Click here for production status of specific part numbers. Evaluates: MAX17250 in WLP MAX17250 WLP Evaluation Kit General Description Quick Start The MAX17250 WLP evaluation kit (EV kit) evaluates Required Equipment the MAX17250 IC in the wafer-level package (WLP). MAX17250 WLP EV kit The MAX17250 are high-efficiency, low quiescent 18V, 5A DC power supply current, synchronous step-up DC-DC converters with True Shutdown, programmable input current limit, and Electronic load capable of 2A short-circuit protection. The MAX17250 EV kit operates Digital voltmeter (DVM) over an input range of 2.7V to 18V, depending on load. The EV kit provides resistor-configurable output voltages Procedure from 3V to 18V. The input peak current limit can be set The EV kit is fully assembled and tested. Follow the steps to 3.5A/2.7A/1.85A of current. The EV kit comes with the below to verify board operation. MAX17250ANC+ (WLP) installed. Caution: Do not turn on power supply until all connections are completed. Features 1) Verify that jumpers JU1 and JU2 are in their default Evaluate the MAX17250 IC in a 12-Ball (1.49mm x positions, as shown in Table 1 and Table 2. 1.72mm) WLP 2) Connect the power supply between the IN1 and 2.7V to 18V Input Range nearest PGND1 terminal posts. 3V to 18V Configurable Output Voltage 3) Connect the electronic load between the OUT1 and nearest PGND1 terminal posts. Up to 3.5A/2.7A/1.85A Input Peak Current 4) Connect the DVM between the OUT1 and nearest Proven 4-Layer 1.5-oz Copper PCB Layout PGND1 terminal posts. Demonstrates Compact Solution Size 5) Set the power supply to 6V and turn it on. 6) Set the electronic load to 500mA at constant current Fully Assembled and Tested mode, then enable the electronic load. 7) Verify that the voltage at the OUT1 terminal post is Ordering Information appears at end of data sheet. approximately 12V. MAX17250 WLP EV Kit Files FILE DECRIPTION MAX17250 WLP EV BOM EV Kit Bill of Material MAX17250 WLP EV PCB Layout EV Kit Layout MAX17250 WLP EV Schematic EV Kit Schematic MAX17250 WLP Minimal Component Schematic Minimal Component Circuit 319-100242 Rev 0 8/18Evaluates: MAX17250 in WLP MAX17250 WLP Evaluation Kit Table 1. EN (JU101) Detailed Description of Hardware The MAX17250 WLP EV kit evaluates the MAX17250 IC JU1 in a WLP package. The MAX17250 are high-efficiency, SHUNT DESCRIPTION low quiescent current, synchronous step-up DC-DC POSITION converters with True Shutdown, programmable input 1-2* Enabled. EN = IN1 x R2/(R1+R2) current limit, and short-circuit protection. The MAX17250 External Logic connected to EN1 test point WLP EV kit operates over an input range of 2.7V to 18V, 1-3 (1.5V or higher = Enable, 0V = Disabled) depending on load. The EV kit provides resistor-configurable output voltages from 3V to 18V. The inductor peak current 1-4 Disabled. EN = PGND1 limit can be set to 3.5A/2.7A/1.85A. Disabled. EN = PGND1 through pulldown Not Installed The EV kit comes with the MAX17250ANC+ (WLP) resistor R2. installed and is configured for a 12V output. The 12V *Default position. output can deliver 720mA of current at 6V input. EN Table 2. ISET (JU102) The MAX17250 WLP EV kit provides a jumper JU1 to JU2 configure the EN pin of the MAX17250. Different settings SHUNT DESCRIPTION of this jumper can simulate different controlling scenarios POSITION at the EN pin. Refer to Table 1 for JU1 jumper settings. ISET = VL1 (Inductor Peak Current Limit set 1-2* ISET to 3.5A) The MAX17250 WLP EV kit provides a jumper JU2 to ISET = AGND1 (Inductor Peak Current Limit 2-3 configure the ISET pin of the MAX17250. Different settings set to 2.7A) of this jumper set the input inductor peak current to a ISET = OPEN (Inductor Peak Current Limit different value. Refer to Table 2 for JU2 jumper settings. Not Installed set to 1.85A) Spare Inductors *Default position. The MAX17250 WLP EV Kit provides spare inductors on the PCBs solder side. These spare inductors can be used to reconfigure the EV Kit output current ratings. Component Suppliers SUPPLIER WEBSITE Coilcraft www.coilcraft.com Murata/TOKO www.murata.com TDK www.tdk.com Wurth Elektronik www.we-online.com Note: Indicate that you are using the MAX17250 when contacting these component suppliers. Ordering Information PART TYPE MAX17250EVKIT WLP EV Kit Denotes RoHS Maxim Integrated 2 www.maximintegrated.com