MGK1R820 MURATA1 | Alldatasheet
Document overview
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Technical content
MonoBK™ MYMGK1R820 series Document Category : User guide 20A DCDC converter module http://www.murata.com/products/power Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 1 of 15 ABSTRACT This user’s guide provides information on the correct usage of the test board and an explanation of the test points and the parts on the board. The test board features of the MYMGK1R820 series are configured for fixed frequency synchronous operation. The test board operates over the entire input voltage range of the MYMGK1R820 series. The minimum input and the output capacitors are included on the board. Table of Contents MYMGK1R820 series EVM Bill of Materials (BOM) .... 13
MonoBK™ MYMGK1R820 series Document Category : User guide 20A DCDC converter module http://www.murata.com/products/power Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 2 of 15
Description
This EVM features the MYMGK1R820 series fixed frequency synchronous buck converter switching topology with 4.5 or 8V to 8 or 15V input voltage range. The output voltage is fixed 1.0V but it is possible to change output voltage by external resistors. The full output current rating of the device can be supplied by the EVM. Input and output capacitors are mounted on the board to accommodate the entire range of input and output voltages. Monitoring test points are provided to allow measurement of voltage, efficiency, power dissipation and load regulation. The control switch and component footprints are provided for use of the ON/OFF, PWGOOD(Power good signal output), and Remote Sensing(+) features of the module. The EVM uses a recommended PCB layout that minimizes output ripple and noise. Detailed application information for MYMGK1R820 series is available in the datasheet. Figure 1. Evaluation Board
Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Table 1. Performance Summary brought back into regulation.
Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Table 2. Terminal Functions cause damage the PCB traces. be used as voltage monitoring points where voltmeters can be connected to measure VIN and VOUT.
Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Figure 3. EVM Connection
- Set the power supply current limit to at least 15A(*FRSR) or 8A(*ERSR). Connect the power supply to VIN
power (+) and VIN power (-).
- Connect one electronic load with more than 20A capacity between VOUT power (+) and VOUT power (-).
- Set ON/OFF switch off, then turn the load switch off. (Recommend)
- Set Input voltage to 5V(*FRSR) or 12V(*ERSR) and turn it on.
- Set ON/OFF switch on, then turn the load switch on. (Recommend)
- If you need to change the output voltage, please change the R11 and R12 according to the DATA SHEET.
Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Table 3. MYMGK1R820 series EVM Bill of Materials Figure 16. MYMGK1R820 series EVM schematic
Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Figure 17. Evaluation Board Layout (Top) Size : mm
MonoBK™ MYMGK1R820 series Document Category : User guide 20A DCDC converter module http://www.murata.com/products/power Copyright ©20 22 Murata Manufacturing Co., Ltd . All rights reserved. Specifications are subject to change without notice. Document Number: D90DH - 00172 / Export Control Code: X0863 MYMGK1R820 series Rev A01 (Jun-2022) Page 15 of 15 Notices CAUTION 1. EVMs are not finished products. Murata delivers EVM for use in a research and development evaluation purpose only. 2. Please make sure that your product has been evaluated and confirmed to your specifications when our product is used in your product. 3. All the items and parameters in this approval sheet for product specification are based on the premise that our product is used for the purpose, under the condition and in the environment agreed upon between you and us. You are requested not to use our product in a manner deviating from such agreement. 4. If you have any concerns about materials other than those listed in the RoHS directive, please contact us. 5. Be sure to provide an appropriate fail-safe functionality in your product to prevent secondary damage that could be caused by the abnormal function or failure of our product. 6. Do not allow our product to be exposed to excess moisture under any circumstances. Contact form https://www.murata.com/contactform?Product=Power%20Device Disclaimers The information in this document is believed to be reliable. However, Murata assumes no liability for the use of this information. The use shall be entirely at the user’s own risk. No patent rights or licenses to any circuits described in this document are implied or granted to any third party. Murata’s products are not designed or intended for use in devices or systems intended for a surgical implant, or in other applications intended to support or sustain life, or in any application in which the failure of the Murata product could create a situation in which personal injury or death might occur. Murata assumes no liability for damages, including consequential or incidental damages, arising out of the use of its products in such applications. Copyright and Trademark ©2022 Murata Manufacturing Co., Ltd. All rights reserved. This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: https://power.murata.com/en/requirements Murata Manufacturing Co., Ltd makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Spec and cautions are subject to change without notice. © 2022 Murata Manufacturing Co., Ltd