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  • Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
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mEZD74800A Rev. 1.0 www.MonolithicPower.com 1 3/1/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2017 MPS. All Rights Reserved. 30M 50 60 80 100M 200 300 400 500 800 1G Level in dBµV/m Frequency in Hz EN 55022 Electric Field Strength 3 m QP 0 0.1 0.2 0.3 Efficiency (%) Load Current(A) Vin=48V Vout=3.3V Vin=48V Vout=5V Part Number Input Voltage (V) Output Voltage (V) Output Current (A) MEZD74800A-A 4.5 - 75 3.3 0.3 MEZD74800A-B 4.5 - 75 5 0.3 Input Voltage Range VIN_MIN higher than VOUT by 1V 4.5 to 75V Output Voltage Set Accuracy ±1.7% (Typ.) Output Voltage Ripple VIN = 48V, VOUT = 3.3V, Full Load 44mV Line Regulation VIN from MIN to MAX, VOUT = 3.3V ±0.5% (Typ.) Load Regulation IOUT from MIN to MAX, VOUT = 3.3V ±1% (Typ.) Switching Frequency VOUT = 3.3V 140kHz VOUT = 5V 165kHz Short-Circuit Protection Short Output to Ground Hiccup Mode Operating Temperature Range -40 to 85°C Over-Temperature Protection OTP 175°C Rise Time VOUT from 0% to 90% 1.54ms (Typ.) Calculated MTBF MIL-HDBK-217F 4185x103 hrs

FEATURES

 Over-Current Protection  Over-Temperature Protection  Open Design Files and BOM  Meets EN55022 Class B Emissions  4.5V to 75V Wide Operating Input  0.3A Load Current  Hiccup Short-Circuit Protection  Over-/Under-Voltage Protection Radiated Emissions (EN55022 Class B) 24VIN, 5VOUT @ 0.3A NOTE: All electrical characteristics are tested under 25°C ambient temperature, VIN = 48V unless otherwise noted.

ORDERING INFORMATION

4.5V - 75V Input, 0.3A, DC/DC Power Supply

ELECTRICAL CHARACTERISTICS

Efficiency vs. Load Current VIN = 48V, VOUT = 3.3V and 5V

mEZD74800A Rev. 1.0 www.MonolithicPower.com 2 3/1/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2017 MPS. All Rights Reserved. Item Qty RefDes Value Description Package Manufacturer Manufacturer P/N 1 1 C1 4.7µF Ceramic Cap., 100V, X7S 1210 muRata GRM32DC72A475K 2 1 C2 22µF Ceramic Cap., 10V, X7T 0805 muRata GRM21BD71A226ME44L 3 1 R1 698kΩ* Film Resistor, 0.5% 0402 Yageo RC0402DR-07698KL 4 1 U1 MPM3570E Synchronous Step-Down Module LGA-10 MPS MPM3570EGLD 5 1 P1 3-Pin 3-Pin Male Connecter, Right Angle Bulk TE-Connectivity 571-3-644457-3 TOP VIEW BOTTOM VIEW SIDE VIEW Pin Designation Function

1 VIN Input Voltage

2 GND Power Ground

3 VOUT Output Voltage

4.5V - 75V Input, 0.3A, DC/DC Power Supply DO-IT-YOURSELF SCHEMATIC PRODUCT PACKAGE AND DIMENSIONS VIN VIN FB MPM3570E VOUTC1 GND 5V 0.3A VOUT Inside mEZD74800 GND 4.5 to 75V *R1 = 698kΩ is for 5V output only, R1 = NS in 3V3 output version. BILL OF MATERIALS NOTE: Contact factory for different sizes of the boards (Quantity >2k). For more information, Gerber files, and PCB layout, please contact mEZsupport@monolithicpower.com