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Microchip Technology MIC5206-2.5BM5-TR
- Part No.:
- MIC5206-2.5BM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5206-2.5BM5-TR.pdf
- Description:
- IC REG LINEAR 2.5V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,778
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Product details
Overview
MIC5206-2.5BM5-TR from Micrel is a 2.5V fixed-output, 150mA low-noise LDO regulator in SOT-23-5 package, featuring 17mV dropout at light load, 600µA ground current at 100mA output, and ±1% initial output voltage accuracy. It delivers stable power to battery-sensitive subsystems such as RF front-ends and precision analog sensors in portable electronics.
For engineers reviewing the MIC5206-2.5BM5-TR datasheet, MIC5206-2.5BM5-TR pinout, MIC5206-2.5BM5-TR application, or MIC5206-2.5BM5-TR equivalent, key selection criteria include ultra-low-noise operation (enabled via BYP pin), logic-compatible enable/shutdown control, undervoltage error flag output, and reversed-battery protection for robust mobile power design.
Technical Context
The MIC5206-2.5BM5-TR uses a PNP pass transistor architecture enabling ultra-low dropout and minimal ground current across load range. Its internal undervoltage monitor compares output against reference with 5% threshold and 3% hysteresis, driving an open-collector FLAG pin.
It supports external noise reduction via 470pF capacitor on BYP pin (though not available in SOT-23-5 variant per pinout), and features CMOS/TTL-compatible EN input with <0.4V logic-low threshold and <20µA input current. Thermal shutdown and current limiting protect under fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% initial accuracy - ensures stable biasing for 2.5V logic or analog circuitry without external feedback. |
| Max Output Current | 150mA guaranteed - sufficient for powering microcontrollers, sensors, or RF ICs in compact portable systems. |
| Dropout Voltage | 165mV at 150mA - enables regulation from 2.665V input, critical for single-cell Li-ion or Li-poly battery operation down to end-of-discharge. |
| Ground Current | 600µA at 100mA load - minimizes quiescent power loss, extending battery runtime in always-on monitoring functions. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters, preserving signal integrity in ADC or RF stages. |
| Enable Threshold | VIL ≤ 0.4V, VIH ≥ 2.0V - compatible with 3.3V and 5V logic families, allowing direct interface to microcontroller GPIOs. |
| Operating Input Range | +2.5V to +16V - supports wide-input applications including industrial 12V rails and multi-cell battery packs. |
Pinout & Package
Package: 5-pin SOT-23 (M5), surface-mount, JEDEC MO-178AA compliant, footprint compatible with LP2980 but with superior electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Supply Input | Primary power input; accepts 2.5–16V; requires 1µF bypass capacitor if >10" trace length or battery source. |
| 2 - GND | Ground Reference | Common return path for input, output, and internal circuitry; must be low-impedance connection to minimize noise coupling. |
| 3 - EN | Enable/Shutdown Control | CMOS/TTL-compatible digital input; high = active, low/open = shutdown; draws <20µA when enabled. |
| 4 - FLAG | Error Flag Output | Open-collector output; pulls low when VOUT drops >5% below 2.5V; requires external pull-up to IN or system rail. |
| 5 - OUT | Regulated Output | 2.5V regulated output; requires ≥1.0µF ceramic or tantalum capacitor (ESR ≤5Ω) for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-noise architecture | Low inherent noise floor; though BYP pin absent in SOT-23-5, achieves 75dB PSRR at 1kHz for clean analog/RF supply. |
| Logic-controlled enable | EN pin allows precise power sequencing and zero-current shutdown (<5µA), ideal for sleep-mode optimization. |
| Undervoltage monitoring | FLAG output provides real-time fault detection with 3% hysteresis, enabling system-level brown-out recovery without external comparators. |
| Reversed-battery protection | Internal circuitry blocks reverse current flow if input polarity is inverted - prevents damage during battery replacement or field servicing. |
| Thermal & current limiting | Self-protecting operation under overload or high ambient temperature; shuts down before junction exceeds 125°C. |
Applications
| Cellular RF Front-End Power | Laptop Baseband Core Supply |
|---|---|
Use Scenario: Powers low-noise amplifiers (LNAs) and mixer bias circuits in 4G/5G handset transceivers where supply ripple directly impacts EVM and sensitivity. IC Role / Device Role / Timing Role: Low-dropout, low-PSRR LDO providing clean 2.5V rail isolated from noisy PMIC switchers. Use Value: 165mV dropout enables operation down to 2.665V input, supporting full discharge of single-cell Li-ion while maintaining 75dB ripple rejection at RF frequencies. |
Use Scenario: Supplies 2.5V core voltage to baseband processors or audio codecs in ultraportable laptops during active and suspend states. IC Role / Device Role / Timing Role: Primary linear regulator delivering tightly regulated, low-quiescent-power supply with enable control synchronized to SoC power states. Use Value: 600µA ground current at 100mA load extends battery life in always-on audio monitoring; EN pin enables fast, deterministic power gating. |
| Industrial Sensor Node Bias | PCMCIA Card VCC Regulation |
Use Scenario: Powers precision 24-bit sigma-delta ADCs and MEMS sensor interfaces in battery-operated wireless condition-monitoring nodes. IC Role / Device Role / Timing Role: High-accuracy, low-drift LDO ensuring stable reference and analog supply independent of battery aging or temperature drift. Use Value: ±1% initial accuracy and 40ppm/°C tempco maintain measurement integrity over –40°C to +85°C operating range without calibration. |
Use Scenario: Regulates VCC (3.3V or 5V) for PCMCIA/CompactFlash cards in legacy industrial controllers and data acquisition systems. IC Role / Device Role / Timing Role: Fixed-voltage LDO with fast transient response and reverse-polarity protection for hot-swap card insertion. Use Value: Reversed-battery protection prevents damage during incorrect card insertion; 150mA rating supports full-card operation including flash programming bursts. |
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 | 250mA rated, 6µA quiescent current, no FLAG or EN; SOT-23-3 package (3-pin, no enable/flag) | Lacks enable control and fault reporting; suitable only for always-on, non-critical rails | Select when ultra-low IQ is primary requirement and system-level monitoring replaces FLAG functionality. |
| TPS76325DBVR | 150mA, 85µA IQ, integrated thermal/overcurrent protection, 300mV dropout at 150mA, SOT-23-5 | Higher dropout and quiescent current; includes active-high EN but no FLAG output | Choose when board space permits slightly higher dropout and FLAG is not required for fault logging or system reset. |
Compared with MCP1700T-2502E/MB and TPS76325DBVR, the MIC5206-2.5BM5-TR uniquely combines ultra-low dropout (165mV), integrated undervoltage flag, and logic-enable in a standard SOT-23-5 - making it optimal for battery-constrained systems requiring both efficiency and fault observability.
Availability
MIC5206-2.5BM5-TR is available at Aetrix Electronics and suitable for cellular telephony power management, laptop baseband regulation, and industrial sensor node biasing requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for MIC5206-2.5BM5-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 analog and mixed-signal semiconductor company founded in 1978 and acquired by Microchip Technology in 2015; known for high-performance power management and timing solutions.
The MIC5206 family was designed specifically for handheld, battery-powered devices requiring ultra-low-noise, low-dropout regulation with intelligent supervision - targeting applications where runtime, signal integrity, and fault resilience are co-optimized.
FAQ
What is the maximum input voltage rating for the MIC5206-2.5BM5-TR?
The MIC5206-2.5BM5-TR has an absolute maximum input voltage rating of +20V, but its recommended operating input voltage range is +2.5V to +16V. Exceeding +16V may trigger internal protection or degrade long-term reliability, even if within absolute limits. Always refer to the "Operating Ratings" section of the official Micrel datasheet for safe design margins.
Does the MIC5206-2.5BM5-TR support ultra-low-noise operation with a bypass capacitor?
No - the MIC5206-2.5BM5-TR is the 5-pin SOT-23 variant and does not include the BYP (bypass) pin. That feature is exclusive to the 8-pin MSOP versions (e.g., MIC5206-2.5BMM). While the MIC5206-2.5BM5-TR still achieves excellent 75dB PSRR at 1kHz, it cannot leverage external 470pF capacitors for further noise reduction like the MM variants can.
Can the MIC5206-2.5BM5-TR be used without connecting the EN pin?
Yes - the EN pin of the MIC5206-2.5BM5-TR may be tied directly to the IN pin to permanently enable the device. Leaving EN floating is prohibited; it must be actively driven high (>2.0V) or pulled to IN. This configuration eliminates external control but retains all regulation functionality including FLAG output and thermal protection.
What output capacitor value is required for stable operation of the MIC5206-2.5BM5-TR?
The MIC5206-2.5BM5-TR requires a minimum 1.0µF ceramic or tantalum output capacitor (ESR ≤5Ω) between OUT and GND for stability. Larger values improve transient response. Electrolytic capacitors are acceptable if rated for the operating temperature range; solid tantalum is preferred for operation below –25°C due to electrolyte freezing concerns in aluminum types.
How does the FLAG pin function on the MIC5206-2.5BM5-TR?
The FLAG pin on the MIC5206-2.5BM5-TR is an open-collector output that pulls low when the regulated output falls more than ~5% below 2.5V (i.e., <2.375V), indicating an undervoltage fault. It includes 3% hysteresis to prevent chatter. A pull-up resistor (typically 47kΩ to IN) is required; if unused, FLAG may be left unconnected with no pull-up.
MIC5206-2.5BM5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 2.5 mA
- PSRR:
- -
- Control Features:
- Enable, Error Flag
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MIC5206-2.5BM5-TR FAQ
1.How can I place an order for MIC5206-2.5BM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5206-2.5BM5-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 MIC5206-2.5BM5-TR reliable?
The price and inventory of MIC5206-2.5BM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5206-2.5BM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5206-2.5BM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5206-2.5BM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5206-2.5BM5-TR?
MIC5206-2.5BM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5206-2.5BM5-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 MIC5206-2.5BM5-TR?
For technical support, including MIC5206-2.5BM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5206-2.5BM5-TR requirements.
6.How does Aetrix verify that MIC5206-2.5BM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5206-2.5BM5-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 MIC5206-2.5BM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5206-2.5BM5-TR?
All MIC5206-2.5BM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5206-2.5BM5-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 MIC5206-2.5BM5-TR part is unused and in its original packaging.
Return procedure for MIC5206-2.5BM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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