MAX17501B/MAX17501F Evaluation Kits Evaluate: MAX17501B/MAX17501F in TDFN Packages General Description Features The MAX17501B/MAX17501F evaluation kits (EV kits) S Operates from a 6V to 60V Input Supply provide proven designs to evaluate the MAX17501B/ S 5V Fixed Output Voltage MAX17501F high-efficiency, high-voltage, synchronous S 500mA Output Current step-down DC-DC converters. The EV kits use these S 600kHz Switching Frequency devices to generate a fixed 5V at load currents up to 500mA from a 6V to 60V input supply. The MAX17501B S Enable/UVLO Input supports a PFM control scheme with high light-load S Resistor-Programmable UVLO Threshold efficiency, while the MAX17501F features a forced- S Open-Drain RESET Output PWM control scheme that provides constant switching- frequency operation at all load and line conditions. S Overcurrent and Overtemperature Protection S PFM/PWM (MAX17501B EV Kit) S PWM (MAX17501F EV Kit) S Proven PCB Layout S Fully Assembled and Tested Ordering Information appears at end of data sheet. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION JU1 1 3-pin header 1FF Q10%, 100V X7R ceramic C1 1 capacitor (1206) 47FH, 1.4A inductor Murata GRM31CR72A105KA01L L1 1 (6mm x 6mm x 3.5mm) Coilcraft LPS6235-473ML 1FF Q10%, 6.3V X7R ceramic C2 1 capacitor (0603) R1 1 3.32MI Q1% resistor (0402) Murata GRM188R70J105K R2 1 866kI Q1% resistor (0402) 3300pF Q10%, 50V X7R ceramic R4 1 100I resistor (0402) C3 1 capacitor (0402) R6 1 10kI Q1% resistor (0402) Murata GRM155R71H332K TP1, TP2 0 Not installed, test points 10FF Q10%, 10V X7R ceramic See the EV Kit-Specific C4 1 capacitor (1206) U1 1 Component List Murata GRM31CR71A106K 1 Shunt 33FF, 80V aluminum electrolytic PCB: See the EV Kit-Specific C7 1 (D = 8mm) 1 Component List Panasonic EEEFK1K330P For pricing, delivery, and ordering information, please contact Maxim Direct at 19-6436 Rev 1 10/13 1-888-629-4642, or visit Maxim Integrateds website at www.maximintegrated.com.MAX17501B/MAX17501F Evaluation Kits Evaluate: MAX17501B/MAX17501F in TDFN Packages EV Kit-Specific Component List EV KIT DESIGNATION DESCRIPTION Buck converter (10 TDFN-EP*) U1 Maxim MAX17501BATB+ MAX17501BTEVKIT PCB: MAX17501BT EVALUATION KIT Buck converter (10 TDFN-EP*) U1 Maxim MAX17501FATB+ MAX17501FTEVKIT PCB: MAX17501FT EVALUATION KIT *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE Coilcraft, Inc. 847-639-6400 www.coilcraft.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Panasonic Corp. 800-344-2112 www.panasonic.com Note: Indicate that you are using the MAX17501 when contacting these component suppliers. 5) Turn on the DC power supply. Quick Start 6) Enable the load. Recommended Equipment 7) Verify that the DVM displays the expected voltage. MAX17501B or MAX17501F EV kit To turn-on/off the part from EN/UVLO, follow the steps 6V to 60V, 1A DC input power supply below: Load capable of sinking 500mA 1) Remove resistors R1 and R2 and the jumper installed Digital voltmeter (DVM) across pins 1-2 on jumper JU1. Function generator 2) Connect the power supply to the EV kit and turn on the power supply. Set the power supply at a voltage Procedure between 6V and 60V. The EV kit is fully assembled and tested. Follow the steps 3) Connect the function generator output to the below to verify the board operation. Caution: Do not turn EN/UVLO test loop. on power supply until all connections are completed. 4) EN/UVLO rising threshold is 1.24V and falling threshold 1) Set the power supply at a voltage between 6V and 60V. is 1.11V. Make sure that the voltage-high and voltage- Disable the power supply. low levels of the function generator output are greater 2) Connect the positive terminal of the power supply to the than 1.24V and less than 1.11V, respectively. VIN PCB pad and the negative terminal to the nearest 5) While powering down the EV kits, first disconnect the PGND PCB pad. Connect the positive terminal of the function generator output from the EN/UVLO test loop 500mA load to the VOUT PCB pad and the negative and then turn off the DC power supply. terminal to the nearest PGND PCB pad. Care should be taken in board layout and systems wir- 3) Connect the DVM across the VOUT PCB pad and the ing to prevent violation of the absolute maximum rating of nearest PGND PCB pad. the FB/VO pin under short-circuit conditions. Under such 4) Verify that a shunt is installed across pins 1-2 on jumper conditions, it is possible for the ceramic output capacitor to JU1. oscillate with the board or wiring inductance between the Maxim Integrated 2