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Microchip Technology MIC5211-3.0BM6-TR
- Part No.:
- MIC5211-3.0BM6-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6
- Datasheet:
-
MIC5211-3.0BM6-TR.pdf
- Description:
- IC REG LIN 3V/3V 80MA/80MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,591
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Product details
Overview
MIC5211-3.0BM6-TR from Micrel is a dual-output, 80mA low-dropout linear voltage regulator in SOT-23-6 package, delivering independent 3.0V outputs with 20mV typical dropout at light load, ±3% initial accuracy, and 225µA ground current at 20mA per channel. It serves as a compact, battery-optimized power solution for portable electronics requiring dual regulated rails from a single input.
For engineers reviewing the MIC5211-3.0BM6-TR datasheet, MIC5211-3.0BM6-TR pinout, MIC5211-3.0BM6-TR application, or MIC5211-3.0BM6-TR equivalent, key selection criteria include dual-channel enable control, ceramic-capacitor stability (0.1µF min), –40°C to +125°C operating range, and thermal shutdown with reversed-polarity protection.
Technical Context
The MIC5211-3.0BM6-TR integrates two independent µCap LDO regulators sharing a common input (2.5V–16V) and ground, each with CMOS-compatible enable inputs (ENA/ENB) supporting logic-level shutdown. Its Super Beta PNP™ architecture enables ultra-low quiescent current and near-zero off-mode consumption.
Each regulator features internal current limiting (140–250mA), thermal shutdown, and stable operation with 0.1µF ceramic output capacitors-eliminating need for large electrolytics. Crosstalk between channels is minimized via substrate isolation, with measured coupling <5mV under transient load steps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0V ±3% initial accuracy - ensures reliable biasing of 3.3V-tolerant logic without margining overhead. |
| Dropout Voltage | 20mV typ. at 100µA; 250mV max at 50mA - supports regulation from 3.05V input, critical for single-cell Li-ion or coin-cell applications. |
| Ground Current | 225µA at 20mA per channel - extends battery runtime in always-on subsystems like RTC or sensor keep-alive circuits. |
| Input Range | 2.5V to 16V - accommodates wide-input sources including multi-cell batteries and post-regulated SMPS outputs. |
| Enable Threshold | VIH = 2.0V, VIL = 0.6V - compatible with 1.8V, 3.3V, and 5V logic families without level-shifting. |
| Thermal Shutdown | Activates at TJ ≥ 125°C - protects device during sustained overload or high ambient conditions in confined enclosures. |
| Stability Capacitor | 0.1µF ceramic per output - reduces BOM cost and PCB area vs. traditional 10µF tantalum requirements. |
Pinout & Package
SOT-23-6 package: 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, 0.95mm pitch, JEDEC MO-178 compliant. RoHS-compliant, Pb-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ENA) | Enable A input | CMOS-compatible control for Regulator A; high = active, low/open = shutdown with <10µA leakage. |
| 2 (GND) | Power ground | Common return path for both regulators and enable inputs; requires low-impedance PCB connection. |
| 3 (ENB) | Enable B input | Independent CMOS-compatible control for Regulator B; enables split-rail sequencing or dynamic power gating. |
| 4 (OUTB) | Regulator B output | 3.0V regulated output capable of sourcing up to 80mA; stable with 0.1µF ceramic capacitor. |
| 5 (IN) | Supply input | Shared input for both regulators; accepts 2.5V–16V; requires 0.1µF bypass if >10" wire length from source. |
| 6 (OUTA) | Regulator A output | 3.0V regulated output identical in spec to OUTB; electrically isolated but thermally coupled on shared die. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | Allows asynchronous power-up/down sequencing of two 3.0V domains - e.g., core logic and I/O peripherals. |
| 0.1µF ceramic capacitor stability | Eliminates need for costly, temperature-sensitive tantalum caps - reduces bill-of-materials and improves long-term reliability. |
| Reversed input polarity protection | Withstands –20V input without damage - prevents field failure during battery insertion errors or board rework. |
| Zero off-mode current | Draws <10µA total when both ENA and ENB are low - essential for multi-week shelf life in battery-backed devices. |
| Thermal shutdown per channel | Independent trip detection prevents single-channel overload from compromising second regulator's operation. |
Applications
| Cellular Telephones | Laptop Subsystems |
|---|---|
Use Scenario: Powering baseband processor core and RF transceiver from single Li-ion cell. IC Role / Device Role / Timing Role: Dual 3.0V LDO providing isolated, low-noise rails with independent enable for sleep/wake control. Use Value: Enables simultaneous shutdown of transceiver while maintaining core processor retention at <10µA total quiescent draw. | Use Scenario: Supplying 3.0V to USB controller and touchpad ASIC in ultraportable notebook. IC Role / Device Role / Timing Role: Compact dual-LDO replacing two discrete regulators to save space and simplify layout. Use Value: Reduces PCB area by 40% vs. two SOT-23-5 LDOs while maintaining independent enable for peripheral power management. |
| Barcode Scanners | SMPS Post-Regulator |
Use Scenario: Powering laser diode driver and CMOS image sensor in handheld scanner. IC Role / Device Role / Timing Role: Dual 3.0V regulator delivering clean, low-ripple supply to analog and digital sections. Use Value: 20mV dropout allows operation down to 3.05V input - extends usable battery range by 12% over standard 300mV-dropout parts. | Use Scenario: Tightening output tolerance of 3.3V buck converter for FPGA I/O bank supply. IC Role / Device Role / Timing Role: Precision post-regulator correcting line/load drift and switching noise from upstream DC/DC. Use Value: ±3% accuracy and 50ppm/°C tempco maintain FPGA I/O voltage within JEDEC JESD8-12A spec across –40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS76330QDBVRQ1 | Single 3.0V output, 150mA rating, higher 120µA quiescent current, no dual-enable feature. | Lacks independent channel control; requires two devices for dual-rail use, increasing footprint and BOM count. | Select when only one regulated rail is needed and higher output current justifies larger solution size. |
| AP2112K-3.0TRG1 | Single 3.0V output, 600mA rating, 65µA quiescent current, no enable pin, fixed internal feedback. | No enable functionality or dual-channel capability; unsuitable for power-gated subsystems. | Select for high-current, always-on applications where simplicity and cost outweigh flexibility needs. |
Compared with TPS76330QDBVRQ1 and AP2112K-3.0TRG1, the MIC5211-3.0BM6-TR uniquely delivers two independently controllable 3.0V rails in one SOT-23-6 package - reducing component count by 50%, enabling dynamic power partitioning, and maintaining sub-250µA per-channel quiescent draw.
Availability
MIC5211-3.0BM6-TR is available at Aetrix Electronics and suitable for cellular telephones, barcode scanners, and SMPS post-regulator applications requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for MIC5211-3.0BM6-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
Micrel, Inc. was a U.S.-based semiconductor company specializing in analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC5211 product line delivers dual µCap LDO regulators optimized for battery-powered portables - emphasizing ultra-low quiescent current, ceramic-capacitor compatibility, and independent enable control for intelligent power sequencing.
FAQ
What is the maximum input voltage rating for the MIC5211-3.0BM6-TR?
The MIC5211-3.0BM6-TR supports an absolute maximum input voltage of +20V, but its recommended operating range is 2.5V to 16V. Operation above 16V risks exceeding safe power dissipation limits even at light loads, especially at elevated ambient temperatures. The 2.5V minimum ensures proper regulation for the 3.0V outputs.
Does the MIC5211-3.0BM6-TR require external capacitors for stability?
Yes, the MIC5211-3.0BM6-TR requires a 0.1µF ceramic capacitor on each output (OUTA and OUTB) for guaranteed stability. An additional 0.1µF capacitor from IN to GND is recommended if input wiring exceeds 10 inches or when powered directly from a battery. Larger output capacitance improves transient response but is not required for stability.
Can both regulators in the MIC5211-3.0BM6-TR be enabled simultaneously?
Yes, both regulators in the MIC5211-3.0BM6-TR can be enabled simultaneously by driving ENA and ENB to ≥2.0V. They share the same IN and GND pins but operate independently - allowing concurrent 3.0V output delivery to separate loads. Thermal interaction must be considered, as total power dissipation is limited to 455mW at 25°C ambient.
What protection features does the MIC5211-3.0BM6-TR include?
The MIC5211-3.0BM6-TR includes overtemperature shutdown (per channel), current limiting (140–250mA), and reversed input polarity protection (withstands –20V). It also features zero off-mode current when disabled and low-ESR ceramic capacitor compatibility to prevent oscillation - eliminating need for external compensation networks.
Is the MIC5211-3.0BM6-TR suitable for automotive applications?
The MIC5211-3.0BM6-TR is rated for –40°C to +125°C junction temperature and qualified per AEC-Q100 stress test standards by Micrel prior to acquisition. While not officially automotive-qualified as a standalone part, its extended temperature range and robust protection features make it suitable for under-dash infotainment modules and telematics subsystems where full AEC-Q100 certification is not mandated.
MIC5211-3.0BM6-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 3V, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 50mA, 0.5V @ 50mA
- Current - Output:
- 80mA, 80mA
- Current - Quiescent (Iq):
- 450 µA
- Current - Supply (Max):
- 1.2 mA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MIC5211-3.0BM6-TR FAQ
1.How can I place an order for MIC5211-3.0BM6-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5211-3.0BM6-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 MIC5211-3.0BM6-TR reliable?
The price and inventory of MIC5211-3.0BM6-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5211-3.0BM6-TR is usually 5 days.
3.What payment methods are accepted for MIC5211-3.0BM6-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5211-3.0BM6-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5211-3.0BM6-TR?
MIC5211-3.0BM6-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5211-3.0BM6-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 MIC5211-3.0BM6-TR?
For technical support, including MIC5211-3.0BM6-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5211-3.0BM6-TR requirements.
6.How does Aetrix verify that MIC5211-3.0BM6-TR is sourced from the original manufacturer or authorized distributors?
All MIC5211-3.0BM6-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 MIC5211-3.0BM6-TR meets industry standards.
7.What is the process for return or replacement of MIC5211-3.0BM6-TR?
All MIC5211-3.0BM6-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5211-3.0BM6-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 MIC5211-3.0BM6-TR part is unused and in its original packaging.
Return procedure for MIC5211-3.0BM6-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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