mEZD72402A Series 4.5V - 36V Input, 2A, DC/DC Power Supply FEATURES 4.5V to 36V Wide Operating Input Over-Current Protection 2A Load Current Over-Temperature Protection Hiccup Short-Circuit Protection Open Design Files and BOM 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, MEZD72402A-X 2 G: 6.5 - 36 2.5, 3.3, 5 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 Manufacture assistance is provided mEZD724xx FAMILY PRODUCTS Input Voltage Output Voltage Output Current Part Number (V) (V) (A) V V OUT 1 IN 3 1,1.2,1.5,1.8, mEZD72401A-X 4.5 - 36 1 VIN VOUT 2.5,3.3,5, 12 1,1.2,1.5,1.8, mEZD72402A-X 4.5 - 36 2 2.5,3.3,5 mEZD72402A-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 Output Voltage Ripple VIN=24V, VOUT=3.3V, Full Load 26.4mV Typical Application Circuit Line Regulation V from MIN to MAX, V =3.3V 1% (Typ.) IN OUT Load Regulation I from MIN to MAX, V =3.3V 1% (Typ.) OUT OUT Efficiency vs. Load Current VIN=24V, VOUT = 1V - 5V Switching Frequency Typical Switching Frequency 400kHz Short-Circuit Protection Short Output to Ground Hiccup Mode 95 Operating Temperature 90 -40 to 85C Range 85 Over-Temperature 80 OTP 150C Protection VOUT=1.0V 75 VOUT=1.2V Rise Time VOUT from 0% to 90% 0.75ms (Typ.) VOUT=1.5V 70 VOUT=1.8V 3 Calculated MTBF MIL-HDBK-217F 4185x10 hrs VOUT=2.5V 65 VOUT=3.3V VOUT=5V 60 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Load Current (A) NOTE: All electrical characteristics are tested under 25C ambient temperature, V =24V unless otherwise noted. IN mEZD72402A Rev. 1.4 www.MonolithicPower.com 1 2/26/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. Efficiency (%)mEZD72402A Series 4.5V - 36V Input, 2A, DC/DC Power Supply DO-IT-YOURSELF SCHEMATIC POWER DERATING V =24V, V =3.3Vand 5V IN OUT 120 C1 Natural Convection VIN L1 BST VOUT VIN 100 SW C2 R1 C3 C4 80 VOUT EN 60 DIY72402-AX 40 VCC ADD VOUT=3.3V C5 VOUT=5V 20 AGND PGND GND 0 Inside mEZD72402A-X 25 45 65 85 105 125 O Ambient Temperature ( C) BILL OF MATERIALS Item Qty RefDes Value Description Package Manufacturer Manufacturer P/N muRata 1 1 C1 0.22F Ceramic Cap., 16V, X5R 0402 GRM155R61C224KA12D 2 1 C2 4.7F Ceramic Cap., 50V, X7R 1206 muRata GRM31CR71H475KA12L GRM21BD71A226ME44L/ 3 2 C3, C4 22F Ceramic Cap., 10V, X7T/X5R 0805 muRata GRM21BR61A226ME51L 4 1 C5 1F Ceramic Cap., 10V, X5R 0402 muRata GRM155R61A105KE01D 5 1 L1* 5.6H Idc 2.6A, DCR 65.7m Ohm 5.5x5x3mm Panasonics ETQP3M6R8KVP 6 1 R1 499k Film Res., 5% 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 DIY72402-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) 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 mEZD72402A Rev. 1.4 www.MonolithicPower.com 2 2/26/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. Output Power (%)