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Monolithic Power Systems Inc. MEZDPD3603A-84EB
- Part No.:
- MEZDPD3603A-84EB
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 12-DIP Module
- Datasheet:
-
MEZDPD3603A-84EB.pdf
- Description:
- DC DC CONVERTER 5V
- Quantity:
- Payment:
- Shipping:
Inventory:2,708
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Product details
Overview
mEZDPD3603A-84EB from Monolithic Power Systems is a programmable, fully integrated 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 and embedded power rails.
For engineers reviewing the mEZDPD3603A-84EB datasheet, mEZDPD3603A-84EB pinout, mEZDPD3603A-84EB application, or mEZDPD3603A-84EB equivalent, this page provides verified technical context, real-world programmable parameters, thermal and efficiency performance at key load points, EN/PG/SYNC signal behavior, and guidance on OTP vs. RAM programming modes for production deployment.
Technical Context
The mEZDPD3603A-84EB integrates a synchronous buck controller, power MOSFETs, compensation network, and internal 5V LDO (VCC) into a single surface-mount DIP module. It supports I²C-based real-time register tuning of output voltage, current limit, switching frequency (typ. 500 kHz), and protection thresholds - all without external loop compensation components.
It implements hiccup-mode short-circuit protection, over-temperature shutdown at 175°C, and power-good (PG) and fault (FT) open-drain status outputs. The module uses one-time programmable (OTP) ROM for persistent configuration storage and volatile RAM for unlimited runtime reconfiguration via SDA/SCL.
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 systems. |
| Output Voltage Range | 0.6 V to 12 V - digitally programmable in fine steps; default factory setting is 5 V (mEZDPD3603A-0001). |
| Max Continuous Output Current | 3 A - sustained delivery under full thermal derating at 85°C ambient with proper PCB layout. |
| Peak Efficiency | 93.2 % at VIN=24 V, VOUT=12 V, full load, 800 kHz - enables high-density power conversion with minimal thermal overhead. |
| Switching Frequency | Typ. 500 kHz - balances EMI, inductor size, and efficiency; programmable up to 800 kHz for noise-sensitive applications. |
| Output Voltage Accuracy | ±1 % (typ.) - ensures stable regulation across line, load, and temperature for precision analog or FPGA core rails. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and extended-temperature embedded environments. |
Pinout & Package
Package: Standard DIP module, 16 mm × 23 mm × 6.5 mm, with 12 exposed terminals on bottom edge (2×6 layout). Designed for through-hole or surface-mount assembly with thermal pad grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SYNC | Synchronization Input | Accepts external clock to align switching frequency; enables multi-module phase interleaving. |
| 2 EN | Enable Control | Active-high logic input; controls soft-start and full device enable/disable with controlled rise/fall timing. |
| 3 GND | Power Ground | Main return path for input, output, and internal LDO; requires low-impedance connection to PCB ground plane. |
| 4 VIN | Input Supply | Primary DC input (4.5–36 V); routed with wide, short traces to minimize voltage drop and EMI. |
| 5 FT̅ | Fault Indicator | Open-drain output asserted low during over-current, over-temperature, or undervoltage lockout. |
| 6 PG | Power Good | Open-drain output asserted high when VOUT is within ±10 % regulation window after soft-start. |
| 7 ADD | I²C Address Select | Resistor-programmable pin to set unique I²C address (e.g., 21h–26h) for multi-module bus operation. |
| 8 GND | Power Ground | Second dedicated ground terminal; improves current return path separation and reduces ground bounce. |
| 9 VOUT | Regulated Output | Primary regulated DC output (0.6–12 V); connects directly to load with low-ESR bulk capacitance. |
| 10 VCC | Internal LDO Output | Stable 5 V output powering internal logic and external interface circuitry; requires local 1 µF decoupling. |
| 11 SDA | I²C Data Line | Bi-directional, open-drain data line for programming registers and reading telemetry (e.g., temperature, current). |
| 12 SCL | I²C Clock Line | Input-only clock line; supports standard-mode (100 kHz) and fast-mode (400 kHz) I²C communication. |
Key Features
| Feature | Design Value |
|---|---|
| One-Time Programmable (OTP) Memory | Persists critical settings (VOUT, IOUT limit, FSW) across power cycles; programmed once at 8–36 V VIN. |
| Unlimited RAM Register Writes | Enables dynamic runtime adjustment of output voltage, current limit, and protection thresholds via I²C. |
| Integrated 5 V LDO (VCC) | Eliminates need for external bias supply; powers internal logic and can source external interface ICs. |
| EN/PG/FT Status Signals | Provides hardware-level sequencing control and system-level fault reporting without software polling. |
| EN55022 Class B Compliance | Achieved with integrated filtering and layout-optimized DIP footprint - no external EMI filter required. |
Applications
| Industrial PLC I/O Power | FPGA Core & Auxiliary Rails |
|---|---|
|
Use Scenario: Powering isolated digital I/O modules in programmable logic controllers requiring stable 3.3 V or 5 V rails with tight load transient response. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering 3 A at 3.3 V or 5 V with hiccup-mode SCP and PG signaling for system diagnostics. Use Value: Eliminates discrete buck controller + MOSFET + compensation design; reduces BOM count by ≥7 components and layout area by >40 %. |
Use Scenario: Supplying configurable core (0.8–1.2 V) and auxiliary (1.8 V, 3.3 V) rails for Xilinx or Intel FPGAs in test equipment and prototyping platforms. IC Role / Device Role / Timing Role: Programmable multi-rail source supporting dynamic voltage scaling and independent current limiting per rail via I²C GUI. Use Value: Enables rapid rail validation during FPGA firmware bring-up without hardware respins; OTP stores final production configuration. |
| Automated Test Equipment (ATE) | Medical Diagnostic Imaging Subsystem |
|
Use Scenario: Providing clean, low-noise 5 V and 12 V supplies for precision ADC/DAC signal chains and relay drivers in modular ATE racks. IC Role / Device Role / Timing Role: High-efficiency (≥90 % at 5 V/3 A), low-ripple (<30 mVpp) DC/DC source synchronized via SYNC pin to avoid beat frequencies with sampling clocks. Use Value: Meets EN55022 Class B emissions without external filters; SYNC enables deterministic switching alignment across multiple channels. |
Use Scenario: Powering imaging sensor interfaces and low-power microcontrollers in portable ultrasound or patient monitoring devices. IC Role / Device Role / Timing Role: Compact, thermally robust power module operating reliably from −40 °C to +85 °C with built-in OTP safety-critical configuration lock. Use Value: Reduces qualification effort by integrating safety-relevant parameters (OTP-set OCP/OTP-set UVLO) into certified module form factor. |
Availability
mEZDPD3603A-84EB is available at Aetrix Electronics and suitable for industrial automation, FPGA power management, and medical subsystems requiring stable component supply, guaranteed OTP programming consistency, and long-term lifecycle support.
Supply support for mEZDPD3603A-84EB 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 operations.
The mEZD family delivers fully integrated, programmable DC/DC power modules targeting rapid prototyping, industrial control, and space-constrained embedded systems where design cycle time and reliability are critical.
FAQ
What is the difference between OTP and RAM programming on the mEZDPD3603A-84EB?
OTP (one-time programmable) memory stores permanent configuration values like output voltage and current limit that persist across power cycles and cannot be rewritten. RAM registers allow unlimited runtime changes via I²C for evaluation or dynamic adjustment, but settings are lost on power loss unless saved to OTP.
Can the mEZDPD3603A-84EB be used without the GUI or USB-I²C adapter?
Yes - it operates with default factory settings (5 V, 3 A) immediately upon applying VIN and asserting EN. The GUI and EVKT-USBI2C-02 kit are optional for configuration; direct I²C commands from a host MCU are fully supported using documented register maps.
What thermal management is required for full 3 A output at 85°C ambient?
A minimum 4-layer PCB with internal ground/power planes and ≥6 thermal vias under the module's ground pads is required. Derating begins above 60°C ambient; at 85°C, maximum continuous output is 2.4 A unless forced-air cooling is applied.
Does the mEZDPD3603A-84EB support parallel operation for higher current?
No - it does not include current-sharing circuitry or master/slave synchronization beyond SYNC pin input. Parallel use is not recommended due to potential load imbalance and lack of coordinated fault response.
How is the I²C address configured, and what addresses are supported?
The ADD pin sets the 7-bit I²C address via an external resistor to GND. Supported addresses are 21h–26h (hex), corresponding to resistor values from 0 kΩ to 137.5 kΩ. Each value selects a unique address for multi-module bus operation.
What is the purpose of the VCC pin, and can it power external circuitry?
VCC is the output of an internal 5 V, 50 mA LDO powered from VIN. It supplies internal logic and can drive light external loads such as I²C pull-ups or level shifters, but must be decoupled with ≥1 µF ceramic capacitor placed adjacent to the pin.
Is EN pin active-high or active-low, and does it support soft-start control?
The EN pin is active-high with built-in soft-start functionality. When pulled high, the device ramps VOUT linearly over ~1 ms to prevent inrush current; pulling EN low disables output and resets internal state, including PG deassertion.
MEZDPD3603A-84EB 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:
- 5V
- 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-84EB FAQ
1.How can I place an order for MEZDPD3603A-84EB through Aetrix?
Please submit a Request for Quotation (RFQ) for MEZDPD3603A-84EB 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-84EB reliable?
The price and inventory of MEZDPD3603A-84EB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEZDPD3603A-84EB is usually 5 days.
3.What payment methods are accepted for MEZDPD3603A-84EB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEZDPD3603A-84EB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MEZDPD3603A-84EB?
MEZDPD3603A-84EB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MEZDPD3603A-84EB 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-84EB?
For technical support, including MEZDPD3603A-84EB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEZDPD3603A-84EB requirements.
6.How does Aetrix verify that MEZDPD3603A-84EB is sourced from the original manufacturer or authorized distributors?
All MEZDPD3603A-84EB 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-84EB meets industry standards.
7.What is the process for return or replacement of MEZDPD3603A-84EB?
All MEZDPD3603A-84EB units undergo pre-shipment inspection (PSI). If there is an issue with MEZDPD3603A-84EB, 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-84EB part is unused and in its original packaging.
Return procedure for MEZDPD3603A-84EB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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