SNVU751 October   2020 LP875761-Q1

 

  1. 1Trademarks
  2. 2Overview
  3. 3Quick Setup Guide
    1. 3.1 Installing/Opening the Software
    2.     5
    3. 3.2 Power Supply Setup
    4. 3.3 Notes on Efficiency Measurement Procedure
  4. 4GUI Overview
    1. 4.1 Main Tab
    2. 4.2 Other Tabs and Menus
    3. 4.3 Console
  5. 5Bill of Materials
  6. 6Board Layout
  7. 7LP875761Q1EVM Schematics
  8. 8Revision History

5 Bill of Materials

Table 5-1 lists EVM bill of materials. This is for output configurations listed in Table 2-1. See Section 7 for these configuration specific assembly details.

Note:

The LP875761-Q1 I/O lines are connected to the microcontroller through 0-Ω resistors. These resistors are assembled to match the default I/O configuration of the LP875761-Q1. If LP875761-Q1 ENx/GPIOx or PGOOD pins are configured as push-pull outputs, corresponding 0-Ω resistors (R25, R27, R28, R29) must be removed to prevent possible damage to the microcontroller I/O pins. In open-drain configuration the microcontroller internal pullups are enabled by the GUI and pullup resistors R14 to R20 are not needed.

Table 5-1 Bill of Materials for LP875761Q1EVM
DesignatorDescriptionManufacturerPart NumberQty.
PCBPrinted Circuit BoardAnyBMC0431
C1, C2, C3, C4, C30, C31, C32, C33, C34, C35, C38, C39, C40, C41, C42, C43, C46, C47, C48, C49, C50, C54, C55, C56, C57, C58, C66, C67CAP, CERM, 22 µF, 10 V, ± 10%, X7R, AEC-Q200 Grade 1, 1206MuRataGCM31CR71A226KE0228
C5, C6, C7, C8, C15, C16, C19, C20, C23, C24, C27, C28, C73, C80, C82, C88, C90CAP, CERM, 10 µF, 10 V, ± 10%, X7R, AEC-Q200 Grade 1, 0805MuRataGCM21BR71A106KE22L17
C9, C17, C21, C25, C29, C36, C44, C52, C60, C65, C72, C74, C75, C76, C77, C78, C79, C81, C83, C84, C85, C86, C89CAP, CERM, 0.1 µF, 16 V,± 5%, X7R, AEC-Q200 Grade 1, 0402MuRataGCM155R71C104JA55D23
C10, C11, C12, C13CAP, CERM, 390 pF, 50 V,± 5%, C0G/NP0, AEC-Q200 Grade 1, 0402TDKCGA2B2C0G1H391J050BA4
C14, C18, C22, C26, C37, C45, C53, C61, C95CAP, CERM, 0.01 µF, 50 V, ± 10%, C0G/NP0, AEC-Q200 Grade 1, 0402MuRataGCM155R71H103KA55D9
C63CAP, TA, 220 µF, 10 V, ± 10%, 0.15 Ω, SMDAVXTPSD227K010R01501
C64CAP, CERM, 100 µF, 6.3 V, ± 20%, X5R, 0805MuRataGRM21BR60J107M1
C69, C70, C71, C87CAP, CERM, 15 pF, 100 V,± 5%, C0G/NP0, AEC-Q200 Grade 1, 0603MuRataGCM1885C2A150JA16D4
C91, C92, C93, C94CAP, CERM, 1 µF, 25 V, ± 10%, X7R, AEC-Q200 Grade 1, 0603MuRataGCM188R71E105KA64D4
D1Diode, Zener, 5.6 V, 1 W, SMADiodes Inc.SMAZ5V6-13-F1
D2Diode, Schottky, 30 V, 0.2 A, SOD-323Diodes Inc.BAT42WS-7-F1
H1, H2, H3, H4Bumpon, Hemisphere, 0.375 X 0.235, Black3MSJ61A24
H5CABLE MINI USB 5PIN 1M 2.0 VERSAssman WSWAK672M/2-1-R1
J2Header, 100 mil, 2x2, Tin, SMTMolex15-91-20401
J3, J5, J8, J10, J11, J12, J14Header, 2.54 mm, 2x1, Tin, SMTHarwinM20-87702467
J4, J13Terminal Block, 2x1, 5 mm, Green, THPhoenix Contact19357762
J15Connector, Receptacle, Mini-USB Type B, R/A, Top Mount SMTTE Connectivity1734035-21
J16Header, 100 mil, 3x1, Gold, SMTSamtecTSM-103-01-L-SV1
L1, L2, L3, L4Inductor, Shielded, 330 nH, 5.4 A, 0.017 Ω, AEC-Q200 Grade 1, SMDMuRata TokoDFE252012PD-R33M4
L5, L6, L7, L8Ferrite Bead, 30 Ω at 100 MHz, 4 A, 0805MuRataBLM21PG300SH1D4
L9Inductor, Wirewound, Ferrite, 10 µH, 0.12 A, 0.5 Ω, SMDTaiyo YudenLB2012T100KR1
LBL1Thermal Transfer Printable Labels, 1.250" W x 0.250" H - 10,000 per rollBradyTHT-13-457-101
R1, R2, R3, R4RES, 3.9, 5%, 0.063 W, AEC-Q200 Grade 0, 0402Vishay-DaleCRCW04023R90JNED4
R5, R6, R7, R9, R10, R12, R21, R22, R23, R24, R25, R27, R28, R29RES, 0, 5%, 0.063 W, 0402Yageo AmericaRC0402JR-070RL14
R8RES, 0.01, 1%, 3 W, 2512BournsCRA2512-FZ-R010ELF1
R30RES, 6.80 k, 1%, 0.1 W, 0603Yageo AmericaRC0603FR-076K8L1
R31, R32RES, 39.0, 1%, 0.1 W, 0603Yageo AmericaRC0603FR-0739RL2
R33RES, 68.0 k, 1%, 0.1 W, 0603Yageo AmericaRC0603FR-0768KL1
R34RES, 33.0 k, 1%, 0.1 W, 0603Yageo AmericaRC0603FR-0733KL1
R35RES, 1.00, 1%, 0.1 W, 0603Yageo AmericaRC0603FR-071RL1
R36RES, 470 k, 5%, 0.1 W, AEC-Q200 Grade 0, 0603Vishay-DaleCRCW0603470KJNEA1
R37, R38RES, 1.00 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603Vishay-DaleCRCW06031K00FKEA2
SH-J1, SH-J2, SH-J3, SH-J4, SH-J5Shunt, 100 mil, Gold plated, BlackTE Connectivity881545-25
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14Test Point, Miniature, SMTKeystone501514
U1Four-Phase DC/DC Buck Converter, RNF0026C (VQFN-HR-26)Texas InstrumentsLP875761ARNFRQ11
U2AT91SAM ARM-based Flash MCU, LQFP100AtmelATSAM3U2CA-AU1
U3Dual Linear Regulator with 300 mA and 150 mA Outputs and Power-On-Reset, 10-pin LLP, Pb-FreeTexas InstrumentsLP3996SD-1833/NOPB1
Y1Crystal, 12 MHz, 12pF, SMDAVXCX5032GB12000H0PESZZ1
C51, C59CAP, CERM, 22 µF, 10 V, ± 10%, X7R, AEC-Q200 Grade 1, 1206MuRataGCM31CR71A226KE020
C62, C68CAP, CERM, 0.1 µF, 16 V,± 5%, X7R, AEC-Q200 Grade 1, 0402MuRataGCM155R71C104JA55D0
J1, J6Header, 100 mil, 2x1, Gold, THSamtecTSW-102-07-G-S0
J7Terminal Block, 8x1, 2.54 mm, THPhoenix Contact17257110
J9Receptacle, 2.5 mm, 3x2, Gold, SMTTE Connectivity6651712-10
R11, R13, R26RES, 0, 5%, 0.063 W, 0402Yageo AmericaRC0402JR-070RL0
R14, R15, R16, R17, R18, R19, R20RES, 1.8 k, 5%, 0.1 W, AEC-Q200 Grade 0, 0603Vishay-DaleCRCW06031K80JNEA0