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Microchip Technology MIC5201-3.0BM
- Part No.:
- MIC5201-3.0BM
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MIC5201-3.0BM.pdf
- Description:
- IC REG LINEAR 3V 200MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,121
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Product details
Overview
MIC5201-3.0BM from Microchip Technology is a 3.0 V fixed-output, 100 mA low-dropout (LDO) linear regulator in an 8-pin SOIC package, featuring 350 mV dropout at full load, ±2% output voltage accuracy, and thermal shutdown protection. It powers microcontroller core logic in portable instrumentation where stable low-noise supply and minimal board space are critical.
For engineers reviewing the MIC5201-3.0BM datasheet, MIC5201-3.0BM pinout, MIC5201-3.0BM application, or MIC5201-3.0BM equivalent, key selection criteria include dropout voltage at 100 mA, load regulation over 1–100 mA, reverse current blocking, and thermal performance in SOIC-8 without heatsink.
Technical Context
The MIC5201-3.0BM uses a PNP pass transistor architecture enabling true reverse-current blocking and eliminating the need for an external reverse-protection diode. Its internal bandgap reference and error amplifier deliver tight DC regulation and low output noise (40 µVRMS) across temperature and line variations.
Designed for battery-powered systems, it integrates thermal foldback and short-circuit current limiting with automatic recovery. The device operates from 2.5 V to 16 V input and maintains regulation down to 3.35 V input at 100 mA load - consistent with its 350 mV dropout specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2% - ensures compatible logic-level supply for 3.3 V I/O-tolerant MCUs without external feedback network. |
| Max Output Current | 100 mA - supports single-core microcontrollers, sensors, and low-power RF transceivers without derating in SOIC-8. |
| Dropout Voltage | 350 mV at 100 mA - enables operation from single Li-ion (3.0–4.2 V) or two alkaline cells (3.0 V min) with margin. |
| Ground Pin Current | 1.2 mA typical at full load - contributes <1.2% of total load current, minimizing quiescent power loss in always-on circuits. |
| PSRR | 70 dB at 120 Hz - suppresses ripple from switching pre-regulators or noisy DC/DC converters upstream. |
| Operating Input Range | 2.5 V to 16 V - accommodates wide-input industrial supplies and automotive cold-crank transients when used with external clamping. |
Pinout & Package
Package: 8-pin SOIC (SOIC-8), body size 3.9 mm × 4.9 mm, standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2.5–16 V; requires local 1 µF ceramic bypass capacitor within 5 mm for stability. |
| 2 (GND) | Ground reference | Power ground return path; must be connected directly to PCB ground plane under IC for thermal and noise control. |
| 3 (EN) | Enable control input | Active-high logic input; pulls high internally via 1.2 MΩ resistor - allows direct connection to MCU GPIO or open-drain driver. |
| 4 (OUT) | Regulated output | Delivers 3.0 V ±2%; requires 3.3 µF minimum ceramic output capacitor (X5R/X7R) for phase margin >45°. |
| 5 (GND) | Ground reference | Dedicated second ground pin improves PSRR and reduces ground bounce between input and output paths. |
| 6 (GND) | Ground reference | Third ground pin enhances thermal conduction to PCB copper; all three GND pins must be tied together on board. |
| 7 (GND) | Ground reference | See pins 2 and 5 - shared low-impedance ground net required for thermal and EMI performance. |
| 8 (BYP) | Bypass capacitor terminal | Connects to 10 nF ceramic capacitor to reduce internal reference noise; essential for achieving 40 µVRMS output noise. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-current blocking | Prevents backfeed from output to input during shutdown or input brownout - eliminates need for external blocking diode in battery backup paths. |
| Thermal foldback protection | Reduces output current linearly above 125°C junction temperature to prevent destructive thermal runaway in enclosed enclosures. |
| Low-noise operation | 40 µVRMS output noise with 10 nF BYP capacitor - suitable for ADC reference supplies and precision analog front-ends. |
| Stable with ceramic capacitors | Guaranteed stability with 3.3 µF X5R/X7R MLCC output cap - avoids costly tantalum or electrolytic alternatives and simplifies BOM. |
| Enable pin with internal pull-up | 1.2 MΩ internal pull-up enables default-on operation while allowing clean MCU-controlled sequencing without external resistor. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered glucose meter with integrated 12-bit SAR ADC and Bluetooth LE radio. IC Role / Device Role / Timing Role: Primary 3.0 V supply for ADC reference, sensor signal chain, and BLE SoC core domain. Use Value: Low 40 µVRMS noise preserves ADC ENOB; reverse-current blocking prevents battery drain when BLE radio powers down independently. | Use Scenario: DIN-rail mounted analog input module accepting 4–20 mA loop signals and powering isolated signal conditioning circuitry. IC Role / Device Role / Timing Role: Local 3.0 V rail for precision op-amps and sigma-delta ADC drivers in isolated field-side domain. Use Value: 350 mV dropout enables operation from 3.3 V isolated DC/DC with margin; thermal foldback protects against ambient + self-heating in sealed enclosures. |
| Smart Energy Meters | Automotive Body Control Modules |
Use Scenario: Revenue-grade electricity meter with metrology SoC, RTC, and optical communication interface. IC Role / Device Role / Timing Role: Dedicated 3.0 V supply for real-time clock and secure crypto co-processor. Use Value: ±2% output accuracy ensures RTC timing drift <1 ppm over temperature; enable pin supports firmware-controlled power gating during sleep modes. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting using 16-bit MCU and LIN transceiver. IC Role / Device Role / Timing Role: Secondary regulated rail for MCU I/O and LIN physical layer, derived from 5 V system bus. Use Value: 2.5–16 V input range tolerates load-dump transients up to 14 V; three GND pins minimize ground shift between digital and analog sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/TO | 250 mA rated, SOT-23-5 package, 170 mV dropout at 250 mA - higher current but lower thermal mass and no BYP pin. | Lacks bypass pin and multi-GND layout - unsuitable for ultra-low-noise ADC references requiring 40 µVRMS. | Select when board space is constrained and noise <100 µVRMS is acceptable; not drop-in due to different pin count and thermal design. |
| TPS76330QDBVRQ1 | Automotive-grade (-40°C to 125°C), 150 mA, 300 mV dropout, integrated thermal shutdown - no enable pin or BYP terminal. | Qualified to AEC-Q100 Grade 3; lacks enable control and low-noise BYP path - limits use in sequenced or precision analog systems. | Choose for automotive environments requiring qualification; requires redesign for enable sequencing and noise-sensitive loads. |
Compared with MCP1700-3002E/TO and TPS76330QDBVRQ1, the MIC5201-3.0BM uniquely combines reverse-current blocking, dedicated BYP pin for sub-50 µV noise, and triple-GND SOIC-8 layout - making it optimal for portable precision analog systems where board area and noise are traded for performance.
Availability
MIC5201-3.0BM is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and smart energy meters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MIC5201-3.0BM 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, and power management ICs for industrial, automotive, and consumer applications.
The MIC5201 family targets low-noise, reverse-blocking LDO regulation in space-constrained portable and industrial systems - emphasizing thermal robustness, precision output, and simplified external component count.
FAQ
What is the maximum input voltage rating for the MIC5201-3.0BM?
The MIC5201-3.0BM supports an absolute maximum input voltage of 20 V, with continuous operation specified from 2.5 V to 16 V. Exceeding 16 V requires external clamping; operation above 20 V risks permanent damage. The MIC5201-3.0BM's internal protection does not include overvoltage shutdown, so transient suppression must be implemented externally per application requirements.
Does the MIC5201-3.0BM require an external bypass capacitor on the BYP pin?
Yes, the MIC5201-3.0BM requires a 10 nF ceramic capacitor connected between the BYP pin and ground to achieve its specified 40 µVRMS output noise. Omitting this capacitor increases output noise to approximately 120 µVRMS. The MIC5201-3.0BM's internal reference circuit relies on this external capacitor for noise filtering - no internal bypass is provided.
Can the MIC5201-3.0BM be used with ceramic output capacitors?
Yes, the MIC5201-3.0BM is explicitly designed and tested for stability with ceramic output capacitors. A minimum of 3.3 µF X5R or X7R MLCC is required, placed within 5 mm of the OUT and GND pins. The MIC5201-3.0BM's compensation is optimized for low-ESR ceramics - using electrolytic or tantalum capacitors may cause oscillation or poor transient response.
How does the enable pin (EN) function on the MIC5201-3.0BM?
EN is an active-high logic input with an internal 1.2 MΩ pull-up resistor. Driving EN below 0.4 V disables the regulator; pulling it above 1.4 V enables regulation. The MIC5201-3.0BM enters low-quiescent state (<1 µA) when disabled. No external pull-up is needed unless level-shifting or open-drain drive is required.
Is the MIC5201-3.0BM pin-compatible with other members of the MIC5201 family?
No, the MIC5201-3.0BM is not pin-compatible with adjustable or other fixed-voltage variants like MIC5201-5.0BM due to differing internal feedback networks and BYP pin functionality. While all MIC5201 variants share the same SOIC-8 package and pinout numbering, output voltage selection and BYP usage differ - substituting without verifying schematic and layout changes will result in incorrect regulation or instability.
MIC5201-3.0BM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 26V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 400 µA
- Current - Supply (Max):
- 2 mA
- PSRR:
- 75dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MIC5201-3.0BM FAQ
1.How can I place an order for MIC5201-3.0BM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5201-3.0BM 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 MIC5201-3.0BM reliable?
The price and inventory of MIC5201-3.0BM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5201-3.0BM is usually 5 days.
3.What payment methods are accepted for MIC5201-3.0BM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5201-3.0BM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5201-3.0BM?
MIC5201-3.0BM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5201-3.0BM 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 MIC5201-3.0BM?
For technical support, including MIC5201-3.0BM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5201-3.0BM requirements.
6.How does Aetrix verify that MIC5201-3.0BM is sourced from the original manufacturer or authorized distributors?
All MIC5201-3.0BM 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 MIC5201-3.0BM meets industry standards.
7.What is the process for return or replacement of MIC5201-3.0BM?
All MIC5201-3.0BM units undergo pre-shipment inspection (PSI). If there is an issue with MIC5201-3.0BM, 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 MIC5201-3.0BM part is unused and in its original packaging.
Return procedure for MIC5201-3.0BM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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