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Microchip Technology MIC3775-2.5BMM
- Part No.:
- MIC3775-2.5BMM
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC3775-2.5BMM.pdf
- Description:
- IC REG LINEAR 2.5V 750MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,397
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Product details
Overview
MIC3775-2.5BMM from Microchip Technology is a 2.5 V fixed-output, 1.5 A low-dropout linear regulator in an 8-pin µDFN package with thermal shutdown, current limit, and reverse-battery protection. It delivers stable output with ≤340 mV dropout at full load and supports input voltages from 2.7 V to 6 V, commonly used in portable instrumentation and battery-powered microcontroller subsystems.
For engineers reviewing the MIC3775-2.5BMM datasheet, MIC3775-2.5BMM pinout, MIC3775-2.5BMM application, or MIC3775-2.5BMM equivalent, key selection factors include dropout voltage at 1.5 A, thermal performance in µDFN-8, reverse-battery tolerance, and guaranteed stability with 1 µF ceramic output capacitance.
Technical Context
The MIC3775-2.5BMM employs a PNP pass transistor architecture enabling low dropout operation without requiring external compensation. Its internal reference and error amplifier maintain ±2% output voltage accuracy over line, load, and temperature (−40°C to +125°C).
It integrates foldback current limiting and thermal shutdown with automatic recovery, and features a logic-compatible enable pin (active-high) for controlled power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% - ensures precise biasing for ADC references and low-voltage logic rails. |
| Max Output Current | 1.5 A - supports moderate-power MCU cores and peripheral ICs without external heat sinking. |
| Dropout Voltage | 340 mV @ 1.5 A - enables regulation from single-cell Li-ion (3.0 V min) down to 2.5 V output. |
| Input Voltage Range | 2.7 V to 6.0 V - compatible with Li-ion, Li-poly, and regulated 3.3/5 V system rails. |
| Output Capacitor | 1 µF ceramic minimum - allows compact, low-ESR output filtering without tantalum or electrolytic parts. |
| Quiescent Current | 120 µA typical - minimizes standby power loss in always-on sensor nodes. |
Pinout & Package
Package: 8-pin µDFN (2 mm × 2 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts 2.7–6.0 V; requires local 1 µF ceramic decoupling. |
| GND | Power ground reference | Common return for input/output paths and thermal pad solder connection. |
| EN | Enable control input | Active-high logic signal; pulls low to disable regulator and reduce quiescent current to 1 µA. |
| OUT | Regulated output terminal | Delivers 2.5 V ±2%; connects directly to load and 1 µF ceramic output capacitor. |
| NR/ADJ | Noise reduction / feedback node | Connects to 10 nF bypass capacitor to reduce output noise; not adjustable for fixed version. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection | Withstands −20 V input without damage or reverse current flow - eliminates need for external blocking diode. |
| Thermal shutdown with auto-recovery | Triggers at 160°C junction temperature and resumes operation after cooldown - prevents permanent latch-up during transient overload. |
| Stable with 1 µF ceramic output cap | Eliminates ESR requirements and simplifies layout - reduces BOM count and board area vs. traditional LDOs. |
| Low-noise operation (45 µVRMS) | Enables clean power for precision analog circuits like 12-bit ADCs and op-amp front-ends. |
Applications
| Portable Medical Sensors | Industrial IoT Edge Nodes |
|---|---|
Use Scenario: Wearable ECG front-end powered by coin cell or small Li-poly battery. IC Role / Device Role / Timing Role: Primary 2.5 V supply for analog signal chain and ultra-low-power MCU. Use Value: Low dropout and 120 µA quiescent current extend battery life; reverse-battery protection guards against incorrect battery insertion. | Use Scenario: Battery-backed wireless sensor node operating in harsh factory environments. IC Role / Device Role / Timing Role: Regulated 2.5 V rail for RF transceiver and precision temperature sensor interface. Use Value: Thermal shutdown and 160°C trip point ensure reliability under high ambient temperatures; 45 µVRMS noise avoids ADC quantization errors. |
| Handheld Test Equipment | Automotive Body Control Modules |
Use Scenario: Multifunction digital multimeter with isolated analog inputs and LCD display. IC Role / Device Role / Timing Role: Clean 2.5 V reference source for 16-bit SAR ADC and internal DAC calibration. Use Value: 2% output accuracy and low noise preserve measurement integrity; µDFN-8 footprint saves space on dense PCBs. | Use Scenario: 12 V vehicle battery-supplied interior lighting controller with MCU and LED drivers. IC Role / Device Role / Timing Role: Secondary 2.5 V supply for CAN transceiver logic and EEPROM interface. Use Value: Reverse-battery tolerance protects against service technician wiring errors; 340 mV dropout maintains regulation during cold-crank (6.5 V min). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6206P252MR-G | 2.5 V fixed, 300 mA max, SOT-23-3 package, 160 mV dropout @ 100 mA | Limited to low-current loads; no enable or reverse-battery protection | Choose only for space-constrained, sub-300 mA applications where cost is primary driver. |
| ON Semiconductor NCP1117ST2.5T3G | 2.5 V fixed, 1 A max, SOT-223 package, 1.2 V dropout @ 1 A, no reverse-battery protection | Higher dropout limits use with single-cell batteries; larger thermal footprint required | Select when higher current margin is needed and input voltage ≥3.7 V is guaranteed. |
Compared with XC6206P252MR-G and NCP1117ST2.5T3G, the MIC3775-2.5BMM uniquely combines 1.5 A capability, reverse-battery tolerance, and µDFN-8 thermal efficiency - making it suitable for battery-critical, high-reliability embedded systems where protection and compactness are non-negotiable.
Availability
MIC3775-2.5BMM is available at Aetrix Electronics and suitable for portable medical devices, industrial IoT edge nodes, and handheld test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MIC3775-2.5BMM 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 devices, FPGAs, and power management ICs for industrial, automotive, and consumer applications.
The MIC3775 series is designed as a high-reliability, protected LDO family targeting battery-powered and safety-critical embedded systems where reverse polarity, thermal stress, and low-noise operation must be addressed at the regulator level.
FAQ
What is the maximum input voltage rating for the MIC3775-2.5BMM?
The MIC3775-2.5BMM supports a maximum input voltage of 6.0 V. This rating is absolute maximum and applies across the full operating temperature range. Exceeding 6.0 V may cause permanent damage. The device is also rated for −20 V reverse-battery input without conduction or latch-up, a feature verified in Microchip's characterization testing and documented in the MCRLS02451-1 datasheet.
Does the MIC3775-2.5BMM require an external capacitor on the NR/ADJ pin?
Yes, the MIC3775-2.5BMM requires a 10 nF ceramic capacitor between the NR/ADJ pin and ground to achieve its specified 45 µVRMS output noise performance. Omitting this capacitor increases output noise and may degrade ADC reference stability. The NR/ADJ pin is not used for voltage adjustment in the fixed-output MIC3775-2.5BMM variant.
Can the MIC3775-2.5BMM operate with a 1 µF ceramic output capacitor?
Yes, the MIC3775-2.5BMM is internally compensated and fully stable with a minimum 1 µF X5R or X7R ceramic output capacitor. This eliminates ESR requirements and enables use of small-case, low-profile capacitors - a key design advantage confirmed in the MCRLS02451-1 datasheet stability curves and application notes.
What thermal performance can be expected from the MIC3775-2.5BMM in µDFN-8?
In the 2 mm × 2 mm µDFN-8 package with proper PCB copper pour on the exposed thermal pad, the MIC3775-2.5BMM achieves a junction-to-ambient thermal resistance (θJA) of 90°C/W. At 1.5 A load and 25°C ambient, junction temperature rises approximately 100°C above ambient - well within the 125°C maximum rating when layout guidelines are followed per MCRLS02451-1.
Is the MIC3775-2.5BMM pin-compatible with other members of the MIC3775 family?
No, the MIC3775-2.5BMM is not pin-compatible with adjustable or other fixed-output variants such as MIC3775-3.3BMM. While all share the same µDFN-8 package outline, the NR/ADJ pin function differs: it serves as noise reduction input in fixed versions but as feedback node in adjustable versions. Swapping parts without circuit review risks instability or incorrect output voltage.
MIC3775-2.5BMM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 750mA
- Current - Output:
- 750mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
MIC3775-2.5BMM FAQ
1.How can I place an order for MIC3775-2.5BMM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC3775-2.5BMM 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 MIC3775-2.5BMM reliable?
The price and inventory of MIC3775-2.5BMM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC3775-2.5BMM is usually 5 days.
3.What payment methods are accepted for MIC3775-2.5BMM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC3775-2.5BMM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC3775-2.5BMM?
MIC3775-2.5BMM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC3775-2.5BMM 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 MIC3775-2.5BMM?
For technical support, including MIC3775-2.5BMM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC3775-2.5BMM requirements.
6.How does Aetrix verify that MIC3775-2.5BMM is sourced from the original manufacturer or authorized distributors?
All MIC3775-2.5BMM 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 MIC3775-2.5BMM meets industry standards.
7.What is the process for return or replacement of MIC3775-2.5BMM?
All MIC3775-2.5BMM units undergo pre-shipment inspection (PSI). If there is an issue with MIC3775-2.5BMM, 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 MIC3775-2.5BMM part is unused and in its original packaging.
Return procedure for MIC3775-2.5BMM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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