mEZD72401A Series 4.5V - 36V Input, 1A, DC/DC Power Supply FEATURES Over-Current Protection 4.5V to 36V Wide Operating Input Over-Temperature Protection 1A Load Current Open Design Files and BOM Hiccup Short-Circuit Protection Over-/Under-Voltage Protection ORDERING INFORMATION Input Voltage Output Voltage Output Current Part Number (V) (V) (A) A - F: 4.5 - 36 1, 1.2, 1.5, 1.8, 1 MEZD72401A-X G: 6.5 - 36 2.5, 3.3, 5,12 mEZ Product Options: Output Voltage Options 1. Ready-to-Use products A = 1.0V B = 1.2V C = 1.5V D = 1.8V 2. Do-It-Yourself. E = 2.5V F = 3.3V G = 5.0V H = 12V Manufacture assistance is provided mEZD724xx FAMILY PRODUCTS Input Voltage Output Voltage Output Current Part Number (V) (V) (A) 1,1.2,1.5,1.8, V V OUT IN 1 3 mEZD72401A-X 4.5-36 1 2.5,3.3,5, 12 VIN VOUT 1,1.2,1.5,1.8, mEZD72402A-X 4.5-36 2 2.5,3.3,5 mEZD72401A-x 10F 2.2F GND ELECTRICAL CHARACTERISTICS 2 Input Voltage Range VIN MIN higher than VOUTby 1V 4.5 or 6.5 to 36V Output Voltage Set 2.5% (Typ.) Accuracy Typical Application Circuit Output Voltage Ripple VIN=24V, VOUT=3.3V, Full Load 20mV Efficiency vs. Load Current Line Regulation V from MIN to MAX, V =3.3V 1% (Typ.) IN OUT VIN=24V, VOUT = 1V - 12V Load Regulation IOUT from MIN to MAX, VOUT=3.3V 1% (Typ.) Switching Frequency Typical Switching Frequency 400kHz Short-Circuit Protection Short Output to Ground Hiccup Mode Operating Temperature -40 to 85C Range Over-Temperature OTP 150C Protection Rise Time VOUT from 0% to 90% 0.75ms (Typ.) 3 Calculated MTBF MIL-HDBK-217F 4185x10 hrs NOTE: All electrical characteristics are tested under 25C ambient temperature, V =24V unless otherwise noted. IN mEZD72401A Rev. 1.4 5www.MonolithicPower.com 1 2/26/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. mEZD72401A Series 4.5V - 36V Input, 1A, DC/DC Power Supply DO-IT-YOURSELF SCHEMATIC POWER DERATING VIN=24V, VOUT=3.3Vand 5V 120 C1 Natural Convection VIN L1 100 BST VOUT VIN SW C2 R1 C3 C4 80 VOUT EN 60 DIY72401-AX 40 VOUT=3.3V VCC ADD C5 VOUT=5V 20 AGND PGND GND 0 25 45 65 85 105 125 Inside mEZD72401A-X O Ambient Temperature ( C) BILL OF MATERIALS Item Qty RefDes Value Description Package Manufacturer Manufacturer P/N GRM155R61C224KA12D 1 1 C1 0.22F Ceramic Cap., 16V, X5R 0402 muRata GRM31CR71H475KA12L 2 1 C2 4.7F Ceramic Cap., 50V, X7R 1206 muRata GRM21BD71A226ME44L/ 3 2 C3, C4 22F Ceramic Cap., 10V, X7T/X5R 0805 muRata GRM21BR61A226ME51L GRM155R61A105KE01D 4 1 C5 1F Ceramic Cap., 10V, X5R 0402 muRata 5 1 L1* 10H Idc 2.3A, DCR 96m Ohm 5.5x5.2mm Panasonics ETQP3M100KVP 6 1 R1 499k Film Res., 5s% 0402 Yageo RC0402JR-07499KL 7 1 P1 3-Pin 3-Pin Male Connector, Right Angle Bulk MYIC MPS010SRRA-3 8 1 U1 Synchronous Step-Down Converter QFN-16 MPS DIY72401-AX** * Or equivalent. ** -X Output voltage options (A: 1.0V, B: 1.2V, C: 1.5V, D: 1.8V, E: 2.5V, F: 3.3V, G: 5.0V, H: 12V) PRODUCT PACKAGE AND DIMENSIONS Pin Designation Function 1 VIN Input Voltage 2 GND Power Ground 3 VOUT Output Voltage 1 2 3 TOP VIEW BOTTOM VIEW NOTE: Contact factory for different sizes of the boards (Quantity>2k). For more information, Gerber files, and PCB layout, please contact mEZsupport monolithicpower.com SIDE VIEW mEZD72401A Rev. 1.4 5www.MonolithicPower.com 2 2/26/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. Output Power (%)