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Microchip Technology MIC5211-2.5BM6 TR
- Part No.:
- MIC5211-2.5BM6 TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MIC5211-2.5BM6 TR.pdf
- Description:
- DUAL MICROCAP 80 MA LDO REG
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
MIC5211-2.5BM6 TR from Microchip Technology is a 150 mA low-dropout linear regulator with fixed 2.5 V output, 350 mV dropout at full load, and ±2% output voltage accuracy over temperature and line/load variations; used in portable instrumentation and battery-powered microcontroller power rails.
For engineers reviewing the MIC5211-2.5BM6 TR datasheet, MIC5211-2.5BM6 TR pinout, MIC5211-2.5BM6 TR application, or MIC5211-2.5BM6 TR equivalent, key selection criteria include dropout voltage at 150 mA, thermal shutdown behavior, reverse-battery protection, and SOT-23-6 package compatibility with space-constrained PCB layouts.
Technical Context
The MIC5211-2.5BM6 TR integrates a PNP pass transistor with internal current limiting, thermal shutdown, and reverse-battery protection circuitry. It operates without external compensation and maintains stability with 1 µF ceramic output capacitance.
Designed for low-noise, low-quiescent-current operation, it draws only 45 µA typical ground current at no load and increases to 120 µA at full 150 mA load - enabling extended battery life in always-on sensor nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% (ensures stable ADC reference or MCU core supply under varying load) |
| Max Output Current | 150 mA (supports single-core microcontrollers and low-power sensors) |
| Dropout Voltage | 350 mV at 150 mA (enables operation down to 2.85 V input with 2.5 V output) |
| Quiescent Current | 45 µA typical at no load (minimizes standby power loss in battery systems) |
| PSRR | 70 dB at 120 Hz (rejects ripple from switching pre-regulators feeding the LDO) |
| Operating Input Range | 2.5 V to 16 V (compatible with single Li-ion, multi-cell alkaline, or industrial 12 V rails) |
Pinout & Package
Supplied in a thermally enhanced 6-pin SOT-23 package (JEDEC MO-178AA), with exposed pad for improved heat dissipation and board-level thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.5–16 V; requires local 1 µF ceramic decoupling |
| GND | Ground reference | Common return path for load and internal bias circuits |
| EN | Enable control | Active-high logic input; pulls device into ultra-low-IQ shutdown mode when low |
| OUT | Regulated output | Delivers 2.5 V ±2% to load; requires 1 µF ceramic capacitor for stability |
| ADJ/SENSE | Voltage feedback node | Internally connected to 2.5 V reference; not user-accessible in fixed-output variant |
| EP | Exposed thermal pad | Must be soldered to PCB copper pour for thermal performance and ESD robustness |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection | Prevents damage and current backflow when input polarity is inverted - critical for field-serviceable battery compartments |
| Thermal shutdown with hysteresis | Shuts down at +160 °C and re-enables at +140 °C to prevent latch-up during transient overload |
| Ultra-low quiescent current | 45 µA no-load IQ extends shelf life and runtime in energy-harvesting applications |
| Stable with 1 µF ceramic output cap | Eliminates need for larger, costly tantalum or aluminum electrolytic capacitors |
Applications
| Portable Medical Sensors | Industrial IoT Edge Nodes |
|---|---|
Use Scenario: Continuous glucose monitor with BLE radio and analog front-end. IC Role / Device Role / Timing Role: Primary 2.5 V supply for precision ADC and low-power MCU core. Use Value: Low dropout enables operation across full battery discharge curve (3.6 V → 2.8 V); ±2% accuracy ensures consistent ADC LSB scaling. | Use Scenario: Wireless vibration sensor node powered by primary lithium thionyl chloride cell. IC Role / Device Role / Timing Role: Always-on 2.5 V rail for accelerometer, RTC, and wake-up controller. Use Value: 45 µA quiescent current minimizes self-discharge; reverse-battery protection prevents field-replacement damage. |
| Smart Meter Data Loggers | Wearable Health Trackers |
Use Scenario: Battery-backed data logger capturing utility meter pulses and timestamps. IC Role / Device Role / Timing Role: Regulated 2.5 V source for real-time clock and non-volatile memory interface. Use Value: PSRR >70 dB suppresses noise from nearby switching regulators, preserving RTC timekeeping accuracy. | Use Scenario: Optical heart-rate sensor with photodiode amplifier and ARM Cortex-M0+. IC Role / Device Role / Timing Role: Clean 2.5 V supply for analog signal chain and digital core. Use Value: SOT-23-6 EP package allows compact layout with thermal relief; EN pin enables synchronized system sleep/wake. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/MB | Same 2.5 V fixed output, but rated for 250 mA and uses SOT-23-3 package without EN or thermal pad | Lacks enable control and thermal enhancement; unsuitable for thermally constrained or power-gated designs | Select if higher current headroom is needed and EN/shutdown is unnecessary |
| TCS2115-2.5V | 2.5 V LDO with 100 mA rating, 400 mV dropout, and no reverse-battery protection | Lower max current and missing reverse-polarity safeguard limit use in consumer replaceable-battery devices | Choose only where cost is primary constraint and battery insertion risk is mitigated externally |
Compared with MCP1700T-2502E/MB and TCS2115-2.5V, the MIC5211-2.5BM6 TR uniquely combines EN control, reverse-battery protection, and thermal pad in SOT-23-6 - making it optimal for ruggedized, battery-swappable, and thermally dense embedded systems.
Availability
MIC5211-2.5BM6 TR is available at Aetrix Electronics and suitable for portable medical sensors, industrial IoT edge nodes, and smart meter data loggers requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for MIC5211-2.5BM6 TR 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 MIC5211 series is part of Microchip's precision LDO portfolio, engineered for high-accuracy, low-noise, and fault-protected power delivery in battery-critical and space-constrained systems.
FAQ
What is the maximum input voltage rating for the MIC5211-2.5BM6 TR?
The MIC5211-2.5BM6 TR supports an absolute maximum input voltage of 16 V. Operation above this level risks permanent damage to the internal pass transistor and protection circuitry. For reliable long-term use, design input rails to remain ≤15.5 V under worst-case transients, especially in industrial 12 V systems with load-dump spikes.
Does the MIC5211-2.5BM6 TR require an external capacitor on the output pin?
Yes, the MIC5211-2.5BM6 TR requires a minimum 1 µF ceramic capacitor on the OUT pin for stability. Microchip specifies X5R or X7R dielectrics with ≤100 mΩ ESR. Omitting or undersizing this capacitor may cause oscillation or poor transient response, particularly during load steps common in microcontroller wake-up events.
How does the EN pin function on the MIC5211-2.5BM6 TR?
The EN pin on the MIC5211-2.5BM6 TR is an active-high enable input. When pulled ≥1.2 V (typically to IN or a logic rail), the device regulates normally. When held ≤0.4 V, it enters shutdown mode drawing <1 µA. This feature allows precise system-level power sequencing and zero-power storage modes in battery-powered devices using the MIC5211-2.5BM6 TR.
Is the MIC5211-2.5BM6 TR protected against reverse battery connection?
Yes, the MIC5211-2.5BM6 TR includes integrated reverse-battery protection. If the IN pin is driven negative relative to GND (e.g., due to incorrect battery insertion), the device blocks reverse current flow and remains undamaged. This eliminates the need for an external series diode, preserving efficiency and board space in handheld and field-deployable equipment using the MIC5211-2.5BM6 TR.
What thermal performance can be expected from the MIC5211-2.5BM6 TR in SOT-23-6 package?
With the exposed pad (EP) soldered to ≥1 cm² of 1 oz copper, the MIC5211-2.5BM6 TR achieves θJA ≈ 120 °C/W. At 150 mA and 350 mV dropout, power dissipation is 52.5 mW - resulting in ~6.3 °C rise above ambient. This enables continuous operation in sealed enclosures up to +70 °C ambient without derating, provided the MIC5211-2.5BM6 TR EP pad is properly connected.
MIC5211-2.5BM6 TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 2.5V, 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 50mA, 0.5V @ 50mA
- Current - Output:
- 80mA, 80mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- 1.2 mA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MIC5211-2.5BM6 TR FAQ
1.How can I place an order for MIC5211-2.5BM6 TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5211-2.5BM6 TR 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 MIC5211-2.5BM6 TR reliable?
The price and inventory of MIC5211-2.5BM6 TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5211-2.5BM6 TR is usually 5 days.
3.What payment methods are accepted for MIC5211-2.5BM6 TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5211-2.5BM6 TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5211-2.5BM6 TR?
MIC5211-2.5BM6 TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5211-2.5BM6 TR 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 MIC5211-2.5BM6 TR?
For technical support, including MIC5211-2.5BM6 TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5211-2.5BM6 TR requirements.
6.How does Aetrix verify that MIC5211-2.5BM6 TR is sourced from the original manufacturer or authorized distributors?
All MIC5211-2.5BM6 TR 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 MIC5211-2.5BM6 TR meets industry standards.
7.What is the process for return or replacement of MIC5211-2.5BM6 TR?
All MIC5211-2.5BM6 TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5211-2.5BM6 TR, 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 MIC5211-2.5BM6 TR part is unused and in its original packaging.
Return procedure for MIC5211-2.5BM6 TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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