MAX15118 Evaluation Kit Evaluates: MAX15118 General Description Features The MAX15118 evaluation kit (EV kit) provides a S Operates from a 2.7V to 5.5V Input Supply proven design to evaluate the MAX15118 high-efficiency, S All-Ceramic Capacitor Design 18A, step-down regulator with integrated switches in S 1MHz Switching Frequency a 28-bump wafer-level package (WLP). The EV kit is S Output Voltage Range: preset for 1.5V output at load currents up to 18A from a 2.7V to 5.5V input supply. The device features a 0.6V Up to (0.94 x V ) Forced PWM IN 1MHz fixed switching frequency, which allows the EV 0.6V Up to (0.85 x V ) Skip Mode IN kit to achieve an all-ceramic capacitor design and fast S Enable Input/Power-Good Output transient responses. S Selectable Skip-Mode Functionality S Proven PCB Layout Ordering Information appears at end of data sheet. S Fully Assembled and Tested Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION C17, C23, C24, Not installed, ceramic capacitors 22FF Q20%, 6.3V X5R ceramic 0 C29 (0603) capacitors (1206) C1C4 4 Murata GRM31CR60J226M 4700pF Q10%, 50V X7R ceramic TDK C3216X5R0J226M capacitor (0603) C18 1 Murata GRM188R71H472K C5, C6, C25, Not installed, ceramic capacitors 0 TDK C1608X7R1H472K C28 (1206) 150FF Q20%, 6.3V X5R ceramic 10FF Q10%, 6.3V X5R ceramic C7C10 4 capacitors (1210) capacitors (0603) C19, C20, C30 3 Murata GRM32RC60G157M Murata GRM188R60J106K TDK C1608X5R0J106K Not installed, ceramic capacitors C11, C12 0 (1210) 2.2FF Q10%, 16V X7R ceramic capacitor (0603) 0.47FF Q10%, 16V X7R ceramic C21 1 Murata GRM188R61C225K capacitor (0603) C13 1 TDK C1608X5R1C225K Murata GRM188R71C474K TDK C1608X7R1A474K 1000FF Q20%, 10V aluminum electrolytic capacitors (10.3mm x 22pF Q5%, 50V C0G ceramic C22, C27 2 10.3mm) capacitor (0603) C14 1 Panasonic EEEFP1A102AP Murata GRM1885C1H220J TDK C1608C0G1H220J IN, OUT, 4 Binding posts PGND (x2) 3300pF Q10%, 50V X7R ceramic JU1 1 2-pin header capacitor (0603) C15 1 Murata GRM188R71H332K JU2 1 3-pin header TDK C1608C0G1H332K 0.15FH, 24A, 3.2mI inductor L1 1 Pulse PA0512.151NLT 0.1FF Q10%, 50V X7R ceramic capacitor (0603) 14in Q1/2in red wire, 18G C16 1 OUT 4 TDK C1608X7R1H104K stranded (16/30) Murata GRM188R71H104K 14in Q1/2in black wire, 18G PGND 4 stranded (16/30) For pricing, delivery, and ordering information, please contact Maxim Direct at 19-5994 Rev 1 9/12 1-888-629-4642, or visit Maxim Integrateds website at www.maximintegrated.com.MAX15118 Evaluation Kit Evaluates: MAX15118 Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION Q1 0 Not installed, transistor (SOT23) R12 1 10I Q5%, resistor (0603) R1 1 8.06kI Q1% resistor (0603) R14 1 470I Q5% resistor (0402) R2 1 5.36kI Q1% resistor (0603) High-efficiency, 18A, R3 1 3.83kI Q1% resistor (0603) synchronous buck regulator U1 1 (28 WLP) R4, R5 2 100kI Q5% resistors (0603) Maxim MAX15118EWI+ R6 1 100I Q5% resistor (0603) R7 1 4.7I Q5% resistor (0603) 2 Shunts R8 1 1I Q5% resistor (0805) PCB: MAX15118 EVALUATION 1 KIT R9, R11, R13 3 0I resistors (0603) Not installed, resistorshort R10 0 (PC trace) (0603) Component Suppliers SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Pulse Engineering 858-674-8100 www.pulseeng.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX15118 when contacting these component suppliers. 4) Verify that a shunt is installed on jumper JU1. Quick Start 5) Verify that a shunt is installed on pins 2-3 on Recommended Equipment jumper JU2. MAX15118 EV kit 6) Turn on the DC power supply. 5V, 10A DC power supply 7) Enable the load. Load capable of sinking 18A 8) Verify that the voltmeter displays 1.5V. Digital voltmeter Detailed Description of Hardware Procedure The EV kit is fully assembled and tested. Follow the The MAX15118 EV kit provides a proven design to steps below to verify the board operation. Caution: Do evaluate the MAX15118 high-efficiency, 18A, step-down not turn on power supply until all connections are regulator with integrated switches. The applications completed. include distributed power systems, portable devices, and preregulators. The EV kit is preset for 1.5V output 1) Connect the positive terminal of the 5V supply to the at load currents up to 18A from a 2.7V to 5.5V input IN PCB pad and the negative terminal to the nearest supply. The device features a 1MHz fixed switching PGND PCB pad. frequency, which allows the EV kit to achieve an all- 2) Connect the positive terminal of the 18A load to ceramic capacitor design and fast transient responses. the OUT PCB pad and the negative terminal to the Input aluminum electrolytic capacitors (C22, C27) are nearest PGND PCB pad. provided to damp the input if long wires are used they 3) Connect the digital voltmeter across the OUT PCB are not required in a tight system design. pad and the nearest PGND PCB pad. Maxim Integrated 2