Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
MIC2185YM-TR
Microchip Technology
IC REG CTRLR BUCK 16SOIC
2300 Pcs New Original In Stock
Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-SOIC
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (170 Ratings)
MIC2185YM-TR
Product Overview
1383391
DiGi Electronics Part Number
MIC2185YM-TR-DGManufacturer
Microchip Technology
MIC2185YM-TR
Description
IC REG CTRLR BUCK 16SOICInventory
2300 Pcs New Original In Stock
Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-SOIC
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
MIC2185YM-TR Technical Specifications
Category
Power Management (PMIC), DC DC Switching Controllers
Packaging
-
Series
-
Product Status
Obsolete
Output Type
Transistor Driver
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Number of Outputs
1
Output Phases
1
Voltage - Supply (Vcc/Vdd)
2.9V ~ 14V
Frequency - Switching
400kHz
Duty Cycle (Max)
100%
Synchronous Rectifier
No
Clock Sync
Yes
Serial Interfaces
-
Control Features
Enable, Frequency Control, Soft Start
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.154", 3.90mm Width)
Supplier Device Package
16-SOIC
Base Product Number
MIC2185
Datasheet & Documents
HTML Datasheet
MIC2185YM-TR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MIC2185YMTR
MIC2185YMTR-DG
MIC2185YM TR-DG
MIC2185YM TR
Standard Package
2,500
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
La livraison a été toujours ponctuelle, ce qui est très appréciable pour la gestion de mes projets.
Dec 02, 2025
スマホからのアクセスでも操作が快適で、どこでも気軽に買い物ができました。
Dec 02, 2025
I trust DiGi Electronics because of their unwavering commitment to quality and service.
Dec 02, 2025
Great shipping speed and solid packaging—highly satisfied.
Dec 02, 2025
Affordable and friendly — that's the perfect description of my experience with DiGi Electronics.
Dec 02, 2025
DiGi Electronics offers fantastic prices with packaging that keeps products safe during transit.
Dec 02, 2025
Fast shipping, and the support team was very helpful when I needed assistance.
Dec 02, 2025
Their pricing benefits have played a crucial role in our growth.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Can the MIC2185YM-TR be used in a design requiring synchronous rectification, and what are the risks if it's replaced with a synchronous controller like the MIC2196YM-TR?
The MIC2185YM-TR does not support synchronous rectification as it drives an external N-channel FET with a bootstrap gate driver and requires a catch diode. Replacing it with the MIC2196YM-TR introduces synchronous rectification capability, which improves efficiency but requires careful layout to avoid shoot-through and increased complexity in gate drive timing. If you replace the MIC2185YM-TR with the MIC2196YM-TR, ensure your PCB layout and gate drive strength support low-side FET switching, and verify thermal performance under light loads where synchronous controllers may suffer from reverse current. The MIC2185YM-TR remains suitable for cost-sensitive, moderate-efficiency applications where the simplicity of asynchronous topology is preferred.
Is the MIC2185YM-TR suitable for high-density board designs with tight thermal constraints, and how does its SOIC package affect thermal performance?
The MIC2185YM-TR uses a standard 16-SOIC package without an exposed thermal pad, which limits its thermal dissipation capability compared to modern QFN or TDFN packages. In high-density designs with limited airflow and multiple power stages, the MIC2185YM-TR may exhibit elevated junction temperatures, especially when driving high gate-charge MOSFETs at 400kHz. To mitigate thermal risk, use generous copper pours on VCC, GND, and SW nodes, minimize via thermal resistance, and consider derating maximum ambient temperature below 85°C. For thermally constrained layouts, consider migrating to a newer controller with better thermal performance, even if pin compatibility is not direct.
What design considerations are required when replacing the obsolete MIC2185YM-TR with the MIC2186YM-TR in an existing buck converter?
When replacing the MIC2185YM-TR with the MIC2186YM-TR, verify compatibility in switching frequency range and enable logic thresholds, as the MIC2186YM-TR has similar 400kHz nominal frequency but may differ in soft-start duration and light-load behavior. The MIC2186YM-TR also lacks internal synchronous rectification, making it a closer pin-compatible substitute than the MIC2196YM-TR. However, check bootstrap diode selection and gate drive strength, as drive capability differences may affect FET turn-on losses. Update compensation networks if loop response changes, and re-validate efficiency and thermal performance under full load. Always confirm long-term availability of the MIC2186YM-TR before committing to re-design.
How does the 100% duty cycle capability of the MIC2185YM-TR impact performance in low-dropout applications, and what are the trade-offs?
The MIC2185YM-TR supports up to 100% duty cycle, enabling operation in low-dropout scenarios where input voltage approaches the output (e.g., 3.3V to 3.0V conversion), which is advantageous for maintaining regulation during brownout conditions. However, in 100% duty mode, the converter effectively becomes a pass-through, losing PWM control and ripple regulation. Ensure your application can tolerate increased output ripple and reduced transient response during dropout. Additionally, since the MIC2185YM-TR lacks synchronous rectification, it cannot regulate down to 0% duty cycle efficiently — this asymmetry limits performance in wide input range designs. Use input filtering and voltage margining to reduce dependency on sustained 100% duty operation.
What are the reliability risks of using the obsolete MIC2185YM-TR in new designs, and how does its clock synchronization feature affect system-level EMI when paralleling controllers?
Using the obsolete MIC2185YM-TR in new designs carries supply chain risks due to limited future availability, increasing cost and lifecycle management concerns. For long-term reliability, consider redesigning with an active-part alternative such as the MIC2186YM-TR. Regarding EMI, the MIC2185YM-TR's clock sync feature allows external synchronization to a system master clock, which helps control switching noise in noisy mixed-signal environments. When synchronizing multiple MIC2185YM-TR devices, ensure proper PCB layout isolation between clock lines and power stages to avoid coupling noise, and use matched trace lengths to prevent phase skew. However, since it lacks phase interleaving support, paralleled units will increase input ripple current, requiring larger input capacitance to maintain reliability in high-current applications.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MIC2185YM-TR CAD Models
Microchip Technology MIC2185YM-TR PCB symbols & footprints
productDetail
