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Monolithic Power Systems Inc. MEZDPD3603A-84E0
- Part No.:
- MEZDPD3603A-84E0
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 12-DIP Module
- Datasheet:
-
MEZDPD3603A-84E0.pdf
- Description:
- DC DC CONVERTER 12V
- Quantity:
- Payment:
- Shipping:
Inventory:4,001
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Product details
Overview
mEZDPD3603A-84E0 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. It integrates controller, MOSFETs, inductor, and compensation in a standard DIP package (16×23×6.5 mm), featuring I²C-based configuration, OTP memory, and EN55022 Class B compliance for industrial and embedded power applications.
For engineers reviewing the mEZDPD3603A-84E0 datasheet, mEZDPD3603A-84E0 pinout, mEZDPD3603A-84E0 application, or mEZDPD3603A-84E0 equivalent, this module supports rapid bench evaluation via USB-to-I²C interface, real-time register tuning, one-time OTP programming of output voltage/current limit/switching frequency, and thermal-safe operation from –40°C to +85°C.
Technical Context
The mEZDPD3603A-84E0 implements a synchronous buck topology with integrated high- and low-side MOSFETs, internal 5V LDO (VCC), and digital control core enabling precise regulation across line (±1% line regulation) and load (±1% load regulation) variations. Its programmable switching frequency (default 500 kHz) and configurable compensation allow optimization for efficiency, transient response, or EMI performance.
It features dual fault reporting (PG and FT̅̅̅̅ pins), hiccup-mode short-circuit protection, over-temperature shutdown at 175°C, and I²C address selection via external resistor (R2) for multi-module systems. All programmable parameters-including output voltage, current limit, and soft-start-are stored in OTP ROM or volatile RAM for unlimited runtime updates.
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 - Programmable in 10 mV steps; enables single module to replace multiple fixed-output regulators. |
| Max Output Current | 3 A continuous - Delivers full rated current at 85°C ambient with proper layout and airflow. |
| Peak Efficiency | 97% - Achieved at VIN=24 V, VOUT=12 V, 800 kHz switching; reduces thermal load and improves system power density. |
| Switching Frequency | Programmable 300–1200 kHz - Enables trade-off between size (higher fSW → smaller inductor/capacitors) and efficiency (lower fSW → lower switching loss). |
| Output Voltage Accuracy | ±1% typical - Ensures stable rail delivery for sensitive analog, FPGA, or microcontroller cores without external feedback calibration. |
| Operating Temperature | –40°C to +85°C - Rated for extended industrial environments without derating under full load. |
Pinout & Package
Package: Standard DIP module, 16 mm × 23 mm × 6.5 mm, with exposed thermal pad on bottom for PCB heat sinking. Pin pitch: 2.54 mm (0.1 inch), through-hole mounting compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SYNC | Synchronization Input | Accepts external clock signal to align switching edges across multiple modules, reducing EMI peak amplitude. |
| 2 EN | Enable Control | Active-high logic input; drives device into low-quiescent standby (<100 µA) when pulled low. |
| 3, 8 GND | Power Ground | Dual ground terminals minimize ground loop impedance and improve noise immunity in high-current paths. |
| 4 VIN | Main Input Supply | Primary DC input connection; requires local 4.7 µF ceramic capacitor per datasheet layout guidelines. |
| 5 FT̅̅̅̅ | Fault Indicator Output | Open-drain active-low signal asserting during overcurrent, overtemperature, or undervoltage lockout events. |
| 6 PG | Power Good Output | Open-drain status flag indicating regulated output has settled within ±10% of target for >1 ms. |
| 7 ADD | I²C Address Select | Resistor-programmable pin setting I²C slave address (e.g., 21h–26h) for multi-module bus addressing. |
| 9 VOUT | Regulated Output | Main power output terminal; connects directly to load with recommended 22 µF ×2 ceramic output capacitance. |
| 10 VCC | Internal LDO Output | 5 V regulated supply for internal circuitry; requires 1 µF bypass capacitor close to pin and GND. |
| 11 SDA | I²C Data Line | Bi-directional open-drain data bus for configuration, telemetry, and real-time monitoring. |
| 12 SCL | I²C Clock Line | 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 output voltage, current limit, and switching frequency settings permanently-enables production-ready configuration without host MCU involvement. |
| I²C Interface with GUI Support | Full register access via Virtual Bench Pro GUI; allows live parameter adjustment, performance modeling, and fault logging during development and validation. |
| Integrated Inductor & Thermal Design | Embedded 4.7 µH shielded inductor and copper-clad DIP package enable 3 A operation with ≤60°C case rise at full load (VIN=24 V, VOUT=5 V). |
| EN55022 Class B EMI Compliance | Meets conducted and radiated emissions limits without external filtering beyond recommended input LC network-reduces board-level certification risk. |
| Hiccup-Mode Short-Circuit Protection | Automatically cycles ON/OFF during sustained overload, limiting average power dissipation and preventing thermal runaway or component damage. |
Applications
| Industrial PLC I/O Module | Test & Measurement Instrumentation |
|---|---|
|
Use Scenario: Powering isolated analog sensor interfaces and digital I/O banks in DIN-rail mounted PLCs requiring stable 3.3 V or 5 V rails across varying 24 V field bus voltages. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting unregulated 24 V field supply to tightly regulated 3.3 V/5 V outputs with ±1% accuracy and hiccup-mode fault containment. Use Value: Eliminates need for discrete buck controller + external FETs + inductor + compensation network-reducing BOM count by ≥12 components and layout area by >40%. |
Use Scenario: Providing clean, programmable bias rails for precision ADCs, DACs, and op-amp signal chains inside portable benchtop multimeters and waveform analyzers. IC Role / Device Role / Timing Role: Digitally configurable power source supporting multiple test modes (e.g., 3.3 V for logic, 12 V for relay drivers) via I²C command without hardware change. Use Value: Enables firmware-driven rail reconfiguration during self-test or calibration sequences-improving instrument flexibility and reducing factory setup time. |
| Medical Diagnostic Edge Device | Automotive Infotainment Head Unit |
|
Use Scenario: Supplying regulated 5 V and 12 V rails to imaging sensor interfaces and low-power microcontrollers in portable ultrasound or ECG edge devices operating from 12 V battery packs. IC Role / Device Role / Timing Role: High-efficiency (93.2% @ 12 V out) buck module with –40°C to +85°C rating and EN55022 Class B compliance for safety-critical medical EMC requirements. Use Value: Meets IEC 60601-1 leakage and EMI standards without added shielding or filtering-accelerating regulatory submission timelines. |
Use Scenario: Delivering stable 3.3 V and 5 V supplies to SoC, display driver, and audio codec subsystems in automotive head units powered from 12 V vehicle battery with wide cold-crank transients. IC Role / Device Role / Timing Role: Input-rated for 4.5–36 V with robust line regulation (±1%) and fast load transient recovery (<1 ms rise time) to maintain SoC stability during radio transmission bursts. Use Value: Withstands 36 V load-dump pulses and maintains regulation down to 4.5 V during cranking-eliminating need for upstream pre-regulator or TVS clamping. |
Availability
mEZDPD3603A-84E0 is available at Aetrix Electronics and suitable for industrial automation, test equipment, medical edge devices, and automotive infotainment systems requiring stable component supply, programmable power architecture, and rapid design-in support.
Supply support for mEZDPD3603A-84E0 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, computing, automotive, and communications markets.
The mEZDPD series targets engineers needing turnkey, programmable DC/DC solutions that eliminate complex power design while retaining flexibility-designed for rapid prototyping, scalable production, and compliance-critical applications.
FAQ
What is the difference between OTP and RAM programming modes?
OTP (one-time programmable) memory stores permanent configuration values like output voltage and current limit-written once and retained after power loss. RAM registers allow unlimited runtime changes via I²C for dynamic tuning during development or field updates, but settings reset on power cycle unless saved to OTP.
Can mEZDPD3603A-84E0 operate without an external I²C host?
Yes. The module ships with default configuration (5 V, 3 A, 500 kHz) and functions autonomously after power-up. I²C is optional for programming and monitoring-no host required for basic operation, making it suitable for cost-sensitive or space-constrained deployments.
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 mEZDPD3603A-84E0 modules to share a single I²C bus. Each resistor value maps to a unique 7-bit address (e.g., 21h–26h), enabling coordinated configuration in multi-rail systems.
Does mEZDPD3603A-84E0 require external compensation components?
No. All compensation is implemented internally and automatically adjusted based on programmed output voltage and switching frequency. No external resistors, capacitors, or op-amps are needed-simplifying layout and eliminating tuning iterations during design validation.
How does the FT̅̅̅̅ pin behave during fault conditions?
The FT̅̅̅̅ pin is an open-drain output that pulls low during overcurrent, overtemperature (>175°C), or input undervoltage lockout. It remains asserted until the fault clears and the device recovers-providing direct hardware-level fault signaling to system supervisors or microcontrollers.
What is the thermal performance under full 3 A load at 85°C ambient?
At VIN=24 V, VOUT=5 V, and 85°C ambient, the module achieves ≤60°C case temperature rise with recommended 4-layer PCB layout and 2 oz copper. Derating is not required up to 85°C ambient, and thermal shutdown activates only if internal junction exceeds 175°C.
Is EN55022 Class B compliance verified with external components?
Yes. The specified EN55022 Class B compliance is achieved using only the recommended input filter (FB1 bead + CIN) and standard PCB layout per datasheet guidelines-no additional ferrites, shields, or custom filters are required for certification testing.
MEZDPD3603A-84E0 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):
- 20V
- Voltage - Input (Max):
- 28V
- Voltage - Output 1:
- 12V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 3A
- 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-84E0 FAQ
1.How can I place an order for MEZDPD3603A-84E0 through Aetrix?
Please submit a Request for Quotation (RFQ) for MEZDPD3603A-84E0 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-84E0 reliable?
The price and inventory of MEZDPD3603A-84E0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEZDPD3603A-84E0 is usually 5 days.
3.What payment methods are accepted for MEZDPD3603A-84E0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEZDPD3603A-84E0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEZDPD3603A-84E0?
MEZDPD3603A-84E0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEZDPD3603A-84E0 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-84E0?
For technical support, including MEZDPD3603A-84E0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEZDPD3603A-84E0 requirements.
6.How does Aetrix verify that MEZDPD3603A-84E0 is sourced from the original manufacturer or authorized distributors?
All MEZDPD3603A-84E0 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-84E0 meets industry standards.
7.What is the process for return or replacement of MEZDPD3603A-84E0?
All MEZDPD3603A-84E0 units undergo pre-shipment inspection (PSI). If there is an issue with MEZDPD3603A-84E0, 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-84E0 part is unused and in its original packaging.
Return procedure for MEZDPD3603A-84E0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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