SNVU820 February   2022 LM5149-Q1

 

  1.   Trademarks
  2. 1High Density EVM Description
    1. 1.1 Typical Applications
    2. 1.2 Features and Electrical Performance
  3. 2EVM Characteristics
  4. 3Application Circuit Diagram
  5. 4EVM Photo
  6. 5Test Setup and Procedure
    1. 5.1 EVM Connections
    2. 5.2 Test Equipment
    3. 5.3 Recommended Test Setup
      1. 5.3.1 Input Connections
      2. 5.3.2 Output Connections
    4. 5.4 Test Procedure
      1. 5.4.1 Line and Load Regulation, Efficiency
  7. 6Test Data and Performance Curves
    1. 6.1 Conversion Efficiency
    2. 6.2 Operating Waveforms
      1. 6.2.1 Switching
      2. 6.2.2 Load Transient Response
      3. 6.2.3 Line Transient Response
      4. 6.2.4 Start-Up and Shutdown With EN
      5. 6.2.5 Start-Up and Shutdown with VIN
    3. 6.3 Bode Plot
    4. 6.4 CISPR 25 EMI Performance
    5. 6.5 Thermal Performance
  8. 7EVM Documentation
    1. 7.1 Schematic
    2. 7.2 List of Materials
    3. 7.3 PCB Layout
    4. 7.4 Component Drawings
  9. 8Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
        1. 8.2.1.1 PCB Layout Resources
        2. 8.2.1.2 Thermal Design Resources

7.2 List of Materials

Table 7-1 List of Materials
QTYREF DESDESCRIPTIONPART NUMBERMFR
2C1, C7Capacitor, Ceramic, 0.1 μF, 100 V, X7R, 0603, AEC-Q200GCJ188R72A104KA01DMurata
1C2Capacitor, Ceramic, 1000 pF, 100 V, X7R, 0402, AEC-Q200GRM155R72A102KA01DMurata
1C3Capacitor, Ceramic, 0.47 μF, 100 V, X7R, 0805, AEC-Q200CGA4J3X7S2A474K125ABTDK
3C4, C8, C9Capacitor, Ceramic, 0.01 μF, 100 V, X7R, 0603, AEC-Q200GCM188R72A103KA37JMurata
1 C6 Capacitor, Ceramic, 0.22 μF, 100 V, X7R, 0603, AEC-Q200 HMK107C7224KAHTE Taiyo Yuden
2C10, C11Capacitor, Ceramic, 1 μF, 100 V, X7R, 0805, AEC-Q20008051C105K4Z2AAVX
1C12Capacitor, Aluminum, 100 µF, 100 V, 0.33 Ω, AEC-Q200EMVY101ARA101MKE0SUnited Chemi-Con
5C13, C14, C15, C16, C42Capacitor, Ceramic, 4.7 μF, 100 V, X7S, 1210, AEC-Q200CGA6M3X7S2A475K200ABTDK
GCM32DC72A475KE02LMurata
6C17, C18, C19, C20, C21, C22Capacitor, Ceramic, 0.01 μF, 100 V, X7S, 0402 AEC-Q200CGA2B3X7S2A103K050BBTDK
1C23Capacitor, Ceramic, 4.7 μF, 25 V, X7R, 0805,AEC-Q200CGA4J1X7R1E475K125ACTDK
1C24Capacitor, Ceramic, 0.1 µF, 10 V, X7R, 0402, AEC-Q200StdStd
1C25Capacitor, Ceramic, 4.7 μF, 10 V, X7R, 0603GRM188Z71A475ME15DMurata
1C26Capacitor, Ceramic, 0.47 μF, 50 V, X7R, 0805 AEC-Q200GCM21BR71H474KA55LMurata
1 C27 Capacitor, Ceramic, 0.1 μF, 50 V, X7R, 0402, AEC-Q200 CGA2B3X7R1H104K050BB TDK
4C28, C29, C30, C31Capacitor, Ceramic, 22 μF, 25 V, X7R, 1210GRM32ER71E226KE15LMurata
1C32Capacitor, Ceramic, 0.1 μF, 50 V, X7R, 0603C0603C104K5RAC-TUKEMET
1C34Capacitor, Ceramic, 33 pF, 50 V, C0G/NP0, 0402, AEC-Q200GCM1555C1H330JA16DMurata
1C35Capacitor, Ceramic, 100 pF, 50 V, C0G/NP0, 0402, AEC-Q200CGA2B2C0G1H101J050BATDK
1C37Capacitor, Ceramic, 6800 pF, 50 V, X7R, 0402GCM155R71H682KA55DMurata
2J1, J3Terminal Block, 2 position, 5 mm, THStdStd
1J2Header, 100 mil, 13 × 1, Au, THStdStd
1L1Inductor, 1 μH, 8.2 mΩ typical, 6.3 A, 4 × 4 × 2.1 mm typ, AEC-Q200XGL4020-102MEBCoilcraft
1 L2 Common Mode Choke, 700 Ω at 100 MHz, 4 A, 15 mΩ, 7.0 × 6.0 × 3.8 mm typical, AEC-Q200 CM7060P701R-10 Laird
1L3Inductor, 6.8 μH, 12 mΩ, 13.3 A, 10.85 × 10 × 5.2 mm typical, AEC-Q200VCHA105D-6R8MS6Cyntec
Inductor, 6.8 μH, 13.3 mΩ, 21.4 A, 10.5 × 10 × 6.5 mm typical, AEC-Q200SPM10065VT-6R8M-DTDK
1Q1MOSFET, N-Channel, 80 V, 19.5 mΩ, 12 nC, SON 5 × 6, AEC-Q101NVMFS6H858NLT1GOnsemi
1 Q2 MOSFET, N-Channel, 80 V, 8.8 mΩ, 25 nC, SON 5 × 6, AEC-Q101 NVMFS6H848NLT1G Onsemi
1R1Resistor, Chip, 15 Ω, 1/16 W, 1%, 0402StdStd
1R2Resistor, Chip, 0.47 Ω, 1/10 W, 5%, 0603StdStd
1R3Resistor, Chip, 0 Ω, 1/8 W, 1%, 0805StdStd
1R4Resistor, Chip, 1 kΩ, 1/16 W, 1%, 0402StdStd
1R5Resistor, Chip, 49.9 kΩ, 1/16 W, 1%, 0402StdStd
1R6Resistor, Chip, 3.32 Ω, 1/16 W, 1%, 0402StdStd
1R7Resistor, Chip, 100 kΩ, 1/10 W, 1%, 0603StdStd
1R8Resistor, Chip, 22.1 kΩ, 1/16 W, 1%, 0402StdStd
1R9Resistor, Chip, 0 Ω, 1/5 W, 1%, 0402StdStd
1R11Resistor, Chip, 5 mΩ, 1 W, 1%, 0508, AEC-Q200KRL2012E-M-R005-F-T5Susumu
2 R12, R20 Resistor, Chip, 100 kΩ, 1/16 W, 1%, 0402 Std Std
1R13Resistor, Chip, 56.2 kΩ, 1/16 W, 1%, 0402StdStd
2R16, R17Resistor, Chip, 49.9 Ω, 1/16 W, 1%, 0402StdStd
1R18Resistor, Chip, 4.75 kΩ, 1/16 W, 1%, 0402StdStd
1R19Resistor, Chip, 41.2 kΩ, 1/16 W, 1%, 0402StdStd
1R22Resistor, Chip, 7.15 kΩ, 1/16 W, 1%, 0402StdStd
4TP1, TP2, TP3, TP4Test Point, Miniature, SMT5019Keystone
1U1IC, LM5149-Q1, 80-V Synchronous Buck Controller, VQFN-24LM5149QRGYRQ1TI
1PCB1PCB, FR4, 6 layer, 2 oz, 83 mm × 43 mmPCB–