mEZD74800A-X Series 4.5V - 75V Input, 0.3A, DC/DC Power Supply FEATURES 4.5V to 75V Wide Operating Input Over-Current Protection 0.3A Load Current Over-Temperature Protection Hiccup Short-Circuit Protection Open Design Files and BOM Over-/Under-Voltage Protection Meets EN55022 Class B Emissions ORDERING INFORMATION Input Voltage Output Voltage Output Current Part Number (V) (V) (A) mEZ Product Options: mEZD74800A-A 4.5 - 75 3.3 0.3 1. Ready-to-Use products mEZD74800A-B 4.5 - 75 5 0.3 2. Do-It-Yourself. Manufacture assistance is provided ELECTRICAL CHARACTERISTICS Input Voltage Range V higher than V by 1V 4.5 to 75V IN MIN OUT Output Voltage Set 1.7% (Typ.) Accuracy Output Voltage Ripple VIN= 48V, VOUT= 3.3V, Full Load 44mV Line Regulation V from MIN to MAX, V = 3.3V 0.5% (Typ.) IN OUT Load Regulation I from MIN to MAX, V = 3.3V 1% (Typ.) OUT OUT VOUT= 3.3V 140kHz Typical Application Circuit Switching Frequency VOUT= 5V 165kHz Efficiency vs. Load Current VIN =48V, VOUT =3.3V and 5V Short-Circuit Short Output to Ground Hiccup Mode Protection 90 Operating 85 -40 to 85C Temperature Range 80 Over-Temperature OTP 175C 75 Protection 70 Vin=48V Vout=3.3V Rise Time V from 0% to 90% 1.54ms (Typ.) OUT 65 Vin=48V Vout=5V 60 3 Calculated MTBF MIL-HDBK-217F 4185x10 hrs 55 50 0 0.1 0.2 0.3 Load Current(A) NOTE: All electrical characteristics are tested under 25C ambient temperature, V =48V unless otherwise noted. IN mEZD74800A Rev. 1.4 www.MonolithicPower.com 1 5/30/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. Efficiency (%)mEZD74800A-X Series 4.5V - 75V Input, 0.3A, DC/DC Power Supply DO-IT-YOURSELF SCHEMATIC RADIATED EMISSIONS (EN55022 Class B) 24VIN, 5VOUT 0.3A 60 55 50 EN 55022 Electric Field Strength 3 m QP 45 40 35 30 25 20 15 10 5 0 30M 50 60 80 100M 200 300 400 500 800 1G Frequency in Hz BILL OF MATERIALS Item Qty RefDes Value Description Package Manufacturer Manufacturer P/N GRM32DC72A475KE01L/ 1 1 C1 4.7F Ceramic Cap., 100V, X7S 1210 muRata C3225X7S2A475M200AB GRM21BD71A226ME44L/ 2 1 C2 22F Ceramic Cap., 10V, X7T 0805 muRata GRM21BR61A226ME51L 3 1 R1 698k Film Res., 0.5% 0402 Yageo RC0402DR-07698KL 4 1 U1 MPM3570E Synchronous Step-Down Module LGA10X10 MPS MPM3570EGLD-Z 5 1 P1 3-pin 3-pin male connector, right angle Bulk MYIC MPS010SRRA-3 6 1 PCB PCB 10x20mm mEZD74800A-B *R1=698k is for 5V output only, R1=NS in 3V3 output version. PRODUCT PACKAGE AND DIMENSIONS Pin Designation Function Pin 1 1 VIN Input Voltage 2 GND Power Ground 3 VOUT Output Voltage TOP VIEW BOTTOM VIEW NOTE: SIDE VIEW Contact factory for different sizes of the boards (Quantity>2k). mEZD74800A-A mEZD74800A-B For more information, Gerber files, and PCB layout, please contact mEZsupport monolithicpower.com mEZD74800A Rev. 1.4 www.MonolithicPower.com 2 5/30/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. Level in dB /m