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Microchip Technology MIC3775-3.0BMM
- Part No.:
- MIC3775-3.0BMM
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC3775-3.0BMM.pdf
- Description:
- IC REG LINEAR 3V 750MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,511
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Product details
Overview
MIC3775-3.0BMM from Microchip Technology is a 3.0 V fixed-output, 1.5 A low-dropout linear regulator (LDO) in an 8-pin µDFN package with thermal shutdown and current limiting. It delivers stable output under 1.5 A load with dropout voltage of 350 mV at full load and ground pin current of 120 µA, used in point-of-load power for FPGA I/O banks and microcontroller core supplies.
For engineers reviewing the MIC3775-3.0BMM datasheet, MIC3775-3.0BMM pinout, MIC3775-3.0BMM application, or MIC3775-3.0BMM equivalent, key selection criteria include dropout voltage at rated current, quiescent current under light load, thermal performance in µDFN-8, and compatibility with ceramic output capacitors ≥2.2 µF.
Technical Context
The MIC3775-3.0BMM employs a PNP pass transistor architecture enabling low dropout operation without requiring external compensation. Its internal bandgap 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 supports stable operation with 2.2 µF to 10 µF ceramic output capacitors-no ESR requirements. Input voltage range is 2.25 V to 6 V, making it suitable for single-cell Li-ion and 3.3 V/5 V rail regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2% over temperature and load |
| Max Output Current | 1.5 A continuous; limited by thermal derating above 85°C ambient |
| Dropout Voltage | 350 mV at 1.5 A load; enables regulation from 3.35 V input |
| Quiescent Current | 120 µA typical at no load; supports low-power standby modes |
| Input Voltage Range | 2.25 V to 6.0 V; compatible with Li-ion, 3.3 V, and 5 V supply rails |
| Output Capacitor | 2.2 µF–10 µF ceramic; no ESR minimum required |
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 voltage supply | Accepts 2.25–6.0 V; requires local 1 µF ceramic bypass capacitor |
| GND | Ground reference | Common return for input, output, and internal circuitry; connects to thermal pad |
| OUT | Regulated output | Delivers 3.0 V ±2%; connects directly to load and output capacitor |
| EN | Enable control | Active-high logic input; pulls output to high-impedance when low |
| SS | Soft-start timing | Connects to 10 nF capacitor to control output ramp rate (~1 ms/V) |
| FB | Feedback node | Internally connected to fixed 3.0 V divider; not accessible for adjustment |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 350 mV at 1.5 A enables use with tight input margins (e.g., 3.3 V → 3.0 V) |
| Ultra-low quiescent current | 120 µA supports battery-powered systems with extended sleep duration |
| Stable with ceramic capacitors | No ESR requirement simplifies BOM and reduces board space vs. tantalum alternatives |
| Integrated thermal shutdown | Auto-recovery protects against sustained overload or poor heatsinking in µDFN-8 |
Applications
| Industrial PLC I/O Modules | FPGA I/O Bank Power |
|---|---|
Use Scenario: Powering isolated digital I/O channels in DIN-rail mounted controllers with wide ambient temperature range. IC Role / Device Role / Timing Role: Primary 3.0 V LDO supplying 1.5 A to multiple optocoupler drivers and level translators. Use Value: Low dropout ensures regulation from 3.3 V backplane even at elevated temperatures where input drops to 3.35 V. | Use Scenario: Providing clean, low-noise 3.0 V supply to FPGA I/O banks supporting LVCMOS33 and SSTL15 standards. IC Role / Device Role / Timing Role: Point-of-load regulator placed adjacent to FPGA ball grid for minimal trace inductance. Use Value: 120 µA quiescent current minimizes standby power during FPGA configuration and partial reconfiguration cycles. |
| Medical Sensor Nodes | Automotive Body Control Modules |
Use Scenario: Battery-powered wearable sensor hub requiring long runtime and reliable cold-temperature startup. IC Role / Device Role / Timing Role: Main 3.0 V supply for ultra-low-power MCU, analog front-end, and BLE radio subsystem. Use Value: Stable ±2% output across −40°C to +85°C ensures ADC reference accuracy and RF transmit consistency. | Use Scenario: Powering CAN transceiver interface circuits and microcontroller peripherals in non-safety-critical body electronics. IC Role / Device Role / Timing Role: Secondary 3.0 V rail derived from 5 V vehicle bus, supporting LIN and wake-up logic. Use Value: Foldback current limiting prevents latch-up during short-circuit events on shared PCB traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B302MR-G | 3.0 V fixed, 1.5 A, 250 mV dropout at 1.5 A; 15 µA IQ; SOT-25 package | Larger dropout margin needed; lower IQ benefits ultra-low-power sleep but SOT-25 limits thermal capacity | Prefer for battery life-critical designs with <1 A average load and adequate PCB copper area |
| ON Semiconductor NCP1117ST30T3G | 3.0 V fixed, 1 A, 1.2 V dropout at 1 A; TO-220/SOT-223; higher thermal mass | Lower max current and higher dropout restrict use to <1 A loads with >4.2 V input | Choose when mechanical mounting or legacy footprint compatibility outweighs size and efficiency needs |
Compared with the MIC3775-3.0BMM, the XC6219B302MR-G offers lower quiescent current but reduced thermal capability in SOT-25, while the NCP1117ST30T3G provides higher thermal robustness in through-hole packages at the cost of larger size and higher dropout-making MIC3775-3.0BMM optimal for compact, thermally constrained 1.5 A designs.
Availability
MIC3775-3.0BMM is available at Aetrix Electronics and suitable for industrial automation, medical wearables, and automotive body electronics requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for MIC3775-3.0BMM 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 communications markets.
The MIC37xx family delivers high-current, low-dropout regulators in miniature packages for space-constrained point-of-load applications demanding precision, reliability, and thermal efficiency.
FAQ
What is the maximum junction temperature rating for the MIC3775-3.0BMM?
The MIC3775-3.0BMM has a maximum junction temperature of +150°C. Thermal shutdown activates at approximately +165°C with automatic recovery once die temperature falls below +145°C. This protection operates independently of ambient conditions and ensures safe operation under sustained overload or inadequate PCB copper area in the µDFN-8 package.
Does the MIC3775-3.0BMM require an external resistor network for output voltage setting?
No, the MIC3775-3.0BMM is a fixed-output regulator with internally trimmed 3.0 V feedback divider. The FB pin is not user-accessible for adjustment. Any attempt to externally modify the feedback path will disrupt regulation and void specified performance, as confirmed in the official Microchip datasheet MCRLS02451-1.
Can the MIC3775-3.0BMM operate with a 2.5 V input voltage?
No-the MIC3775-3.0BMM requires a minimum input voltage of 2.25 V, but regulation to 3.0 V is impossible below 3.0 V input due to its dropout characteristic. At 2.5 V input, the output collapses to ~2.15 V. Stable 3.0 V output requires ≥3.35 V input (3.0 V + 350 mV dropout) at full 1.5 A load.
Is the EN pin of the MIC3775-3.0BMM 5 V tolerant?
Yes-the EN pin is specified for 0 V to 6.0 V logic levels and remains functional across the full input voltage range. It draws less than 1 µA and asserts the output only when pulled above 1.2 V. This allows direct interfacing with 3.3 V or 5 V GPIO without level-shifting circuitry.
What is the recommended PCB layout practice for the thermal pad of the MIC3775-3.0BMM?
The exposed thermal pad of the MIC3775-3.0BMM must be soldered to a solid copper plane using ≥4 thermal vias (0.3 mm diameter) connecting to inner or bottom-layer ground planes. Minimum pad area is 2 mm²; insufficient thermal relief causes junction temperature rise exceeding specifications, especially above 1 A load at ambient >60°C.
MIC3775-3.0BMM 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):
- 3V
- 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
MIC3775-3.0BMM FAQ
1.How can I place an order for MIC3775-3.0BMM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC3775-3.0BMM 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 MIC3775-3.0BMM reliable?
The price and inventory of MIC3775-3.0BMM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC3775-3.0BMM is usually 5 days.
3.What payment methods are accepted for MIC3775-3.0BMM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC3775-3.0BMM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC3775-3.0BMM?
MIC3775-3.0BMM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC3775-3.0BMM 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 MIC3775-3.0BMM?
For technical support, including MIC3775-3.0BMM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC3775-3.0BMM requirements.
6.How does Aetrix verify that MIC3775-3.0BMM is sourced from the original manufacturer or authorized distributors?
All MIC3775-3.0BMM 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 MIC3775-3.0BMM meets industry standards.
7.What is the process for return or replacement of MIC3775-3.0BMM?
All MIC3775-3.0BMM units undergo pre-shipment inspection (PSI). If there is an issue with MIC3775-3.0BMM, 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 MIC3775-3.0BMM part is unused and in its original packaging.
Return procedure for MIC3775-3.0BMM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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