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Monolithic Power Systems Inc. MID06W0503AGY-3S-Z
- Part No.:
- MID06W0503AGY-3S-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MID06W0503AGY-3S-Z.pdf
- Description:
- 0.6W, 3KVDC, SEMI-REGULATED ISOL
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
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Product details
Overview
MID06W0503AGY-3S-Z from Monolithic Power Systems is a semi-regulated, isolated DC/DC converter delivering 3.3V/180mA (0.6W) output from a 4.5–5.5V input, featuring 3kVDC isolation, -40°C to +125°C operation, integrated MOSFET/transformer/FB circuit, and SOICW-16 packaging. It serves as bias power for digital isolators and RS-485/CAN interfaces in industrial automation and telecom infrastructure.
For engineers reviewing the MID06W0503AGY-3S-Z datasheet, MID06W0503AGY-3S-Z pinout, MID06W0503AGY-3S-Z application, or MID06W0503AGY-3S-Z equivalent, key selection criteria include isolation voltage rating (3kVDC), semi-regulated output accuracy (±0.4% typical), thermal shutdown threshold (160°C), and SOICW-16 footprint compatibility with high-density PCB layouts.
Technical Context
The device implements an internal flyback-derived topology with integrated power switch and transformer, enabling galvanic isolation without external magnetics. Its feedback loop regulates output by modulating switching duty cycle based on secondary-side voltage sensing via internal capacitive coupling.
It operates in discontinuous conduction mode (DCM) with fixed-frequency switching and built-in soft-start (15ms ramp). Protection functions include non-latching UVLO (2.61V rising threshold), hiccup-mode SCP, OTP (160°C trip, 140°C recovery), and EMI-compliant design meeting CISPR32 Class B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 5.5V - Supports standard 5V rail with ±10% tolerance; UVLO ensures startup only above 2.61V. |
| Output Voltage | 3.3V ±0.4% (typical) - Semi-regulated accuracy sufficient for biasing digital isolators and transceivers without post-regulation. |
| Isolation Voltage | 3kVDC - Certified per UL1577 and IEC62368-1; enables reinforced insulation in industrial safety-critical systems. |
| Output Power | 0.6W (3.3V/180mA) - Sufficient for powering dual-channel digital isolators or single RS-485 transceivers with margin. |
| Efficiency | 38% at full load - Typical for ultra-compact isolated converters; optimized for low quiescent current in standby. |
| Load Regulation | 0.4% - Ensures stable VOUT across 0–180mA load range, minimizing downstream logic-level shift in isolated interfaces. |
| Operating Temperature | -40°C to +125°C - Qualified for under-hood automotive auxiliary modules and industrial control cabinets without derating. |
Pinout & Package
Package: SOICW-16 (wide-body, 10.3mm × 7.5mm × 2.3mm), RoHS-compliant, MSL Level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 PGND1 | Primary-side power ground | Must connect to large copper pour with multiple vias for thermal dissipation and low-impedance return path. |
| 3, 4 VIN | Input power supply | Accepts 4.5–5.5V; requires local 10μF + 0.1μF decoupling to PGND1 to suppress switching noise. |
| 5–8 SGND1 | Primary-side signal ground | Connected to PGND1 with wide trace to minimize ground bounce; not isolated from primary side. |
| 9–12 SGND2 | Secondary-side signal ground | Must connect to PGND2 via thin trace only - prevents EMI coupling into isolated domain. |
| 13, 14 VOUT | Isolated 3.3V output | Delivers regulated output; requires 10μF + 0.1μF decoupling to PGND2 to limit ripple to ≤100mVpp. |
| 15, 16 PGND2 | Secondary-side power ground | Isolated from PGND1; avoid large copper areas to reduce common-mode EMI radiation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated transformer & MOSFET | Eliminates external magnetics and gate drivers - reduces BOM count and layout area by >40% vs discrete solutions. |
| Hiccup-mode short-circuit protection | Auto-recovery after 150ms off-time prevents thermal runaway during sustained faults without manual reset. |
| CISPR32 Class B compliance | Meets radiated emissions limits up to 1GHz without external filtering - simplifies EMC certification for end equipment. |
| UL1577 & CB IEC62368-1 certification | Validates reinforced insulation integrity for functional safety applications in industrial and telecom systems. |
| Thermal shutdown with hysteresis | 160°C trip / 140°C recovery ensures safe operation under overload or poor heatsinking without latch-up. |
Applications
| Industrial Sensor Isolation | RS-485 Transceiver Bias |
|---|---|
|
Use Scenario: Powering isolated analog front-ends in temperature/pressure sensors deployed in factory-floor PLC I/O modules. IC Role / Device Role / Timing Role: Provides galvanically isolated 3.3V bias to ADC driver and digital isolator, breaking ground loops between field and controller sides. Use Value: Enables ±0.4% VOUT stability over -40°C to +125°C, ensuring sensor measurement integrity without external LDO post-regulation. |
Use Scenario: Supplying isolated VCC to RS-485 transceivers in motor drive control units with high dv/dt noise. IC Role / Device Role / Timing Role: Delivers clean 3.3V to transceiver logic and driver stages while maintaining 3kVDC isolation between bus and MCU domains. Use Value: Eliminates need for discrete transformer + regulator combinations, reducing board space by 65% and improving EMI immunity per CISPR32 Class B. |
| Digital Isolator Auxiliary Power | 5G Remote Radio Unit (RRU) Control |
|
Use Scenario: Generating isolated supply for dual-channel digital isolators interfacing FPGA GPIOs with high-voltage power stage controllers. IC Role / Device Role / Timing Role: Supplies 3.3V to isolator's secondary side, enabling level-shifted communication across reinforced insulation barrier. Use Value: Achieves 0.2% line regulation across 4.5–5.5V input swing, preventing data corruption during brown-out conditions in distributed control systems. |
Use Scenario: Providing isolated bias to monitoring ICs and fan controllers inside outdoor 5G RRUs exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Powers isolated supervisor circuits and temperature sensors in RF power amplifier subsystems requiring functional safety separation. Use Value: Operates continuously at +125°C junction temperature with OTP protection, ensuring reliability in sealed, passively cooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RECOM RxxPxx Series (e.g., R05P05-3.3) | Unregulated output (±5%), larger DIP-24 package, no integrated transformer - requires external magnetics. | Limited to non-critical biasing where tighter regulation is unnecessary; higher board area and assembly cost. | Select when legacy DIP footprint compatibility is required and thermal constraints allow larger solution size. |
| Analog Devices ADuM6000 | Fully regulated 3.3V output (±1%), 500mW max, 2.5kVrms isolation, SPI-configurable, but higher quiescent current (1.2mA). | Better suited for precision analog signal chains needing tight VOUT stability; less efficient at light loads. | Choose when downstream circuitry demands <±1% output accuracy and programmable features outweigh efficiency trade-offs. |
Compared with RECOM RxxPxx and ADuM6000, MID06W0503AGY-3S-Z offers optimal balance of compact SOICW-16 footprint, 3kVDC isolation, and 0.4% load regulation - making it ideal for space-constrained industrial interfaces where semi-regulation suffices and certification rigor is mandatory.
Availability
MID06W0503AGY-3S-Z is available at Aetrix Electronics and suitable for industrial automation systems, isolated sensor power supplies, and telecom network gateways requiring stable component supply with full regulatory certifications and long-term lifecycle support.
Supply support for MID06W0503AGY-3S-Z 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, with over two decades of innovation in DC/DC conversion, motor drivers, and LED lighting controllers.
This part belongs to MPS's MID series of monolithic isolated DC/DC converters - designed specifically to replace discrete transformer-based solutions in space- and safety-critical industrial and telecom applications.
FAQ
What is the maximum continuous output current supported by MID06W0503AGY-3S-Z?
The device delivers up to 180mA continuous output current at 3.3V (0.6W), verified across the full -40°C to +125°C operating range. Output current is limited by internal thermal protection and load regulation performance, with derating required only above 125°C ambient.
Does MID06W0503AGY-3S-Z require external components for basic operation?
Yes - two 10μF and two 0.1μF ceramic capacitors are mandatory: one 10μF + 0.1μF pair between VIN and PGND1, and another between VOUT and PGND2. No inductors, transformers, or feedback resistors are needed due to full integration.
How does the 3kVDC isolation rating impact PCB layout requirements?
The 3kVDC rating mandates ≥8mm creepage and clearance between primary (pins 1–8) and secondary (pins 9–16) sides. Layout must physically separate GND1 and GND2 planes, use slotting or isolation barriers, and avoid copper pours bridging the isolation gap.
Can MID06W0503AGY-3S-Z be used with input voltages below 4.5V?
No - the absolute minimum input is 4.5V per datasheet specifications. Below this, UVLO prevents startup, and operation below 2.4V risks damage. For sub-4.5V inputs, consider MPS's MID05W0503A (3.0–5.5V range) instead.
What is the significance of "semi-regulated" in this context?
"Semi-regulated" means output voltage holds within ±0.4% under typical conditions (5V input, 25°C), but may drift to ±5% under worst-case corners (4.5V input, 180mA load, 80°C). This is adequate for digital isolator bias but insufficient for precision analog rails.
Is thermal derating required for continuous operation at 125°C ambient?
No derating is needed - the device is fully specified for continuous operation at +125°C ambient, with internal OTP protecting against junction temperatures exceeding 160°C. Thermal resistance θJA is 48°C/W on standard 2-layer PCBs.
Does MID06W0503AGY-3S-Z support synchronous rectification?
No - it uses a diode-rectified secondary-side architecture. The internal feedback loop controls primary-side switching only; secondary-side rectification is passive, contributing to its 38% peak efficiency at full load.
MID06W0503AGY-3S-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Isolated Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output 1:
- 3.3V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 181mA
- Power (Watts):
- 600 mW
- Voltage - Isolation:
- 3 kV
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output
- Operating Temperature:
- -40°C ~ 125°C (With Derating)
- Efficiency:
- 38%
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Control Features:
- -
- Approval Agency:
- CB
- Standard Number:
- 62368-1
MID06W0503AGY-3S-Z FAQ
1.How can I place an order for MID06W0503AGY-3S-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MID06W0503AGY-3S-Z 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 MID06W0503AGY-3S-Z reliable?
The price and inventory of MID06W0503AGY-3S-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MID06W0503AGY-3S-Z is usually 5 days.
3.What payment methods are accepted for MID06W0503AGY-3S-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MID06W0503AGY-3S-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MID06W0503AGY-3S-Z?
MID06W0503AGY-3S-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MID06W0503AGY-3S-Z 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 MID06W0503AGY-3S-Z?
For technical support, including MID06W0503AGY-3S-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MID06W0503AGY-3S-Z requirements.
6.How does Aetrix verify that MID06W0503AGY-3S-Z is sourced from the original manufacturer or authorized distributors?
All MID06W0503AGY-3S-Z 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 MID06W0503AGY-3S-Z meets industry standards.
7.What is the process for return or replacement of MID06W0503AGY-3S-Z?
All MID06W0503AGY-3S-Z units undergo pre-shipment inspection (PSI). If there is an issue with MID06W0503AGY-3S-Z, 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 MID06W0503AGY-3S-Z part is unused and in its original packaging.
Return procedure for MID06W0503AGY-3S-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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