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mEZD71202A Rev. 1.1 www.MonolithicPower.com 1 3/8/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2017 MPS. All Rights Reserved. Manufacture Yourself Available Design Files Available for Manufacture Efficiency (%) Load Current (A) VOUT=1.0V VOUT=1.2V VOUT=1.5V VOUT=1.8V VOUT=2.5V VOUT=3.3V VOUT=5V Part Number Input Voltage (V) Output Voltage (V) Output Current (A) MEZD71202A-X A - F: 4.5 - 24 6.5 - 24 1, 1.2, 1.5, 1.8, 2.5, 3.3, 5 2 Output Voltage Options A = 1.0V E = 2.5V B = 1.2V F = 3.3V C = 1.5V G = 5.0V D = 1.8V Part Number Input Voltage (V) Output Voltage (V) Output Current (A) 2.5, 3.3, 5 1.2 2.5, 3.3, 5 2 mEZD71203A-X 5 - 16 1, 1.2, 1.5, 1.8, 2.5, 3.3 3 mEZD71210A-X 4.5 - 17 1.0 10 Input Voltage Range VIN_MIN higher than VOUT by 1V 4.5 or 6.5 to 24V Output Voltage Set Accuracy ±2.5% (Typ.) Output Voltage Ripple VIN = 12V, VOUT = 3.3V, Full Load 33.6mV Line Regulation VIN from MIN to MAX, VOUT = 3.3V ±1% (Typ.) 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 Range -40 to 85°C Over-Temperature Protection OTP 150°C Rise Time VOUT from 0% to 90% 0.75ms (Typ.) Calculated MTBF MIL-HDBK-217F 4185x103 hrs

FEATURES

 Over-Current Protection  Over-Temperature Protection  Open Design Files and BOM  4.5V to 24V Wide Operating Input  2A Load Current  Hiccup Short-Circuit Protection  Over-/Under-Voltage Protection Power Derating VIN = 12V, VOUT = 3.3V and 5V Efficiency vs. Load Current VIN = 12V, VOUT = 1V - 5V NOTE: All electrical characteristics are tested under 25°C ambient temperature, VIN = 12V unless otherwise noted.

ORDERING INFORMATION

4.5V - 24V Input, 2A, DC/DC Power Supply 100 120 25 45 65 85 105 125 Output Power (%) Ambient Temperature (OC) VOUT=3.3V VOUT=5V

ELECTRICAL CHARACTERISTICS

mEZD71202A Rev. 1.1 www.MonolithicPower.com 2 3/8/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2017 MPS. All Rights Reserved. MPDIY71202A VIN ADD BST SW VOUTVCC PGNDAGND EN L1VIN VOUT GND Inside mEZD71202A-X Item Qty RefDes Value Description Package Manufacturer Manufacturer P/N 1 1 C1 0.22µF Ceramic Cap., 16V, X5R 0402 WE 885012105017 2 1 C2 4.7µF Ceramic Cap., 50V, X7R 1206 WE 885012208094 3 2 C3, C4 47µF Ceramic Cap., 10V, X5R 0805 WE 885012107011 4 1 C5 1µF Ceramic Cap., 10V, X5R 0402 WE 885012105012 5 1 L1 3.3µH Idc 4.1A, DCR 38mΩ 5.5x5.2mm WE 74437336033 6 1 R1 499kΩ Film Res., 5% 0402 Yageo RC0402JR-07499KL 7 1 P1 3-Pin 3-Pin Male Connector, Right Angle Bulk TE- Connectivity 571-3-644457-3 8 1 U1 MPDIY71202A Synchronous Step-Down Converter QFN-16 MPS MPDIY71202A TOP VIEW BOTTOM VIEW SIDE VIEW Pin Designation Function

1 VIN Input Voltage

2 GND Power Ground

3 VOUT Output Voltage

4.5V - 24V Input, 2A, DC/DC Power Supply DO-IT-YOURSELF SCHEMATIC PRODUCT PACKAGE AND DIMENSIONS NOTE: Contact factory for different sizes of the boards (Quantity >2k). For more information, Gerber files, and PCB layout, please contact mEZsupport@monolithicpower.com BILL OF MATERIALS