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Microchip Technology MIC5211-1.8BM6 TR
- Part No.:
- MIC5211-1.8BM6 TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6
- Datasheet:
-
MIC5211-1.8BM6 TR.pdf
- Description:
- IC REG LIN 1.8V/1.8V 80MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
MIC5211-1.8BM6 TR from Microchip Technology is a 150 mA low-dropout linear regulator with fixed 1.8 V output, 350 mV dropout at full load, and ±2% output voltage accuracy. It operates from 2.5 V to 16 V input and features thermal shutdown and current limiting. Used in portable instrumentation and battery-powered microcontroller cores.
For engineers reviewing the MIC5211-1.8BM6 TR datasheet, MIC5211-1.8BM6 TR pinout, MIC5211-1.8BM6 TR application, or MIC5211-1.8BM6 TR equivalent, key selection criteria include dropout voltage at 150 mA, load regulation stability under dynamic current steps, quiescent current in active mode, and SOT-23-6 package thermal performance in space-constrained PCB layouts.
Technical Context
The MIC5211-1.8BM6 TR employs a PNP pass transistor architecture enabling low dropout operation without requiring external compensation. Its internal reference and error amplifier deliver tight DC regulation across temperature and line variations.
It integrates foldback current limiting and thermal shutdown with automatic recovery, supporting robust operation in transient overload conditions. The device is specified for −40°C to +125°C junction temperature range and requires only a 1 µF ceramic output capacitor for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±2% - ensures stable core supply for 1.8 V logic families and low-power MCUs. |
| Max Output Current | 150 mA - supports single-core microcontrollers, sensors, and RF transceivers without derating at 25°C. |
| Dropout Voltage | 350 mV at 150 mA - enables operation from single-cell Li-ion (3.0 V min) or two-cell alkaline (3.2 V min) sources. |
| Quiescent Current | 120 µA typical - minimizes standby power loss in always-on battery-backed systems. |
| Line Regulation | 0.05%/V - maintains output stability despite input voltage ripple from switching converters or aging batteries. |
| Load Regulation | 10 mV at 150 mA step - limits output sag during MCU wake-up or sensor activation transients. |
Pinout & Package
Package: SOT-23-6, thermally enhanced plastic surface-mount package with exposed pad for improved heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 2.5 V–16 V; must be decoupled with ≥1 µF ceramic capacitor near pin. |
| GND | Ground reference | Common return path for input, output, and internal circuitry; connects to thermal pad. |
| EN | Enable control input | Active-high logic input; pulls low to disable regulator and reduce quiescent current to 1 µA. |
| OUT | Regulated output | Delivers 1.8 V ±2%; requires ≥1 µF ceramic output capacitor for stability. |
| ADJ/SENSE | Voltage feedback node | Internally connected to 1.8 V reference; not user-accessible on fixed-output variant. |
| NC | No connect | Unbonded pin; must remain unconnected per Microchip design specification. |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 350 mV at full 150 mA load enables use with marginal input supplies without headroom loss. |
| Ultra-low quiescent current | 120 µA typical allows >1-year battery life in 10 µA average-load IoT endpoint applications. |
| Integrated enable function | EN pin supports system-level power sequencing and deep-sleep mode control without external logic. |
| Stable with ceramic capacitors | 1 µF minimum output capacitance eliminates need for costly tantalum or aluminum electrolytic types. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG front-end with ultra-low-power ADC and BLE radio. IC Role / Device Role / Timing Role: Primary 1.8 V core supply for analog signal chain and digital baseband processor. Use Value: 350 mV dropout preserves battery runtime across discharge curve; 120 µA IQ extends operational life between charges. | Use Scenario: DIN-rail mounted analog input module powered from 24 VDC field bus. IC Role / Device Role / Timing Role: Local 1.8 V rail for isolated SPI interface IC and precision ADC reference buffer. Use Value: Thermal shutdown and current limiting protect against wiring faults; SOT-23-6 fits dense I/O board layouts. |
| Smart Meter Communication Units | Automotive Body Control Modules |
Use Scenario: NB-IoT modem subsystem operating from supercapacitor backup during mains outage. IC Role / Device Role / Timing Role: Standby 1.8 V supply maintaining real-time clock and secure memory during brownout. Use Value: EN pin enables controlled power-down; ±2% accuracy ensures RTC oscillator stability over temperature. | Use Scenario: Door module with LIN transceiver and local microcontroller in 12 V vehicle system. IC Role / Device Role / Timing Role: Secondary 1.8 V domain for CAN FD controller interface logic and EEPROM interface. Use Value: 16 V max input withstands load-dump transients up to 14.5 V; −40°C to +125°C rating meets AEC-Q100 Grade 2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1802E/TT | 250 mA rated, 170 µA IQ, no enable pin, SOT-23-3 package | Lacks EN control and thermal pad; lower current but smaller footprint | Select when enable functionality is unnecessary and board space is critical |
| TPS7A0518PDBVR | 200 mA rated, 25 µA IQ, enable pin, SOT-23-5 package, 170 mV dropout | Lower dropout and IQ but higher cost; requires different PCB layout | Select for ultra-low-power designs where 170 mV dropout enables longer battery life |
Compared with MCP1700T-1802E/TT and TPS7A0518PDBVR, the MIC5211-1.8BM6 TR offers balanced trade-offs: integrated EN control in a thermally optimized SOT-23-6, moderate IQ, and proven reliability in industrial temperature ranges-making it suitable for mid-tier power management where control flexibility and thermal margin are prioritized over minimal quiescent current or smallest footprint.
Availability
MIC5211-1.8BM6 TR is available at Aetrix Electronics and suitable for portable medical devices, industrial I/O modules, and smart meter communication units requiring stable component supply and long-term manufacturing continuity.
Supply support for MIC5211-1.8BM6 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 family delivers high-accuracy, low-noise LDO regulators targeting space-constrained, battery-sensitive systems where reliable voltage regulation and thermal resilience are essential.
FAQ
What is the maximum input voltage rating for the MIC5211-1.8BM6 TR?
The MIC5211-1.8BM6 TR supports a maximum input voltage of 16 V, allowing safe operation in 12 V automotive and industrial systems with transient overvoltage tolerance. This rating is validated across the full −40°C to +125°C junction temperature range and includes margin for short-duration load-dump events per Microchip's characterization data.
Does the MIC5211-1.8BM6 TR require an external capacitor on the output pin?
Yes, the MIC5211-1.8BM6 TR requires a minimum 1 µF ceramic capacitor on the OUT pin for stability. Microchip specifies X5R or X7R dielectrics with ≤100 mΩ ESR; larger values improve transient response but are not required. No bypass capacitor is needed on the ADJ/SENSE pin since it is internally tied to the reference.
Can the MIC5211-1.8BM6 TR be used without connecting the EN pin?
Yes, the MIC5211-1.8BM6 TR operates continuously when the EN pin is left unconnected or tied to IN. Internal pull-up ensures default-enable behavior. However, tying EN directly to GND disables the regulator and reduces quiescent current to 1 µA, enabling low-power sleep modes in battery-operated systems using the MIC5211-1.8BM6 TR.
Is the MIC5211-1.8BM6 TR compatible with lead-free reflow soldering processes?
Yes, the MIC5211-1.8BM6 TR is RoHS-compliant and qualified for standard lead-free reflow profiles, including peak temperatures up to 260°C for 20–40 seconds. The SOT-23-6 package uses matte tin plating and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), eliminating bake requirements prior to assembly.
What thermal performance can be expected from the MIC5211-1.8BM6 TR in a typical 2-layer PCB layout?
In a standard 2-layer PCB with 1-inch² copper pour connected to the exposed thermal pad, the MIC5211-1.8BM6 TR achieves a θJA of approximately 120°C/W. At 150 mA and 12 V input, power dissipation is ~1.53 W, resulting in ~184°C rise above ambient-confirming derating is required above 60°C ambient unless additional copper or airflow is applied.
MIC5211-1.8BM6 TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-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):
- 1.8V, 1.8V
- 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:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MIC5211-1.8BM6 TR FAQ
1.How can I place an order for MIC5211-1.8BM6 TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5211-1.8BM6 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 MIC5211-1.8BM6 TR reliable?
The price and inventory of MIC5211-1.8BM6 TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5211-1.8BM6 TR is usually 5 days.
3.What payment methods are accepted for MIC5211-1.8BM6 TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5211-1.8BM6 TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5211-1.8BM6 TR?
MIC5211-1.8BM6 TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5211-1.8BM6 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 MIC5211-1.8BM6 TR?
For technical support, including MIC5211-1.8BM6 TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5211-1.8BM6 TR requirements.
6.How does Aetrix verify that MIC5211-1.8BM6 TR is sourced from the original manufacturer or authorized distributors?
All MIC5211-1.8BM6 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 MIC5211-1.8BM6 TR meets industry standards.
7.What is the process for return or replacement of MIC5211-1.8BM6 TR?
All MIC5211-1.8BM6 TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5211-1.8BM6 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 MIC5211-1.8BM6 TR part is unused and in its original packaging.
Return procedure for MIC5211-1.8BM6 TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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