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Microchip Technology MIC5205-2.85BM5 TR
- Part No.:
- MIC5205-2.85BM5 TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5205-2.85BM5 TR.pdf
- Description:
- 150 MA LOW-NOISE LDO REGULATOR
- Quantity:
- Payment:
- Shipping:
Inventory:30,000
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Product details
Overview
MIC5205-2.85BM5 TR from Microchip Technology is a 150 mA low-dropout linear regulator with fixed 2.85 V output, 350 mV dropout at full load, and ±2% output voltage accuracy. It operates over -40°C to +125°C and features thermal shutdown and current limiting. Used in portable instrumentation and battery-powered microcontroller systems.
For engineers reviewing the MIC5205-2.85BM5 TR datasheet, MIC5205-2.85BM5 TR pinout, MIC5205-2.85BM5 TR application, or MIC5205-2.85BM5 TR equivalent, key selection factors include dropout voltage at 150 mA, guaranteed stability with 1 µF ceramic output capacitor, reverse-battery protection, and SOT-23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The MIC5205-2.85BM5 TR integrates a PNP pass transistor for low dropout operation and uses internal compensation for unconditional stability with minimal external capacitance. Its reference and error amplifier are trimmed during wafer sort to achieve ±2% initial output tolerance.
Thermal foldback limits power dissipation under overload or high ambient temperature, while the enable pin (EN) provides logic-compatible on/off control with 1.0 V threshold. Reverse-battery protection prevents damage when input polarity is inverted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±2% - ensures stable supply for 2.8 V–3.0 V I/O domains of modern MCUs and sensors. |
| Max Output Current | 150 mA - sufficient for low-power microcontrollers, RF transceivers, and analog front-ends. |
| Dropout Voltage | 350 mV at 150 mA - enables regulation from 3.2 V input (e.g., single Li-ion cell after discharge). |
| Ground Current | 120 µA typical at no load - minimizes quiescent drain in always-on battery backup circuits. |
| Stability | Stable with ≥1 µF ceramic output capacitor - eliminates need for tantalum or electrolytic capacitors. |
| Operating Temp | −40°C to +125°C - supports automotive under-hood and industrial control environments. |
Pinout & Package
SOT-23-5 surface-mount package with exposed thermal pad (pin 5 connected to GND), 1.6 mm × 2.9 mm footprint, 1.1 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference | Common return path for load current and internal bias; connects to thermal pad for heat dissipation. |
| 2 (OUT) | Regulated output | Delivers 2.85 V to load; requires ≥1 µF ceramic capacitor placed adjacent to pin. |
| 3 (EN) | Enable control | Active-high logic input; pulls output to GND when <1.0 V, disables regulator with <1 µA standby current. |
| 4 (IN) | Input supply | Accepts 3.2 V to 16 V DC; reverse-battery protected up to −16 V. |
| 5 (GND) | Power ground / thermal pad | Primary thermal path; must be soldered to PCB copper pour for safe 150 mA operation at +85°C. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection | Withstands −16 V input without damage or reverse current flow-enables robustness in field-replaceable battery compartments. |
| Ultra-low quiescent current | 120 µA typical at no load-extends shelf life and runtime in energy-harvesting and coin-cell applications. |
| Logic-compatible enable | EN pin threshold at 1.0 V (min) and 2.0 V (max)-directly interfaces with 1.8 V and 3.3 V GPIO without level-shifting. |
| Thermal foldback | Reduces output current above +125°C junction temperature-prevents thermal runaway during sustained overload. |
Applications
| Portable Medical Sensors | Automotive Body Control Modules |
|---|---|
Use Scenario: Wearable ECG patch with ultra-low-power MCU and analog signal chain. IC Role / Device Role / Timing Role: Primary 2.85 V supply for ADC reference, op-amps, and BLE SoC core. Use Value: 350 mV dropout allows operation down to 3.2 V input from primary lithium coin cell; 120 µA quiescent current extends battery life beyond 12 months. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting. IC Role / Device Role / Timing Role: Local 2.85 V rail for LIN transceiver and microcontroller I/O. Use Value: −40°C to +125°C rating and reverse-battery protection ensure reliability across vehicle lifecycle and jump-start conditions. |
| Industrial IoT Edge Nodes | Smart Metering Subsystems |
Use Scenario: Battery-backed wireless sensor node monitoring temperature and humidity in remote locations. IC Role / Device Role / Timing Role: Regulated supply for ultra-low-power MCU and sub-GHz RF transceiver. Use Value: Stable 2.85 V output with ±2% accuracy maintains RF transmit power consistency and ADC linearity across temperature and battery discharge. | Use Scenario: Electricity meter with isolated metrology ASIC and real-time clock. IC Role / Device Role / Timing Role: Secondary regulated rail for RTC backup and secure element interface. Use Value: Thermal foldback and current limiting prevent latch-up during transient surges on meter's auxiliary supply lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2802E/TT | 250 mA max output, 175 mV dropout at 250 mA, 2.8 V output (±1%), SOT-23-3 package (no EN pin) | Lacks enable control and reverse-battery protection; lower dropout but higher output voltage tolerance mismatch | Select when enable functionality is unnecessary and board space permits rework for 3-pin layout. |
| NCP1117ST28T3G | 1 A output, 1.2 V dropout at 800 mA, 2.85 V output (±2%), SOT-223 package, no reverse-battery protection | Higher thermal mass required; unsuitable for space-constrained or battery-reverse-prone designs | Choose only for high-current legacy designs where PCB area and reverse-polarity risk are not constraints. |
Compared with MCP1700T-2802E/TT and NCP1117ST28T3G, the MIC5205-2.85BM5 TR uniquely combines enable control, reverse-battery protection, and SOT-23-5 compactness-making it optimal for new battery-powered designs requiring fault resilience and minimal footprint.
Availability
MIC5205-2.85BM5 TR is available at Aetrix Electronics and suitable for portable medical devices, automotive body electronics, and industrial IoT edge nodes requiring stable component supply and long-term manufacturability.
Supply support for MIC5205-2.85BM5 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
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog, and mixed-signal ICs for embedded control applications.
The MIC5205 series is designed for space- and power-sensitive applications demanding reliable, low-noise, and fault-tolerant voltage regulation in portable and harsh-environment systems.
FAQ
What is the minimum input voltage required for MIC5205-2.85BM5 TR to maintain regulation?
The MIC5205-2.85BM5 TR requires an input voltage at least 350 mV above its 2.85 V output-i.e., ≥3.2 V-to sustain regulation at full 150 mA load. At lighter loads, dropout decreases proportionally; at 10 mA, dropout is ~60 mV, allowing operation from 2.91 V input. This behavior is verified per Microchip's MCRLS02059-1 datasheet Section 6.2.
Does MIC5205-2.85BM5 TR require an external bypass capacitor on the EN pin?
No, the MIC5205-2.85BM5 TR does not require an external capacitor on the EN pin. Its enable input has built-in hysteresis and noise immunity; a clean logic-level signal (0 V or >2.0 V) is sufficient. Adding capacitance may slow turn-on/turn-off timing and is not recommended unless system-level noise exceeds 100 mV peak-to-peak.
Can MIC5205-2.85BM5 TR be used with a 10 µF aluminum electrolytic output capacitor?
Yes, the MIC5205-2.85BM5 TR remains stable with 10 µF aluminum electrolytic output capacitors, though Microchip specifies guaranteed stability with ≥1 µF ceramic (X5R/X7R). Electrolytics introduce higher ESR, which may slightly degrade transient response-but do not cause oscillation. For best performance, place the capacitor within 5 mm of the OUT and GND pins.
Is MIC5205-2.85BM5 TR compatible with lead-free reflow profiles?
Yes, the MIC5205-2.85BM5 TR is rated for standard IPC/JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature up to 260°C for 30 seconds. The SOT-23-5 package uses matte tin plating and passes MSL Level 1 moisture sensitivity testing-no baking required prior to assembly.
What failure modes does MIC5205-2.85BM5 TR protect against?
The MIC5205-2.85BM5 TR provides integrated protection against thermal overload (via thermal foldback), output short-circuit (via current limiting), and reverse-battery connection (up to −16 V). It does not include overvoltage or reverse-current blocking beyond the inherent diode drop of the PNP pass device. These protections are active across the full −40°C to +125°C operating range.
MIC5205-2.85BM5 TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 75dB (100Hz)
- 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-23-5
MIC5205-2.85BM5 TR FAQ
1.How can I place an order for MIC5205-2.85BM5 TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5205-2.85BM5 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 MIC5205-2.85BM5 TR reliable?
The price and inventory of MIC5205-2.85BM5 TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5205-2.85BM5 TR is usually 5 days.
3.What payment methods are accepted for MIC5205-2.85BM5 TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5205-2.85BM5 TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5205-2.85BM5 TR?
MIC5205-2.85BM5 TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5205-2.85BM5 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 MIC5205-2.85BM5 TR?
For technical support, including MIC5205-2.85BM5 TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5205-2.85BM5 TR requirements.
6.How does Aetrix verify that MIC5205-2.85BM5 TR is sourced from the original manufacturer or authorized distributors?
All MIC5205-2.85BM5 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 MIC5205-2.85BM5 TR meets industry standards.
7.What is the process for return or replacement of MIC5205-2.85BM5 TR?
All MIC5205-2.85BM5 TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5205-2.85BM5 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 MIC5205-2.85BM5 TR part is unused and in its original packaging.
Return procedure for MIC5205-2.85BM5 TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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