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Monolithic Power Systems Inc. MIE1W0505BGLVH-3R-Z
- Part No.:
- MIE1W0505BGLVH-3R-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 12-PowerLFLGA
- Datasheet:
-
MIE1W0505BGLVH-3R-Z.pdf
- Description:
- 5V, 1W, REGULATED, 2.5KVRMS ISOL
- Quantity:
- Payment:
- Shipping:
Inventory:9,947
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Product details
Overview
MIE1W0505BGLVH-3R-Z from Monolithic Power Systems is a regulated, isolated 1W DC/DC module in LGA-12 (4mm×5mm) package, supporting 3V–5.5V input and selectable 5V/3.3V output with ±2% accuracy, 2.5kVRMS isolation, and integrated feedback eliminating optocouplers. It delivers up to 200mA at 5V output for isolated bias in digital isolators and RS-485 transceivers.
For engineers reviewing the MIE1W0505BGLVH-3R-Z datasheet, MIE1W0505BGLVH-3R-Z pinout, MIE1W0505BGLVH-3R-Z application, or MIE1W0505BGLVH-3R-Z equivalent, key selection criteria include input voltage range (3–5.5V), output regulation stability (0.4% load / 0.3% line regulation), thermal shutdown threshold (150°C), EN control logic (2V high / 0.4V low), and capacitive load tolerance (infinite).
Technical Context
The MIE1W0505BGLVH-3R-Z integrates power MOSFETs, transformer, and isolated feedback circuitry into a single monolithic IC, enabling transformer-based galvanic isolation without external optocouplers or reference ICs. Its internal soft-start and constant-current charging mode ensures stable startup into infinite capacitive loads.
It employs an isolation barrier with 5pF input-to-output capacitance and 100kV/μs common-mode transient immunity (CMTI), supporting robust operation in noisy industrial environments. Protection includes non-latching UVLO (2.6V rising threshold), continuous short-circuit protection, and over-temperature shutdown with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V to 5.5V - supports direct connection to Li-ion, USB, or 3.3V/5V system rails without pre-regulation. |
| Output Voltage | Selectable 5V or 3.3V - configured via VSEL pin (float/VOUT = 5V; GND2 = 3.3V), fixed post-startup. |
| Max Output Power | 1W - enables 200mA @ 5V or 75mA @ 3.3V with 3.3V input, sufficient for biasing multiple digital isolators. |
| Isolation Rating | 2.5kVRMS - certified per IEC 62368-1, suitable for reinforced insulation in industrial safety-critical systems. |
| Load Regulation | 0.4% - maintains output within ±20mV over full load range (0–200mA), critical for precision analog sensor interfaces. |
| Line Regulation | 0.3% - holds output deviation under ±15mV across 4.5–5.5V input, ensuring stable rail for isolated CAN/RS-485 PHYs. |
| Efficiency | 50.5% @ 5V/200mA - optimized for low-power isolated bias; higher than comparable flyback modules at light loads. |
| Operating Temp | −40°C to +125°C - junction-rated, enabling deployment in automotive engine bays or industrial motor drives. |
Pinout & Package
LGA-12 (4mm × 5mm) surface-mount package with exposed thermal pad on bottom side; requires controlled-impedance PCB layout with primary/secondary side separation per IEC 62368-1 creepage requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 11, 12 | GND1 | Primary-side power ground - connects to input capacitor return and VIN decoupling network. |
| 2, 3, 4 | GND2 | Secondary-side power ground - forms isolated return path for VOUT; must be physically separated from GND1. |
| 5, 6 | VOUT | Regulated isolated output - supplies 5V/3.3V to downstream isolated circuits; requires 22μF + 0.1μF local decoupling. |
| 7 | VSEL | Output voltage select - floating or tied to VOUT for 5V; tied to GND2 for 3.3V; logic locked after startup. |
| 8 | EN | Enable control - active-high (≥2V); must not float; enables/disables switching and reduces quiescent current to 7µA in shutdown. |
| 9, 10 | VIN | Input power - accepts 3–5.5V; requires 10μF + 0.1μF ceramic decoupling to GND1 for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Optocoupler-free regulation | Integrated isolated feedback eliminates external optocoupler and reference IC, reducing BOM count and board area by >30%. |
| Infinite capacitive load support | Internal soft-start and constant-current charging enable reliable startup into large output capacitance (e.g., 100μF+), avoiding inrush damage. |
| High CMTI | 100kV/μs common-mode transient immunity ensures stable operation in high-noise motor drive or PLC backplane environments. |
| CB & EMC compliance | CB-certified to IEC 62368-1 and meets EN55032 Class B emissions without external filtering, accelerating system-level certification. |
| Thermal protection | 150°C junction shutdown with 130°C restart hysteresis prevents permanent damage during sustained overload or poor heatsinking. |
Applications
| Industrial Sensor Isolation | Isolated RS-485/422 Bias |
|---|---|
Use Scenario: Powering isolated analog front-ends for pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Provides clean, regulated 5V bias to isolated ADC drivers and signal conditioners across galvanic barrier. Use Value: Eliminates ground loops and noise coupling; 0.4% load regulation ensures <±10mV supply variation over sensor full-scale range. | Use Scenario: Supplying isolated power to RS-485 transceivers in distributed I/O modules. IC Role / Device Role / Timing Role: Delivers 3.3V/200mA to MAX1487/MAX13487-level transceivers while maintaining 2.5kVRMS isolation between field and controller sides. Use Value: Enables direct integration without external DC/DC converters; CB certification simplifies end-equipment safety approval. |
| Digital Isolator Bias | 5G Remote Radio Unit (RRU) |
Use Scenario: Generating isolated 5V supply for ADuM140x/Si86xx digital isolators in motor control gate drivers. IC Role / Device Role / Timing Role: Powers secondary-side logic of dual-channel isolators driving IGBT/SiC gate drivers in inverters. Use Value: 125°C max operating temperature matches inverter ambient; LGA-12 footprint allows placement near isolator ICs to minimize loop inductance. | Use Scenario: Providing isolated 3.3V bias to fronthaul interface ICs (e.g., JESD204B SerDes) in outdoor 5G RRUs. IC Role / Device Role / Timing Role: Supplies regulated, low-noise 3.3V to high-speed data converters and clock buffers across isolation boundary. Use Value: 50mVpp output ripple at 200mA meets jitter-sensitive SerDes power requirements; −40°C start-up ensures cold-climate reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated DC/DC module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RECOM R1SX-0505-R | Unregulated output (±10%); 1.5kVRMS isolation; larger SIP-4 package; no EN or VSEL pins. | Suitable only where load regulation <±5% is acceptable; lacks programmability and compactness. | Choose only if cost sensitivity outweighs regulation accuracy and board space constraints. |
| Analog Devices ADUM6000ARWZ | 5kVRMS isolation; 0.5W output; integrated LDO improves ripple (<20mVpp); wider input (3–5.5V); same LGA-12 footprint. | Better suited for ultra-low-noise applications (e.g., precision ADCs); lower power limits use cases requiring >150mA. | Select when sub-20mVpp ripple and 5kVRMS are mandatory, accepting 50% lower output current. |
Compared with RECOM R1SX-0505-R and ADUM6000ARWZ, the MIE1W0505BGLVH-3R-Z uniquely balances 1W regulated output, 2.5kVRMS isolation, and LGA-12 size-enabling higher power density than ADUM6000 and tighter regulation than R1SX for industrial communications and sensor nodes.
Availability
MIE1W0505BGLVH-3R-Z is available at Aetrix Electronics and suitable for industrial automation systems, isolated RS-485/422 interfaces, and 5G remote radio units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIE1W0505BGLVH-3R-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, including DC/DC converters, LED drivers, and motor drivers, with global design and support centers.
The MIE series targets compact, regulated isolated power solutions for industrial, telecom, and automotive applications-designed to replace discrete flyback designs with monolithic integration, reduced EMI, and simplified certification.
FAQ
What is the maximum allowable input voltage for MIE1W0505BGLVH-3R-Z?
The absolute maximum input voltage is +6.5V relative to GND1. However, the recommended operating range is strictly 3V to 5.5V. Exceeding 5.5V risks triggering overvoltage stress on internal MOSFETs and may cause irreversible damage, even if within the absolute rating for brief transients.
Can VSEL be changed dynamically during operation?
No. VSEL logic is latched at startup; changing its state after power-on has no effect on output voltage. The device maintains the initially selected 5V or 3.3V regulation until next power cycle. This prevents unintended output transitions during runtime.
Does MIE1W0505BGLVH-3R-Z require external compensation components?
No external compensation is required. The internal feedback loop is fully compensated and optimized for the specified 10μF/0.1μF input and 22μF/0.1μF output capacitor combinations. Adding external compensation may destabilize regulation or degrade transient response.
How does short-circuit protection behave under sustained fault conditions?
Under sustained short-circuit, the device enters constant-current charging mode, limiting output current to ~200mA while holding VOUT near 2.2V. It remains in this safe state indefinitely without shutdown or latch-off, resuming normal regulation automatically once the fault is removed and VOUT recovers to ~2.7V.
What is the minimum recommended copper area for GND1 thermal relief?
A minimum of 100mm² of 1oz copper connected to GND1 pins (1, 11, 12) via ≥6 thermal vias (0.3mm diameter) is recommended. This achieves θJA ≈ 70°C/W on a 2-layer board, preventing thermal shutdown at full 1W load in still air at 70°C ambient.
Is the 2.5kVRMS isolation rating certified for continuous operation?
Yes. The 2.5kVRMS rating is qualified per IEC 62368-1 Annex D for 60-second dielectric withstand testing and applies to continuous operation under rated conditions. Production units undergo 100% 3kVRMS/1-second testing for process screening.
Can EN be driven directly from a 3.3V microcontroller GPIO?
Yes. With a 3.3V GPIO, EN receives ≥2V high-threshold margin and stays safely above the 0.4V low threshold. Input leakage is ≤−5µA, imposing negligible load. No level-shifting or pull-up resistors are needed-direct connection is fully supported and validated.
MIE1W0505BGLVH-3R-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 12-PowerLFLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Isolated Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output 1:
- 5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 200mA
- Power (Watts):
- 1 W
- Voltage - Isolation:
- 2.5 kV
- Applications:
- ITE (Commercial)
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-LGA (4x5)
- Control Features:
- -
- Approval Agency:
- CB
- Standard Number:
- -
MIE1W0505BGLVH-3R-Z FAQ
1.How can I place an order for MIE1W0505BGLVH-3R-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MIE1W0505BGLVH-3R-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 MIE1W0505BGLVH-3R-Z reliable?
The price and inventory of MIE1W0505BGLVH-3R-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIE1W0505BGLVH-3R-Z is usually 5 days.
3.What payment methods are accepted for MIE1W0505BGLVH-3R-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIE1W0505BGLVH-3R-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIE1W0505BGLVH-3R-Z?
MIE1W0505BGLVH-3R-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIE1W0505BGLVH-3R-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 MIE1W0505BGLVH-3R-Z?
For technical support, including MIE1W0505BGLVH-3R-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIE1W0505BGLVH-3R-Z requirements.
6.How does Aetrix verify that MIE1W0505BGLVH-3R-Z is sourced from the original manufacturer or authorized distributors?
All MIE1W0505BGLVH-3R-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 MIE1W0505BGLVH-3R-Z meets industry standards.
7.What is the process for return or replacement of MIE1W0505BGLVH-3R-Z?
All MIE1W0505BGLVH-3R-Z units undergo pre-shipment inspection (PSI). If there is an issue with MIE1W0505BGLVH-3R-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 MIE1W0505BGLVH-3R-Z part is unused and in its original packaging.
Return procedure for MIE1W0505BGLVH-3R-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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