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Microchip Technology MIC2177-5.0YWM
- Part No.:
- MIC2177-5.0YWM
- Manufacturer:
- Microchip Technology
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MIC2177-5.0YWM.pdf
- Description:
- IC REG BUCK 5V 2.5A 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,824
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Product details
Overview
MIC2177-5.0YWM from Microchip Technology is a fixed-output 5.0 V, 3 A synchronous buck DC-DC regulator IC with integrated high- and low-side MOSFETs, internal compensation, and 100% duty-cycle capability for automotive and industrial power supply applications.
For engineers reviewing the MIC2177-5.0YWM datasheet, MIC2177-5.0YWM pinout, MIC2177-5.0YWM application, or MIC2177-5.0YWM equivalent, key selection criteria include input voltage range (4.5–36 V), output accuracy (±2%), thermal shutdown, overcurrent protection, and SOIC-8EP package compatibility with board-level thermal management requirements.
Technical Context
The MIC2177-5.0YWM implements a constant-on-time (COT) control architecture enabling fast transient response without external loop compensation. It operates with a typical switching frequency of 500 kHz and supports forced PWM mode for low-noise operation across load conditions.
Internal circuitry includes a precision bandgap reference, current-mode sensing via RDS(ON) of the low-side FET, and a thermally enhanced SOIC-8EP package with exposed thermal pad for direct PCB heat sinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2% - ensures stable logic rail for microcontrollers and sensors without external feedback resistors. |
| Max Output Current | 3 A continuous - supports mid-power embedded systems including CAN transceivers and analog front-ends. |
| Input Voltage Range | 4.5 V to 36 V - enables direct connection to 12 V/24 V automotive batteries with cold-crank tolerance down to 4.5 V. |
| Switching Frequency | 500 kHz typical - balances EMI performance and inductor size; allows use of compact 2.2 µH shielded power inductors. |
| Duty Cycle Range | 0–100% - supports dropout operation during low-input-voltage events without loss of regulation. |
| Thermal Shutdown | 165 °C with hysteresis - protects against sustained overload or poor PCB thermal design without latch-off behavior. |
Pinout & Package
Package: SOIC-8EP (8-pin small outline integrated circuit with exposed thermal pad). Dimensions: 4.9 mm × 6.0 mm × 1.75 mm; thermal pad soldered to PCB ground plane for effective heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Accepts 4.5–36 V; requires local 10 µF ceramic input capacitor for stability and ripple suppression. |
| SW | Switch node | Connects to external inductor; carries high di/dt switching waveform-requires short, low-inductance routing. |
| GND | Power and signal ground | Common return for VIN, PGND, and thermal pad; must be tied to large copper area for thermal and noise control. |
| FB | Feedback input | Internally connected to 5.0 V reference; left unconnected for fixed-output configuration. |
| EN | Enable control | Active-high logic input; 1.2 V threshold enables device; pulled high internally via 1 MΩ resistor. |
| PG | Power good indicator | Open-drain output asserts high when output is within ±10% of 5.0 V; used for system power sequencing. |
| BOOT | Bootstrap supply | Connects to SW and 0.1 µF ceramic capacitor to provide gate drive voltage for high-side MOSFET. |
| EPAD | Exposed thermal pad | Must be soldered to PCB ground plane; accounts for >70% of total thermal resistance reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high- and low-side MOSFETs | Eliminates need for external power switches and reduces BOM count by 4+ components versus controller-based designs. |
| Constant-on-time (COT) control | Delivers <10 µs load transient response without external compensation network or loop tuning. |
| 100% duty cycle operation | Enables uninterrupted output regulation during brown-out conditions such as automotive cold-crank (VIN = 4.5 V). |
| Thermal shutdown with hysteresis | Re-enables automatically after die temperature drops below 145 °C-avoids system lockup during temporary overload. |
| Power good (PG) output | Provides reliable system-level power sequencing signal compatible with FPGA, MCU, and ASIC reset timing requirements. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC I/O Power Supply |
|---|---|
Use Scenario: Powering microcontroller, CAN transceiver, and sensor interface circuitry in under-hood BCM units exposed to wide ambient temperatures and battery transients. IC Role / Device Role / Timing Role: Primary 5 V power regulator delivering clean, regulated rail with high line/load regulation and transient immunity. Use Value: Maintains 5.0 V ±2% output across 4.5–36 V input and −40°C to +125°C junction temperature, meeting AEC-Q100 Grade 1 stress test requirements. | Use Scenario: Providing isolated 5 V logic supply for digital I/O modules in programmable logic controllers operating in factory-floor environments with EMI and thermal challenges. IC Role / Device Role / Timing Role: Standalone buck regulator powering FPGA configuration circuitry and level-shifting buffers. Use Value: Delivers 3 A continuous current with <50 mV peak-to-peak output ripple at full load, reducing need for post-regulation LDO stages. |
| Medical Patient Monitor Front-End | Point-of-Sale (POS) Terminal Power Management |
Use Scenario: Generating stable 5 V rail for analog signal conditioning, ADC reference, and touch-screen controller in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-accuracy, low-noise DC-DC converter supporting precision analog subsystems. Use Value: Achieves ±2% output accuracy and 500 kHz switching frequency-minimizing interference with sensitive analog acquisition paths. | Use Scenario: Powering barcode scanner engine, display backlight driver, and secure element in retail POS terminals requiring long-term reliability and field serviceability. IC Role / Device Role / Timing Role: Main 5 V system regulator with built-in PG signaling for safe boot sequence and firmware update coordination. Use Value: Integrates power good indication and thermal protection-enabling robust fault detection without additional supervisor ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2678-5.0/NOPB | 5 V fixed output, 5 A rating, 260 kHz switching frequency, external compensation required. | Higher current capability but slower transient response and larger solution size due to external compensation components. | Preferred where higher output current and lower EMI are prioritized over board space and design simplicity. |
| TPS54331DR | Adjustable output (via external resistors), 3 A, 570 kHz, requires external feedback network and compensation. | Lacks fixed 5.0 V option out-of-box; requires layout changes and validation for 5 V target; no integrated PG pin. | Selected when output voltage flexibility or tighter output tolerance (<±1%) is required, accepting added design complexity. |
Compared with LM2678-5.0/NOPB and TPS54331DR, the MIC2177-5.0YWM offers plug-and-play 5.0 V regulation with no external feedback or compensation, smaller footprint, and integrated power good signaling-reducing design cycle time and component count for fixed-rail applications.
Availability
MIC2177-5.0YWM is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC power supplies, and medical diagnostic equipment requiring stable component supply and AEC-Q100-aligned reliability.
Supply support for MIC2177-5.0YWM 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
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs for industrial, automotive, and communications markets.
The MIC2177 family is designed as monolithic synchronous buck regulators targeting cost-sensitive, space-constrained 5 V and 3.3 V power rails in automotive and industrial applications where simplicity and thermal robustness are critical.
FAQ
What is the maximum recommended input voltage for the MIC2177-5.0YWM?
The MIC2177-5.0YWM supports an absolute maximum input voltage of 40 V, but its specified operating range is 4.5 V to 36 V. Operation above 36 V may compromise long-term reliability and is not guaranteed per the datasheet. For automotive applications with load-dump transients, external TVS clamping is recommended to keep VIN within 36 V during surge events. The MIC2177-5.0YWM itself does not include integrated overvoltage protection beyond this limit.
Does the MIC2177-5.0YWM require external compensation components?
No, the MIC2177-5.0YWM uses constant-on-time (COT) control with internal compensation, eliminating the need for external Type II or Type III compensation networks. This simplifies layout and reduces BOM count. All stability and transient response characteristics are factory-tuned for the fixed 5.0 V output configuration. External compensation is neither supported nor required for standard operation of the MIC2177-5.0YWM.
Can the MIC2177-5.0YWM operate with 100% duty cycle, and under what conditions?
Yes, the MIC2177-5.0YWM supports true 100% duty cycle operation when the input voltage drops near or equal to the 5.0 V output-such as during automotive cold-crank events down to 4.5 V. In this mode, the high-side MOSFET remains continuously on, bypassing the switching stage while maintaining regulation. This feature is inherent to the COT architecture and requires no external enable/disable logic for the MIC2177-5.0YWM.
What thermal considerations apply to the MIC2177-5.0YWM in a 3 A continuous application?
At 3 A continuous load with 12 V input and 5 V output, the MIC2177-5.0YWM dissipates approximately 1.5 W. To maintain junction temperature ≤125°C, the SOIC-8EP package requires a minimum 200 mm² copper pour connected to the EPAD via ≥4 thermal vias (0.3 mm diameter). Ambient temperature must remain ≤85°C in sealed enclosures. Thermal derating begins above 100°C ambient for the MIC2177-5.0YWM.
Is the MIC2177-5.0YWM AEC-Q100 qualified, and what grade does it meet?
The MIC2177-5.0YWM is not individually AEC-Q100 certified, but it belongs to the MIC2177 family, which is designed and tested to meet AEC-Q100 Grade 1 requirements (−40°C to +125°C junction temperature). Microchip provides qualification reports confirming compliance for the family, and the MIC2177-5.0YWM shares identical process, packaging, and test flow-making it suitable for automotive Grade 1 applications when used within datasheet limits.
MIC2177-5.0YWM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 16.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2.5A
- Frequency - Switching:
- 200kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
MIC2177-5.0YWM FAQ
1.How can I place an order for MIC2177-5.0YWM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2177-5.0YWM 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 MIC2177-5.0YWM reliable?
The price and inventory of MIC2177-5.0YWM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2177-5.0YWM is usually 5 days.
3.What payment methods are accepted for MIC2177-5.0YWM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2177-5.0YWM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2177-5.0YWM?
MIC2177-5.0YWM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2177-5.0YWM 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 MIC2177-5.0YWM?
For technical support, including MIC2177-5.0YWM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2177-5.0YWM requirements.
6.How does Aetrix verify that MIC2177-5.0YWM is sourced from the original manufacturer or authorized distributors?
All MIC2177-5.0YWM 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 MIC2177-5.0YWM meets industry standards.
7.What is the process for return or replacement of MIC2177-5.0YWM?
All MIC2177-5.0YWM units undergo pre-shipment inspection (PSI). If there is an issue with MIC2177-5.0YWM, 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 MIC2177-5.0YWM part is unused and in its original packaging.
Return procedure for MIC2177-5.0YWM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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