MAXM15063EVKIT#

Click here for production status of specific part numbers. MAXM15063 5V Output Evaluation Kit General Description The MAXM15063 5V output evaluation kit (EV kit) provides a proven design to evaluate the MAXM15063 high-voltage, high-efficiency, synchronous step-down DC-DC module. The EV kit is programmed to deliver 5V output for loads up to 300mA. The EV kit features an adjustable input undervoltage lockout, selectable mode, and open-drain RESET signal. The MAXM15063 data sheet provides a complete description of the module that should be read in conjunction with this EV kit data sheet prior to modifying the demo circuit. For full module features, benefits and parameters, refer to the MAXM15063 data sheet. Features ●● Highly Integrated Solution ●● Wide 12V to 60V Input Range ●● Fixed 5V Output, Delivers Up To 300mA Output Current ●● High 81.72% Efficiency (VIN = 24V, VOUT = 5V at 220mA) ●● 500kHz Switching Frequency ●● ENABLE/UVLO Input, Resistor-Programmable UVLO Threshold ●● PFM Feature for Better Light-Load Efficiency ●● Fixed Internal 4.1ms Soft-Start Time ●● RESET Output, with Pullup Resistor to VCC ●● Overcurrent and Overtemperature Protection (OCP and OTP) Evaluates: MAXM15063 5V Output-Voltage Application Quick Start Recommended Equipment ●● One 4.5V to 60V DC, 300mA power supply ●● 1.5W resistive load with 300mA sink capacity ●● Four digital multimeters (DMM) ●● MAXM15063EVKIT# Equipment Setup and Test Procedure The EV kit is fully assembled and tested. Follow the steps below to verify the board operation. Caution: Do not turn on power supply until all connections are completed. 1) Set the power supply at a voltage between 4.5V and 60V. Then, disable the power supply. 2) Connect the positive terminal of the power supply to the VIN PCB pad and the negative terminal to the nearest GND PCB pad. Connect the positive terminal of the 300mA load to the VOUT PCB pad and the negative terminal to the nearest GND PCB pad. 3) Connect the DVM (DMM in voltage-measurement mode) across the VOUT PCB pad and the nearest GND PCB pad. 4) Verify that shunt is not installed on jumper J1 (see Table 1 for details). 5) Turn on the DC power supply. 6) Enable the load. 7) Verify that the DVM displays 5V. ●● Low-Profile, Surface-Mount Components ●● Proven PCB Layout ●● Fully Assembled and Tested ●● Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions 319-100324; Rev 0; 3/19 Ordering Information appears at end of data sheet. Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit Detailed Description Electromagnetic Interference (EMI) Output Capacitor Selection Use EMI filter components as shown in Figure 1 in conjunction with the schematic results in lower conducted emissions below CISPR22 Class B limits. The MAXM15063 EV kit PCB layout is also designed to limit radiated emissions from switching nodes of the power converter, resulting in radiated emissions below CISPR22 Class B limits. The MAXM15063 EV kit is designed to demonstrate salient features of MAXM15063 power module. The EV kit includes an EN/UVLO PCB pad, and jumper J1, to enable the output at a desired input voltage. Jumper J2 allows selection of either PWM or PFM mode of operation based on light-load performance requirements. An additional RESET pad is available for monitoring if the converter output voltage is in regulation. X7R ceramic output capacitors are preferred due to their stability over temperature in industrial applications. The required output capacitor (C5) for 5V output is selected from Table 1 of the MAXM15063 data sheet as 10µF/6.3V. Fixed Output Voltage The MAXM15063 is a fixed 5V output module. Connect FB of MAXM15063 directly to VOUT for feedback control. Enable/Undervoltage-Lockout (EN/UVLO) Programming The MAXM15063 offers an adjustable input undervoltagelockout feature. In this EV kit, for normal operation, leave jumper J1 open. When J1 is left open, the MAXM15063 is enabled when the input voltage rises above 12V. To disable MAXM15063, install a jumper across pins 2-3 on J1. See Table 1 for J1 settings. A potential divider formed by R1 and R2 sets the input voltage (VINU) at which the module is enabled. The value of resistor R1 is chosen to be 2.2MΩ, and R2 is calculated using the following equation: R2 = Table 1. UVLO Enable/Disable Configuration (J1) POSITION EN/UVLO PIN MAXM15063_ OUTPUT Not Installed* Connected to the center node of resistor-divider R1 and R2. Programmed to startup at desired input-voltage level. 1-2 Connected to VIN Enabled if VIN is greater than VIN(MIN). 2-3 Connected to GND Disabled *Default position R 1 × 1.215 ( VINU − 1.215 ) where R1 and R2 are in kΩ, For MAXM15063 to turn on at 12V input, the Resistor R2 is calculated to be 249kΩ. Input Capacitor Selection The input capacitor serves to reduce the current peaks drawn from the input power supply and reduces switching frequency ripple at the input. The input capacitance must be greater than or equal to the value given in Table 1 of MAXM15063 data sheet. Input capacitor C3 is chosen to be 1µF/100V. www.maximintegrated.com Compliance to conducted emissions (CE) standards requires an EMI filter at the input of a switching power converter. The EMI filter attenuates high-frequency cur¬rents drawn by the switching power converter, and limits the noise injected back into the input power source. VIN_EMI VIN L1 VIN_EMI C7 C8 0.1µF 0.68µF 82µH C9 1µF Figure 1. EMI Filter Components Maxim Integrated │  2 Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit Hot-Plug-In and Long Input Cables Mode of Operation The MAXM15063 EV kit PCB provides an optional electrolytic capacitor (C2, 4.7µF/100V) to dampen input voltage peaks and oscillations that can arise during hotplug-in and/or due to long input cables. This capacitor limits the peak voltage at the input of the MAXM15063 power module, when the EV kit is powered directly from a precharged capacitive source or an industrial backplane PCB. Long input cables, between input power source and the EV kit circuit can cause input-voltage oscillations due to the inductance of the cables. The equivalent series resistance (ESR) of the electrolytic capacitor helps damp out the oscillations caused by long input cables. Further, capacitor C1 (0.1µF/100V), placed near the input of the board, helps in attenuating high frequency noise. The MAXM15063 features PFM mode of operation to increase the efficiency at light-load condition. If the MODE pin is left unconnected during powerup, the module operates in PFM mode at light loads. If the MODE pin is connected to GND during power-up, the part operates in constant-frequency PWM mode at all loads. See Table 2 for J2 settings. Internal LDO An internal regulator provides a 5V nominal supply to power the internal functions of the module. The output of the linear regulator (VCC) should be bypassed with a 1µF capacitor C4 to GND. Table 2. Mode of Operation (J2) POSITION MODE PIN 1-2 Operates in PWM mode. Not Installed* Operates in PFM mode at light-load conditions. *Default position EV Kit Performance Report STARTUP THROUGH ENABLE VIN = 24V,VOUT = 5V, FULL LOAD, PWM MODE EFFICIENCY vs. LOAD CURRENT VOUT = 5V, PWM MODE 100 5V/div EN/UVLO 2V/div EFFICIENCY (%) 20V/div 90 80 80 VIN = 12V 60 VIN = 24V 50 VIN = 36V 40 VIN = 48V 30 VOUT 5V/div 20 VIN = 60V 0 1ms/div 70 60 50 VIN = 36V 40 VIN = 12V 30 VIN = 24V VIN = 60V VIN = 48V 20 0 0 30 60 90 120 150 180 210 240 270 300 LOAD CURRENT (mA) www.maximintegrated.com toc03 10 10 RESET 100 90 70 LX EFFICIENCY vs. LOAD CURRENT VOUT = 5V, PFM MODE toc02 EFFICIENCY (%) toc01 1 10 100 LOAD CURRENT (mA) Maxim Integrated │  3 Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit EV Kit Performance Report (continued) OUTPUT VOLTAGE vs. LOAD CURRENT VOUT = 5V, PFM MODE OUTPUT VOLTAGE vs. LOAD CURRENT VOUT = 5V, PWM MODE toc04 toc06 5.110 VIN = 60V VIN = 48V 5.0064 5.0038 5.0012 VIN = 36V 5.008 5.085 OUTPUT VOLTAGE (V) 5.009 VIN = 12V VIN = 24V VIN = 12V 5.060 VIN = 24V 5.035 VIN = 36V VIN = 60V 5.010 4.985 4.9986 4.996 0 30 60 4.960 90 120 150 180 210 240 270 300 OUTPUT VOLTAGE (V) 5.0116 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE vs. INPUT VOLTAGE VOUT = 5V, PWM MODE toc05 5.000 0 30 60 90 120 150 180 210 240 270 300 4.992 0 20 LOAD CURRENT (mA) 40 60 80 INPUT VOLTAGE(V) LOAD TRANSIENT RESPONSE VIN = 24V, VOUT = 5V, PWM MODE (LOAD CURRENT STEPPED FROM 150mA TO 300mA) LOAD TRANSIENT RESPONSE VIN = 24V, VOUT = 5V, PFM MODE (LOAD CURRENT STEPPED FROM 5mA TO 150mA) toc07 IOUT = 300mA IOUT = 200mA 4.996 VIN = 48V LOAD CURRENT (mA) OUTPUT VOLTAGE RIPPLE VIN = 24V, VOUT = 5V FULL LOAD, PWM MODE IOUT = 100mA IOUT = 0A 5.004 toc09 toc08 50mV/div VOUT(AC) 100mV/div VOUT(AC) 10mV/div VOUT(AC) 100mA/div IOUT 100mA/div 100µs/div 2µs/div BODE PLOT VIN = 24V, VOUT = 5V, FULL LOAD, PWM MODE toc10 80 CONDUCTED EMISSION PLOT (EMI FILTER C = 0.1µF + 0.68µF, L = 82µH, C = 1µF) 90 70 toc11 0 0 GAIN -20 -30 -40 -60 CROSSOVER FREQUENCY = 50.57kHz PHASE MARGIN = 61.155º 1k 10k FREQUENCY (Hz) www.maximintegrated.com -60 MAGNITUDE (dBµV) 20 30 PHASE MARGIN (º) PHASE CISPR-22 CLASS B AVG LIMIT 50 40 30 PEAK EMISSION 20 toc12 50 40 CISPR-22 CLASS B QP LIMIT 30 VERTICAL SCAN 20 10 10 AVERAGE EMISSION -90 100k RADIATED EMISSION PLOT (C6 = 0.1µF, C7, C8, C9 = OPEN, L1 = SHORT) 60 CISPR-22 CLASS B QP LIMIT 60 MAGNITUDE (dBµV/m) 60 40 GAIN (dB) 100µs/div 70 60 -80 IOUT 150k 1M 10M FREQUENCY (Hz) CONDITIONS : VIN = 24V, VOUT = 5V, IOUT = 0.3A 0 -10 HORIZONTAL SCAN 30M 100M FREQUENCY (Hz) 1G CONDITIONS : VIN = 24V, VOUT = 5V, IOUT = 0.3A Maxim Integrated │  4 Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit Ordering Information Component Suppliers PART TYPE MAXM15063EVKIT# EV Kit SUPPLIER #Denotes RoHS compliant. WEBSITE Murata Americas www.murata.com NEC TOKIN America, Inc. www.nec-tokinamerica.com Panasonic Corp. www.panasonic.com SANYO Electric Co., Ltd. www.sanyodevice.com TDK Corp. www.component.tdk.com TOKO America, Inc. www.tokoam.com Note: Indicate that you are using the MAXM15063 when contacting these component suppliers. MAXM15063 5V EV Kit Bill of Materials ITEM QTY DESIGNATION 1 1 C1 2 1 3 4 5 1 1 1 DESCRIPTION 0.1µF±10%,100V, X7R ceramic capacitor (0603) MANUFACTURER PARTNUMBER-1 YAGEO PHICOMP CC0603KRX7R0BB104 C2 4.7µF±20%,100V, Aluminimum Capacitor NICHICON UUR2A4R7MCL6GS C3 1µF±10%,100V, X7R ceramic capacitor (1206) MURATA GRM31CR72A105KA01 TDK C3216X7R2A105K160AA C4 1µF±10%,16V, X7R ceramic capacitor (0603) MURATA GRM188R71C105KA12 TDK C1608X7R1C105K080AC C5 10µF±10%,6.3V, X7R ceramic capacitor (1206) MURATA GRM31CR70J106K 6 1 C6 7 8 1 1 R1 R2 OPEN (OPTIONAL : 0.1μF±10%,50V, X7R ceramic capacitor (0603)) 2.2MΩ ±1% resistor (0402) 249kΩ ±1% resistor (0402) 9 1 R3 100kΩ ±1% resistor (0402) VISHAY DALE CRCW0402100KFK 10 1 U1 MAXM15063, 10-pin micro-SLIC Power Module MAXIM MAXM15063AMB+T Murata LQH2MPN820MGRL Murata GRM188R71H104KA93 VISHAY DALE CRCW04022M20FK VISHAY DALE CRCW0402249KFK 11 1 L1 OPTIONAL : 82µH Shielded Wirewound Inductor(2016) 12 1 C7 OPTIONAL : 0.1μF±10%,100V, X7R ceramic capacitor (0603) Murata GRM188R72A104KA35 13 1 C8 OPTIONAL : 0.68μF±10%,100V, X7R ceramic capacitor (1206) Murata GRM31MR72A684KA35 C9 OPTIONAL : 1μF±10%100V, X7R ceramic capacitor (1206) Murata GRM31CR72A105KA01L 14 1 www.maximintegrated.com MANUFACTURER PARTNUMBER-2 YAGEO PHICOMP RC0402FR-07100KL Maxim Integrated │  5 MODE EN/UVLO GND 0.1UF 100V C1 VIN 4.7UF 100V C2 1 + 2 VIN J2 J1 C3 1UF 100V 1 3 1 2 2 VCC C4 1UF 16V R2 249K R1 2.2M 7 4 8 GND VCC MODE EN/UVLO VIN 10 2 www.maximintegrated.com 9 VIN LX 100K R3 VCC MAXM15063 U1 3 RESET LX 6 FB OUT 5 1 C5 10UF 6.3V VOUT C6 OPEN RESET PGND VOUT MAXM15063 5V Output Evaluation Kit Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V EV Kit Schematic Maxim Integrated │  6 Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit MAXM15063 5V EV Kit PCB Layout Diagrams 1” MAXM15063 EV Kit PCB Layout—Silk Top 1” MAXM15063 EV Kit PCB Layout—Top Layer www.maximintegrated.com Maxim Integrated │  7 Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit MAXM15063 5V EV Kit PCB Layout Diagrams (continued) 1” MAXM15063 EV Kit PCB Layout—Layer 2 Ground 1” MAXM15063 EV Kit PCB Layout—Layer 3 Power www.maximintegrated.com Maxim Integrated │  8 Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit MAXM15063 5V EV Kit PCB Layout Diagrams (continued) 1” MAXM15063 EV Kit PCB Layout—Bottom Layer www.maximintegrated.com Maxim Integrated │  9 Evaluates: MAXM15063 5V Output-Voltage Application MAXM15063 5V Output Evaluation Kit Revision History REVISION NUMBER REVISION DATE 0 3/19 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. ©  2019 Maxim Integrated Products, Inc. │  10