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Microchip Technology MIC5206-3.0BM5-TR
- Part No.:
- MIC5206-3.0BM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5206-3.0BM5-TR.pdf
- Description:
- IC REG LINEAR 3V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,538
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Product details
Overview
MIC5206-3.0BM5-TR from Micrel is a 150mA, 3.0V fixed-output low-dropout linear regulator in SOT-23-5 package, featuring 165mV dropout at full load, 600µA ground current at 100mA output, and ±1% initial output voltage accuracy. It delivers ultra-low-noise regulation for battery-powered portable electronics requiring stable, clean power under light-to-moderate loads.
For engineers reviewing the MIC5206-3.0BM5-TR datasheet, MIC5206-3.0BM5-TR pinout, MIC5206-3.0BM5-TR application, or MIC5206-3.0BM5-TR equivalent, key selection criteria include dropout performance at 150mA, enable/shutdown logic compatibility, undervoltage flag behavior, thermal resistance (220°C/W), and ceramic-capacitor stability requirements.
Technical Context
The MIC5206-3.0BM5-TR integrates a precision bandgap reference with internal error amplifier and PMOS pass transistor, enabling low dropout and tight line/load regulation. Its CMOS-compatible EN input supports TTL/CMOS logic-level control, and the open-collector FLAG pin asserts low when output falls >5% below nominal.
It employs reversed-battery protection and includes thermal shutdown plus current limiting. The SOT-23-5 variant lacks the BYP pin-so ultra-low-noise operation (260nV/√Hz) is not supported; noise performance is specified only for MSOP-8 versions with 470pF bypass capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% at 25°C; ensures stable core/sensor rail without external feedback components. |
| Max Output Current | 150mA guaranteed; supports moderate-power microcontrollers, RF front-ends, or analog sensors. |
| Dropout Voltage | 165mV at 150mA; enables operation down to VIN = 3.165V, critical for single-cell Li-ion or alkaline systems. |
| Ground Current | 600µA at 100mA load; minimizes quiescent drain during active operation to extend battery runtime. |
| Enable Threshold | VIH = 2.0V min; compatible with 3.3V and 5V logic families without level-shifting. |
| Thermal Resistance | θJA = 220°C/W (FR4, no ground plane); defines maximum power dissipation before thermal shutdown. |
| PSRR | 75dB at 1kHz; suppresses ripple from upstream switching regulators in hybrid SMPS/LDO architectures. |
Pinout & Package
Package: SOT-23-5 (M5), surface-mount, 5-pin plastic package with exposed pad (not electrically connected). Dimensions: 2.9mm × 1.6mm × 1.1mm.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input supply connection; accepts 2.5V–16V; requires ≥1µF input capacitance if source impedance is high. |
| 2 | GND | Power ground reference; must be low-impedance path to minimize noise coupling and thermal rise. |
| 3 | EN | Logic-enable input; pull high ≥2.0V to activate regulator; floating or low disables output and reduces IQ to ≤5µA. |
| 4 | FLAG | Open-collector undervoltage flag; sinks current when VOUT drops >5% below 3.0V; requires external pull-up. |
| 5 | OUT | Regulated 3.0V output; requires ≥1.0µF ceramic or tantalum output capacitor for stability (no BYP pin in this variant). |
Key Features
| Feature | Design Value |
|---|---|
| Logic-Controlled Enable | EN pin accepts standard CMOS/TTL levels; enables zero-current shutdown mode for battery preservation. |
| Undervoltage Monitoring | FLAG pin provides system-level fault detection with 3% hysteresis, supporting safe brown-out response. |
| Reversed-Battery Protection | Internal circuitry blocks reverse current flow if input polarity is inverted, protecting downstream circuitry. |
| Thermal & Current Limiting | Self-protecting design shuts down under overload or excessive ambient temperature, preventing permanent damage. |
| Tight Regulation | Line regulation <0.02%/V and load regulation <0.05%/100mA ensure stable output across varying source and load conditions. |
Applications
| Cellular Handsets | Laptop Subsystems |
|---|---|
|
Use Scenario: Powering baseband processor I/O rails and RF transceiver bias in GSM/UMTS handsets with single-cell Li-ion input. IC Role / Device Role / Timing Role: Primary LDO delivering clean 3.0V to noise-sensitive analog sections while rejecting switcher ripple. Use Value: 165mV dropout allows >95% battery utilization; 75dB PSRR prevents digital switching noise from corrupting RF receive sensitivity. |
Use Scenario: Regulating 3.0V for USB PHY, card reader controllers, or embedded security modules in ultraportable notebooks. IC Role / Device Role / Timing Role: Secondary post-regulator after buck converter, providing precise, low-noise voltage for interface ICs. Use Value: ±1% accuracy ensures compliance with USB 2.0 VBUS tolerance; FLAG signal enables firmware-controlled power fault logging. |
| PCMCIA VCC/VPP Switching | Industrial Sensor Nodes |
|
Use Scenario: Supplying 3.0V VCC and controlled 3.3V/5.0V VPP programming voltage in legacy PCMCIA/CardBus slots. IC Role / Device Role / Timing Role: Dual-role regulator: enabled during card insertion (VCC), disabled during hot-swap to isolate VPP circuitry. Use Value: Logic-enable pin synchronizes power delivery with slot controller signals; reversed-battery protection guards against misinsertion. |
Use Scenario: Powering low-power microcontrollers and MEMS accelerometers in battery-operated wireless sensor transmitters. IC Role / Device Role / Timing Role: Always-on LDO maintaining RTC and wake-up circuitry during deep sleep, with EN controlled by MCU GPIO. Use Value: 5µA shutdown current extends 10-year battery life; FLAG output triggers wake-up on supply sag due to aging cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/MB | 300mA rated, 1.6µA quiescent current, no FLAG output, no reversed-battery protection. | Lacks fault signaling and reverse-polarity hardening; suited for cost-sensitive, non-critical rails. | Select when higher output current and ultra-low IQ outweigh need for FLAG monitoring and robustness. |
| TPS76330DBVR | 150mA rated, 85µA typical IQ, integrated thermal shutdown, no FLAG or reversed-battery protection. | Offers tighter thermal specs but omits system-level diagnostics and polarity protection. | Prefer when board space is constrained and diagnostic capability is handled externally. |
Compared with MIC5206-3.0BM5-TR, MCP1700T-3002E/MB trades fault visibility and ruggedness for lower quiescent current and higher current headroom, while TPS76330DBVR simplifies layout by omitting FLAG and reverse-protection circuitry but requires external supervision for undervoltage events.
Availability
MIC5206-3.0BM5-TR is available at Aetrix Electronics and suitable for cellular telephony, portable computing, and industrial sensor node designs requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for MIC5206-3.0BM5-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 specializing in power management, timing, and interface ICs before its acquisition by Microchip Technology in 2015.
The MIC5206 family was designed for battery-powered portable electronics demanding ultra-low dropout, logic-controlled enable, and integrated fault monitoring - targeting handheld, medical, and industrial edge devices.
FAQ
What is the minimum input voltage required for MIC5206-3.0BM5-TR to maintain regulation?
The MIC5206-3.0BM5-TR requires VIN ≥ VOUT + dropout voltage. At 150mA load, dropout is 165mV, so minimum VIN = 3.0V + 0.165V = 3.165V. At lighter loads (e.g., 100µA), dropout drops to 17mV, allowing VIN as low as 3.017V while sustaining 3.0V output. Input must remain within 2.5V–16V absolute rating.
Does MIC5206-3.0BM5-TR support ceramic output capacitors?
Yes, MIC5206-3.0BM5-TR is stable with ceramic output capacitors ≥1.0µF. The datasheet specifies 1.0µF minimum when no reference bypass capacitor is used - which applies to the SOT-23-5 variant since it lacks the BYP pin. ESR should be ≤5Ω, and resonant frequency >1MHz for optimal transient response.
How does the FLAG pin function on MIC5206-3.0BM5-TR?
The FLAG pin on MIC5206-3.0BM5-TR is an open-collector output that pulls low when VOUT drops >5% below 3.0V (i.e., <2.85V), with 3% hysteresis. It requires an external pull-up resistor (e.g., 47kΩ to IN). During shutdown (EN low), FLAG is inactive (high-impedance); it only asserts during active regulation under undervoltage conditions.
Can MIC5206-3.0BM5-TR be used without connecting the EN pin?
Yes - MIC5206-3.0BM5-TR operates continuously if EN is tied directly to IN (pin 1). This configures it as a simple fixed-voltage LDO without enable control. Leaving EN floating is prohibited: it may cause erratic enable/disable behavior due to noise coupling, potentially damaging connected circuitry or causing system instability.
What thermal derating applies to MIC5206-3.0BM5-TR in a standard FR4 PCB layout?
With θJA = 220°C/W on FR4 (no ground plane), MIC5206-3.0BM5-TR's maximum safe power dissipation at 25°C ambient is ~450mW before reaching 125°C junction limit. At 40°C ambient, max dissipation drops to ~380mW. Derating is linear: for every 1°C rise in ambient, allowable power decreases by ~2.05mW.
MIC5206-3.0BM5-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):
- 3V
- 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
MIC5206-3.0BM5-TR FAQ
1.How can I place an order for MIC5206-3.0BM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5206-3.0BM5-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 MIC5206-3.0BM5-TR reliable?
The price and inventory of MIC5206-3.0BM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5206-3.0BM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5206-3.0BM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5206-3.0BM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5206-3.0BM5-TR?
MIC5206-3.0BM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5206-3.0BM5-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 MIC5206-3.0BM5-TR?
For technical support, including MIC5206-3.0BM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5206-3.0BM5-TR requirements.
6.How does Aetrix verify that MIC5206-3.0BM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5206-3.0BM5-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 MIC5206-3.0BM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5206-3.0BM5-TR?
All MIC5206-3.0BM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5206-3.0BM5-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 MIC5206-3.0BM5-TR part is unused and in its original packaging.
Return procedure for MIC5206-3.0BM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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