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Monolithic Power Systems Inc. MEZDPD3603A-84EC
- Part No.:
- MEZDPD3603A-84EC
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 12-DIP Module
- Datasheet:
-
MEZDPD3603A-84EC.pdf
- Description:
- DC DC CONVERTER 12V
- Quantity:
- Payment:
- Shipping:
Inventory:3,145
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Product details
Overview
mEZDPD3603A-84EC from Monolithic Power Systems is a fully integrated, programmable DC/DC power supply module delivering up to 3A continuous output current with adjustable 0.6V–12V output voltage, operating from 4.5V–36V input, housed in a standard DIP package (16×23×6.5 mm), and featuring I²C-based configuration via OTP and RAM registers for industrial power management applications.
For engineers reviewing the mEZDPD3603A-84EC datasheet, mEZDPD3603A-84EC pinout, mEZDPD3603A-84EC application, or mEZDPD3603A-84EC equivalent, this module supports rapid bench evaluation with GUI-driven parameter tuning-including output voltage, current limit, switching frequency, and compensation-enabling optimized power delivery without hardware redesign.
Technical Context
The mEZDPD3603A-84EC 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 control.
Its internal 5V LDO (VCC) powers auxiliary circuitry, while SYNC enables clock synchronization across multiple modules, and ADD allows configurable I²C slave address selection (e.g., 21h–26h) for multi-module systems. The PG and FT pins provide real-time power-good status and fault indication respectively.
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 fine steps via I²C; default factory setting is 5 V (mEZDPD3603A-0001). |
| Max Continuous Output Current | 3 A - Sustained load capability with thermal derating above 85°C ambient; validated at full load with 93.2% efficiency @ 24 VIN/12 VOUT. |
| Switching Frequency | 500 kHz typical - Fixed or programmable frequency; enables compact external filter design and EMI compliance with EN55022 Class B. |
| Output Voltage Accuracy | ±1% typical - Tight regulation ensures stable rail delivery for sensitive analog/digital loads without external feedback tuning. |
| Operating Temperature Range | −40°C to +85°C - Qualified for industrial environments; includes internal OTP with 175°C trip point and automatic recovery. |
| Efficiency Peak | 97% - Achieved under specific conditions (e.g., 24 VIN/5 VOUT, light load); 89% at full load per test data. |
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 dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SYNC) | Clock Synchronization Input | Accepts external clock signal to align switching frequency across multiple modules; reduces beat-frequency noise in parallel configurations. |
| 2 (EN) | Enable Control Input | Active-high logic input; drives high to enable output; supports sequencing and system-level power-up control. |
| 3 & 8 (GND) | Power Ground | Dual ground terminals minimize ground loop impedance; must be connected to low-impedance PCB ground plane. |
| 4 (VIN) | Main Input Supply | Primary DC input connection; requires local 4.7 µF ceramic capacitor per layout guidelines to suppress high-frequency ripple. |
| 5 (FT̅) | Fault Indicator Output | Open-drain active-low signal indicating over-current, over-temperature, or undervoltage lockout condition. |
| 6 (PG) | Power Good Output | Open-drain active-high signal confirming regulated output within ±10% tolerance after soft-start completion. |
| 7 (ADD) | I²C Address Selection | Resistor-programmable pin to set I²C slave address (e.g., 21h–26h); enables up to six modules on one bus. |
| 9 (VOUT) | Regulated Output | Main power output terminal; requires 22 µF × 2 ceramic output capacitance for 5 V/12 V configurations per recommended design. |
| 10 (VCC) | Internal LDO Output | 5 V regulated output from internal LDO; powers external logic or interface ICs; requires 1 µF local decoupling. |
| 11 (SDA) | I²C Data Line | Bi-directional serial data line for programming OTP/RAM registers and reading telemetry (e.g., temperature, voltage). |
| 12 (SCL) | I²C Clock Line | Master-generated clock input for I²C communication; supports standard (100 kHz) and fast (400 kHz) modes. |
Key Features
| Feature | Design Value |
|---|---|
| One-Time Programmable (OTP) Memory | Stores final configuration (output voltage, current limit, frequency) permanently; eliminates need for external EEPROM or startup firmware. |
| I²C Interface with GUI Support | Enables real-time parameter adjustment and performance modeling using Virtual Bench Pro software-no hardware changes required during validation. |
| Integrated Thermal Protection | Monitors die temperature and initiates hiccup-mode shutdown at 175°C; resumes operation automatically after cooldown. |
| EN55022 Class B EMI Compliance | Validated with recommended input filter (FB1 + CIN); meets radiated/conducted emissions limits without additional shielding or ferrites. |
| Multi-Module Addressing | ADD pin supports six unique I²C addresses (21h–26h), enabling coordinated control of up to six mEZDPD3603A modules on a single bus. |
Applications
| Industrial PLC Power Rails | Test & Measurement Instrumentation |
|---|---|
|
Use Scenario: Providing isolated, adjustable 3.3 V/5 V/12 V rails for microcontroller, ADC, and analog front-end circuits inside modular PLC backplanes. IC Role / Device Role / Timing Role: Primary DC/DC power supply module delivering stable, low-noise output with programmable sequencing and fault reporting. Use Value: Eliminates discrete buck regulator design effort; enables field reconfiguration of output voltage to match changing sensor or I/O module requirements. |
Use Scenario: Powering precision DACs, reference buffers, and FPGA configuration circuits in automated test equipment requiring tight voltage accuracy and low ripple. IC Role / Device Role / Timing Role: Regulated power source with ±1% output accuracy and 30 mVpp ripple at full load, supporting sub-millivolt measurement integrity. Use Value: Reduces calibration drift by maintaining stable rail under varying load transients; PG/FT signals support self-test and diagnostic logging. |
| Medical Diagnostic Imaging Subsystems | Automated Optical Inspection (AOI) Systems |
|
Use Scenario: Supplying bias voltage to CCD/CMOS image sensors and timing controllers in portable ultrasound or X-ray detector modules. IC Role / Device Role / Timing Role: High-efficiency (up to 93.2%) power converter operating from 24 V battery or PoE-derived input, with soft-start to prevent inrush-induced sensor reset. Use Value: Extends battery runtime via >90% efficiency at mid-load; SYNC pin enables synchronized switching with imaging clock to suppress beat-frequency artifacts. |
Use Scenario: Delivering clean, programmable 5 V and 12 V rails to high-speed line-scan cameras, LED strobes, and motion-control drivers in PCB inspection platforms. IC Role / Device Role / Timing Role: Dual-rail capable module (via multiple units) with independent I²C addressing and coordinated enable/disable for synchronized subsystem power-up. Use Value: Enables dynamic voltage scaling for different camera exposure modes; hiccup-mode SCP prevents damage during lens actuator stall events. |
Availability
mEZDPD3603A-84EC is available at Aetrix Electronics and suitable for industrial PLC power rails, test & measurement instrumentation, and medical diagnostic imaging subsystems requiring stable component supply, guaranteed long-term availability, and full technical documentation support.
Supply support for mEZDPD3603A-84EC 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 telecom markets.
The mEZD family-including mEZDPD3603A-84EC-is designed for rapid prototyping and production-ready deployment of programmable, high-density DC/DC solutions, reducing design cycle time and eliminating external compensation components.
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 mode allows unlimited register writes for iterative testing, but values are lost on power-down unless saved to OTP. Writing to OTP requires VIN = 8–36 V and causes module restart.
Can mEZDPD3603A-84EC operate without I²C communication?
Yes. All mEZDPD3603A modules ship with default configuration (5 V, 3 A, 500 kHz). They function autonomously once enabled via EN pin. I²C is optional for customization-no external controller is needed for basic operation.
What is the purpose of the ADD pin, and how is it used?
The ADD pin sets the I²C slave address by connecting it to GND or pulling it up with a resistor (e.g., 37.5 kΩ → 22h). This enables up to six identical modules on one I²C bus without address conflict, critical for multi-rail or redundant power systems.
Does mEZDPD3603A-84EC require external compensation components?
No. The module integrates all compensation circuitry internally. No external resistors or capacitors are needed for loop stability-this is confirmed in the "Typical Application Circuit" and "Layout Guidelines" sections of the datasheet.
How is thermal performance managed in the DIP package?
The module uses an exposed thermal pad on the bottom side, intended for direct soldering to a large PCB copper area or thermal vias to inner ground planes. Layout Guideline #6 recommends a four-layer board to achieve optimal thermal resistance below 25°C/W.
What safety certifications does mEZDPD3603A-84EC meet?
The module meets EN55022 Class B conducted and radiated emissions standards when used with the recommended input filter (FB1 + CIN). It is not certified to UL/IEC 62368-1 or reinforced isolation standards-external isolation must be implemented at system level if required.
Is there a minimum load requirement for stable regulation?
No minimum load is specified. The device maintains regulation down to zero load, as confirmed by load regulation test data showing ±1% deviation from no-load to full-load conditions at 24 VIN/5 VOUT.
MEZDPD3603A-84EC 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):
- 2A
- 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-84EC FAQ
1.How can I place an order for MEZDPD3603A-84EC through Aetrix?
Please submit a Request for Quotation (RFQ) for MEZDPD3603A-84EC 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-84EC reliable?
The price and inventory of MEZDPD3603A-84EC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEZDPD3603A-84EC is usually 5 days.
3.What payment methods are accepted for MEZDPD3603A-84EC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEZDPD3603A-84EC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEZDPD3603A-84EC?
MEZDPD3603A-84EC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEZDPD3603A-84EC 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-84EC?
For technical support, including MEZDPD3603A-84EC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEZDPD3603A-84EC requirements.
6.How does Aetrix verify that MEZDPD3603A-84EC is sourced from the original manufacturer or authorized distributors?
All MEZDPD3603A-84EC 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-84EC meets industry standards.
7.What is the process for return or replacement of MEZDPD3603A-84EC?
All MEZDPD3603A-84EC units undergo pre-shipment inspection (PSI). If there is an issue with MEZDPD3603A-84EC, 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-84EC part is unused and in its original packaging.
Return procedure for MEZDPD3603A-84EC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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