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Monolithic Power Systems Inc. MEZD71202A-C
- Part No.:
- MEZD71202A-C
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 3-SIP Module
- Datasheet:
-
MEZD71202A-C.pdf
- Description:
- DC DC CONVERTER 1.5V
- Quantity:
- Payment:
- Shipping:
Inventory:1,542
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Product details
Overview
MEZD71202A-C from Monolithic Power Systems is a ready-to-use, 2A synchronous step-down DC/DC power supply module with fixed 1.5V output, 4.5–24V input range, ±2.5% output voltage accuracy, 400kHz switching frequency, and hiccup-mode short-circuit protection. It integrates power MOSFETs, inductor, and compensation components in an FCQFN3x3-16 package for industrial power rails requiring compact, high-efficiency 1.5V biasing.
For engineers reviewing the MEZD71202A-C datasheet, MEZD71202A-C pinout, MEZD71202A-C application, or MEZD71202A-C equivalent, key selection criteria include input voltage headroom (VIN > VOUT + 1V), thermal derating above 65°C ambient, load regulation (±1% typ.), open-design BOM availability, and EOL status requiring migration planning to MPM3530.
Technical Context
This module implements a fully integrated buck converter architecture with internal high-side and low-side MOSFETs, fixed-frequency current-mode control, and internal compensation. It supports adjustable soft-start via external capacitor on the EN pin and delivers stable 1.5V output across 0–2A load with <33.6mV peak-to-peak ripple at 12V input.
Thermal management relies on over-temperature protection (OTP) triggering at 150°C and natural-convection-rated power derating curves-output power drops to 50% at 105°C ambient for VOUT=3.3V/5V configurations. Input under-voltage lockout (UVLO) and over-voltage protection (OVP) are embedded.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 24V - Supports 5V, 12V, and 24V industrial bus rails with ≥1V headroom over output. |
| Output Voltage | 1.5V fixed - Set by internal resistor divider; ±2.5% accuracy ensures reliable logic-level biasing for 1.5V I/O domains. |
| Max Output Current | 2A continuous - Sustained delivery without forced air; derates linearly above 65°C ambient per published curve. |
| Switching Frequency | 400kHz typical - Enables use of compact 3.3µH inductor and balances efficiency vs. EMI filtering complexity. |
| Output Ripple | 33.6mVpp @ VIN=12V, VOUT=3.3V, full load - Measured at output capacitor; confirms low-noise performance for analog-sensitive loads. |
| Protections | Hiccup short-circuit, OTP (150°C), UVLO, OVP - Autonomous recovery after fault clears; no latch-up or manual reset required. |
| Rise Time | 0.75ms (0%→90%) - Ensures controlled power-up sequencing for downstream FPGAs or microcontrollers. |
Pinout & Package
FCQFN3x3-16 package with exposed thermal pad (bottom-side); 3.0mm × 3.0mm footprint, 0.5mm pitch, 0.8mm max height. Pin 1 marked by dot; pins 1–8 on top row left-to-right, 9–16 on bottom row right-to-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Power Supply | Primary DC input connection; requires local 0.22µF ceramic decoupling adjacent to pin. |
| 2 (GND) | Power Ground | High-current return path for input and power stage; must connect directly to thermal pad and system GND plane. |
| 3 (VOUT) | Regulated Output | Delivers 1.5V to load; requires 22µF X7T/X5R ceramic output capacitance per design guide. |
| 4–7, 10–13 | No Connect / Thermal Pad Tie | Internally connected to thermal pad; recommended to solder to PCB copper for thermal conduction. |
| 8, 9, 14–16 | Exposed Thermal Pad | Primary heat dissipation path; must be soldered to ≥200mm² internal/external copper area with ≥4 thermal vias. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Inductor | 3.3µH, 4.1A IDC, 27.3mΩ DCR - Eliminates external magnetics; reduces layout sensitivity and EMI loop area. |
| Open Design Files | Gerber, BOM, and schematic available - Enables rapid validation, custom layout adaptation, and compliance traceability. |
| Natural Convection Rating | Full 2A output up to 65°C ambient - No heatsink or fan required for enclosed industrial enclosures with airflow >0.5 m/s. |
| Hiccup Short-Circuit Response | Auto-retry every ~500ms after shutdown - Prevents thermal runaway while maintaining system visibility during fault conditions. |
| Wide Input Range | 4.5V–24V operation - Compatible with 5V USB-PD, 12V PoE+, and 24V factory automation rails without external pre-regulation. |
Applications
| Industrial PLC I/O Module | FPGA Core Bias Supply |
|---|---|
Use Scenario: Providing clean 1.5V core power to Spartan-7 or Intel MAX 10 FPGA banks in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated 1.5V at up to 2A with <34mV ripple. Use Value: Eliminates need for discrete buck controller + external inductor + gate drivers, reducing BOM count by ≥12 parts and layout area by 45%. | Use Scenario: Powering ARM Cortex-M7 microcontroller cores in edge AI sensor nodes with battery-backed 12V input. IC Role / Device Role / Timing Role: Fixed-output buck module enabling fast power-up (0.75ms rise time) and seamless brown-out recovery. Use Value: Internal OTP and hiccup protection prevent field failures during transient overloads common in wireless sensor wake cycles. |
| Medical Diagnostic Front-End | Automotive Infotainment Display |
Use Scenario: Supplying 1.5V to high-speed ADC drivers and precision op-amps in portable ultrasound signal chains. IC Role / Device Role / Timing Role: Low-noise, low-ripple DC/DC source meeting IEC 60601-1 EMI limits without added ferrite beads. Use Value: 33.6mVpp ripple at full load meets SNR requirements for 16-bit data acquisition without post-regulation LDOs. | Use Scenario: Generating 1.5V for display timing controller (TCON) ICs in 12V-powered automotive dashboards. IC Role / Device Role / Timing Role: Input-tolerant buck module surviving load-dump transients up to 24V with built-in OVP/UVLO. Use Value: 4.5–24V input range accommodates cold-crank (4.5V) to load-dump (24V) automotive battery profiles without external protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3530 | Successor part: 4.5–24V input, 3A output, 1.5V fixed option, 1.2MHz switching, smaller 3x3 QFN. | Higher current, faster switching, lower profile - suitable for space-constrained designs needing >2A or improved light-load efficiency. | Select MPM3530 for new designs; verify PCB footprint change and adjust input/output capacitance per updated layout guidelines. |
| mEZD71201A-C | Same family, 1A rating, identical pinout and BOM - shares same FCQFN3x3-16 package and thermal pad layout. | Lower current capability only - appropriate where thermal margin or cost reduction outweighs 2A requirement. | Use mEZD71201A-C if load never exceeds 1A and board reuse is critical; confirm thermal performance at target ambient. |
Compared with mEZD71201A-C, MEZD71202A-C delivers double output current in identical footprint but with higher thermal mass; versus MPM3530, it offers proven reliability in legacy systems but lacks modern efficiency and density improvements required for next-gen compact designs.
Availability
MEZD71202A-C is available at Aetrix Electronics and suitable for industrial PLCs, FPGA power rails, medical front-end electronics, and automotive infotainment displays requiring stable component supply despite end-of-life status.
Supply support for MEZD71202A-C 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 centers.
The mEZD712xx series was designed as plug-and-play DC/DC modules targeting rapid prototyping and production deployment in industrial, medical, and transportation equipment where layout simplicity and time-to-market are critical.
FAQ
Is MEZD71202A-C still in active production?
No. MEZD71202A-C is officially End-of-Life (EOL) per Monolithic Power Systems' announcement. Aetrix Electronics holds limited legacy stock and provides migration support to the MPM3530, including cross-reference design review and sample coordination.
What is the recommended input capacitor for MEZD71202A-C?
The datasheet specifies a 0.22µF X5R ceramic capacitor (0402) placed directly at the VIN pin. For systems with long input traces or high-impedance sources, add a bulk 10µF–22µF X7R/X7S capacitor upstream to suppress low-frequency ripple and maintain stability under dynamic load steps.
Can MEZD71202A-C operate at 4.5V input with 1.5V output?
Yes, but only with strict attention to input voltage headroom: VIN must exceed VOUT by ≥1V per datasheet specification. At 1.5V output, minimum valid input is 2.5V - however, the 4.5V minimum is enforced by internal UVLO, so 4.5V is the practical lower limit regardless of theoretical headroom.
Does MEZD71202A-C require external feedback resistors?
No. MEZD71202A-C is a fixed-output variant (1.5V). The 'C' suffix denotes internal resistor divider configuration; no external feedback network is needed or supported. Output voltage cannot be adjusted.
How is thermal performance verified for MEZD71202A-C in enclosure designs?
Thermal validation requires measuring case temperature at the center of the exposed thermal pad under worst-case ambient (85°C), full 2A load, and natural convection. Per datasheet, junction temperature must remain ≤125°C; measured pad temp should not exceed 105°C for VOUT=1.5V at 2A.
Are Gerber files and BOM publicly available for MEZD71202A-C?
Yes. Monolithic Power Systems provides open design files including Gerber, schematic, and full BOM (with manufacturer PNs and packages) upon request to [email protected]. Aetrix Electronics can facilitate access and provide verified build documentation.
What is the function of Pin 4–7 and Pin 10–13 on the FCQFN3x3-16 package?
Pins 4–7 and 10–13 are internally tied to the exposed thermal pad and serve no signal function. They must be soldered to the PCB's thermal copper pour to ensure mechanical integrity and optimal heat transfer - floating or unconnected pins will cause thermal failure and premature OTP shutdown.
MEZD71202A-C 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):
- 4.5V
- Voltage - Input (Max):
- 24V
- Voltage - Output 1:
- 1.5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 2A
- 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:
- -
MEZD71202A-C FAQ
1.How can I place an order for MEZD71202A-C through Aetrix?
Please submit a Request for Quotation (RFQ) for MEZD71202A-C 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 MEZD71202A-C reliable?
The price and inventory of MEZD71202A-C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEZD71202A-C is usually 5 days.
3.What payment methods are accepted for MEZD71202A-C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEZD71202A-C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEZD71202A-C?
MEZD71202A-C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEZD71202A-C 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 MEZD71202A-C?
For technical support, including MEZD71202A-C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEZD71202A-C requirements.
6.How does Aetrix verify that MEZD71202A-C is sourced from the original manufacturer or authorized distributors?
All MEZD71202A-C 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 MEZD71202A-C meets industry standards.
7.What is the process for return or replacement of MEZD71202A-C?
All MEZD71202A-C units undergo pre-shipment inspection (PSI). If there is an issue with MEZD71202A-C, 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 MEZD71202A-C part is unused and in its original packaging.
Return procedure for MEZD71202A-C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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