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Monolithic Power Systems Inc. MEZD71203A-A
- Part No.:
- MEZD71203A-A
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 3-SIP Module
- Datasheet:
-
MEZD71203A-A.pdf
- Description:
- DC DC CONVERTER 1V
- Quantity:
- Payment:
- Shipping:
Inventory:3,764
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Product details
Overview
mEZD71203A-A from Monolithic Power Systems is a ready-to-use, 3A synchronous step-down DC/DC power supply module with fixed 1.0V output, 5–16V input range, FCQFN3x3-16 package, and hiccup-mode short-circuit protection - deployed in industrial control power rails and FPGA core supplies.
For engineers reviewing the mEZD71203A-A datasheet, mEZD71203A-A pinout, mEZD71203A-A application, or mEZD71203A-A equivalent, key selection criteria include verified 1.0V ±2.5% output accuracy, 400kHz switching frequency, -40°C to +85°C operating range, hiccup-mode fault response, and board-level thermal derating behavior at full load.
Technical Context
This module integrates a controller, MOSFETs, and compensation into a single FCQFN3x3-16 package, delivering regulated 1.0V output from unregulated 5–16V inputs. It uses constant-on-time (COT) control for fast transient response and operates without external loop compensation.
Input voltage must exceed output by ≥1V; line regulation is ±1% over full input range at 3.3V output (typical), and load regulation is ±1% across 0–3A at 3.3V. Output ripple is 30.4mV (typ.) under 12V input, 3.3V/3A conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 16V - supports 12V rail systems and wide-input industrial supplies |
| Output Voltage | 1.0V (fixed, option A) - matches low-voltage FPGA/core logic I/O requirements |
| Max Output Current | 3A continuous - sufficient for mid-power SoC or microcontroller core domains |
| Switching Frequency | 400kHz (typ.) - enables compact external filter design with standard 3.3µH inductors |
| Output Accuracy | ±2.5% (typ.) - ensures stable operation within 1.0V ±25mV tolerance band |
| Short-Circuit Response | Hiccup mode - limits average power dissipation during sustained fault conditions |
| Thermal Shutdown | 150°C (OTP trip) - protects internal FETs and bond wires under overload or poor airflow |
Pinout & Package
Package: FCQFN3x3-16 (3mm × 3mm × 1.0mm, exposed thermal pad, RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Power Supply | Accepts 5–16V unregulated input; requires local 0.22µF ceramic decoupling |
| 2 (GND) | Power Ground | Primary return path for high-current input and output loops; connects to thermal pad |
| 3 (VOUT) | Regulated Output | Delivers 1.0V/3A; requires 22µF ceramic output capacitance per side for stability |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Synchronous Buck Topology | Eliminates need for external high-side/low-side MOSFETs and gate drivers |
| Open Design Files & BOM | Full Gerber, schematic, and validated bill-of-materials available for layout reuse |
| Wide Input Range (5–16V) | Supports direct connection to 12V industrial bus without pre-regulation stage |
| Hiccup Short-Circuit Protection | Auto-recovery behavior prevents thermal runaway during accidental output shorts |
| Thermal Derating Curve | Rated 3A up to 85°C ambient with natural convection; derates linearly above 65°C |
Applications
| Industrial PLC I/O Power | FPGA Core Supply |
|---|---|
Use Scenario: Powering isolated digital I/O modules in programmable logic controllers with 12V backplane input. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 12V bus to 1.0V for interface ASICs and level-shifters. Use Value: Delivers stable 1.0V ±2.5% under dynamic load steps up to 2A/µs, minimizing logic errors in real-time control loops. | Use Scenario: Supplying core voltage to Xilinx Artix-7 or Intel Cyclone V FPGA banks requiring tight 1.0V regulation. IC Role / Device Role / Timing Role: Fixed-output buck module replacing discrete controller+MOSFET solutions for simplified layout and faster time-to-test. Use Value: Achieves 89% peak efficiency at 1.0V/2A (VIN=12V), reducing board-level heat density in dense FPGA carrier designs. |
| Embedded Vision Sensor Hub | Medical Diagnostic Imaging Subsystem |
Use Scenario: Powering image signal processors (ISPs) and MIPI CSI-2 transceivers in edge vision cameras. IC Role / Device Role / Timing Role: Low-noise, hiccup-protected 1.0V source for noise-sensitive analog front-end and pixel processing blocks. Use Value: 30.4mVpp output ripple at full load meets ISP analog supply noise floor requirements (<50mVpp) without added LC filtering. | Use Scenario: Providing core power to ARM Cortex-M7-based diagnostic subsystems in portable ultrasound units. IC Role / Device Role / Timing Role: Reliable 1.0V supply with OTP and hiccup protection for safety-critical firmware execution environments. Use Value: Validated -40°C to +85°C operation ensures uninterrupted boot and runtime performance across clinical temperature ranges. |
Availability
mEZD71203A-A is available at Aetrix Electronics and suitable for industrial PLC I/O power, FPGA core supplies, embedded vision sensor hubs, and medical diagnostic imaging subsystems requiring stable component supply through legacy design cycles.
Supply support for mEZD71203A-A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs and modules, headquartered in Kirkland, WA, with global design and support infrastructure.
The mEZD71203A series belongs to MPS's mEZ® family of fully integrated, open-design DC/DC power modules - engineered for rapid prototyping and production-ready power delivery in space-constrained industrial and embedded applications.
FAQ
Is mEZD71203A-A still in active production?
No - mEZD71203A-A is End-of-Life (EOL) as stated in the official revision 1.3 datasheet. Monolithic Power Systems recommends migrating to MPM3530 for new designs. Aetrix Electronics maintains limited legacy stock for existing production continuity but does not offer long-term supply assurance.
What is the thermal pad connection requirement for FCQFN3x3-16?
The exposed thermal pad on the underside of the mEZD71203A-A must be soldered to a minimum 100 mm² copper pour with ≥4 thermal vias (0.3mm diameter) connecting to inner ground planes. This configuration achieves ≤35°C/W junction-to-ambient thermal resistance under natural convection.
Can output voltage be adjusted externally?
No - mEZD71203A-A has a factory-trimmed fixed 1.0V output (option A). It lacks feedback pins or resistor-divider programming capability. For adjustable outputs, consider mEZD71203A-B (1.2V) or other variants in the same family with different suffixes.
Does this module require external compensation components?
No - the mEZD71203A-A uses Monolithic Power Systems' proprietary constant-on-time (COT) control architecture, which eliminates the need for external compensation networks. Stability is ensured with the specified 22µF ceramic output capacitors per side.
What is the startup time from EN assertion to regulated VOUT?
From EN pin rising to 90% of final 1.0V output is 0.8ms (typical), measured at room temperature with 12V input and 3.3V output load condition. Startup delay remains consistent across all output voltage options in the mEZD71203A series.
How does hiccup-mode protection behave during sustained short circuits?
Under sustained output short, the module shuts down for ~500ms, then attempts restart. If fault persists, it repeats the cycle indefinitely - limiting average power dissipation to <0.5W and preventing thermal damage to internal MOSFETs or package interconnects.
Is the BOM provided in the datasheet RoHS-compliant and lead-free?
Yes - all components listed in the official Bill of Materials (including Murata GRM155R61C224KA12D, Panasonic ETQP3M3R3KVP, and Yageo RC0402FR-07499KL) are RoHS 2015/863 compliant and lead-free (Pb-free termination, JEDEC J-STD-020 moisture sensitivity level 3).
MEZD71203A-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 3-SIP Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Linear Regulator Replacement
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 5V
- Voltage - Input (Max):
- 16V
- Voltage - Output 1:
- 1V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 3A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, OTP, OVP, SCP, UVLO
- Operating Temperature:
- -40°C ~ 85°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MEZD71203A-A FAQ
1.How can I place an order for MEZD71203A-A through Aetrix?
Please submit a Request for Quotation (RFQ) for MEZD71203A-A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MEZD71203A-A reliable?
The price and inventory of MEZD71203A-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEZD71203A-A is usually 5 days.
3.What payment methods are accepted for MEZD71203A-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEZD71203A-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEZD71203A-A?
MEZD71203A-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEZD71203A-A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MEZD71203A-A?
For technical support, including MEZD71203A-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEZD71203A-A requirements.
6.How does Aetrix verify that MEZD71203A-A is sourced from the original manufacturer or authorized distributors?
All MEZD71203A-A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MEZD71203A-A meets industry standards.
7.What is the process for return or replacement of MEZD71203A-A?
All MEZD71203A-A units undergo pre-shipment inspection (PSI). If there is an issue with MEZD71203A-A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MEZD71203A-A part is unused and in its original packaging.
Return procedure for MEZD71203A-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MEZD71203A-A Tags
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1S4E_0505S1.5U
GAPTEC Electronic
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TPS631000DRLR
Texas Instruments
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XCL209F083DR
Torex Semiconductor Ltd
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SC202AMLTRT
Semtech Corporation
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NME1S0505SC
Murata Power Solutions Inc.
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XCL101A501ER-G
Torex Semiconductor Ltd
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RFM-0505S
Recom Power
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TEA 1-0505E
Traco Power
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MIC33153YHJ-TR
Microchip Technology
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TEA 1-0505
Traco Power
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TPSM863252RDXR
Texas Instruments
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RFB-0505S
Recom Power
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