MIC94041YFL Microchip Integrated Circuit (Other) In Stock
The MIC94041YFL is a single-channel P-channel MOSFET power switch from Microchip capable of sourcing up to 3 A continuous current. It integrates a low on-resistance driver stage in an ultra-compact 4-pin 1.2 mm × 1.2 mm MLF package suited for space-constrained portable designs. The device handles load switching and inrush current control in USB power delivery, battery-powered devices, and distributed power rails.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- MIC94041YFL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7020(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MIC94041YFL?
- P-channel MOSFET driver sourcing up to 3 A enables high-current load switching from a single IC
- Ultra-compact 4-pin MLF package measuring 1.2 mm × 1.2 mm minimizes PCB footprint
- 260°C peak reflow temperature compatibility simplifies standard SMT assembly processes
- Source-output configuration simplifies high-side switch designs without external gate-drive circuits
- Single-channel architecture reduces BOM complexity for discrete load-switching applications
What is MIC94041YFL used for?
The MIC94041YFL is well suited for USB power delivery circuits and portable consumer electronics where compact, high-current load switching is required within a tiny 1.2 mm × 1.2 mm footprint. It manages power rail sequencing and inrush current limiting in tablet computers, wireless earbuds, and wearable devices operating from single-cell lithium batteries. Industrial IoT modules and handheld instrumentation also use this part for controlled power-down of peripheral subsystems to extend battery life.
What are the specifications of MIC94041YFL?
| YTEOL | 5.8 |
| Interface IC Type | BUFFER OR INVERTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | S-XQCC-N4 |
| JESD-609 Code | e4 |
| Output Current Flow Direction | SOURCE |
| Package Body Material | UNSPECIFIED |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Position | QUAD |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MIC94041YFL datasheet?
MIC94041YFL Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MIC94041YFL?
Compatible alternatives and drop-in replacements for MIC94041YFL:
Frequently Asked Questions
What continuous output current can the MIC94041YFL switch, and how does that compare to typical 1 A discrete MOSFET switches?
The MIC94041YFL supports up to 3 A continuous sourcing current through its integrated P-channel MOSFET driver. Most discrete single-MOSFET load-switch solutions in similar package sizes are rated at 1 A to 1.5 A, so the MIC94041YFL provides roughly double the current headroom, making it suitable for power-hungry peripherals such as SD cards, display modules, or USB bus-powered accessories that may draw 2 A to 3 A during active operation.
How small is the 4-pin MLF package of the MIC94041YFL, and what PCB layout considerations apply at this scale?
The 4-pin MLF package measures only 1.2 mm × 1.2 mm with a 0.65 mm pitch, making it one of the smallest power-switch packages available. At this scale, PCB pad dimensions typically require 0.3 mm pad width with 0.35 mm spacing, demanding fine-pitch design rules of at least 4 mil trace width. The exposed thermal pad on the package bottom conducts heat to the board plane, so a ground-connected copper pour under the package helps maintain junction temperature below the rated limit at 3 A load.
For a USB Type-C power path, when should a designer choose MIC94041YFL over a higher-integration power mux with overvoltage protection?
The MIC94041YFL is the preferred choice when the design already incorporates an external USB PD controller that handles overvoltage and overcurrent protection, and the remaining task is simply a low-loss 3 A high-side switch to enable or disable the 5 V power rail. Adding the full power-mux with built-in OVP adds roughly 50 mΩ to 100 mΩ of extra on-resistance and increases package size to at least 2 mm × 2 mm, whereas the MIC94041YFL keeps the switch path minimal in the 1.2 mm × 1.2 mm footprint at a lower unit cost.
What reflow soldering temperature does the MIC94041YFL withstand, and is it compatible with standard lead-free assembly processes?
The MIC94041YFL is rated for a peak reflow temperature of 260°C, which matches the standard lead-free soldering profile defined by IPC/JEDEC J-STD-020. This means it can be assembled using conventional lead-free solder paste such as SAC305 (96.5% tin, 3% silver, 0.5% copper) in a standard reflow oven without requiring special low-temperature paste or adjusted profiles, simplifying integration into modern RoHS-compliant manufacturing lines.
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