SNVU837 January   2023 LMR43620-Q1

 

  1.   LMR43620RQ5EVM-400 EVM User’s Guide
  2.   Trademarks
  3. 1Setup
    1. 1.1 Test Points
    2. 1.2 Jumpers
  4. 2Operation
    1. 2.1 Quick Start
  5. 3Schematic
  6. 4Board Layout
  7. 5Bill of Materials
  8. 6Test Results
    1. 6.1 LMR43620RQ5EVM-400 Test Results
      1. 6.1.1 Efficiency and Load Regulation
      2. 6.1.2 Load Transients
      3. 6.1.3 Output Ripple and Thermal Picture
      4. 6.1.4 Conducted EMI

5 Bill of Materials

Table 5-1 Bill of Materials
DESIGNATORCOMMENTDESCRIPTIONMANUFACTURERPART NUMBERQTY
C1CBCAP, CERM, 0.1 μF, 25 V, ±20%, X7R, 0402TDKC1005X7R1E104M050BB1
C2CBulkCAP, AL, 22 uF, 100 V, 20%, 1.3 OhmPanasonicEEE-TG2A220UP1
C3CDCAP, CERM, 1 μF, 100 V, ±10%, X7R, 1206TDKC3216X7R2A105K160AA0
C4CF2CAP, CERM, 2.2 μF, 100 V, ±10%, X7S, AEC-Q200 Grade 1, 1206TDKCGA5L3X7S2A225K160AB1
C5, C6CF3, CF4CAP, CERM, 0.1 μF, 100 V, ±10%, X7R, AEC-Q200 Grade 1, 0805TDKCGA4J2X7R2A104K125AA2
C7CINCAP, CERM, 4.7 μF, 50 V, ±10%, X7R, 1206MuRataGRM31CR71H475KA12L1
C8CINHFCAP, CERM, 0.1 μF, 50 V, ±10%, X7R, AEC-Q200 Grade 1, 0402MuRataGCM155R71H104KE02D1
C9CF1CAP, CERM, 0.1 μF, 100 V, ±10%, X7R, AEC-Q200 Grade 1, 0805TDKCGA4J2X7R2A104K125AA0
C10CVCCCAP, CERM, 1 μF, 16 V, ±10%, X7R, 0603Wurth Elektronik8850122060521
C11, C12COUT1, COUT2Chip Multilayer Ceramic Capacitors for General Purpose, 1206, 22 μF, X6S, 22%, 10%, 25 VMurataGRM31CC81E226KE11L2
C13COUT3CAP, CERM, 10 µF, 50 V, ±10%, X7R, AEC-Q200 Grade 1, 1206TDKCGA5L1X7R1H106K160AC0
C14CFFCAP, CERM, 22 pF, 50 V, ±5%, C0G/NP0, AEC-Q200 Grade 1, 0402TDKCGA2B2NP01H220J050BA0
C15COUTHFCAP, CERM, 1000 pF, 100 V, ±10%, X7R, 0603MuRataGRM188R72A102KA01D1
FID1, FID2, FID3, FID4, FID5, FID6FiducialFiducial mark. There is nothing to buy or mount.N/AN/A0
J1JENHeader, 100mil, 2x1, Gold, THSamtecHTSW-102-07-G-S1
J2, J3JPGOOD, JRTHeader, 100 mil, 3x1, Gold, THSamtecHTSW-103-07-G-S2
L1744383560565.6 µH, Shielded Molded Inductor, 2.8 A, 81mOhm Max, 2-SMDWurth Electronics744383560561
L2 74438356047 Inductor, Shielded, Metal Composite, 4.7 uH, 2.9 A, 0.076 ohm, SMD Wurth Electronics 74438356047 1
LBL1THT-14-423-10Thermal Transfer Printable Labels, 0.650" W × 0.200" H - 10,000 per rollBradyTHT-14-423-101
R1RENTRES, 100 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402Vishay-DaleCRCW0402100KFKED1
R2RDRES, 4.99, 1%, 0.1 W, AEC-Q200 Grade 0, 0603Vishay-DaleCRCW06034R99FKEA0
R3RENBRES, 100 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402Vishay-DaleCRCW0402100KFKED0
R4, R5, R10RINJ, RFBT, RJENRES, 0, 5%, 0.063 W, AEC-Q200 Grade 0, 0402Vishay-DaleCRCW04020000Z0ED3
R6RFBBRES, 24.9 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402Vishay-DaleCRCW040224K9FKED0
R7RPGOODRES, 100 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603Vishay-DaleCRCW0603100KFKEA1
R8RTRES, 40.2 k, 1%, 0.063 W, 0402Vishay-DaleCRCW040240K2FKED1
R9RJMRES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603Vishay-DaleCRCW06030000Z0EA1
R11RFILTJRES, 0, 1%, 0.5 W, 1206Keystone51081
SH-J1SNT-100-BK-GShunt, 100 mil, Gold plated, BlackSamtecSNT-100-BK-G1
TP1, TP3, TP6, TP8VIN, VOUT, GND, GNDTest Point, Miniature, SMTKeystone50154
TP2, TP4, TP5, TP7, TP9VIN_EMI, VOUT, GND_EMI, GND, GNDTerminal, Turret, TH, DoubleKeystone1502-25
TP10, TP11, TP12, TP14PGOOD, SYNC, EN, VCCTest Point, Multipurpose, White, THKeystone50124
TP13GNDTest Point, Multipurpose, Black, THKeystone50111
U1LMR43620RS5QRPERQ136-V, 2-A Buck Converter with 1.5-µA IQ in 2-mm × 2-mm HotRod QFNTexas InstrumentsLMR43620RS5QRPERQ11