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Infineon Technologies Cypress MB39C503-EVBSK-01 Operation Manual

High efficiency single output step down dc/dc controller evaluation board
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Please note that Cypress is an Infineon Technologies Company.
The document following this cover page is marked as "Cypress" document as this is the
company that originally developed the product. Please note that Infineon will continue
to offer the product to new and existing customers as part of the Infineon product
portfolio.
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The fact that Infineon offers the following product as part of the Infineon product
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when appropriate, and any changes will be set out on the document history page.
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Summary of Contents for Infineon Technologies Cypress MB39C503-EVBSK-01

  • Page 1 Please note that Cypress is an Infineon Technologies Company. The document following this cover page is marked as “Cypress” document as this is the company that originally developed the product. Please note that Infineon will continue to offer the product to new and existing customers as part of the Infineon product portfolio.
  • Page 2 MB39C503-EVBSK-01 High Efficiency Single Output Step Down DC/DC Controller Evaluation Board Operation Manual Doc. No. 002-08718 Rev. *B Cypress Semiconductor 198 Champion Court San Jose, CA 95134-1709 Phone (USA): 800.858.1810 Phone (Intnl): +1 408.943.2600 www.cypress.com...
  • Page 3 Copyrights © Cypress Semiconductor Corporation, 2014-2019. This document is the property of Cypress Semiconductor Corporation and its subsidiaries (“Cypress”). This document, including any software or firmware included or referenced in this document (“Software”), is owned by Cypress under the intellectual property laws and treaties of the United States and other countries worldwide.
  • Page 4 Preface This manual explains how to use the evaluation board. Be sure to read this manual before using the product. For this product, consult with sales representatives or support representatives. Handling and use Handling and use of this product and notes regarding its safe use are described in the manuals. Follow the instructions in the manuals to use this product.
  • Page 5 Preface To prevent electrostatic breakdown, do not let your finger or other object come into contact with the metal parts of any of the connectors. Before handling the product, touch a metal Damage object (such as a door knob) to discharge any static electricity from your body. When turning the power on or off, follow the relevant procedure as described in this document.

  • Page 6: Table Of Contents

    Contents Description ..................................6 Evaluation Board Specification ............................ 7 Pin Description ................................8 Setup and Checkup ............................... 9 Component Layout ..............................10 Wiring Layout ................................11 Circuit Diagram ................................12 Parts List ..................................13 Reference Data ................................15 10. Initial Settings ................................21 11.

  • Page 7: Description

    1. Description MB39C503 is a single output step down DC/DC controller using external FETs. It achieves the high efficiency with “Enhanced Low Power Mode (LPM) Operation” in light load. In Enhanced LPM, this controller operates that the quiescent current is reduced only 30μA and the switching frequency is fallen by extending on time. These operations enable to improve the efficiency in light load.

  • Page 8: Evaluation Board Specification

    Evaluation Board Specification Table 2-1 Evaluation Board Specification Component Symbol Condition Unit Input Voltage Output Voltage VOUT Output Current IOUT SLP_N=H 10.73 Switching Frequency MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 9: Pin Description

    Pin Description Table 3-1 Pin Description Component Input or Output Description Input Power supply terminal of DC/DC system. VOUT Output Output of DC/DC system. Input Power supply terminal PWM controller and internal drivers. Enable input for PWM Controller. Input When turning on, apply greater than 0.65V and less than 5.5V. When turning off, apply less than 0.25V.

  • Page 10: Setup And Checkup

    Setup and Checkup  Supply the DC/DC input power of to the terminal between VIN to PGND.  Supply the PWM controller input voltage of 5.0V to VDD terminal.  Connect the VOUT terminal to required loading device or measuring instrument. In this time, connect the EN terminal to “L”...

  • Page 11: Component Layout

    Component Layout Figure 5-1 Component Layout Top View MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 12: Wiring Layout

    Wiring Layout Figure 6-1 Wiring Layout Top Side (Layer 1) Inside (Layer 2) Inside (Layer 3) Bottom Side (Layer 4) MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 13: Circuit Diagram

    Circuit Diagram Figure 7-1 Circuit Diagram VOUT PatternShort VOUTs LDO5 PatternShort VINs PWRGD PWRGD VIN1 VIN2 VOUT5 ALERT_N_VOUT ALERT_N VIN3 VOUT4 DRVH VIN4 VOUT3 SLP_N SLP_N VOUT2 VOUT1 DRVL PGND1 ILIM PGND2 AGND PGND PGND3 PGND4 PGND5 PGNDs MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 14: Parts List

    Parts List Table 8-1 Parts List Component Item Specification Vender Package Parts Name Remark Cypress QFN-16 MB39C503 Controller VDS=30V, ID=11A RON=8.8mΩ, QG=6.7nC High/Low Nch FET Fairchild Power33 FDMC7208S VDS=30V, ID=13.5A Side FET RON=5.3mΩ, QG=14nC No mount Inductor 0.68μH(14A) ALPS 7.4 x 6.5mm GLMCR6803A C1-1 Capacitor...
  • Page 15 Parts List Component Item Specification Vender Package Parts Name Remark R21 * No mount * R27 * Resistor * 220kΩ * KOA * 1005 * RK73B1ETTP224J * EN * R28 * No mount * R29 * Resistor * 330kΩ * KOA * 1005 * RK73B1ETTP334J *...

  • Page 16: Reference Data

    Reference Data Figure 9-1 Efficiency vs Output Current, VOUT ;3.3V-Setting 7.4V Normal 12.0V Normal 20.0V Normal 7.4V LPM 12.0V LPM 20.0V LPM 100% 0.0001 0.001 0.01 Output Current / A MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...
  • Page 17 Reference Data Figure 9-2 Load regulation Output Voltage vs Output Current, OUT ;3.3V-Setting 7.4V Normal 12.0V Normal 20.0V Normal 7.4V LPM 12.0V LPM 20.0V LPM 3.333 3.322 3.311 3.300 3.289 3.278 3.267 0.0001 0.001 0.01 Output Current / A Figure 9-3 Start-up (EN=0V to 5V) VIN=7.4V, VOUT=3.3V, IOUT=0.05A, SLP_N=H MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc.
  • Page 18 Reference Data Figure 9-4 Shut-down (EN=5V=>0V)VIN=7.4V, VOUT=3.3V,IOUT=0.05A , SLP_N=H MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...
  • Page 19 Reference Data Figure 9-5 Load step response (VIN=7.4V,VOUT=3.3V) IOUT=0.05A to 9.72A, SLP_N=H Figure 9-6 Load step response (VIN=7.4V,VOUT=3.3V) IOUT=9.72A to 0.05A, SLP_N=H MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...
  • Page 20 Reference Data Figure 9-7 Switching waveform (VIN=7.4V,Iout=10.8A) , SLP_N=H Figure 9-8 Switching waveform (VIN=7.4V,Iout=0.05A) , SLP_N=H MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...
  • Page 21 Reference Data Figure 9-9 Switching waveform (VIN=7.4V,Iout=0.3A), LPM at SLP_N=L Figure 9-10 Switching waveform (VIN=7.4V,Iout=0.05A) , LPM at SLP_N=L MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 22: Initial Settings

    10. Initial Settings  Output Voltage  Current Limit at VIN=7.4V  Over Current Alerting Threshold Level at VIN=7.4V MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 23: Evaluation Board Picture

    11. Evaluation board picture Figure 11-1 Evaluation board Picture (top) MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...
  • Page 24 Evaluation board picture Figure 11-2 Evaluation board Picture (back) MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 25: Ordering Information

    12. Ordering Information Table 12-1 Ordering Information Part number EVB revision Note MB39C503-EVBSK-01 Rev 1.0 MB39C503-EVBSK-01 Evaluation Board Operation Manual, Doc. No. 002-08718 Rev. *B...

  • Page 26: Revision History

    Revision History Document Revision History Document Title: MB39C503-EVBSK-01 High Efficiency Single Output Step Down DC/DC Controller Evaluation Board Operation Manual Document Number: 002-08718 Revision ECN Number Issue Date Description of Change 11/19/2014 Initial release. 5248029 04/29/2016 Updated to Cypress template. 6744382 12/04/2019 Updated to new template.

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