SLUUB60B May   2015  – August 2021 TPS544B25 , TPS544C25

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Description
    1. 2.1 Typical End-User Applications
    2. 2.2 EVM Features
  4. 3 EVM Electrical Performance Specifications
  5. 4 Schematic
  6. 5 Test Setup
    1. 5.1 Test and Configuration Software
      1. 5.1.1 Description
      2. 5.1.2 Features
    2. 5.2 Test Equipment
    3. 5.3 The PWR-681EVM
    4. 5.4 List of Test Points, Jumpers ans Switch
  7. 6 EVM Configuration Using the Fusion GUI
    1. 6.1 Configuration Procedure
  8. 7 Test Procedure
    1. 7.1 Line/Load Regulation Measurement Procedure
    2. 7.2 Efficiency
    3. 7.3 Bode Plot Measurement Procedure
    4. 7.4 Equipment Shutdown
  9. 8 Performance Data and Typical Characteristic Curves
    1. 8.1  Efficiency
    2. 8.2  Load Regulation
    3. 8.3  Line Regulation
    4. 8.4  Transient Response
    5. 8.5  Output Ripple
    6. 8.6  Control On
    7. 8.7  Control Off
    8. 8.8  Overcurrent Protection
    9. 8.9  Control Loop Bode Plot
    10. 8.10 Thermal Image
  10. 9 Fusion GUI
  11. 10EVM Assembly Drawing and PCB Layout
  12. 11List of Materials
  13. 12Revision History

11 List of Materials

The EVM components list according to the schematic shown in Table 11-1.

Note:

TPS544C25 version used for this example. The TPS544B25 EVM has the same List of Material as the TPS544C25 EVM with the exception of U1.

Table 11-1 PWR681 List of Materials
QTYDESDESCRIPTIONMANUFACTURERPART NUMBER
1PCBPrinted Circuit BoardAnyPWR681
1C1Capacitor, ceramic, 33 pF, 100 V, ±5%, C0G/NP0, 0603AVX06031A330JAT2A
2C2, C10Capacitor, ceramic, 1000 pF, 100 V, ±5%, X7R, 0603AVX06031C102JAT2A
2C3, C4Capacitor, ceramic, 1200 pF, 50 V, ±5%, C0G/NP0, 0603TDKC1608C0G1H122J
1C5Capacitor, ceramic, 330 pF, 50 V, ±1%, C0G/NP0, 0603TDKC1608C0G1H331F080AA
1C6Capacitor, ceramic, 1 µF, 25 V, ±10%, X7R, 0603MuRataGRM188R71E105KA12D
1C7Capacitor, ceramic, 4.7 µF, 10 V, ±10%, X5R, 0603KemetC0603C475K8PACTU
1C8Capacitor, ceramic, 2.2 µF, 6.3 V, ±10%, X6S, 0402MuRataGRM155C80J225KE95D
1C9Capacitor, ceramic, 0.1 µF, 25 V, ±5%, X7R, 0603KemetC0603C104J3RACTU
7C11, C12, C21, C22, C23, C27, C28Multi-layer ceramic capacitor, 100 µF, 6.3 V, X5R, 1210Wurth885012109004
4C13, C14, C15, C16Multi-layer ceramic capacitor, 22 µF, 25 V, X5R, 1210Wurth885012109014
2C17, C18Capacitor, ceramic, 6800 pF, 25 V, ±10%, X7R, 0402MuRataGRM155R71E682KA01D
2C19, C20Capacitor, ceramic, 22 µF, 6.3 V, ±20%, X5R, 0805MuRataGRM21BR60J226ME39L
1C24Capacitor, TA, 100 µF, 25 V, ±10%, 0.1 Ω, SMDAVXTPSV107K025R0100
1D1LED, pink, SMDBivarSMS1105PKD
4H1, H2, H3, H4Bumpon, cylindrical, 0.312 X 0.200, black3MSJ61A1
2H5, H6Screw, 6-32 x 3/8" steelB&F Fastener SupplyPMSSS 632 0038 PH
1J12-pin terminal block, 0.200” spacingWurth691216510002
1J210-pin header, 2x5, 0.100” spacing, shroudedWurth61201021621
2J3, J4Swage threaded standoff, brass, swage mount, THKeystone1546
2JP1, JP22-pin header, 0.100” spacingWurth61300211121
1L1Inductor, shielded drum core, ferrite, 470 nH, 35 A, 0.00032 Ω, SMDWurth Elektronik eiSos744301047
1LBL1Thermal transfer printable labels, 0.650" W x 0.200" H - 10,000 per rollBradyTHT-14-423-10
1Q1Transistor, NPN, 40 V, 0.2 A, SOT-23Fairchild SemiconductorMMBT3904
1Q2MOSFET, N-Channel, 60 V, 0.24 A, SOT-23Vishay-Siliconix2N7002E-T1-E3
1R1Resistor, 100 kΩ, 1%, 0.1 W, 0603STDSTD
1R2Resistor, 10.5 kΩ, 1%, 0.1 W, 0603STDSTD
4R3, R5, R10, R18Resistor, 10.0 kΩ, 1%, 0.1 W, 0603STDSTD
3R6, R13, R15Resistor, 49.9 Ω, 1%, 0.1 W, 0603STDSTD
1R7Resistor, 40.2 kΩ, 1%, 0.1 W, 0603STDSTD
1R8Resistor, 300 Ω, 1%, 0.1 W, 0603STDSTD
2R11, R12Resistor, 51.1 kΩ, 1%, 0.1 W, 0603STDSTD
1R14Resistor, 0 Ω, 5%, 0.1 W, 0603STDSTD
1R16Resistor, 1.0 Ω, 5%, 0.25 W, 1206STDSTD
1R17Resistor, 0 Ω, 5%, 0.1 W, 0603STDSTD
1R20Resistor, 21.5, 1%, 0.1 W, 0603STDSTD
1R21Resistor, 38.3 kΩ, 1%, 0.1 W, 0603STDSTD
1S1Switch, slide, SPDT 100 mA, SMTCopal ElectronicsCAS-120TA
2SH-JP1, SH-JP2Shunt, 100 mil, gold plated, black3M969102-0000-DA
6TP1, TP7, TP8, TP9, TP11, TP12Test point, miniature, white, THKeystone5002
5TP2, TP3, TP4, TP6, TP13Test point, miniature, red, THKeystone5000
2TP5, TP14Test point, miniature, black, THKeystone5001
1TP10Test point, multipurpose, black, THKeystone5011
1U118 V, 30 A PMBUS Synchronous Buck Converters, RVF0040ATexas InstrumentsTPS544C25RVF
1U23-Terminal Adjustable Current Source, 8-pin Narrow SOIC, Pb-FreeTexas InstrumentsLM334SM/NOPB
0C25, C26Capacitor, TA, 330 µF, 6.3 V, ±20%, 0.025 Ω, SMDSanyo6TPE330ML
0FID1, FID2, FID3, FID4, FID5, FID6Fiducial mark. There is nothing to buy or mount.N/AN/A
0R4Resistor, 0 Ω, 5%, 0.1 W, 0603PanasonicERJ-3GEY0R00V
0R9, R19Resistor, 30.1 kΩ, 1%, 0.1 W, 0603Vishay-DaleCRCW060330K1FKEA