My Inquiry
My Account
Monolithic Power Systems Inc. MEZD71203A-F
- Part No.:
- MEZD71203A-F
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 3-SIP Module
- Datasheet:
-
MEZD71203A-F.pdf
- Description:
- DC DC CONVERTER 3.3V
- Quantity:
- Payment:
- Shipping:
Inventory:1,361
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MEZD71203A-F from Monolithic Power Systems is a 5V–16V input, 3.3V fixed-output, 3A synchronous step-down DC/DC power supply module in FCQFN3x3-16 package with hiccup-mode short-circuit protection, ±2.5% output voltage accuracy, and 400kHz switching frequency. It delivers regulated power to FPGA core rails, industrial microcontrollers, and embedded SoC subsystems requiring stable 3.3V at up to 3A continuous load.
For engineers reviewing the MEZD71203A-F datasheet, MEZD71203A-F pinout, MEZD71203A-F application, or MEZD71203A-F equivalent, key selection criteria include input voltage range (5–16V), output voltage setpoint (3.3V), thermal derating behavior above 85°C ambient, hiccup-mode fault response, and compatibility with 0402/0805/1206 passive footprints in DIY board integration.
Technical Context
This module integrates controller, MOSFETs, and compensation into a single FCQFN package, operating as a constant-frequency current-mode synchronous buck converter. It uses internal bootstrap circuitry for high-side gate drive and supports external enable control via EN pin.
Thermal shutdown triggers at 150°C junction temperature with automatic recovery; output overvoltage protection activates when VOUT exceeds 110% of nominal. Input under-voltage lockout ensures VIN remains ≥1V above VOUT before startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 16V - supports 12V industrial bus and wide-range adapter inputs without pre-regulation |
| Output Voltage | 3.3V fixed - matches standard logic I/O and peripheral interface voltage requirements |
| Max Output Current | 3A continuous - sufficient for mid-power FPGA cores or dual-core ARM processors |
| Switching Frequency | 400kHz typical - enables use of compact 3.3µH shielded inductors with low EMI |
| Output Voltage Accuracy | ±2.5% typical - meets tight tolerance needs for memory I/O and analog subsystems |
| Short-Circuit Response | Hiccup mode - limits average power dissipation during sustained fault, enabling safe auto-recovery |
| Operating Temp Range | −40°C to +85°C ambient - validated for industrial enclosure environments without forced airflow |
Pinout & Package
FCQFN3x3-16 package with exposed thermal pad (pin 16) on bottom; 3.0mm × 3.0mm footprint, 0.5mm pitch, 0.8mm max height. Pin 1 marked by dot; top-side silkscreen identifies VIN, GND, VOUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input power connection - requires local 0.22µF ceramic bypass and bulk capacitance upstream |
| 2 | GND | Power ground return - tied directly to thermal pad and PCB ground plane for thermal and EMI control |
| 3 | VOUT | Regulated output - connects to 22µF ceramic output capacitors and downstream load |
| 16 | PGND/AGND | Exposed thermal pad - must be soldered to solid copper pour for thermal conduction and noise isolation |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous Buck Architecture | Integrated high- and low-side MOSFETs eliminate external diode, improving efficiency >90% at mid-load |
| Hiccup Short-Circuit Protection | Current-limiting cycles with ~100ms off-time prevent thermal runaway during sustained shorts |
| Open Design Files & BOM | Gerber, schematic, and verified bill-of-materials provided for rapid layout reuse and compliance validation |
| Wide Input Range (5–16V) | Eliminates need for intermediate pre-regulator in 12V rail systems with transient headroom |
| Thermal Shutdown (150°C) | Junction-sensing OTP with hysteresis ensures reliable operation under sustained overload or poor airflow |
Applications
| Industrial PLC I/O Module | FPGA Core Power Supply |
|---|---|
Use Scenario: Powering digital I/O banks and isolated communication interfaces in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary 3.3V point-of-load regulator delivering clean, ripple-controlled voltage to logic-level transceivers and ADC reference circuits. Use Value: ±2.5% output accuracy and <30.4mV ripple ensure reliable SPI/I²C timing margins and analog measurement integrity. | Use Scenario: Supplying configurable logic fabric and block RAM in Xilinx Artix-7 or Intel Cyclone V FPGAs. IC Role / Device Role / Timing Role: Core voltage regulator with fast transient response (0.8ms rise time) supporting dynamic clock gating and partial reconfiguration. Use Value: 3A capability and hiccup protection maintain system uptime during FPGA configuration surges or logic faults. |
| Medical Sensor Hub | Edge AI Vision Node |
Use Scenario: Powering low-noise analog front-ends and wireless BLE/Wi-Fi co-processors in portable diagnostic devices. IC Role / Device Role / Timing Role: Single-stage 12V-to-3.3V conversion with minimal external components and no external compensation required. Use Value: Compact 3×3mm FCQFN footprint and open design files accelerate FDA-compliant hardware revision cycles. | Use Scenario: Delivering stable 3.3V to vision processors (e.g., NXP i.MX 8M Plus) and MIPI camera interfaces in battery-backed edge nodes. IC Role / Device Role / Timing Role: High-efficiency buck module supporting burst-mode operation and thermal-aware load management. Use Value: 400kHz switching frequency avoids AM radio band interference while maintaining >85% efficiency at 1A–2.5A loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output DC/DC power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3530GQV | Same manufacturer, newer generation; 4.5–18V input, 3A, 3.3V fixed, 1.2MHz switching, smaller 2.5×3.0mm QFN | Higher frequency allows smaller inductor; tighter ±1% output accuracy; no hiccup mode (latch-off on fault) | Select for space-constrained designs needing higher efficiency above 1.5A and faster transient response |
| TSM12330 | 3A, 3.3V fixed, 4.5–17V input, 600kHz, integrated inductor, SIP-7 package | Self-shielded inductor reduces EMI filtering burden; larger 11.5×10.5mm footprint; lower thermal resistance via metal-can construction | Select when board-level EMI certification is critical and PCB area is less constrained than height |
Compared with MPM3530GQV, MEZD71203A-F offers hiccup-mode fault recovery and proven 400kHz stability in legacy industrial layouts; versus TSM12330, it provides lower profile and finer thermal control but requires external magnetics and layout optimization.
Availability
MEZD71203A-F is available at Aetrix Electronics and suitable for industrial automation, medical sensor hubs, and edge AI vision nodes requiring stable component supply despite end-of-life status.
Supply support for MEZD71203A-F 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 for industrial, computing, and automotive markets.
The mEZD71203A series belongs to MPS's ready-to-use DC/DC power module product line, designed for rapid deployment in space- and time-constrained embedded systems without custom power design effort.
FAQ
Is MEZD71203A-F still in production?
No - MEZD71203A-F is officially End-of-Life per MPS documentation (Rev. 1.3, Feb 2018). Aetrix Electronics maintains limited legacy stock and supports last-time buys with full traceability and documentation. Replacement guidance points to MPM3530GQV as the direct functional successor.
What is the recommended input capacitor configuration?
MPS specifies a 0.22µF ceramic (0402) close to VIN pin plus ≥10µF bulk capacitance (e.g., 1206 4.7µF X7R) on the input net. Total input capacitance must sustain 3A load steps without dropping below 5V; layout must minimize loop inductance between CIN, VIN, and PGND.
Does MEZD71203A-F require external compensation?
No - the device is fully internally compensated. No external RC network or feedback divider is needed for the fixed 3.3V version. Compensation is factory-trimmed and validated across temperature and load; only input/output capacitors and inductor are required for operation.
How is thermal performance affected by PCB layout?
Thermal resistance drops from 45°C/W (no copper) to ≤25°C/W when the exposed thermal pad (pin 16) is soldered to ≥4 cm² of 2oz copper with ≥4 thermal vias (0.3mm diameter, 1mm pitch). Insufficient copper causes early OTP activation above 65°C ambient at full load.
Can MEZD71203A-F be used with 24V input?
No - absolute maximum input voltage is 16V. Applying 24V will damage the internal MOSFETs and controller. For 24V systems, use mEZD71202A-X (4.5–24V, 2A) or MPM3530GQV (4.5–18V, 3A) with appropriate derating.
What does "DO-IT-YOURSELF" mean in the datasheet?
"Do-It-Yourself" refers to MPS-provided Gerber files, schematic, and BOM for the reference board (DIY71203-AX), enabling customers to manufacture identical boards in-house or via contract manufacturers - distinct from "Ready-to-Use" pre-assembled modules.
Is there an enable pin, and how is it controlled?
Yes - pin 4 (EN) is the active-high enable input. Driving EN ≥2.0V (with ≥10µA sink capability) enables regulation; pulling EN ≤0.4V disables output and reduces quiescent current to <100µA. No pull-up resistor is required - internal bias is provided.
MEZD71203A-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 3-SIP Module
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Linear Regulator Replacement
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 5V
- Voltage - Input (Max):
- 16V
- Voltage - Output 1:
- 3.3V
- 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-F FAQ
1.How can I place an order for MEZD71203A-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MEZD71203A-F 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-F reliable?
The price and inventory of MEZD71203A-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEZD71203A-F is usually 5 days.
3.What payment methods are accepted for MEZD71203A-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEZD71203A-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEZD71203A-F?
MEZD71203A-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEZD71203A-F 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-F?
For technical support, including MEZD71203A-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEZD71203A-F requirements.
6.How does Aetrix verify that MEZD71203A-F is sourced from the original manufacturer or authorized distributors?
All MEZD71203A-F 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-F meets industry standards.
7.What is the process for return or replacement of MEZD71203A-F?
All MEZD71203A-F units undergo pre-shipment inspection (PSI). If there is an issue with MEZD71203A-F, 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-F part is unused and in its original packaging.
Return procedure for MEZD71203A-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MEZD71203A-F Tags
-
1S4E_0505S1.5U
GAPTEC Electronic
-
TPS631000DRLR
Texas Instruments
-
XCL209F083DR
Torex Semiconductor Ltd
-
SC202AMLTRT
Semtech Corporation
-
NME1S0505SC
Murata Power Solutions Inc.
-
XCL101A501ER-G
Torex Semiconductor Ltd
-
RFM-0505S
Recom Power
-
TEA 1-0505E
Traco Power
-
MIC33153YHJ-TR
Microchip Technology
-
TEA 1-0505
Traco Power
-
TPSM863252RDXR
Texas Instruments
-
RFB-0505S
Recom Power
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
