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Microchip Technology MIC5211-5.0BM6-TR
- Part No.:
- MIC5211-5.0BM6-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6
- Datasheet:
-
MIC5211-5.0BM6-TR.pdf
- Description:
- IC REG LIN 5V/5V 80MA/80MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,684
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Product details
Overview
MIC5211-5.0BM6-TR from Micrel is a dual-output, 80mA low-dropout linear voltage regulator in SOT-23-6 packaging, delivering fixed 5.0V on both outputs with 3% initial accuracy, 20mV typical dropout at light load, and 225µA ground current at 20mA output. It serves as an independent dual rail power source for portable battery-powered systems requiring tight regulation and ultra-low quiescent current.
For engineers reviewing the MIC5211-5.0BM6-TR datasheet, MIC5211-5.0BM6-TR pinout, MIC5211-5.0BM6-TR application, or MIC5211-5.0BM6-TR equivalent, key selection criteria include dual-channel enable control, ceramic-capacitor stability (0.1µF per output), –40°C to +125°C operation, reversed-input polarity protection, and thermal shutdown per regulator half.
Technical Context
The MIC5211-5.0BM6-TR integrates two independent µCap LDO regulators sharing a common input (VIN) and ground (GND), each with dedicated CMOS-compatible enable inputs (ENA, ENB) and separate outputs (OUTA, OUTB). Its Super Beta PNP™ architecture enables ultra-low dropout and sub-1µA shutdown current.
Each regulator operates over 2.5V–16V input range, delivers up to 80mA, and maintains stability with only 0.1µF ceramic output capacitance. Thermal shutdown and current limiting are implemented independently per channel, though shared die thermal coupling requires total power dissipation ≤455mW at 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V per channel, ±3% initial accuracy ensures reliable logic-level compliance for 5V microcontrollers and peripherals. |
| Dropout Voltage | 20mV typical at 100µA load; 450mV max at 50mA - enables regulation from 5.02V input, critical for single-cell Li-ion post-regulation. |
| Ground Current | 225µA at 20mA output per regulator - minimizes battery drain in always-on subsystems like real-time clocks. |
| Enable Threshold | VIH = 2.0V min, VIL = 0.6V max - compatible with 1.8V/3.3V/5V logic without level shifters. |
| Input Range | 2.5V to 16V - supports wide input sources including multi-cell batteries and SMPS pre-regulated rails. |
| Thermal Shutdown | Activates at TJ ≥125°C per channel - protects against sustained overload while allowing independent channel operation below limit. |
| ESD Rating | Class 2 HBM (≥2kV) - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
SOT-23-6 package: 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, 0.95mm pitch. RoHS-compliant, Pb-free (LFXX marking).
| 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; must be low-impedance for stability. |
| 3 - ENB | Enable B input | Independent CMOS-compatible control for Regulator B; allows staggered power-up or selective rail disable. |
| 4 - OUTB | Regulator B output | 5.0V regulated output capable of sourcing up to 80mA; requires 0.1µF ceramic capacitor to GND for stability. |
| 5 - IN | Supply input | Shared input for both regulators; accepts 2.5V–16V; needs 0.1µF bypass if >10" wire length from source. |
| 6 - OUTA | Regulator A output | 5.0V regulated output identical in spec to OUTB; electrically isolated but thermally coupled on same die. |
Key Features
| Feature | Design Value |
|---|---|
| µCap ceramic stability | Stable with 0.1µF X7R ceramic capacitors per output - eliminates need for costly tantalum or large electrolytics. |
| Dual independent enables | Separate ENA/ENB pins allow asymmetric power sequencing - e.g., keep one rail active during sleep mode while disabling the other. |
| Reversed-input polarity protection | Withstands –20V on IN pin without damage - prevents catastrophic failure if battery is inserted backward in handheld devices. |
| Zero off-mode current | ≤10µA total supply current when both ENA and ENB are low - extends shelf life in battery-backed storage applications. |
| Tight thermal regulation | 0.05%/W output drift under dynamic load changes - maintains voltage accuracy during transient current spikes. |
Applications
| Cellular Telephones | Laptop Subsystems |
|---|---|
Use Scenario: Powering baseband processor I/O banks and RF transceiver bias rails in dual-voltage GSM/UMTS handsets. IC Role / Device Role / Timing Role: Dual 5.0V LDO providing isolated, low-noise analog and digital supply domains from a shared Li-ion battery. Use Value: Enables simultaneous 5V rail generation with <20mV dropout and independent enable control - reduces component count versus two discrete regulators. | Use Scenario: Supplying USB controller, card reader, and touchpad interfaces in notebook standby/suspend states. IC Role / Device Role / Timing Role: Always-on 5.0V regulator pair maintaining peripheral readiness while main CPU is powered down. Use Value: 225µA ground current per channel and zero-off current extend battery runtime in S3/S4 sleep modes beyond competing dual-LDOs. |
| Barcode Scanners | SMPS Post-Regulators |
Use Scenario: Delivering clean 5.0V to laser diode drivers and CCD image sensors in handheld industrial scanners. IC Role / Device Role / Timing Role: Low-noise, fast-transient dual LDO replacing switching supplies where EMI sensitivity prohibits DC-DC use. Use Value: 0.1µF ceramic stability and <500mV dropout ensure stable operation during rapid laser pulsing without output sag or oscillation. | Use Scenario: Tightening output tolerance of 5V buck converter outputs in telecom line cards and PoE-powered devices. IC Role / Device Role / Timing Role: Precision post-regulator correcting line/load regulation errors and filtering high-frequency switching noise. Use Value: ±3% initial accuracy and 0.3% load regulation reduce system-level voltage margining - simplifies downstream logic design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1826S-5002E/DB | Single 5V output, 300mA rating, 350mV dropout at full load; no dual-output or independent enables. | Requires two devices for dual-rail use; lacks per-rail shutdown control. | Select when higher current per rail (>80mA) is needed and dual enable is not required. |
| TPS767D318PWPR | 3.3V/1.8V dual fixed output; 1A per channel; 350mV dropout; thermal foldback instead of hard shutdown. | Fixed mixed-voltage configuration only; incompatible for dual-5V requirement. | Select only for systems needing asymmetric rails; not a functional substitute for MIC5211-5.0BM6-TR's dual-5V capability. |
Compared with MCP1826S-5002E/DB and TPS767D318PWPR, the MIC5211-5.0BM6-TR uniquely provides matched dual 5.0V outputs with independent enables, ultra-low dropout (20mV), and ceramic-capacitor stability in SOT-23-6 - making it optimal for space-constrained dual-rail 5V systems where per-channel control and minimal BOM count are critical.
Availability
MIC5211-5.0BM6-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 traceability.
Supply support for MIC5211-5.0BM6-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 flexible power sequencing.
FAQ
What is the maximum input voltage rating for the MIC5211-5.0BM6-TR?
The MIC5211-5.0BM6-TR supports an absolute maximum input voltage of +20V on the IN pin, 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 device also withstands –20V on IN for reversed-polarity protection.
Does the MIC5211-5.0BM6-TR require external capacitors for stability?
Yes - the MIC5211-5.0BM6-TR requires a minimum 0.1µF ceramic capacitor from each output (OUTA and OUTB) to GND 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 values improve transient response but are not required.
Can both outputs of the MIC5211-5.0BM6-TR be enabled simultaneously?
Yes - the MIC5211-5.0BM6-TR supports concurrent operation of both 5.0V outputs by driving ENA and ENB high (≥2.0V). Each regulator functions independently, including current limiting and thermal shutdown, though they share thermal mass - total power dissipation must remain within 455mW at 25°C ambient to avoid die-level shutdown.
What is the shutdown current specification for the MIC5211-5.0BM6-TR?
When both ENA and ENB are held low (≤0.4V), the MIC5211-5.0BM6-TR draws ≤10µA total supply current - effectively zero off-mode current. This value includes leakage across both enable inputs and internal bias circuitry, enabling multi-year battery life in memory-retention or real-time clock backup applications.
Is the MIC5211-5.0BM6-TR pin-compatible with other MIC5211 variants?
Yes - all MIC5211 SOT-23-6 variants, including MIC5211-5.0BM6-TR, share identical pinout, package dimensions, and electrical interface. Voltage variants differ only in internal feedback network; thus, PCB layout is fully reusable across 1.8V–5.0V and mixed-voltage versions such as MIC5211-3.3/5.0BM6.
MIC5211-5.0BM6-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):
- 5V, 5V
- 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
MIC5211-5.0BM6-TR FAQ
1.How can I place an order for MIC5211-5.0BM6-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5211-5.0BM6-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 MIC5211-5.0BM6-TR reliable?
The price and inventory of MIC5211-5.0BM6-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5211-5.0BM6-TR is usually 5 days.
3.What payment methods are accepted for MIC5211-5.0BM6-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5211-5.0BM6-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5211-5.0BM6-TR?
MIC5211-5.0BM6-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5211-5.0BM6-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 MIC5211-5.0BM6-TR?
For technical support, including MIC5211-5.0BM6-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5211-5.0BM6-TR requirements.
6.How does Aetrix verify that MIC5211-5.0BM6-TR is sourced from the original manufacturer or authorized distributors?
All MIC5211-5.0BM6-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 MIC5211-5.0BM6-TR meets industry standards.
7.What is the process for return or replacement of MIC5211-5.0BM6-TR?
All MIC5211-5.0BM6-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5211-5.0BM6-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 MIC5211-5.0BM6-TR part is unused and in its original packaging.
Return procedure for MIC5211-5.0BM6-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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