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Monolithic Power Systems Inc. MEZDPD3603A-8544
- Part No.:
- MEZDPD3603A-8544
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 12-DIP Module
- Datasheet:
-
MEZDPD3603A-8544.pdf
- Description:
- DC DC CONVERTER
- Quantity:
- Payment:
- Shipping:
Inventory:2,561
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Product details
Overview
mEZDPD3603A-8544 from Monolithic Power Systems is a fully integrated, programmable DC/DC power supply module delivering up to 3A continuous output current with adjustable 0.6–12V output voltage, operating from 4.5–36V input, housed in a standard DIP package (16×23×6.5 mm), and featuring I²C-based configuration for bench evaluation and system integration in industrial control power rails.
For engineers reviewing the mEZDPD3603A-8544 datasheet, mEZDPD3603A-8544 pinout, mEZDPD3603A-8544 application, or mEZDPD3603A-8544 equivalent, this module supports rapid prototyping via USB-to-I²C interface, OTP/RAM programming of output voltage, current limit, switching frequency, and compensation-enabling precise optimization for embedded power subsystems without external controller design.
Technical Context
The mEZDPD3603A-8544 integrates a synchronous buck controller, power MOSFETs, inductor, and input/output capacitors into a single surface-mount module. It implements hiccup-mode short-circuit protection, over-temperature shutdown at 175°C, and programmable soft-start via I²C register writes.
Its internal 5V LDO (VCC) powers auxiliary circuitry, while SYNC allows clock synchronization across multiple modules, and ADD enables I²C address selection (e.g., 21h–26h) for multi-module systems-supporting deterministic timing and coordinated power sequencing in distributed power architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 36 V - supports wide industrial input rails including 12 V, 24 V, and 36 V battery or bus supplies. |
| Output Voltage Range | 0.6 V to 12 V - digitally programmable in fine steps, enabling direct powering of FPGAs, ASICs, and microcontrollers. |
| Max Continuous Output Current | 3 A - sustained delivery under full thermal load with case temperature rise ≤80°C at 3 A, 24 VIN, 5 VOUT. |
| Peak Efficiency | 97% - achieved at 24 VIN/12 VOUT/full load/800 kHz, minimizing heat dissipation in space-constrained enclosures. |
| Switching Frequency | 500 kHz (typical) - programmable up to 800 kHz, balancing EMI performance and inductor size for compact layout. |
| Output Voltage Accuracy | ±1% (typ) - tight regulation ensures stable core voltage for sensitive digital loads without external feedback tuning. |
| Operating Temperature | −40°C to +85°C - qualified for industrial ambient environments without derating in convection-cooled applications. |
Pinout & Package
Package: Standard DIP module, 16 mm × 23 mm × 6.5 mm, surface-mount with exposed thermal pad on bottom side for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SYNC | Clock Synchronization Input | Accepts external clock signal to align switching edges across multiple modules, reducing beat-frequency EMI. |
| 2 EN | Enable Control Input | Active-high logic input; high = enabled, low = shutdown with controlled discharge of output capacitor. |
| 3 GND | Power Ground | Main return path for high-current VIN/VOUT loops; must be connected to large internal ground plane. |
| 4 VIN | Input Supply Terminal | Primary DC input connection; requires low-ESR 4.7 µF ceramic input capacitor placed within 5 mm. |
| 5 FT̅ | Fault Indicator Output | Open-drain active-low signal asserting during overcurrent, overtemperature, or undervoltage fault conditions. |
| 6 PG | Power Good Output | Open-drain status flag indicating regulated VOUT within ±10% tolerance after soft-start completion. |
| 7 ADD | I²C Address Selection | Resistor-programmable pin setting I²C slave address (e.g., 21h–26h) for multi-module addressing. |
| 8 GND | Power Ground | Second dedicated ground terminal to reduce ground loop impedance and improve noise immunity. |
| 9 VOUT | Regulated Output Terminal | Delivers configured output voltage; requires 22 µF × 2 ceramic output capacitance for 5 V/12 V operation. |
| 10 VCC | Internal LDO Output | 5 V regulated supply for external logic; sourced from internal LDO, not intended as main system rail. |
| 11 SDA | I²C Serial Data | Bi-directional open-drain data line for programming registers and reading telemetry (VOUT, IOUT, temperature). |
| 12 SCL | I²C Serial Clock | Input-only clock line driving I²C communication at up to 400 kHz standard mode. |
Key Features
| Feature | Design Value |
|---|---|
| One-Time Programmable (OTP) Memory | Stores final configuration (VOUT, ILIM, fSW) permanently; eliminates boot-time I²C initialization in production units. |
| Unlimited RAM Register Writes | Enables dynamic reconfiguration during development-e.g., real-time load transient testing or adaptive voltage scaling. |
| EN55022 Class B EMI Compliance | Achieved with integrated filtering components and optimized layout; no external EMI filter required for most industrial enclosures. |
| Integrated Thermal Protection | OTP-tripped shutdown at 175°C junction temperature, with automatic recovery after cooldown-prevents irreversible damage. |
| GUI-Based Modeling & Verification | Virtual Bench Pro software provides SPICE-like simulation, Bode plot analysis, and ripple prediction before hardware deployment. |
Applications
| Industrial PLC I/O Power | Test & Measurement Instrumentation |
|---|---|
|
Use Scenario: Powering isolated analog input/output modules in programmable logic controllers requiring clean, stable 5 V or 3.3 V rails. IC Role / Device Role / Timing Role: Primary regulated DC/DC supply delivering 3 A at ±1% accuracy with hiccup-mode fault response to prevent cascading failures. Use Value: Eliminates need for discrete buck controller + MOSFET + inductor design, reducing BOM count by >12 components and layout area by 45%. |
Use Scenario: Providing dynamically adjustable bias voltage to precision DACs, ADC drivers, and reference buffers in automated test equipment. IC Role / Device Role / Timing Role: Programmable voltage source with I²C-controlled ramp rate and soft-start, synchronized across multiple channels via SYNC pin. Use Value: Enables voltage sweeps and calibration sequences directly from host PC without external DAC or op-amp circuitry. |
| Medical Diagnostic Imaging Subsystem | Edge AI Accelerator Board |
|
Use Scenario: Supplying low-noise 1.2 V and 1.8 V rails to FPGA-based image reconstruction engines in portable ultrasound devices. IC Role / Device Role / Timing Role: High-efficiency, thermally robust power stage with <30 mV output ripple at full load and −40°C to +85°C operation. Use Value: Meets stringent EMI limits for Class II medical equipment while maintaining thermal margin in sealed, fanless enclosures. |
Use Scenario: Delivering configurable 0.8–1.2 V core voltage to heterogeneous AI accelerators (e.g., NPU + DSP clusters) with dynamic voltage/frequency scaling. IC Role / Device Role / Timing Role: Digitally programmable point-of-load regulator supporting real-time V/f profile updates via I²C during workload transitions. Use Value: Reduces power consumption by up to 22% during low-utilization inference cycles without firmware modification. |
Availability
mEZDPD3603A-8544 is available at Aetrix Electronics and suitable for industrial PLC I/O power, test & measurement instrumentation, medical diagnostic imaging subsystems, and edge AI accelerator boards requiring stable component supply with full lifecycle support.
Supply support for mEZDPD3603A-8544 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 integrated power modules for industrial, automotive, and computing applications.
The mEZD family delivers fully assembled, tested, and programmable DC/DC modules targeting rapid prototyping and simplified power design in space- and time-constrained embedded systems.
FAQ
What is the difference between OTP and RAM programming modes?
OTP (one-time programmable) memory stores configuration permanently-once written, settings persist through power cycles and cannot be altered. RAM registers allow unlimited read/write access for development and runtime adjustment but reset on power loss. OTP is used for final production firmware; RAM enables lab evaluation and dynamic tuning.
Can mEZDPD3603A-8544 operate without an external I²C host?
Yes. Units shipped with default configuration (e.g., mEZDPD3603A-0001) power up and regulate immediately without I²C communication. The module functions as a fixed-output supply until reprogrammed. I²C is optional for customization-not required for basic operation.
What is the purpose of the ADD pin and how is it used?
The ADD pin sets the I²C slave address using an external resistor (0 kΩ to 137.5 kΩ), allowing up to six identical mEZDPD3603A modules to share one I²C bus. Each resistor value maps to a unique 7-bit address (e.g., 21h–26h), enabling individual addressing in multi-rail systems.
Does the module include input and output capacitors?
Yes. The mEZDPD3603A-8544 integrates all critical passive components: input capacitor (4.7 µF), output capacitors (22 µF × 2 for 5 V/12 V), and filtering inductors. External bulk capacitance may be added per application requirements, but the module is fully functional without additional passives.
How is thermal performance managed in the DIP package?
The module uses a thermally enhanced DIP structure with an exposed metal pad on the bottom side, designed for direct soldering to a copper-filled thermal pad on the PCB. Layout guidelines specify ≥4 thermal vias under the pad connected to an internal ground plane to achieve ≤80°C case rise at 3 A full load.
Is EN55022 Class B compliance verified with specific filter components?
Yes. The recommended EN55022 Class B filter (shown in Figure 7 of the datasheet) uses a 30 Ω/100 MHz ferrite bead (FB1) and 10 µF ceramic capacitor. With this filter, conducted emissions meet Class B limits across 150 kHz–30 MHz without additional shielding or board-level modifications.
What happens during a short-circuit event?
Upon output short, the module enters hiccup-mode protection: it shuts down for ~10 ms, then attempts restart. This cycle repeats until fault clears. During hiccup, PG deasserts and FT̅ pulls low. Recovery is automatic-no manual reset or power cycle required.
MEZDPD3603A-8544 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 12-DIP Module
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output 1:
- -
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- -
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Remote On/Off, OCP, OTP, OVP, SCP
- Operating Temperature:
- -40°C ~ 85°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- -
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MEZDPD3603A-8544 FAQ
1.How can I place an order for MEZDPD3603A-8544 through Aetrix?
Please submit a Request for Quotation (RFQ) for MEZDPD3603A-8544 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 MEZDPD3603A-8544 reliable?
The price and inventory of MEZDPD3603A-8544 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEZDPD3603A-8544 is usually 5 days.
3.What payment methods are accepted for MEZDPD3603A-8544?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEZDPD3603A-8544 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEZDPD3603A-8544?
MEZDPD3603A-8544 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEZDPD3603A-8544 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 MEZDPD3603A-8544?
For technical support, including MEZDPD3603A-8544 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEZDPD3603A-8544 requirements.
6.How does Aetrix verify that MEZDPD3603A-8544 is sourced from the original manufacturer or authorized distributors?
All MEZDPD3603A-8544 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 MEZDPD3603A-8544 meets industry standards.
7.What is the process for return or replacement of MEZDPD3603A-8544?
All MEZDPD3603A-8544 units undergo pre-shipment inspection (PSI). If there is an issue with MEZDPD3603A-8544, 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 MEZDPD3603A-8544 part is unused and in its original packaging.
Return procedure for MEZDPD3603A-8544:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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