Evaluates: MAX15023 19-4282 Rev 0 9/08 MAX15023 Evaluation Kit General Description Features The MAX15023 evaluation kit (EV kit) is a fully assem- 9V to 16V Input Range bled and tested PCB that contains all the components Optional 4.5V to 5.5V Input Range for MAX15023 necessary to evaluate the performance of the MAX15023 dual, synchronous step-down controller. 1.2V/10A (VOUT1) The MAX15023 EV kit requires a 9V to 16V DC power 3.3V/5A (VOUT2) supply, which provides up to 5A for normal operation. 500kHz Switching Frequency The EV kit provides 1.2V/10A and 3.3V/5A at the out- puts. Each step-down controller operates 180 out-of- Independent Enable Inputs phase to reduce input-voltage ripple and total RMS Independent Power-Good Outputs input ripple current. Configurable for Power-Supply Sequencing The converters switching frequency is programmed to 500kHz. The EV kit includes individual enable control Operation PCB pads for each converter and power-good outputs Lead-Free and RoHS Compliant for both converters that can be configured for power- supply sequencing of the outputs. Fully Assembled and Tested Ordering Information PART TYPE MAX15023EVKIT+ EV Kit +Denotes lead-free and RoHS compliant. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 330F 20%, 25V electrolytic 10F 10%, 25V X5R ceramic C1 1 capacitor (10mm x 10.2mm) C14, C25, C26 3 capacitors (1206) Panasonic EEEFC1E331P Murata GRM31CR6E106K C2C5, C13, Not installed, ceramic capacitors Not installed, ceramic capacitors 0 C15, C23 0 C29 (0603) (0805) 22pF 5%, 50V C0G ceramic 22F 20%, 6.3V X5R ceramic C16, C17, C18, C6 1 capacitor (0603) capacitors (1206) 4 C22 Murata GRM1885C1H220J Murata GRM31CR0J226M 3300pF 5%, 50V C0G ceramic 0.22F 10%, 16V X7R ceramic C7, C9 2 capacitors (0805) C19, C20 2 capacitors (0603) Murata GRM2165C1H332J Murata GRM188R71C224K 1F 10%, 25V X5R ceramic 1500F 20%, 2.5V aluminum capacitor (0603) C8 1 electrolytic capacitor (10.3mm x C21 1 Murata GRM188R61E105K 10.3mm) Nichicon PCF0E152MCL1GS 390pF 5%, 50V C0G ceramic C10 1 capacitor (0603) 2200pF 5%, 50V C0G ceramic Murata GRM1885C1H391J C24, C27 2 capacitors (0805) 33pF 5%, 50V C0G ceramic Murata GRM2165C1H222JA capacitor (0603) C11 1 C28 0 Not installed, capacitor (1206) Murata GRM1885C1H330J JU1, JU2, JU3 3 3-pin headers 4.7F 10%, 6.3V X5R ceramic 0.8H, 12A inductor C12 1 capacitor (0603) L1 1 Coilcraft MSS1048-801NL Murata GRM188R60J475K Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX15023 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 3.3H, 6.3A inductor R21 1 10k 1% resistor (0603) L2 1 Coilcraft MSS1048-332NL 1.5 5% resistors (1210) R24, R25 2 30V, 11.6A n-channel MOSFETs Panasonic ERJ-P14J1R5U N1, N2, N3 3 (8 SO) R28, R29 2 49.9 1% resistors (0805) Fairchild FDS8880 TP1TP6 6 PC mini red test points 30V, 8.6A/6.3A n-channel MOSFET Dual, synchronous step-down (8 SO) N4 1 controller (24 TQFN-EP*) U1 1 Fairchild FDS6982AS Maxim MAX15023ETG+ P GN D ( x3), V IN , 6 Uninsulated banana jacks 3 Shunts (JU1, JU2, JU3) VOUT1, VOUT2 1 PCB: MAX15023 Evaluation Kit+ R1, R6 2 10 5% resistors (0603) *EP = Exposed pad. R2, R7, R11 0 Not installed, resistors (0603) R3, R8 2 200k 1% resistors (0603) Component Suppliers R4, R5 2 47k 5% resistors (0603) SUPPLIER PHONE WEBSITE R9, R10 2 12.1k 1% resistors (0603) Coilcraft, Inc. 847-639- 6400 www.coilcraft.com R13 1 30.1k 1% resistor (0603) Fairchild R14 1 16.2k 1% resistor (0603) 888-522- 5372 www.fairchildsemi.com Semiconductor R15 1 22.1k 1% resistor (0603) M urata El ectron ics 770-436- 1300 www .m ur at a-no rth amer ic a.com R17 1 33k 1% resistor (0603) N orth America , Inc. R18 1 1.62k 1% resistor (0603) Nichicon USA 858-824- 1515 www.nichicon-us.com R19 1 20k 1% resistor (0603) Panasonic Corp. 800-344- 2112 www.panasonic.com R20 1 45.3k 1% resistor (0603) Note: Indicate that you are using the MAX15023 when contacting these component suppliers. 2) Connect a voltmeter to the VOUT1 and PGND pads. Quick Start 3) Connect a voltmeter to the VOUT2 and PGND pads Required Equipment 4) Connect a 10A electronic load to the VOUT1 and Before beginning, the following equipment is needed: PGND banana jack connectors. MAX15023 EV kit 5) Connect a 5A electronic load to the VOUT2 and Adjustable 9V to 16V, 5A DC power supply PGND banana jack connectors. Two electronic loads 6) Connect a DC power supply to the VIN and PGND Two voltmeters banana jack connectors and set the voltage to 12V. 7) Enable the power-supply output. Procedure The MAX15023 EV kit is fully assembled and tested. 8) Enable the electronic loads connected at VOUT1 Follow the steps below to verify board operation. and VOUT2 and set to 10A and 5A, respectively. Caution: Do not turn on the power supply until all 9) Verify that voltmeters at VOUT1 and VOUT2 mea- connections are completed. sure 1.2V and 3.3V, respectively. 1) Install shunts across pins 1-2 of jumpers JU1 (VOUT1 enabled), JU2 (VOUT2 enabled), and JU3 (VIN input source for U1). 2 Evaluates: MAX15023