SNVU916 May   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
      1. 1.3.1 Application Circuit Diagram
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Test Setup and Procedure
      1. 2.1.1 EVM Connections
      2. 2.1.2 Test Equipment
      3. 2.1.3 Recommended Test Setup
        1. 2.1.3.1 Input Connections
        2. 2.1.3.2 Output Connections
      4. 2.1.4 Test Procedure
        1. 2.1.4.1 Line and Load Regulation Efficiency
  9. 3Implementation Results
    1. 3.1 Test Data and Performance Curves
      1. 3.1.1 Conversion Efficiency
      2. 3.1.2 Operating Waveforms
        1. 3.1.2.1 Switching
        2. 3.1.2.2 Load Transient Response
        3. 3.1.2.3 Start-Up and Shutdown With ENABLE ON and OFF
        4. 3.1.2.4 Start-Up and Shutdown with EN Tied to VIN
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Device and Documentation Support
    1. 5.1 Device Support
      1. 5.1.1 Development Support
    2. 5.2 Documentation Support
      1. 5.2.1 Related Documentation
        1. 5.2.1.1 PCB Layout Resources
        2. 5.2.1.2 Thermal Design Resources
  12. 6Additional Information
    1. 6.1 Trademarks

4.3 Bill of Materials

Table 4-1 Bill of Materials
Designator Quantity Value Description Part Number Manufacturer
C1 1 47uF CAP, AL, 47uF, 50V, +/- 20%, 0.68 ohm, AEC-Q200 Grade 2, SMD EEE-FK1H470P Panasonic
C4, C20 2 0.1uF CAP, CERM, 0.1uF, 50V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 CGA2B3X7R1H104K050BB TDK
C5, C6 2 0.01uF CAP, CERM, 0.01uF, 50V, +/- 10%, X7R, 0603 C1608X7R1H103K080AA TDK
C7, C8 2 2.2uF CAP, CERM, 2.2uF, 50V, +/- 10%, X7R, 0805 UMK212BB7225KG-T Taiyo Yuden
C9 1 4.7uF CAP, CERM, 4.7uF, 10V, +/- 20%, X7R, 0603 GRM188Z71A475ME15D MuRata
C10 1 0.47uF CAP, CERM, 0.47uF, 50V, +/- 10%, X7R, AEC-Q200 Grade 1, 0805 GCM21BR71H474KA55L MuRata
C11, C12 2 10µF ±10% 50V Ceramic Capacitor X7R 1210 (3225 Metric) 12105C106K4Z2A AVX
C14, C15, C16, C17, C18, C19 6 0.01uF CAP, CERM, 0.01uF, 50V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 CGA2B3X7R1H103K050BB TDK
C21, C22, C23, C24 4 47uF CAP, CERM, 47uF, 10V, +/- 10%, X7R, 1210 GRM32ER71A476KE15L MuRata
C25 1 0.1uF CAP, CERM, 0.1uF, 50V, +/- 10%, X7R, 0603 C0603C104K5RACTU Kemet
C27 1 390pF CAP, CERM, 390pF, 50V, +/- 10%, X7R, 0402 GRM155R71H391KA01D MuRata
C28 1 0.015uF CAP, CERM, 0.015uF, 50V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 CGA2B3X7R1H153K050BB TDK
FID1, FID2, FID3, FID4, FID5, FID6 6 Fiducial mark. There is nothing to buy or mount. N/A N/A
H1, H2, H3, H4 4 Standoff, Hex, 0.5"L #4-40 Nylon 1902C Keystone
H6, H7, H8, H9 4 Screw, Pan Head , 4-40, 3/8", Nylon NY PMS 440 0038 PH B&F Fastener Supply
J1, J3 2 TERM BLOCK 2POS 5mm, TH 1729018 Phoenix Contact
J2 1 Header, 100mil, 9x1, TH 800-10-009-10-001000 Mill-Max
L1 1 680nH Inductor, Shielded, 680 nH, 8.2A, 0.009 ohm, SMD 744383560068 Wurth Elektronik
L2 1 1.5uH Inductor, Shielded, Composite, 1.5uH, 15A, 0.0076 ohm, SMD XAL7030-152MEB Coilcraft
Q1, Q2 2 OptiMOS 6 Power-Transistor IAUC60N04S6L039ATMA1 Infineon
R1 1 0.47 RES, 0.47, 1%, 0.125 W, AEC-Q200 Grade 0, 0402 ERJ-2BQFR47X Panasonic
R2 1 0 RES, 0, 5%, 0.125 W, AEC-Q200 Grade 0, 0805 ERJ-6GEY0R00V Panasonic
R3, R6 2 100k RES, 100 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 RMCF0402FT100K Stackpole Electronics Inc
R4, R5, R7, R19, R20 5 0 RES, 0, 0%, 0.2 W, AEC-Q200 Grade 0, 0402 CRCW04020000Z0EDHP Vishay-Dale
R8 1 3m 3 mOhms ±1% 1W Chip Resistor Wide 0805 (2012 Metric), 0508 Automotive AEC-Q200, Current Sense Metal Foil KRL2012E-M-R003-F-T5 Susumu
R9 1 22.1k RES, 22.1 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 CRCW040222K1FKED Vishay-Dale
R10 1 1.96k RES, 1.96 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 CRCW04021K96FKED Vishay-Dale
R12 1 24.9k RES, 24.9 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 CRCW040224K9FKED Vishay-Dale
R16 1 54.9k RES, 54.9 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 CRCW040254K9FKED Vishay-Dale
SH-J1 1 CONN JUMPER S2 (1 x 2) Position Shunt Connector Black Open Top 0.100" (2.54mm) GoldHORTING .100" GOLD QPC02SXGN-RC Sullins
TP1, TP2, TP3, TP4 4 Test Point, Miniature, SMT 5019 Keystone
U1 1 42V, Automotive , Synchronous, Buck DC/DC Controller and Dual Random Spread Spectrum LM25139QRGTRQ1 Texas Instruments
C2, C3 0 0.01uF CAP, CERM, 0.01uF, 100V, +/- 10%, X7R, AEC-Q200 Grade 1, 0603 CGA3E2X7R2A103K080AA TDK
C13 0 10µF ±10% 50V Ceramic Capacitor X7R 1210 (3225 Metric) 12105C106K4Z2A AVX
C26 0 0.1uF CAP, CERM, 0.1uF, 50V, +/- 10%, X7R, 0603 C0603C104K5RACTU Kemet
C29 0 0.1uF CAP, CERM, 0.1uF, 50V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 CGA2B3X7R1H104K050BB TDK
H5 0 Standard Surface Mount Shield , 26.21 x 26.21mm, Height 5.08mm BMI-S-203-F Laird-Signal Integrity Products
R11 0 49.9 RES, 49.9, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 CRCW040249R9FKED Vishay-Dale
R13 0 100k RES, 100 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 RMCF0402FT100K Stackpole Electronics Inc
R14 0 54.9k RES, 54.9 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 CRCW040254K9FKED Vishay-Dale
R15 0 19.1k RES, 19.1 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 CRCW040219K1FKED Vishay-Dale
R17 0 4.53k RES, 4.53 k, 1%, 0.063 W, 0402 CRCW04024K53FKED Vishay-Dale
R18 0 0 RES, 0, 0%, 0.2 W, AEC-Q200 Grade 0, 0402 CRCW04020000Z0EDHP Vishay-Dale