1 1 Thermal Transfer Printable Labels, 0.650" W x 0.200" H - 10,000 per roll THT-14-423-10 Brady
R1, Rc, RFF 3 RES, 0, 5%, 0.1 W, 0603 RC0603JR-070RL Yageo, Yageo America
R_PG, RENB, RFBB 3 RES, 16.0 k, 1%, 0.1 W, 0603 RC0603FR-0716KL Yageo
RENT 1 RES, 68.1 k, 1%, 0.1 W, 0603 RC0603FR-0768K1L Yageo
RFBT1 1 RES, 49.9 k, 1%, 0.1 W, 0603 RC0603FR-0749K9L Yageo
RFBT2 1 RES, 34.0 k, 1%, 0.1 W, 0603 RC0603FR-0734KL Yageo
Rinj 1 RES, 49.9, 1%, 0.1 W, 0603 RC0603FR-0749R9L Yageo
RT 1 RES, 31.6 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 CRCW060331K6FKEA Vishay-Dale
SH-J2, SH-J3, SH-J4 3 Shunt, 100mil, Tin plated, Black SNT-100-BK-T-H Samtec
SW 1 Test Point, Miniature, SMT 5019 Keystone
U1 1 36-V, 5-A Synchronous Step-down Converter LMR51450SDRR Texas Instruments
C1, C2 0 CAP, CERM, 1 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 1210 CGA6L2X7R1H105K160AA TDK
CO1, CO3 0 CAP, CERM, 47 uF, 10 V, +/- 20%, X7R, 1210 GRM32ER71A476ME15L MuRata
D1 0 Diode, Schottky, 40 V, 1 A, SOD-123 1N5819HW-7-F Diodes Inc.