MAXM17537EVKIT

MAXM17537EVKIT MAXIM | Alldatasheet

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Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit General Description The Himalaya series of voltage regulator ICs and power modules enable cooler, smaller, and simpler power- supply solutions. The MAXM17537EVKIT# 15V-output evaluation kit (EV kit) is a demonstration circuit of the MAXM17537 60V, 3A high-efficiency, current-mode, synchronous step-down DC-DC switching power module. The EV kit operates over a wide input-voltage of 19V to 60V and provides up to 3A load current with a 15V-output voltage. The EV kit is programmed to switch at a frequency of 700kHz. The module is simple to use and easily configurable with minimal external components. It features cycle-by-cycle peak current-limit protection, undervoltage lockout (EN/UVLO), and thermal shutdown. The EV kit includes the compact, 29-pin, 15mm x 9mm x 4.32mm SiP package MAXM17537 module installed and is rated to operate over the full industrial -40°C to 125°C temperature range. The MAXM17537 module data sheet provides a complete description of the part that should be read in conjunction with this data sheet prior to operating the EV kit. For full module features, benefits and parameters, refer to the MAXM17537 data sheet. Benefits and Features

• Wide 19V to 60V Input Range
• Highly Integrated Solution with Built-In Shielded Inductor
• Programmed 15V Output, Up to 3A Output Current
• 700kHz Switching Frequency
• MAXM17537 Offers High 95.6% Efficiency (VIN = 24V, VOUT = 15V, IOUT = 2A)
• All Ceramic Capacitors and Ultra-Compact Solution
• Selectable PWM, DCM, and PFM Modes
• Programmable 4ms Soft-Start Time and Prebias Startup
• Open-Drain RESET Output Pulled Up to 5V V CC
• Programmable EN/UVLO Threshold
• Provision for External Frequency Synchronization
• Hiccup Over Current Protection (OCP)
• Overtemperature Protection (OTP)
• -40°C to +125°C Industrial Temperature Range
• Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions 319-100441; Rev 0; 10/19 Ordering Information appears at end of data sheet. Click here for production status of specific part numbers.

• MAXM17537EVKIT# evaluation kit
• 19V to 60V DC, 3A power supply
• Dummy load capable of sinking 3A
• Digital voltmeter (DVM)
• 100MHz dual-trace oscilloscope Equipment Setup and Procedure The MAXM17537EVKIT# is fully assembled and tested. Follow the steps below to verify board operation. Caution: Do not turn on the power supply until all connections are completed. 1) Set the power supply at a voltage between 19V and 60V. Disable the power supply. 2) Connect the positive and negative terminals of the power supply to VIN and PGND PCB pads, respectively. 3) Connect the positive and negative terminals of the 3A load to OUT and PGND PCB pads, respectively, and then set the load to 0A. 4) Connect the DVM across the OUT PCB pad and the PGND PCB pad. 5) Verify that shunts are not installed on jumper J1. See Table 1 for details. 6) Select the shunt position on jumper J2 according to the intended mode of operation. See Table 2 for details. 7) Enable the input power supply. 8) Verify the DVM display 15V. 9) Increase the load up to 3A to verify the output voltage is 15V using DVM. Detailed Description The MAXM17537EVKIT# is a proven circuit to demon - strate the high-voltage, high-efficiency, and compact-size solution of the MAXM17537 synchronous step-down DC-DC power module. The output voltage is preset to 15V to operate from 19V to 60V input and provides up to 3A load current. The optimal frequency is set at 700kHz to maximize efficiency and minimize component size. The EV kit includes five test points: TP1 for monitoring the VCC, TP2 for monitoring the RESET, TP3 for measuring the LX voltage, TP4 for monitoring the DL voltage, and TP5 for measuring the BST voltage. Soft-Start Input (SS) The MAXM17537 module implements adjustable soft- start operation to reduce inrush current. A capacitor con - nected from the SS pin to SGND programs the soft-start time. The selected output capacitance (C SEL) and the output voltage (V OUT) determine the minimum required soft-start capacitor as follows: CSS ≥ 28 x 10-6 x CSEL x VOUT The soft-start time (t SS) is related to the capacitor con - nected at SS (CSS) by the following equation: tSS = CSS/5.55 where t SS is in ms and C SS is in nF. For example, to program a 4ms soft-start time, a 22nF capacitor should be connected from the SS pin to SGND. Regulator Enable/Undervoltage- Lockout Level (EN/UVLO) The EV kit offers an adjustable input undervoltage-lockout level by resistor-dividers connecting between the IN, EN/ UVLO, and SGND pins. For normal operation, a shunt should not be installed across pins 1-2 on J1 to enable the output through an internal pullup 3.32MΩ resistor from the EN/UVLO pin to the IN pin. To disable the output, install the shunt across pins 1-2 on J1 to pull the EN/UVLO pin to SGND. See Table 1 for J1 setting details. The EV kit also provides an R3 resistor to program a UVLO thresh - old voltage at which an input-voltage level device turns on. The R3 resistor can be calculated by the following equation: R3 = 3320 x 1.215/(V INU – 1.215) where V INU is the input voltage at which the device is required to turn on, and R3 is in kΩ.

Table 1. EN/UVLO Enable/Disable

the PWM, PFM and DCM modes of operation. MAXM17537 module data sheet for further information. limits the noise injected back into the input power source. in radiated emissions below CISPR22 Class B limits. oscillations caused by long input cables. Table 2. MODE/SYNC Description (J2) Table 3. EXTVCC Configuration (J3) *Default position. *Default position.

Maxim Integrated │ 4 www.maximintegrated.com Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit MAXM17537EVKIT# Performance Report 100 0 1000 2000 3000 EFFICIENCY (%) LOAD CURRENT (mA) EFFICIENCY vs. LOAD CURRENT (15V OUTPUT, PWM MODE, f SW = 700kHz) toc01 VIN = 60V VIN = 48V VIN = 36V VIN = 24V VIN = 19V 15.00 15.02 15.04 15.06 15.08 15.10 15.12 15.14 15.16 15.18 15.20 1 10 100 1000 OUTPUT VOLTAGE (V) LOAD CURRENT (mA) OUTPUT VOLTAGE vs. LOAD CURRENT (15V OUTPUT, PWM MODE, f SW = 700kHz) toc04 VIN = 36V VIN = 48V VIN = 60V VIN = 19V VIN = 24V toc07 4ms/div VOUT POWER-UP AND -DOWN THROUGH EN/UVLO (VIN = 24V, VOUT = 15V, IOUT = 3A PWM MODE, MODE = SGND) VLX 10V/div 5V/div VEN/UVLO VRESET 10V/div 5V/div toc08 400µs/div VOUT LOAD TRANSIENT (VIN = 24V, VOUT = 15V, IOUT = 0A TO 1.5A PWM MODE, MODE = SGND) IOUT 1A/div 200mV/div (AC-COUPLED)- 100 1 10 100 1000 EFFICIENCY (%) LOAD CURRENT (mA) VIN = 19V EFFICIENCY vs. LOAD CURRENT (15V OUTPUT, DCM MODE, fSW = 700kHz) toc03 VIN = 24V VIN = 36V VIN = 48V VIN = 60V toc06 1µs/div VOUT STEADY-STATE SWITCHING WAVEFORMS (VIN = 24V, VOUT = 15V, IOUT = 3A PWM MODE, MODE = SGND) VLX 10V/div 10mV/div (AC- COUPLED) 100 10 100 1000 EFFICIENCY (%) LOAD CURRENT (mA) EFFICIENCY vs. LOAD CURRENT (15V OUTPUT, PFM MODE, fSW = 700kHz) toc02 VIN = 24V VIN = 36V VIN = 48V VIN = 60V VIN = 19V 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 1 10 100 1000 OUTPUT VOLTAGE (V) LOAD CURRENT (mA) OUTPUT VOLTAGE vs. LOAD CURRENT (15V OUTPUT, PFM MODE, f SW = 700kHz) toc05 VIN = 36V VIN = 48V VIN = 60V VIN = 19V VIN = 24V

Maxim Integrated │ 5 www.maximintegrated.com Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit toc11 400µs/div VOUT LOAD TRANSIENT (VIN = 24V, VOUT = 15V, IOUT = 25mA TO 1.5A DCM MODE, MODE = VCC) IOUT 1A/div 500mV/div (AC-COUPLED) toc09 400µs/div VOUT LOAD TRANSIENT (VIN = 24V, VOUT = 15V, IOUT = 1.5A TO 3A PWM MODE, MODE = SGND) IOUT 1A/div 200mV/div (AC-COUPLED) toc14 FREQUENCY (MHz) MAGNITUDE (dBµV/m) 100 100030 CONDITION : VIN = 24V, VOUT = 15V, IOUT = 3A FROM MAXM17537EVKIT# RADIATED EMISSION PLOT (EMI FILTER: C16 = 150pF, C2 = C3 = 220pF, L1 = SHORT, C18 = C19 = OPEN) CISPR-22 CLASS B QP LIMIT VERTICAL SCAN HORIZONTAL SCAN -40 -20 100 120GAIN (dB) FREQUENCY (Hz) -40 103 104 105 BODE PLOT (VIN = 24V, VOUT = 15V, IOUT = 3A) toc12 fCR = 38.3kHz, PHASE MARGIN = 61.8° GAIN PHASE(°) 120 -20 PHASE 100 toc10 1ms/div VOUT LOAD TRANSIENT (VIN = 24V, VOUT = 15V, IOUT = 25mA TO 1.5A PFM MODE, MODE = OPEN) IOUT 1A/div 500mV/div (AC-COUPLED) MAXM17537EVKIT# Performance Report (continued)

Maxim Integrated │ 6 www.maximintegrated.com Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit #Denotes RoHS compliance. Note: Indicate that you are using the MAXM17537 when contacting these component suppliers. SUPPLIER WEBSITE TDK Corp. www.tdk.com Murata Americas www.murata.com Panasonic Corp. www.panasonic.com Vishay www.vishay.com Coilcraft www.coilcraft.com PART TYPE MAXM17537EVKIT# EV Kit Ordering InformationComponent Suppliers MAXM17537EVKIT# Bill of Materials ITEM QTY REF DES VAR STATUS MAXINV MFG PART # MANUFACTURER VALUE DESCRIPTION 1 4 BST, DL, LX, TP1 Pref 02-TPMINI5000-00 5000 KEYSTONE N/A TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN; BOARD HOLE = 0.04IN; RED; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; RECOMMENDED FOR BOARD THICKNESS = 0.062IN; NOT FOR COLD TEST 2 2 C2, C3 Pref EC111000001494 C1608C0G2A221J080AA TDK 220PF CAP; SMT (0603); 220PF; 5%; 100V; C0G; CERAMIC CHIP 3 4 C4, C7, C18, C19 Pref 20-004U7-08C GRM31CZ72A475KE11 MURATA 4.7µF CAP; SMT (1206); 4.7UF; 10%; 100V; X7R; CERAMIC CHIP ; NOTE:PURCHASE DIRECT FROM THE MANUFACTURER 4 4 C8, C9, C15, C17 Pref 20-000U1-01 CC0603KRX7R0BB104; GRM188R72A104KA35; GCJ188R72A104KA01; HMK107B7104KA; 06031C104KAT2A YAGEO; MURATA; MURATA; TAIYO YUDEN; AVX 0.1µF CAPACITOR; SMT (0603); CERAMIC CHIP; 0.1µF; 100V; TOL = 10%; TG = -55°C TO +125°C; TC = X7R 5 1 C10 Pref 20-002P2-N6 06035J2R2BBT; GRM39C0G2R2B50V AVX;MURATA 2.2PF CAPACITOR; SMT (0603); CERAMIC CHIP; 2.2PF; 50V; TOL = ±0.1PF; MODEL = ACCU-P; TG = -55°C TO +125°C 6 1 C11 Pref 20-0U022-91 C0603C223K5RAC; GRM188R71H223K; C1608X7R1H223K080AA; GCJ188R71H223KA01 KEMET; MURATA; TDK; MURATA 0.022µF CAPACITOR; SMT (0603); CERAMIC CHIP; 0.022UF; 50V; TOL = 10%; TG = -55°C TO +125°C; TC = X7R 7 2 C13, C14 Pref 20-0010U-B40 GRM32ER71H106KA12; CL32B106KBJNNN; UMJ325KB7106KMH; 12105C106K4Z2A MURATA; SAMSUNG ELECTRONICS; TAIYO YU 10µF CAPACITOR; SMT (1210); CERAMIC CHIP; 10µF; 50V; TOL = 10%; TG = -55°C TO +125 DEGC; TC = X7R 8 1 C16 Pref EC111000001357 C1005C0G2A151J050BA TDK 150PF CAP; SMT (0402); 150PF; 5%; 100V; C0G; CERAMIC CHIP 9 1 C24 Pref 20-0047U-A17 EEE-FK1K470P PANASONIC 47UF CAPACITOR; SMT (CASE_G); ALUMINUM-ELECTROLYTIC; 47µF; 80V; TOL = 20% 10 1 J1 Pref 01-PBC02SABN2P-21 PBC02SABN SULLINS PBC02SABN CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 2PINS 11 2 J2, J3 Pref 01-PBC03SABN3P-21 PBC03SABN SULLINS PBC03SABN CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 3PINS 12 4 J4, J6, J7, TP5 Pref 02-57541P-01 575-4 KEYSTONE 575-4 RECEPTACLE; JACK; BANANA; 0.203IN [5.2MM] DIA X 0.218IN [5.5MM] L; 0.203D/0.218L; NICKEL PLATED BRASS 13 4 MH1-MH4 Pref 02-MS440038P-02 91772A108; PHILLIPS-PAN_4-40X3/8IN; PMSSS4400038PH; 9901 GENERIC PART N/A MACHINE SCREW; PHILLIPS; PAN; 4-40; 3/8IN; 18-8 STAINLESS STEEL 14 4 MH1-MH4 Pref 02-SO440012H-01 MCH_SO_F_HEX_4-40X1/2 GENERIC PART N/A STANDOFF; FEMALE-THREADED; HEX; 4-40; 1/2IN; ALUMINUM 15 4 OUT, PGND, PGND1, VIN Pref 01-9020BUSS20AWG-00 9020 BUSS WEICO WIRE MAXIMPAD EVK KIT PARTS; MAXIM PAD; WIRE; NATURAL; SOLID; WEICO WIRE; SOFT DRAWN BUS TYPE-S; 20AWG

Maxim Integrated │ 7 www.maximintegrated.com Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit MAXM17537EVKIT# Bill of Materials (continued) ITEM QTY REF DES VAR STATUS MAXINV MFG PART # MANUFACTURER VALUE DESCRIPTION 16 1 R1 Pref 80-0806K-19 ERJ-3EKF8063 PANASONIC 806K RES; SMT (0603); 806K; 1%; ±100PPM/°C; 0.1W 17 1 R2 Pref 80-051K1-24 CRCW060351K1FK; ERJ-3EKF5112 VISHAY DALE; PANASONIC 51.1K RESISTOR; 0603; 51.1K; 1%; 100PPM; 0.10W; THICK FILM 18 1 R3 Pref 80-0232K-24 CRCW0603232KFK VISHAY DALE 232K RESISTOR, 0603, 232KΩ, 1%, 100PPM, 0.1W, THICK FILM 19 1 R4 Pref 80-025K5-24 CRCW060325K5FK VISHAY DALE 25.5K RESISTOR; 0603; 25.5KΩ; 1%; 100PPM; 0.10W; THICK FILM 20 1 R5 Pref 80-0010K-24 CRCW060310K0FK; ERJ-3EKF1002 VISHAY DALE; PANASONIC 10K RESISTOR; 0603; 10K; 1%; 100PPM; 0.10W; THICK FILM 21 1 R6 Pref 80-0000R-27 CRCW06030000ZS; MCR03EZPJ000; ERJ-3GEY0R00 VISHAY DALE; ROHM; PANASONIC 0 RESISTOR; 0603; 0Ω; 0%; JUMPER; 0.10W; THICK FILM 22 3 SU1-SU3 Pref 02-JMPFS1100B-00 S1100-B;SX1100-B; STC02SYAN KYCON; KYCON; SULLINS ELECTRONICS CORP. SX1100-B TEST POINT; JUMPER; STR; TOTAL LENGTH = 0.24IN; BLACK; INSULATION = PBT; PHOSPHOR BRONZE CONTACT = GOLD PLATED 23 1 U1 Pref 00-SAMPLE-01 MAXM17537 MAXIM MAXM17537 EVKIT PART - IC; MAXM17537; LGA29-3EP; PACKAGE OUTLINE NUMBER: 21-100177; PACKAGE LAND PATTERN: 90-100055 24 1 VCC Pref 02-TPCOMP5005-00 5005 KEYSTONE N/A TEST POINT; PIN DIA = 0.125IN; TOTAL LENGTH = 0.35IN; BOARD HOLE = 0.063IN; RED; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; RECOMMENDED FOR BOARD THICKNESS = 0.062IN 25 1 PCB - EPCBM17537 MAXM17537 MAXIM PCB PCB:MAXM17537 TOTAL 51 ITEM QTY REF DES VAR STATUS MAXINV MFG PART # MANUFACTURER VALUE DESCRIPTION 1 1 C1 DNP EC111000001494 C1608C0G2A221J080AA TDK 220PF CAP; SMT (0603); 220PF; 5%; 100V; C0G; CERAMIC CHIP 2 5 C5, C6, C20-C22 DNP 20-004U7-08C GRM31CZ72A475KE11 MURATA 4.7UF CAP; SMT (1206); 4.7UF; 10%; 100V; X7R; CERAMIC CHIP ; NOTE:PURCHASE DIRECT FROM THE MANUFACTURER 3 1 C12 DNP 20-0010U-B40 GRM32ER71H106KA12; CL32B106KBJNNN; UMJ325KB7106KMH; 12105C106K4Z2A MURATA; SAMSUNG ELECTRONICS; TAIYO YU 10UF CAPACITOR; SMT (1210); CERAMIC CHIP; 10µF; 50V; TOL = 10%; TG = -55°C TO +125°C; TC = X7R 4 1 C23 DNP 20-000U1-01 CC0603KRX7R0BB104; GRM188R72A104KA35; GCJ188R72A104KA01; HMK107B7104KA; 06031C104KAT2A YAGEO; MURATA; MURATA; TAIYO YUDEN; AVX 0.1UF CAPACITOR; SMT (0603); CERAMIC CHIP; 0.1µF; 100V; TOL = 10%; TG = -55°C TO +125°C; TC = X7R 5 1 L1 DNP 50-008U2-0FF XAL5050-822ME COILCRAFT 8.2UH INDUCTOR; SMT; SHIELDED; 8.2UH; TOL = ±20%; 4.5A TOTAL 9 ITEM QTY REF DES Var Status MAXINV MFG PART # MANUFACTURER VALUE DESCRIPTION TOTAL 0 DO NOT PURCHASE(DNP) PACKOUT (These are purchased parts but not assembled on PCB and will be shipped with PCB)

Maxim Integrated │ 8 www.maximintegrated.com Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit MAXM17537EVKIT# Schematic Diagram 0.1UF OPENOPENOPEN 4.7UF 10K 2.2PF 220PF MAXM17537 VCC VCC VCC OPEN OPEN OPEN OPEN OPEN OPEN 51.1K 0.022UF 4.7UF 0.1UF 0.1UF 4.7UF 4.7UF 220PF 4.7UF 10UF 4.7UF4.7UF 10UF 0.1UF 8.2UH 10UF 232K 4.7UF4.7UF 220PF47UF 25.5K 150PF RESET/ EN/UVLO EXTVCC MODE/SYNC PGND PGND PGND OUT VIN 0.1UF 806K R6 R1 C19 C20 C21 BST C16 C14 C15 OUT PGND VIN C17 C18 C22 C23 C24 C1 C10 C11 VCC LX C12 C13 DL U1R4 OUT VIN VIN OUT OUT 1 2 1 2 EP1 EP2 EP3 OUT OUT MODE/SYNC IN PGND DL OUT OUT OUT OUT PGND PGND PGND PGND PGNDPGND PGND SGND PGND PGND PGND LX BST EXTVCC PGND IN EN/UVLO SS FB CF SGND RT RESET VCC OUT

Maxim Integrated │ 9 www.maximintegrated.com Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit MAXM17537 EV Kit—Top Silkscreen MAXM17537 EV Kit—Layer 2 MAXM17537 EV Kit—Top Layer MAXM17537EVKIT# PCB Layout Diagrams

Maxim Integrated │ 10 www.maximintegrated.com Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit MAXM17537 EV Kit—Layer 3 MAXM17537 EV Kit—Bottom Silkscreen MAXM17537 EV Kit—Bottom Layer MAXM17537EVKIT# PCB Layout Diagrams (continued)

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. │ 11 Evaluates: MAXM17537 15V OutputMAXM17537 15V Output Evaluation Kit REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 10/19 Initial release —

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