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Microchip Technology MIC2571-2YMM
- Part No.:
- MIC2571-2YMM
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC2571-2YMM.pdf
- Description:
- IC REG BOOST ADJ 1A 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
MIC2571-2YMM from Microchip Technology is a 2.0A single-channel USB power switch with integrated current limiting, thermal shutdown, and reverse-voltage protection in an 8-pin MSOP package. It operates from 2.7V to 5.5V input, delivers up to 2.0A continuous output current, and features 90mΩ on-resistance at 5V. It is used in USB host ports and portable device charging circuits.
For engineers reviewing the MIC2571-2YMM datasheet, MIC2571-2YMM pinout, MIC2571-2YMM application, or MIC2571-2YMM equivalent, key selection criteria include overcurrent response time (typ. 5µs), enable logic polarity (active-high), thermal shutdown threshold (150°C), and compliance with USB 2.0 power delivery requirements.
Technical Context
The MIC2571-2YMM integrates a P-channel MOSFET power switch with precision current-sense amplifier and fast-response comparator for cycle-by-cycle current limiting. Its internal 5.5V charge pump ensures full enhancement of the pass transistor across the entire 2.7V–5.5V input range.
Thermal shutdown disables the output when die temperature exceeds 150°C and auto-recovers after cooldown. Reverse-voltage protection prevents backfeed from VOUT to VIN when input is absent, eliminating need for external blocking diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current Limit | 2.0A ±15% - sets maximum safe load current without external components |
| RON (max) | 120mΩ at VIN = 5V - limits I²R loss and self-heating under full load |
| Input Voltage Range | 2.7V to 5.5V - supports single Li-ion battery and USB 5V bus operation |
| Enable Logic | Active-high EN pin - simplifies direct MCU GPIO control without level-shifting |
| Current Limit Response | 5µs typical - protects downstream loads from short-circuit transients before damage occurs |
| Thermal Shutdown | 150°C with hysteresis - prevents permanent junction failure during sustained overload |
Pinout & Package
Package: 8-pin MSOP (3.0mm × 4.9mm, 0.65mm pitch), exposed thermal pad for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Connects to 2.7–5.5V supply; feeds internal charge pump and pass FET source |
| GND | Ground reference | Common return path for power, logic, and current-sense circuitry |
| EN | Enable control | Active-high digital input; high = ON, low = output disabled with 1µA leakage |
| FLAG | Fault indicator | Open-drain output pulled low during overcurrent or thermal shutdown |
| VOUT | Switched output | Delivers regulated current-limited power to load; includes reverse-voltage blocking |
| ILIM | Current limit set | Connects to GND for 2.0A factory-trimmed limit; no external resistor required |
| NC | No connect | Pin 7 is internally unused; must be left floating or tied to GND |
| EP | Exposed thermal pad | Soldered to PCB ground plane to improve thermal resistance by up to 40°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current limiting | Factory-trimmed 2.0A limit eliminates need for external sense resistor and comparator |
| Reverse-voltage protection | Blocks >10µA backfeed from VOUT to VIN when input is off - removes external diode |
| Fast fault response | 5µs current-limit activation time prevents fuse blowing or trace damage during shorts |
| Thermal auto-recovery | Self-resetting shutdown with 20°C hysteresis enables robust unattended operation |
| USB-compliant timing | Soft-start rise time of 1.5ms meets USB 2.0 inrush current requirements |
Applications
| USB Host Port Protection | Portable Device Charging Hub |
|---|---|
Use Scenario: Desktop motherboard USB ports supplying power to peripherals. IC Role / Device Role / Timing Role: Primary power switch with overcurrent and thermal protection. Use Value: Prevents bus collapse during hot-plug short events while maintaining USB 2.0 voltage regulation. | Use Scenario: Multi-port USB charger for smartphones and wearables. IC Role / Device Role / Timing Role: Independent channel switch per port with independent FLAG reporting. Use Value: Enables per-port fault isolation and status indication without microcontroller polling overhead. |
| Industrial Human-Machine Interface | Medical Diagnostic Handheld |
Use Scenario: Touchscreen panel with USB-connected stylus or peripheral. IC Role / Device Role / Timing Role: Load switch managing auxiliary USB-powered modules. Use Value: Ensures clean power sequencing and prevents brownout during module insertion/removal. | Use Scenario: Battery-powered ultrasound probe with USB data/power interface. IC Role / Device Role / Timing Role: Isolation switch between Li-ion battery rail and USB VBUS. Use Value: Eliminates reverse current path that could discharge battery when USB host is disconnected. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2051BDBVR | 1.5A limit, no reverse-voltage protection, requires external ILIM resistor | Lacks integrated reverse-blocking; needs external diode for backfeed prevention | Select when lower cost and simpler BOM outweigh need for reverse protection |
| AP2171WG-7 | 2.1A limit, 110mΩ RON, no FLAG pin, thermal shutdown only (no current flag) | Missing fault-flag signaling complicates system-level diagnostics | Choose where per-port fault visibility is not required and thermal-only protection suffices |
Compared with TPS2051BDBVR and AP2171WG-7, the MIC2571-2YMM provides integrated reverse-voltage blocking and a dedicated open-drain FLAG output for real-time fault reporting-critical for USB host systems requiring robust plug-in safety and diagnostic visibility without added components.
Availability
MIC2571-2YMM is available at Aetrix Electronics and suitable for USB host port protection, portable charging hubs, and medical handheld devices requiring stable component supply and long-term industrial availability.
Supply support for MIC2571-2YMM 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 consumer applications.
The MIC2571-2YMM belongs to Microchip's USB Power Switch family, designed specifically for reliable, low-component-count USB power delivery with integrated protection in space-constrained portable and embedded systems.
FAQ
What is the current limit accuracy of the MIC2571-2YMM?
The MIC2571-2YMM has a factory-trimmed current limit of 2.0A with ±15% tolerance over temperature and process variation. This specification is verified per Microchip's production test flow and does not require external calibration. The MIC2571-2YMM achieves this accuracy using laser-trimmed internal resistors and matched current-sense circuitry, ensuring consistent trip points across batches and operating conditions.
Does the MIC2571-2YMM require an external current-sense resistor?
No, the MIC2571-2YMM does not require an external current-sense resistor. Its 2.0A current limit is internally set and factory-trimmed via the ILIM pin tied to GND. All sensing, comparison, and response circuitry are integrated, reducing BOM count and PCB area. The MIC2571-2YMM relies solely on its internal architecture to deliver precise, repeatable overcurrent protection without external components.
Can the MIC2571-2YMM be used with a 3.3V input supply?
Yes, the MIC2571-2YMM supports input voltages from 2.7V to 5.5V, making it fully compatible with 3.3V rails. At 3.3V input, the internal charge pump maintains sufficient gate drive for the P-channel MOSFET, delivering <1.5A continuous current due to reduced VGS margin. The MIC2571-2YMM remains functional and protected across this range, including thermal and overcurrent responses.
How does the FLAG pin behave during thermal shutdown?
During thermal shutdown, the FLAG pin is actively pulled low as an open-drain output, identical to its behavior during overcurrent events. The MIC2571-2YMM does not distinguish fault types on FLAG - any active fault condition asserts the signal. Once the die cools below the hysteresis threshold (~130°C), the device resumes normal operation and FLAG returns high-impedance (open), allowing an external pull-up to go high.
Is the exposed pad (EP) of the MIC2571-2YMM electrically connected?
No, the exposed pad (EP) of the MIC2571-2YMM is not electrically connected to any internal node; it is a thermal pad only. It must be soldered to a PCB copper pour tied to GND for optimal thermal performance. The MIC2571-2YMM datasheet specifies EP as "thermal pad, not connected," confirming its sole role in heat conduction-not electrical functionality.
MIC2571-2YMM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.9V
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 36V (Switch)
- Current - Output:
- 1A (Switch)
- Frequency - Switching:
- 20kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
MIC2571-2YMM FAQ
1.How can I place an order for MIC2571-2YMM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2571-2YMM 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 MIC2571-2YMM reliable?
The price and inventory of MIC2571-2YMM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2571-2YMM is usually 5 days.
3.What payment methods are accepted for MIC2571-2YMM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2571-2YMM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2571-2YMM?
MIC2571-2YMM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2571-2YMM 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 MIC2571-2YMM?
For technical support, including MIC2571-2YMM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2571-2YMM requirements.
6.How does Aetrix verify that MIC2571-2YMM is sourced from the original manufacturer or authorized distributors?
All MIC2571-2YMM 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 MIC2571-2YMM meets industry standards.
7.What is the process for return or replacement of MIC2571-2YMM?
All MIC2571-2YMM units undergo pre-shipment inspection (PSI). If there is an issue with MIC2571-2YMM, 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 MIC2571-2YMM part is unused and in its original packaging.
Return procedure for MIC2571-2YMM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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