MIC2090-1YM5TR Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
Microchip MIC2090-1YM5TR is a single-channel current-limiting power distribution switch in a 5-pin SOT-23 package supporting up to 5.5V input and 500 mA current limit. Provides overcurrent protection with active-low enable control. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- TRANSFERRED
- Datasheet
- MIC2090-1YM5TR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MIC2090-1YM5TR?
- Single-channel load switch with 500 mA current limit and 5.5V maximum input for USB and 5V bus protection
- Active-low enable input and overcurrent current-limiting for automatic fault protection without external sense resistors
- Compact 5-pin SOT-23 package simplifying PCB layout in space-constrained portable power distribution designs
What is MIC2090-1YM5TR used for?
The MIC2090-1YM5TR is used in USB power switches, portable device charging circuits, and industrial 5V bus protection systems requiring automatic current limiting to prevent damage from short-circuit or overload conditions. Its fixed current limit removes the need for external current-sense resistors, reducing BOM and PCB area in single-rail 5V designs. The active-low enable pin allows direct control from a microcontroller GPIO for sequenced power-up and power-down of downstream loads.
What are the specifications of MIC2090-1YM5TR?
| Reach Compliance Code | Compliant |
| Adjustable Threshold | NO |
| Analog IC - Other Type | LOAD SWITCH |
| JESD-30 Code | R-PDSO-G5 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.8V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the MIC2090-1YM5TR datasheet?
MIC2090-1YM5TR Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MIC2090-1YM5TR?
Compatible alternatives and drop-in replacements for MIC2090-1YM5TR:
Frequently Asked Questions
What is the current limiting threshold of MIC2090-1YM5TR and how does it protect downstream loads?
The MIC2090-1YM5TR limits output current to approximately 500 mA when a fault condition is detected, clamping the load current rather than shutting down, which prevents voltage collapse on the 5V bus and protects downstream ICs from damage. The current-limiting behavior activates within microseconds of detecting an overload, without requiring any external sense resistor or firmware intervention.
For a USB port power switch design, how does MIC2090-1YM5TR handle back-voltage from a connected device?
The MIC2090-1YM5TR supports up to 5.5V supply voltage and includes reverse-current blocking inherent to its load switch topology, preventing current flow from a connected USB peripheral back into the 5V host rail. This reverse protection is critical in USB host applications where bus-powered devices with local storage may momentarily source current during power transitions.
How does the SOT-23-5 package of MIC2090-1YM5TR compare to a discrete MOSFET plus current sense solution in terms of board area?
The MIC2090-1YM5TR integrates the pass MOSFET, current limiting circuitry, and enable logic in a 5-pin SOT-23 package measuring approximately 3 mm x 1.75 mm, replacing a discrete solution that would require a separate N-channel MOSFET, current-sense resistor, and comparator occupying at least 10 times the PCB footprint at equivalent 500 mA current rating.
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