MIC2009A-2YM6TR Microchip Integrated Circuit (Other) In Stock
Microchip MIC2009A-2YM6TR is a single-channel current-limiting power distribution switch with adjustable current threshold, 2A rated load switch functionality, and a compact 6-pin SOT-23 package for USB and portable power management.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 6
- Lifecycle
- TRANSFERRED
- Datasheet
- MIC2009A-2YM6TR 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
Key Features
- Adjustable current-limit threshold allows designers to set overcurrent trip points via an external resistor, protecting downstream loads in USB, portable, and IoT power distribution circuits
- Single-channel load switch integrates an N-channel FET with active-high enable, eliminating discrete MOSFET and gate-drive components in power-rail sequencing designs
- 6-pin SOT-23 package minimizes board area in space-constrained portable applications such as smartphones, tablets, and wearable devices
- Current-limiting protection mode folds back output current during fault conditions rather than hard-shutting, allowing controlled power delivery to protect both the switch and the load
Applications
The MIC2009A-2YM6TR is used in portable consumer electronics, USB-powered accessories, and industrial I/O modules where per-port current limiting and controlled power switching are required to protect downstream circuitry from overcurrent faults. Its adjustable threshold and small SOT-23 form factor make it a compact solution for battery management, USB port protection, and load-switch sequencing on multi-rail power trees in smartphones, tablets, and embedded computing modules.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LOAD SWITCH |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MIC2009A-2YM6TR:
Frequently Asked Questions
How is the current-limit threshold of the MIC2009A-2YM6TR set, and what range of trip currents is achievable?
The current-limit threshold is programmed by a single external resistor connected to the ILIM pin. By selecting the appropriate resistor value, designers can set the trip current from approximately 100mA to over 2A, allowing the same IC to serve both low-power sensor loads and high-current USB peripheral rails in the same product family.
What happens to the output when the MIC2009A-2YM6TR detects an overcurrent condition?
When the load current exceeds the programmed threshold, the device enters a current-limiting mode that clamps the output current at the set trip point rather than immediately shutting down. This fold-back behavior limits dissipation in the pass FET and protects both the switch and the downstream load, with the device resuming normal operation automatically once the fault is cleared.
How does the MIC2009A-2YM6TR simplify USB port power management compared to a discrete MOSFET solution?
The device integrates the load-switch FET, current-sense comparator, and gate driver in a single 6-pin SOT-23 package, replacing at least 4 to 5 discrete components (MOSFET, current-sense resistor, comparator, gate resistor, and pull-down). This reduces PCB area by several square millimeters and eliminates the layout complexity of high-side P-FET gate drive in 5V USB power circuits.
For a USB Type-A port protection circuit, why is the adjustable-threshold feature of the MIC2009A-2YM6TR particularly valuable?
USB specifications define different current limits—500mA for USB 2.0, 900mA for USB 3.0, and up to 1.5A for USB BC 1.2 charging ports. The adjustable threshold allows the same MIC2009A-2YM6TR to be configured for any of these limits by changing one resistor, avoiding the need to stock multiple fixed-threshold load-switch variants across a product line.
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