MAX38904BEVK#TDFN

Click here for production status of specific part numbers. Evaluates: MAX38904B MAX38904B TDFN Evaluation Kit General Description Quick Start The MAX38904B TDFN evaluation kit (EV kit) evaluates Required Equipment the MAX38904B in a TDFN package. The MAX38904B MAX38904B TDFN EV kit is a low noise linear regulator. The EV kit operates over 5.5V, 5A DC power supply an input range of 1.7V to 5.5V and provides a resistor configurable output voltage range from 0.6V to 5.0V. The Electronic load capable of 2A EV kit can deliver up to 2A of current. Digital voltmeter (DVM) Features Procedure Evaluates the MAX38904B IC in a 10-pin The EV kit is fully assembled and tested. Follow the steps (3mm x 3mm) TDFN below to verify board operation. Caution: Do not turn 1.7V to 5.5V Input Range on power supply until all connections are completed. 0.6V to 5.0V Resistor Configurable Output Voltage 1) Verify that jumper JU101 is shunted on pins 1 and 2 (EV kit enabled). (Default Output Set to 3.3V) 2) Connect the 5.5V power supply between the IN and Up to 2A Output Current nearest GND terminal posts. Proven 2-Layer 1-oz Copper PCB Layout 3) Connect the 2A electronic load between the OUT and Demonstrates Compact Solution Size nearest GND terminal posts. Fully Assembled and Tested 4) Connect the DVM between the OUT and nearest GND terminal posts. MAX38904B TDFN EV Kit Files 5) Turn on the power supply. FILE DECRIPTION 6) Verify that the voltage at the OUT terminal post is EV Kit Bill of approximately 3.3V. MAX38904B TDFN EV Kit BOM Material 7) Decrease the power supply to 3.6V (To minimize MAX38904B TDFN EV Kit PCB Layout EV Kit Layout power dissipation at full load). MAX38904B TDFN EV Kit Schematic EV Kit Schematic 8) Enable the electronic load. 9) Verify that the voltage at the OUT terminal post is Ordering Information appears at end of data sheet. 3.3V within the device and the resistor dividers accuracy specifications. 319-100302 Rev 0 2/19Evaluates: MAX38904B MAX38904B TDFN Evaluation Kit EN (Enable) Detailed Description of Hardware The EV kit provides a jumper JU101 to enable or disable The MAX38904B TDFN EV kit evaluates the MAX38904B the MAX38904B. Refer to Table 1 for jumper setting of in a TDFN package. The MAX38904B is a low noise jumper JU101. linear regulator that delivers 2A of output current with only 5.1V of output noise from 10Hz to 100kHz. RMS This regulator requires only 100mV of input-to-output Table 1. EN (JU101) headroom at full load. SHUNT POSITION DESCRIPTION The MAX38904B TDFN EV kit operates over an input range of 1.7V to 5.5V. The EV kit comes with the 1-2* Enabled. EN = IN* MAX38904BATD+ installed and the output voltage is set 2-3 Disabled. EN = GND to 3.3V by 1% accurate feedback resistors R101 and R102. The EV kit output can be reconfigured to other *Default position. voltages from 0.6V to 5.0V by replacing feedback resistors R101 and R102. Refer to the MAX38904 IC data sheet for feedback resistor calculation. Component Suppliers Ordering Information SUPPLIER WEBSITE PART TYPE Kemet www.kemet.com MAX38904BEVK TDFN EV Kit Murata/TOKO www.murata.com Denotes RoHS TDK www.tdk.com Samsung Electro-Mechanics www.samsungsem.com America. Inc. Note: Indicate that you are using the MAX38904B when contacting these component suppliers. Maxim Integrated 2 www.maximintegrated.com