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Quad MxL7218
140A Multiphase
EVK User Manual
MaxLinear Confidential
• www.maxlinear.com •
026UMR00
TBD/18
026UMR00
i

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Summary of Contents for MaxLinear MxL7218-EVK-2

  • Page 1 Quad MxL7218 140A Multiphase EVK User Manual MaxLinear Confidential • www.maxlinear.com • 026UMR00 TBD/18 026UMR00...
  • Page 2 Quad MxL7218 140A Multiphase EVK User Manual Revision History Revision History Document No. Release Date Change Description 026UMR00 12/7/20 Initial Preliminary Release 12/7/20 026UMR00...
  • Page 3: Table Of Contents

    Quad MxL7218 140A Multiphase EVK User Manual Table of Contents Table of Contents Introduction................................. 1 Quick EVK Set Up and Start Up ............................1 Factory Settings ..............................1 Quick Start Up ..............................1 Reference Documentation ..........................3 Ordering Information............................3 Evaluation Board Overview ..........................4 Configuration and I/O Interfaces ........................
  • Page 4 Quad MxL7218 140A Multiphase EVK User Manual List of Figures List of Figures Figure 1: Monitoring V and V ............................2 Figure 2: Top View of MxL7218 140A Multiphase EVK......................3 Figure 3: Quad MxL7218 140A Multiphase EVK Block Diagram ...................4 Figure 4: Load Transient Circuit .............................7 Figure 5: Measured Efficiency (V = 12V) ..........................8 Figure 6: Load Transient Response, V...
  • Page 5 Quad MxL7218 140A Multiphase EVK User Manual List of Tables List of Tables Table 1: Evaluation Board Ordering Part Number ....................3 Table 2: Factory Settings............................6 Table 3: JP1 Options ............................6 Table 4: JP2 Options ............................6 Table 5: JP4 - JP8 Options........................... 6 Table 6: EVK Bill of Materials ..........................
  • Page 6: Introduction

    Quad MxL7218 140A Multiphase EVK User Manual Introduction Introduction The Quad MxL7218 140A Multiphase Evaluation Board provides a platform to evaluate the features and performance of four MxL7218 Power Modules connected in parallel to supply up to a 140A load. Each MxL7218 is a dual 18A Power Module which are optimized for powering Telecom, Networking and Industrial equipment.
  • Page 7: Figure 1: Monitoring Vin

    Quad MxL7218 140A Multiphase EVK User Manual Quick EVK Set Up and Start Up Load Figure 1: Monitoring V and V 12/7/20 026UMR00...
  • Page 8: Reference Documentation

    The schematics are also available on the MxL7218 product page. Ordering Information Table 1: Evaluation Board Ordering Part Number Power Module Evaluation Board Description MxL7218-ABA-T MxL7218-EVK-2 Quad MxL7218 BGA Power Module Multiphase EVK 1. Refer to www.maxlinear.com/MxL7218 for most up-to-date Ordering Information. 12/7/20 026UMR00...
  • Page 9: Evaluation Board Overview

    Quad MxL7218 140A Multiphase EVK User Manual Evaluation Board Overview Evaluation Board Overview The block diagram shown in Figure 3 illustrates the 7 MxL7218 channels connected in parallel with the 8th channel as the master and the connection points for V , and V .
  • Page 10: Configuration And I/O Interfaces

    Quad MxL7218 140A Multiphase EVK User Manual Configuration and I/O Interfaces Configuration and I/O Interfaces EXT_CLK, Jumper JP1 Jumper J1 provides an option to connect and synchronize to an external clock or use an internal clock (default). See EXT_CLK, Jumper JP1.
  • Page 11: Set-Up Options

    Quad MxL7218 140A Multiphase EVK User Manual Set-Up Options Set-Up Options Jumpers are factory installed per Table 2 to configure the EVK for operation. Jumper and testing options are described in the next sections. Refer to the product datasheet for additional information. Table 2: Factory Settings Jumper...
  • Page 12: Test Interfaces

    Quad MxL7218 140A Multiphase EVK User Manual Test Interfaces Test Interfaces Load Transient Circuit A load transient circuit is provided to allow optional testing of load transients. The EXT PULSE (E33) clock input is used to drive the transient signal. The load step generated by the FETs (Q1 and Q2) is very fast; the step slew rate is >40A/µs for a 50A transient load test case.
  • Page 13: Performance

    Quad MxL7218 140A Multiphase EVK User Manual Performance Performance Efficiency = 1.8V = 1.5V = 1.2V = 1.0V = 0.9V Load Current (A) Figure 5: Measured Efficiency (V = 12V, f = 400kHz) Load Transient Response Figure 6: Load Transient Response, V = 12V, V = 1V, 0A to 35A Load Step, f = 400kHz...
  • Page 14: Output Ripple

    Quad MxL7218 140A Multiphase EVK User Manual Output Ripple Output Ripple 2. 140A load on J7 with standard demo circuit default setup. Figure 7: Measured Output Voltage Ripple (V = 12V, V = 1V, Load = 140A, f = 400kHz) Thermal 3.
  • Page 15: Quad Mxl7218 Evk Schematic

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK Schematic Quad MxL7218 EVK Schematic Figure 9: EVK Schematic 12/7/20 026UMR00...
  • Page 16: Figure 10: Evk Schematic, Continued

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK Schematic Figure 10: EVK Schematic, Continued 12/7/20 026UMR00...
  • Page 17: Figure 11: Evk Schematic, Continued

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK Schematic Figure 11: EVK Schematic, Continued 12/7/20 026UMR00...
  • Page 18: Figure 12: Evk Schematic, Continued

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK Schematic Figure 12: EVK Schematic, Continued 12/7/20 026UMR00...
  • Page 19: Quad Mxl7218 Evk Pcb Layers

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK PCB Layers Quad MxL7218 EVK PCB Layers Figure 13: EVK PCB Silkscreen Top Figure 14: EVK PCB Layer 1 12/7/20 026UMR00...
  • Page 20: Figure 15: Evk Pcb Layer 2

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK PCB Layers Figure 15: EVK PCB Layer 2 Figure 16: EVK PCB Layer 3 12/7/20 026UMR00...
  • Page 21: Figure 17: Evk Pcb Layer 4

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK PCB Layers Figure 17: EVK PCB Layer 4 Figure 18: EVK PCB Layer 5 12/7/20 026UMR00...
  • Page 22: Figure 19: Evk Pcb Layer 6

    Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK PCB Layers Figure 19: EVK PCB Layer 6 Figure 20: EVK PCB Silkscreen Bottom 12/7/20 026UMR00...
  • Page 23: Quad Mxl7218 Evk Bill Of Materials

    Quad MxL7218 EVK Bill of Materials Table 6: EVK Bill of Materials Reference Manufacturer / Package Item Description Designator Part Number Size MXL7218 Evaluation Board MAXLINEAR MAXLINEAR U1, U2, U3, U4 LGA-144 15X15X4.41 MXL7218 VISHAY Q1, Q2 MOSFET, N-CH, 40V, 14A TO-252 SUD50N04 Nichicon...
  • Page 24 Quad MxL7218 140A Multiphase EVK User Manual Quad MxL7218 EVK Bill of Materials Table 6: EVK Bill of Materials (Continued) Reference Manufacturer / Package Item Description Designator Part Number Size PANASONIC Resistor 60.4K Ohm, 1/10W,1%,SMD 0603 ERJ-3EKF6041V VISHAY R22 - R24, R26 RES 0 OHM JUMPER 2010 2010 WSL201000000ZEA9...
  • Page 25 Products are not authorized for use in such applications unless MaxLinear, Inc. receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of MaxLinear, Inc.

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