SLVUCE3 april   2023 TPS54KB20

 

  1.    TPS54KB20EVM 25-A, Regulator Evaluation Module
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Background
    2. 1.2 Before You Begin
    3. 1.3 Performance Characteristics Summary
  4. 2Configurations and Modifications
    1. 2.1 Output Voltage
    2. 2.2 Frequency and Operation Mode Setting (MSEL Pin)
  5. 3Test Setup and Results
    1. 3.1 Input/Output Connections
    2. 3.2 Efficiency
    3. 3.3 Output Voltage Regulation
    4. 3.4 Load Transient and Loop Response
    5. 3.5 Output Voltage Ripple
    6. 3.6 Start-up and Shutdown with EN
    7. 3.7 Thermal Performance
  6. 4Board Layout
    1. 4.1 Layout
  7. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials

5.2 Bill of Materials

Table 5-1 presents the bill of materials for the TPS54KB20EVM.

Table 5-1 TPS54KB20EVM Bill of Materials
DESIGNATOR QTY VALUE DESCRIPTION PACKAGE REFERENCE PART NUMBER MANUFACTURER
!PCB1 1 Printed Circuit Board BSR225 Any
C1, C32 2 330 µF Cap Aluminum Polymer 330 uF 25 V 20% Solder Cylindrical 19 m Ohm 2325 mA 2000 hr 125°C T/R SMT_CAP_8MM3_8MM3 A768KS337M1ELAE019 KEMET
C2, C3, C17, C18, C19, C33, C34, C35 8 10uF CAP, CERM, 10 µF, 25 V,+/- 10%, X7R, AEC-Q200 Grade 1, 1206 1206 CGA5L1X7R1E106K160AE TDK
C4, C5, C20, C36 4 1uF CAP, CERM, 1 µF, 25 V,+/- 20%, X5R, 0402 402 GRM155R61E105MA12D MuRata
C6, C7, C12, C22, C38, C48 6 0.1uF CAP, CERM, 0.1 uF, 35 V, +/- 10%, X5R, 0402 402 GMK105BJ104KV-F Taiyo Yuden
C8, C9, C10, C11 4 47uF CAP, CERM, 47 µF, 10 V,+/- 20%, X5R, 0805 805 GRM21BR61A476ME15L MuRata
C14, C50 2 1uF CAP, CERM, 1 uF, 16 V, +/- 10%, X6S, 0402 402 C1005X6S1C105K050BC TDK
C15 1 0.022uF CAP, CERM, 0.022 uF, 50 V, +/- 10%, C0G/NP0, 0402 402 GCM155R71H223KA55D MuRata
C24, C25, C26, C27, C40, C41, C42 7 22uF CAP, CERM, 22 µF, 10 V,+/- 20%, X6S, 0805 805 GRM21BC81A226ME44 MuRata
C30, C46 2 220 µF Molded Tantalum Polymer Capacitor 220uF 20% 6.3V life 1000Hours SMD 2917 2917 6TCF220M5L Panasonic
C52 1 0.039uF CAP, CERM, 0.039 uF, 10 V, +/- 10%, X7R, 0402 402 GRM155R71A393KA01D MuRata
FID1, FID2, FID3, FID4 4 Fiducial mark. There is nothing to buy or mount. N/A N/A N/A
H1, H2, H3, H4 4 Bumpon, Hemisphere, 0.44 X 0.20, Clear Transparent Bumpon SJ-5303 (CLEAR) 3M
J1, J2, J3, J4 4 Terminal Block, 60 A, 10.16mm Pitch, 2-Pos, TH 21.8x30x19 mm 399100102 Molex
J5, J6, J7 3 Header, 100mil, 3x1, Gold, TH 3x1 Header TSW-103-07-G-S Samtec
J8 1 Header, 2.54 mm, 8x2, Tin, Vertical, TH Header, 2.54 mm, 8x2, TH PEC08DAAN Sullins Connector Solutions
J9 1 Card Edge Socket, 0.8mm, 10x2, SMT Card Edge Socket, 0.8mm, 10x2, SMT HSEC8-110-01-S-DV-A Samtec
J_PGND1, J_PGND2 2 1 mm Uninsulated Shorting Plug, 10.16mm spacing, TH Shorting Plug, 10.16mm spacing, TH D3082-05 Harwin
L1 1 0.22uH 220 nH Shielded Inductor 29 A 1.3mOhm Max Nonstandard SMT_IND_6MM51_6MM71 XGL6060-221MEC Coilcraft
L2 1 0.47uH SMT High Current Cube Inductor 0.47 µH ±20% 26 A 1.85 mΩ SMT2_12MM1_11MM4 7443320047 Wurth Electronics
LBL1 1 Thermal Transfer Printable Labels, 0.650" W x 0.200" H - 10,000 per roll PCB Label 0.650 x 0.200 inch THT-14-423-10 Brady
R1 1 453k RES, 453 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW0402453KFKED Vishay-Dale
R2 1 26.7k RES, 26.7 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW040226K7FKED Vishay-Dale
R3, R13 2 10 RES, 10.0, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW040210R0FKED Vishay-Dale
R4, R6, R14 3 10.0k RES, 10.0 k, 1%, 0.1 W, 0402 402 ERJ-2RKF1002X Panasonic
R5, R16 2 100k RES, 100 k, 1%, 0.1 W, 0402 402 ERJ-2RKF1003X Panasonic
R7, R17 2 4.32k RES, 4.32 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW04024K32FKED Vishay-Dale
R8 1 174k RES, 174 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW0402174KFKED Vishay-Dale
R10, R34 2 49.9 RES, 49.9, 1%, 0.1 W, 0603 603 RC0603FR-0749R9L Yageo
R11 1 200k RES, 200 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW0402200KFKED Vishay-Dale
R12 1 8.06k RES, 8.06 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW04028K06FKED Vishay-Dale
R15 1 3.01k RES, 3.01 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402 402 CRCW04023K01FKED Vishay-Dale
R19 1 0 RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 603 CRCW06030000Z0EA Vishay-Dale
R20 1 4.99k RES, 4.99 k, 0.1%, 0.1 W, 0603 603 RT0603BRD074K99L Yageo America
R21 1 7.50k RES, 7.50 k, 1%, 0.1 W, 0603 603 ERJ-3EKF7501V Panasonic
R22 1 10.5k RES, 10.5 k, 0.1%, 0.1 W, 0603 603 RG1608P-1052-B-T5 Susumu Co Ltd
R23 1 54.9k RES, 54.9 k, 0.1%, 0.1 W, 0603 603 RT0603BRD0754K9L Yageo America
R24 1 63.4k RES, 63.4 k, 0.1%, 0.1 W, 0603 603 RT0603BRD0763K4L Yageo America
R25 1 73.2k RES, 73.2 k, 0.1%, 0.1 W, 0603 603 RT0603BRD0773K2L Yageo America
R26 1 84.5k RES, 84.5 k, 0.1%, 0.1 W, 0603 603 RT0603BRD0784K5L Yageo America
R29 1 453 RES, 453, 1%, 0.1 W, 0603 603 RC0603FR-07453RL Yageo
R33 1 66.5k RES, 66.5 k, 1%, 0.1 W, 0603 603 RC0603FR-0766K5L Yageo
SH-J1, SH-J2, SH-J3, SH-J4 4 1x2 Shunt, 100mil, Gold plated, Black Shunt SNT-100-BK-G Samtec
TP1, TP2, TP3, TP5, TP6, TP7, TP8, TP12, TP13, TP14, TP15, TP16, TP18, TP19, TP20, TP21, TP22, TP23 18 Test Point, Multipurpose, Red, TH Red Multipurpose Testpoint 5010 Keystone
TP4, TP9, TP10, TP17, TP24, TP25 6 Test Point, Multipurpose, Black, TH Black Multipurpose Testpoint 5011 Keystone Electronics
TP11, TP28, TP29 3 Connector, Receptacle, 50 ohm, TH SMB Connector SMBR004D00 JAE Electronics
U1, U2 2 4-V to 16-V Input, 25-A, Remote Sense, D-CAP4 Synchronous Buck Converter WQFN-FCRLF16 TPS54KB20RZRR Texas Instruments
C13 0 0.01uF CAP, CERM, 0.01 uF, 16 V, +/- 10%, X5R, 0402 402 GRM155R61C103KA01D MuRata
C16, C53 0 560 pF CAP, CERM, 560 pF, 100 V, +/- 10%, X7R, 0603 603 GRM188R72A561KA01D MuRata
C21, C37 0 1uF CAP, CERM, 1 µF, 25 V,+/- 20%, X5R, 0402 402 GRM155R61E105MA12D MuRata
C23, C39 0 0.1uF CAP, CERM, 0.1 uF, 35 V, +/- 10%, X5R, 0402 402 GMK105BJ104KV-F Taiyo Yuden
C28, C29, C43, C44, C45 0 100uF CAP, CERM, 100 µF, 6.3 V,+/- 20%, X6T, 1206 1206 GRM31CD80J107ME39L MuRata
C31, C47 0 220 µF Molded Tantalum Polymer Capacitor 220uF 20% 6.3V life 1000Hours SMD 2917 2917 6TCF220M5L Panasonic
C49 0 0.01uF CAP, CERM, 0.01 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0402 402 CGA2B3X7R1H103K050BB TDK
C51 0 15 pF CAP, CERM, 15 pF, 50 V,+/- 5%, C0G/NP0, AEC-Q200 Grade 1, 0402 402 CGA2B2C0G1H150J050BA TDK
C54 0 0.1uF CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0402 402 C1005X7R1H104K050BB TDK
D1 0 Green LED, Green, SMD LED_0603 150060GS75000 Wurth Elektronik
J10 0 Header(Shrouded), 2.54mm, 5x2, Gold, TH Header, 2.54mm, 5x2, TH AWHW-10G-0202-T Assman WSW
R9, R18 0 5.1 RES, 5.10, 1%, 0.5 W, 1210 1210 RC1210FR-075R1L Yageo
R27 0 0 RES, 0, 5%, 0.1 W, 0603 603 RC0603JR-070RL Yageo
R28, R32 0 0 RES, 0, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 603 CRCW06030000Z0EA Vishay-Dale
R30 0 2.2k RES, 2.2 k, 5%, 0.1 W, 0603 603 RC0603JR-072K2L Yageo
R31 0 49.9 RES, 49.9, 1%, 0.1 W, 0603 603 RC0603FR-0749R9L Yageo
R35, R36 0 10.0Meg RES, 10.0 M, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 603 CRCW060310M0FKEA Vishay-Dale
TP26, TP27 0 Test Point, Multipurpose, Red, TH Red Multipurpose Testpoint 5010 Keystone
U3 0 250 MHz, Rail-to-Rail I/O, CMOS Single Operational Amplifier, 2.5 to 5.5 V, -40 to 125 degC, 5-pin SOT23 (DBV5), Green (RoHS & no Sb/Br) DBV0005A OPA354AIDBVR Texas Instruments