19-5845 Rev 0 5/11 MAX17116 Evaluation Kit Evaluates: MAX17116 in a 12-Pin UTDFN Package General Description Features The MAX17116 evaluation kit (EV kit) is a fully assem- S +2.3V to +4.2V Input Range bled and tested surface-mount PCB that evaluates the S High-Performance PWM Step-Up Regulator MAX17116 dual-output DC/DC power supply for active- S High-Performance PWM Inverting Regulator matrix organic light-emitting diode (AMOLED) displays, S 1.4MHz Switching Frequency available in a 12-pin UTDFN package with an exposed pad. The EV kit includes dual switch-mode power-supply S Shutdown Control (SMPS) outputs, a fixed 4.6V PWM step-up regulator, and S Proven PCB Layout an adjustable (-5.4V to -1.5V) PWM inverting regulator. S Fully Assembled and Tested The EV kit operates from a +2.3V to +4.2V single power supply. Ordering Information appears at end of data sheet. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION Not installed, resistorshort PC 4.7FF Q10%, 10V X5R ceramic R1 0 trace (0603) C1, C3 2 capacitors (0603) TDK C1608X5R1A475K Dual-output DC/DC power supply for AMOLED displays 10FF Q10%, 10V X7R ceramic U1 1 (12 UTDFN-EP) C2, C4 2 capacitors (0805) Maxim MAX17116EVC+ Murata GRM21BR71A106K 1 Shunt Not installed, ceramic capacitors C5, C6 0 (0805) PCB: MAX17116 EVALUATION 1 KIT JU1 1 3-pin header 4.7FH, 0.9A low-profile inductors L1, L2 2 Sumida CDH36D07HF-4R7MC Component Suppliers SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Sumida Corp. 847-545-6700 www.sumida.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX17116 when contacting these component suppliers. 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.MAX17116 Evaluation Kit Evaluates: MAX17116 in a 12-Pin UTDFN Package by an inverting regulator with a synchronous rectifier. Quick Start The step-up regulator output is a fixed voltage of +4.6V and the inverting regulator output is adjustable from -5.4V Recommended Equipment to -1.5V through the single-wire EN serial interface. The EV MAX17116 EV kit kit operates from a +2.3V to +4.2V single power supply. +2.3V to +4.2V, 1A power supply (VIN) Step-Up Regulator Two digital voltmeters The EV kit includes a step-up DC-DC converter with an Procedure integrated power MOSFET switch and synchronous The EV kit is fully assembled and tested. Follow the steps rectifier. The step-up regulator output (ELVDD) has a below to verify board operation. Caution: Do not turn on fixed voltage of +4.6V and can provide an output current the power supply until all connections are completed. of 250mA. 1) Verify that jumper JU1 is in the default position, as Inverting Converter shown in Table 1. The EV kit contains an inverting DC-DC converter with 2) Connect the positive terminal of the power supply integrated power MOSFET switch and synchronous recti- to the VIN PCB pad and the negative terminal to the fier. The inverting regulator output (ELVSS) is adjustable nearest PGND PCB pad. from -5.4V to -1.5V and can provide an output current of 250mA. The ELVSS output voltage can be adjusted 3) Connect the first voltmeter across the ELVDD PCB through the single-wire EN serial interface. pad and the nearest PGND PCB pad. Enable Input and Serial Interface Input 4) Connect the second voltmeter across the ELVSS PCB pad and the nearest PGND PCB pad. The EV kit features a 3-pin jumper (JU1) to control the enable input and an EN test pad to access the serial inter- 5) Turn on the DC power supply. face input. Connect EN to IN for normal operation. Connect 6) Verify that the voltmeters display V = +4.6V and ELVDD EN to AGND to place the device into shutdown mode. V = -4.9V. ELVSS The enable pin is also used as a serial-interface input to adjust the inverting converter output voltage. With no Detailed Description of Hardware shunts installed on jumper JU1, connect an external pulse generator at the EN test pad and send the required serial The MAX17116 EV kit includes two current-mode pulses. Refer to the EN Serial Interface section in the 1.4MHz SMPS regulators for AMOLED displays. The MAX17116 IC data sheet for a more detailed description. positive supply is provided by a step-up regulator with a Table 1 lists the selectable jumper options. synchronous rectifier. The negative supply is provided Table 1. Jumper JU1 Function SHUNT POSITION EN PIN SMPS REGULATORS V = +4.6V ELVDD 1-2* Connected to IN V = -4.9V ELVSS V = 0V ELVDD 2-3 Connected to AGND V = 0V ELVSS External pulses must be applied to the V = +4.6V ELVDD Not installed EN test pad V = -5.4V to -1.5V (based on EN pulses) ELVSS *Default position. Maxim Integrated Products 2