SLVU431A January   2011  – December 2021

 

  1.   Trademarks
  2. 1 Introduction
  3.   Description
    1. 2.1 Typical Applications
    2. 2.2 Features
  4. 2 Electrical Performance Specifications
  5. 3 Schematic
  6. 4 Test Setup
    1. 4.1 Test Equipment
    2. 4.2 Recommended Test Setup
  7. 5 Configurations
    1. 5.1 Switching Frequency Selection
    2. 5.2 Soft-Start Selection
    3. 5.3 Mode Selection
    4. 5.4 Enable Selection
  8. 6 Test Procedure
    1. 6.1 Line/Load Regulation and Efficiency Measurement Procedure
    2. 6.2 Control Loop Gain and Phase Measurement Procedure
    3. 6.3 List of Test Points
    4. 6.4 Equipment Shutdown
  9. 7 Performance Data and Typical Characteristic Curves
    1. 7.1 Efficiency
    2. 7.2 Load Regulation
    3. 7.3 Output Transient
    4. 7.4 Output Ripple
    5. 7.5 Switching Node
    6. 7.6 Enable Turn-On/Turn-Off
    7. 7.7 Output 1.1-V Prebias Turn-On
    8. 7.8 Bode Plot
    9. 7.9 Thermal Image
  10. 8 EVM Assembly Drawing and PCB Layout
  11. 9 Bill of Materials
  12. 10Revision History

9 Bill of Materials

Table 9-1 The EVM Bill of Materials According to Schematic Shown in Figure 3-1
QtyRefDesDescriptionMFRPart Number
1C1Capacitor, Ceramic, 4.7 µF, 16 V, X5R, 20%, 0805STDSTD
5C12–C16Capacitor, Ceramic, 100 µF, 6.3 V, X5R, 20%, 1210MurataGRM32ER60J107ME20L
1C19Capacitor, Ceramic, 4700 pF, 50 V, X7R, 20%, 0603STDSTD
2C2, C20Capacitor, Ceramic, 1000 pF, 25 V, X7R, 10%, 0603STDSTD
2C3, C10Capacitor, Ceramic, 0.1 µF, 50 V, X7R, 10%, 0603STDSTD
1C5Capacitor, Ceramic, 0.027 µF, 50 V, X7R, 10%, 0603STDSTD
1C4Capacitor, Ceramic, 1 µF, 16 V, X7R, 10%, 0603STDSTD
4C6–C9Capacitor, Ceramic, 22 µF, 16 V, X5R, 20%, 1206MurataGRM31CR61C226ME15L
1L1Inductor, SMT, 0.44 µH, 30 A, 0.0032 Ω, 0.530” × 0.510”Pulse or
E&E Magnetic		PA0513-441NLT or
831-02990F
1Q1MOSFET, Dual N-chan, Power Block, 25 V, 40 A, QFN-8 PowerTICSD86350Q5D
3R1, R3, R22Resistor, Chip, 100 k, 1/16W, 1%, 0603STDSTD
1R15Resistor, Chip, 187 k, 1/16W, 1%, 0603STDSTD
1R16Resistor, Chip, 619 k, 1/16W, 1%, 0603STDSTD
1R18Resistor, Chip, 866 k, 1/16W, 1%, 0603STDSTD
1R19Resistor, Chip, 309 k, 1/16W, 1%, 0603STDSTD
2R2, R23Resistor, Chip, 200 k, 1/16W, 1%, 0603STDSTD
1R20Resistor, Chip, 124 k, 1/16W, 1%, 0603STDSTD
1R21Resistor, Chip, 39.2 k, 1/16W, 1%, 0603STDSTD
1R24Resistor, Chip, 475 k, 1/16W, 1%, 0603STDSTD
1R26Resistor, Chip, 1, 1/10W, 5%, 0805STDSTD
1R4Resistor, Chip, 1.00 k, 1/16W, 1%, 0603STDSTD
1R5Resistor, Chip, 35.7 k, 1/16W, 1%, 0603STDSTD
6R6, R11–R13, R25, R27Resistor, Chip, 0, 1/16W, 5%, 0603STDSTD
1R10Resistor, Chip, 5.11, 1/16W, 1%, 0603STDSTD
2R7, R14Resistor, Chip, 10.0 k, 1/16W, 1%, 0603STDSTD
1R8Resistor, Chip, 8.25 k, 1/16W, 1%, 0603STDSTD
1R9Resistor, Chip, 10, 1/16W, 1%, 0603STDSTD
1U1IC, Single Synchronous Step-Down Controller, QFN-16TITPS53219RGT