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Microchip Technology MIC5206-2.85BM5-TR
- Part No.:
- MIC5206-2.85BM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5206-2.85BM5-TR.pdf
- Description:
- IC REG LIN 2.85V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,807
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Product details
Overview
MIC5206-2.85BM5-TR from Micrel is a 150mA low-noise LDO regulator in SOT-23-5 package, delivering fixed 2.85V output with 17mV dropout at light loads, ±1% initial accuracy, and logic-compatible enable/shutdown control - designed for battery-powered handheld devices requiring stable, ultra-low-quiescent-current regulation.
For engineers reviewing the MIC5206-2.85BM5-TR datasheet, MIC5206-2.85BM5-TR pinout, MIC5206-2.85BM5-TR application, or MIC5206-2.85BM5-TR equivalent, key selection criteria include dropout voltage at 150mA (165mV), ground current (600µA at 100mA), error flag functionality, reversed-battery protection, and compatibility with ceramic output capacitors.
Technical Context
The MIC5206-2.85BM5-TR uses a PNP pass transistor architecture enabling ultra-low dropout and minimal ground current across load range. Its internal undervoltage monitor drives an open-collector FLAG pin active-low at ~5% output undervoltage with 3% hysteresis.
It integrates reversed-battery protection and thermal shutdown, operates from 2.5V to 16V input, and supports CMOS/TTL enable logic (VIH ≥ 2.0V, VIL ≤ 0.4V) with near-zero shutdown current (≤5µA). The SOT-23-5 variant lacks BYP pin - noise performance is specified as typical PSRR of 75dB and no BYP-dependent eno value.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85V ±1% initial accuracy - ensures precise rail generation for low-voltage microcontrollers and RF front-ends. |
| Max Output Current | 150mA guaranteed - sufficient for powering baseband ICs, sensors, or small FPGAs in portable systems. |
| Dropout Voltage | 165mV at 150mA - enables operation down to VIN = 3.015V, extending battery runtime in single-cell Li-ion or alkaline applications. |
| Ground Current | 600µA at 100mA load - minimizes quiescent power loss critical for always-on subsystems. |
| PSRR | 75dB at 1kHz - suppresses switching noise from upstream DC/DC converters in mixed-signal designs. |
| Enable Threshold | VIL ≤ 0.4V (shutdown), VIH ≥ 2.0V (enable) - compatible with 3.3V and 5V logic without level-shifting. |
| Operating Temp | –40°C to +125°C junction - qualified for automotive infotainment and industrial edge nodes. |
Pinout & Package
SOT-23-5 package: 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, JEDEC MO-178AC compliant, thermal resistance θJA = 220°C/W on FR4 board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Supply Input | Accepts 2.5V–16V input; requires 1µF bypass capacitor if >10" trace length or battery source. |
| 2 - GND | Ground Reference | Common return for input, output, enable, and flag; must be low-impedance connection to minimize noise coupling. |
| 3 - EN | Enable/Shutdown Input | CMOS/TTL-compatible control: high ≥2.0V enables regulator; low ≤0.4V disables with <5µA shutdown current. |
| 4 - FLAG | Error Flag Output | Open-collector output active low when VOUT drops >5% below 2.85V; requires external pull-up to IN or system rail. |
| 5 - OUT | Regulated Output | Delivers 2.85V ±1% to load; requires ≥1.0µF output capacitor (tantalum/aluminum, ESR ≤5Ω) for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 17mV at light loads extends usable battery voltage range by >100mV in deep-discharge scenarios. |
| Logic-controlled enable | Sub-µA shutdown current enables system-level power gating without auxiliary switches or MOSFETs. |
| Undervoltage monitoring | FLAG pin provides deterministic fault signaling for host MCU reset or battery fuel-gauge correction. |
| Reversed-battery protection | Withstands –20V input without damage - eliminates need for external series diode in consumer battery compartments. |
| Tight line/load regulation | ±0.1% typical line regulation and ±0.2% load regulation ensure stable supply under dynamic load transients. |
Applications
| Cellular Handsets | Laptop Subsystem Power |
|---|---|
Use Scenario: Powering baseband processor I/O rails and SIM card interface in dual-mode GSM/UMTS handsets. IC Role / Device Role / Timing Role: Low-noise post-regulator supplying clean 2.85V to sensitive analog circuitry adjacent to RF sections. Use Value: 75dB PSRR prevents GSM burst noise from modulating the 2.85V rail, reducing bit error rate in cellular receivers. | Use Scenario: Providing always-on 2.85V supply to real-time clock (RTC), CMOS RAM, and keyboard controller during laptop suspend mode. IC Role / Device Role / Timing Role: Standby LDO maintaining memory retention and wake-event detection with <1µA total system leakage. Use Value: 600µA ground current at 100mA and "zero" off-mode current extend coin-cell life beyond 5 years in RTC backup applications. |
| PCMCIA Card Regulation | Industrial Sensor Node |
Use Scenario: Regulating VCC (3.3V → 2.85V) and enabling/disabling power to PCMCIA Type II cards in legacy notebook expansion slots. IC Role / Device Role / Timing Role: Hot-swap-capable LDO with fast enable/disable response and reversed-polarity protection. Use Value: EN pin timing allows synchronous power sequencing with card-detect signals; reversed-battery tolerance prevents damage during card insertion/removal. | Use Scenario: Supplying 2.85V to ultra-low-power wireless sensor SoCs (e.g., CC2652R) in battery-operated IIoT nodes deployed in remote locations. IC Role / Device Role / Timing Role: Primary system LDO delivering regulated power during active transmit/receive cycles and deep-sleep states. Use Value: 150mA capability supports peak RF transmit current; 165mV dropout enables operation down to 3.015V, maximizing energy extraction from primary lithium thionyl chloride cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | 250mA rated, 1.6µA quiescent current, no FLAG output, no reversed-battery protection. | Lacks fault signaling and polarity protection - suitable only where host MCU monitors VOUT externally and battery orientation is fixed. | Select when lowest IQ dominates design priority and fault reporting is handled elsewhere. |
| TPS76328DBVR | 150mA rated, 85µA IQ, integrated thermal/overcurrent protection, no FLAG or reversed-battery features. | Higher ground current reduces battery life in always-on use; no hardware-level undervoltage alert limits system reliability. | Choose for TI-ecosystem designs where simplified BOM and broad support outweigh missing protections. |
Compared with MCP1700-2802E/TO and TPS76328DBVR, the MIC5206-2.85BM5-TR uniquely combines ultra-low dropout (165mV), hardware FLAG signaling, and reversed-battery tolerance - making it the only option among the three qualified for unattended, safety-critical, or user-replaceable battery applications without additional protection circuitry.
Availability
MIC5206-2.85BM5-TR is available at Aetrix Electronics and suitable for cellular handset power management, laptop RTC backup, PCMCIA card regulation, industrial sensor nodes, and portable medical monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5206-2.85BM5-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 MIC5206 product line was engineered for battery-constrained portable electronics, emphasizing ultra-low dropout, minimal quiescent current, and integrated protection features to maximize runtime and system robustness.
FAQ
What is the maximum input voltage rating for the MIC5206-2.85BM5-TR?
The MIC5206-2.85BM5-TR has an absolute maximum input voltage rating of +20V, but its recommended operating input voltage range is +2.5V to +16V. Exceeding 16V during normal operation risks exceeding thermal limits or violating safe operating area constraints, especially at high load currents. Always observe the 16V upper limit in functional designs.
Does the MIC5206-2.85BM5-TR require an external bypass capacitor on the BYP pin?
No - the MIC5206-2.85BM5-TR is the SOT-23-5 fixed-voltage variant and does not include a BYP pin. That feature is exclusive to the 8-pin MSOP (BMM/YMM) versions. This simplifies layout and reduces BOM count, though it also means the ultra-low-noise performance (e.g., 260nV/√Hz with 470pF BYP) is not available on the MIC5206-2.85BM5-TR.
Can the MIC5206-2.85BM5-TR remain stable with no load connected?
Yes - the MIC5206-2.85BM5-TR maintains regulation and stability with zero load, drawing only its quiescent ground current (≤600µA at 100mA, scaling lower at lighter loads). This behavior is explicitly verified and makes the MIC5206-2.85BM5-TR suitable for CMOS RAM keep-alive and RTC backup applications where load current may drop to nanoamps.
What is the purpose of the FLAG pin on the MIC5206-2.85BM5-TR?
FLAG is an open-collector error flag output that goes low when the regulated 2.85V output falls more than ~5% below nominal (i.e., below ~2.71V), indicating undervoltage due to excessive load, low input, or thermal shutdown. It requires an external pull-up resistor (typically 47kΩ to IN) and provides hardware-level fault signaling independent of the host MCU's ADC or monitoring peripherals.
Is the MIC5206-2.85BM5-TR RoHS-compliant and halogen-free?
Yes - the "-TR" suffix denotes tape-and-reel packaging and Pb-free (RoHS-compliant) construction per Micrel's original specification. The device meets JEDEC J-STD-609 Category 1 for halogen content and is qualified for lead-free reflow soldering profiles up to 260°C peak temperature for 5 seconds, as documented in the official MIC5206 datasheet revision M9999-051506.
MIC5206-2.85BM5-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):
- 2.85V
- 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
MIC5206-2.85BM5-TR FAQ
1.How can I place an order for MIC5206-2.85BM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5206-2.85BM5-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 MIC5206-2.85BM5-TR reliable?
The price and inventory of MIC5206-2.85BM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5206-2.85BM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5206-2.85BM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5206-2.85BM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5206-2.85BM5-TR?
MIC5206-2.85BM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5206-2.85BM5-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 MIC5206-2.85BM5-TR?
For technical support, including MIC5206-2.85BM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5206-2.85BM5-TR requirements.
6.How does Aetrix verify that MIC5206-2.85BM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5206-2.85BM5-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 MIC5206-2.85BM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5206-2.85BM5-TR?
All MIC5206-2.85BM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5206-2.85BM5-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 MIC5206-2.85BM5-TR part is unused and in its original packaging.
Return procedure for MIC5206-2.85BM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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