Page 2
Technology, and Symmcom are registered trademarks of Microchip Technology Inc. in other countries. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies.
Customer Support • Document Revision History DOCUMENT LAYOUT This document describes how to use the MIC33M350 Evaluation Board as a development tool to emulate and debug firmware on a target board. The manual layout is as follows: • Chapter 1. “Product Overview”...
MIC33M350 Evaluation Board User’s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Represents Examples Arial font: ® Italic characters Referenced books MPLAB IDE User’s Guide Emphasized text ...is the only compiler... Initial caps...
Preface RECOMMENDED READING This user’s guide describes how to use the MIC33M350 Evaluation Board. Other useful documents are listed below. The following Microchip document is available and recommended as a supplemental reference resource: MIC33M350 Data Sheet – “3A, Pin Strapping Power Module with ®...
9% of regulation and facilitates the interface with an MCU. If set for shutdown (EN = GND), the MIC33M350 draws less than 10 µA. The MIC33M350 is available in a thermally efficient, 24-Lead, 3 x 4.5 x 1.8 mm QFN package, with an operating junction temperature range from -40°C to +125°C.
MIC33M350 Evaluation Board User’s Guide MIC33M350 EVALUATION BOARD DESCRIPTION The MIC33M350 Evaluation Board is used to evaluate and demonstrate Microchip Technology’s MIC33M350 module. The MIC33M350 Evaluation Board demonstrates MIC33M350’s capabilities in a buck converter application, supplied from an external voltage source (2.4V-5.5V) to pin programmed regulated output. Two jumpers are provided to select the desired output voltage from nine preset values.
Chapter 2. Installation and Operation INTRODUCTION The MIC33M350 device has been developed for applications suited for 2.4V to 5.5V input voltage range, low shutdown, quiescent currents and high continuous output current. These characteristics make the MIC33M350 device ideal for single cell Li-Ion battery-powered applications.
Connect the positive voltage terminal of the load to the “VOUT” terminal on the MIC33M350 Evaluation Board and connect the negative or the return side of the load to the ground terminal, “GND_OUT”. Make sure the three provided jumpers are readily available.
Page 13
7. Remove the enable jumper (“J5”) and check the reading on the ampere meter. The measured shutdown current should be less than 10 µA. V-METER LOAD OSCILLOSCOPE A-METER + POWER – SUPPLIY FIGURE 2-2: MIC33M350 Evaluation Board Setup. 2020 Microchip Technology Inc. DS50002990A-page 13...
Page 14
MIC33M350 Evaluation Board User’s Guide 2.3.1.3 ADJUSTING THE OUTPUT VOLTAGE There is no need for a resistor divider network on the MIC33M350 device. The output voltage is simply selected before power-up through the pins, V and V SEL1 SEL2 Table 2-1 shows possible combinations.
MIC33M350 EVALUATION BOARD USER’S GUIDE Appendix A. Schematic and Layouts INTRODUCTION This appendix contains the following schematic and PCB layouts for the MIC33M350 Evaluation Board: • Board – Schematic • Board – Top Silk • Board – Top Copper and Silk •...
0603 0805 SEL1 SEL2 PGND PGND PGND JP3 should be not mounted, only on the package PGND 0603 PGND EP1_PGND Shunt 2.54 mm 1x2 HDR-2.54 Male 1x3 AGND HDR-2.54 Male 1x2 MIC33M350 100k 0603 TP LOOP Red TP LOOP Black...
New York, NY Tel: 46-31-704-60-40 Tel: 631-435-6000 Sweden - Stockholm San Jose, CA Tel: 46-8-5090-4654 Tel: 408-735-9110 UK - Wokingham Tel: 408-436-4270 Tel: 44-118-921-5800 Canada - Toronto Fax: 44-118-921-5820 Tel: 905-695-1980 Fax: 905-695-2078 2020 Microchip Technology Inc. DS50000000A-page 24 02/28/20...
Need help?
Do you have a question about the MIC33M350 and is the answer not in the manual?
Questions and answers