MAXM17623EVKIT MAXIM | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 9

Technical content

Features

  • Highly Integrated Solution
  • 2.9V to 5.5V Input Range
  • Programmed 1.5V Output, Delivers Up To 1A Output Current
  • High 90.3% Efficiency (VIN = 5V, VOUT = 1.5V at 0.4A)
  • 2MHz Switching Frequency
  • PFM Feature for Better Light-Load Efficiency
  • Fixed Internal 1ms Soft-Start Time
  • PGOOD Output, with Pullup Resistor to V IN
  • Overcurrent and Overtemperature Protection (OCP and OTP)
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested 319-100300; Rev 2; 1/20 Ordering Information appears at end of data sheet. Quick Start Recommended Equipment
  • One 2.9V to 5.5V DC, 1A power supply
  • One resistive load with 1.5V, 1A sink capacity
  • One digital multimeter (DMM)
  • MAXM17623EVKIT# 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 2.9V and 5.5V. 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 PGND PCB pad. Connect the positive ter - minal of the 1A load to the VOUT PCB pad and the negative terminal to the nearest PGND PCB pad. 3) Connect the DVM (DMM in voltage-measurement mode) across the VOUT PCB pad and the nearest PGND PCB pad. 4) Verify that shunt is installed in the default position 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 1.5V. Click here for production status of specific part numbers.

monitoring if the converter output voltage is in regulation. from Table 1 of the MAXM17623 data sheet as 22µF/6.3V. board, helps in attenuating high frequency noise. Table 1. Enable/Disable Configuration (J1) Table 2. Mode of Operation (J2) 1-2* Connected to VIN Enabled if VIN is greater than VEN-HIGH. 1-2 Operates in PWM mode at all load conditions. Not Installed* Operates in PFM mode at light-load conditions.

Maxim Integrated │ 3 www.maximintegrated.com Evaluates: MAXM17623 1.5V Output-Voltage Application MAXM17623 1.5V Output Evaluation Kit EV Kit Performance Report 0.01 0.1 1 EFFICIENCY (%) LOAD CURRENT (A) MAXM17623 EFFICIENCY vs. LOAD CURRENT VOUT = 1.5V, PWM AND PFM MODE toc01 VIN = 3.3V, PFM MODE VIN = 5V, PFM MODE VIN = 3.3V, PWM MODE VIN = 5V, PWM MODE 1.495 1.497 1.499 1.501 1.503 1.505 0.01 0.1 1 OUTPUT VOLTAGE (V) LOAD CURRENT (A) MAXM17623 OUTPUT VOLTAGE vs. LOAD CURRENT VOUT = 1.5V, PWM AND PFM MODE toc02 VIN = 3.3V, PFM MODE VIN = 5V, PFM MODE VIN = 5V, PWM MODE VIN = 3.3V, PWM MODE -200 -160 -120 -80 -40 120 160 200 -50 -40 -30 -20 -10 1000 10000 100000 1000000 GAIN PHASE (O) GIAN MAGNITUDE (dB) FREQUENCY (Hz) MAXM17623 BODE PLOT VIN = 3.3V, VOUT = 1.5V, FULL LOAD, PWM MODE toc03 MAGNITUDE PHASE CROSSOVER FREQUENCY = 103.821kHz PHASE MARGIN = 60.112◦ MAXM17623 LOAD TRANSIENT RESPONSE VIN = 3.3V, VOUT = 1.5V, MODE = PFM (LOAD CURRENT STEPPED FROM 0A TO 500mA) 50mV/div toc05 40µs/div IOUT 500mA/div VOUT (AC) MAXM17623 LOAD TRANSIENT RESPONSE VIN = 3.3V, VOUT = 1.5V, MODE = PWM (LOAD CURRENT STEPPED FROM 0.5 TO 1A) 50mV/div toc04 40µs/div IOUT 500mA/div VOUT (AC) MAXM17623 STARTUP THROUGH ENABLE VIN = 3.3V, VOUT = 1.5V, ILOAD = 1A, MODE = PWM toc06 200µs/div EN 5V/div VOUT LX PGOOD 5V/div 5V/div 1V/div

Maxim Integrated │ 4 www.maximintegrated.com Evaluates: MAXM17623 1.5V Output-Voltage Application MAXM17623 1.5V Output Evaluation Kit EV Kit Performance Report (continued) MAXM17623 SHUTDOWN THROUGH ENABLE VIN = 3.3V, VOUT = 1.5V, ILOAD = 1A, MODE = PWM toc07 20µs/div EN 5V/div VOUT LX PGOOD 5V/div 5V/div 1V/div MAXM17623 TEMPORARY OUTPUT SHORT VIN = 3.3V, VOUT = 1.5V, ILOAD = 1A, MODE = PWM toc08 100µs/div 1V/div IOUT VOUT VLX SHORT 5V/div 5V/div 1A/div MAXM17623 STARTUP INTO PREBIAS VIN = 3.3V, VPREBIAS = 0.8V, VOUT = 1.5V, ILOAD = 1A, PWM MODE toc09 200µs/div 500mV/div EN 5V/div VOUT LX PGOOD 2V/div 5V/div MAXM17623 OUTPUT VOLTAGE RIPPLE VIN = 3.3V, VOUT = 1.5V, ILOAD = 0A, PFM MODE toc11 10ms/div VOUT(AC) 10mV/div MAXM17623 OUTPUT VOLTAGE RIPPLE VIN = 3.3V, VOUT = 1.5V, ILOAD = 1A, PWM MODE toc10 400ns/div VOUT(AC) 10mV/div 0.0 0.2 0.4 0.6 0.8 1.0 1.2 25 45 65 85 105 125 LOAD CURRENT (A) AMBIENT TEMPERATURE (oC) MAXM17623 OUTPUT CURRENT vs. AMBIENT TEMPERATURE VIN = 3.3V VOUT = 1.5V toc12

Maxim Integrated │ 5 www.maximintegrated.com Evaluates: MAXM17623 1.5V Output-Voltage Application MAXM17623 1.5V Output Evaluation Kit #Denotes RoHS compliant. Note: Indicate that you are using the MAXM17623 when contacting these component suppliers. SUPPLIER WEBSITE Murata Americas www.murata.com Panasonic Corp. www.panasonic.com TDK Corp. www.component.tdk.com Yageo www.yageo.com PART TYPE MAXM17623EVKIT# EV Kit Ordering Information Component Suppliers MAXM17623 1.5V EV Kit Bill of Materials Item Quantity Designation Description Manufacturer Part No. 1 2 C1, C6 0.1µF±10%, 10V, X7R, ceramic capacitor (0402) TDK C1005X5R1A104K 2 1 C2 47µF±20%, 8V, Tantalum capacitor (3528) Kemet T520B476M008ATE035 3 1 C3 2.2µF±10%, 10V, X7R, ceramic capacitor (0603) Murata GRM188R71A225KE15 4 1 C4 22µF±20%, 6.3V, X7R, ceramic capacitor (0805) Murata GRM21BZ70J226ME44 5 1 R1 33.2kΩ±1% resistor (0402) Yageo RC0402FR-0733K2L 6 1 R2 37.4kΩ±1% resistor (0402) Yageo RC0402FR-0737K4L 7 1 R3 100kΩ±1% resistor (0402) Panasonic ERJ-2RKF1003X 8 1 U1 MAXM17623 10pin u-SLIC Power Module Maxim MAXM17623AMB+ 9 1 PCB MAXM17623 EVKIT PCB - 10 1 JU1 Jumper pins Sullins PBC03SAAN 11 1 JU2 Jumper pins Sullins PBC02SAAN 12 2 SU1, SU2 Jumper heads Sullins NPB02SVAN-RC 13 6 EN, VIN, PGND, VOUT, PGND1, PGOOD Test Loops Weico Wire 9020 BUSS

Maxim Integrated │ 6 www.maximintegrated.com Evaluates: MAXM17623 1.5V Output-Voltage Application MAXM17623 1.5V Output Evaluation Kit JU2 MAXM17623 1.5V EV Kit Schematic

Maxim Integrated │ 7 www.maximintegrated.com Evaluates: MAXM17623 1.5V Output-Voltage Application MAXM17623 1.5V Output Evaluation Kit MAXM17623 EV Kit PCB Layout—Silk Top MAXM17623 EV Kit PCB Layout—Silk Top MAXM17623 EV Kit PCB Layout—Layer 2 Ground MAXM17623 EV Kit PCB Layout—Layer 3 Power MAXM17623 1.5V EV Kit PCB Layout Diagrams 1’’ 1’’ 1’’ 1’’

Maxim Integrated │ 8 www.maximintegrated.com Evaluates: MAXM17623 1.5V Output-Voltage Application MAXM17623 1.5V Output Evaluation Kit MAXM17623 EV Kit PCB Layout—Bottom Layer MAXM17623 EV Kit PCB Layout—Silk Bottom MAXM17623 1.5V EV Kit PCB Layout Diagrams (continued) 1’’ 1’’

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. © 2020 Maxim Integrated Products, Inc. │ 9 Evaluates: MAXM17623 1.5V Output-Voltage Application MAXM17623 1.5V Output Evaluation Kit REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 1/19 Initial release — 1 6/19 Replaced TOC01‒TOC02 and TOC12 3‒4 2 1/20 Updated the Recommended Equipment, Equipment Setup and Test Procedure, Mode of Operation, and MAXM17623 1.5V EV Kit Bill of Materials sections; updated Table 1, and TOC09, TOC11 and TOC12 1–2, 4–5

Revision History

For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.