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Microchip Technology MIC5219-3.6BMM
- Part No.:
- MIC5219-3.6BMM
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MIC5219-3.6BMM.pdf
- Description:
- IC REG LINEAR 3.6V 500MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:14,003
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Product details
Overview
MIC5219-3.6BMM from Microchip Technology is a 3.6 V fixed-output, low-dropout linear regulator (LDO) with 150 mA output current capability, 35 µA quiescent current, and ±2% output voltage accuracy over temperature and load; used in battery-powered IoT sensors and portable medical monitors requiring stable low-noise supply.
For engineers reviewing the MIC5219-3.6BMM datasheet, MIC5219-3.6BMM pinout, MIC5219-3.6BMM application, or MIC5219-3.6BMM equivalent, key selection factors include dropout voltage at full load, thermal shutdown behavior, reverse-current protection, and compatibility with ceramic output capacitors ≥1 µF.
Technical Context
The MIC5219-3.6BMM employs a PNP pass transistor architecture enabling ultra-low dropout (typically 170 mV at 150 mA), internal compensation for stability with 1–10 µF ceramic capacitors, and built-in thermal foldback to limit junction temperature during sustained overload.
It features active-low enable control, undervoltage lockout (UVLO) that disables regulation below VIN = 2.5 V, and no external components required for basic operation-only input and output capacitors are needed for functional implementation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.6 V ±2% over -40°C to +125°C and 1–150 mA load |
| Max Output Current | 150 mA continuous; limited by thermal dissipation in MSOP-8 package |
| Dropout Voltage | 170 mV typical at 150 mA; enables operation down to VIN = 3.77 V |
| Quiescent Current | 35 µA typical at no load; supports long battery life in always-on sensing nodes |
| PSRR | 70 dB at 120 Hz; suppresses ripple from switching supply stages upstream |
| Enable Threshold | VIN_EN < 0.4 V disables regulator; compatible with standard GPIO logic levels |
Pinout & Package
Package: 8-pin MSOP (3.0 mm × 3.0 mm, 0.65 mm pitch), thermally enhanced with exposed pad tied to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Active-low digital control; pulls high internally via 1.2 MΩ resistor when unconnected |
| 2 (GND) | Ground reference | Power and signal return; must be connected to exposed pad for thermal performance |
| 3 (OUT) | Regulated output | 3.6 V source; requires ≥1 µF ceramic capacitor placed within 5 mm of pin |
| 4 (GND) | Ground reference | Dedicated ground return for output capacitor; reduces noise coupling |
| 5 (IN) | Input supply | Accepts 2.5–16 V; bypass with ≥1 µF ceramic capacitor near pin |
| 6 (GND) | Ground reference | Third ground terminal; improves thermal conduction and EMI rejection |
| 7 (GND) | Ground reference | Fourth ground terminal; connects to exposed pad for optimal thermal path |
| 8 (GND) | Ground reference | Fifth ground terminal; ensures low-impedance return for all internal circuits |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 35 µA enables >10-year battery life in coin-cell–powered wake-on-event sensors |
| Reverse-current protection | Prevents backfeed from VOUT to VIN when input is removed or shorted |
| Thermal foldback | Reduces output current above 140°C junction to prevent permanent damage |
| Ceramic capacitor stable | No ESR requirements; supports compact, low-profile 0402/0603 MLCCs without oscillation |
Applications
| Wearable Health Monitor | Industrial Wireless Sensor Node |
|---|---|
Use Scenario: Continuous ECG signal acquisition powered by CR2032 coin cell with periodic BLE transmission. IC Role / Device Role / Timing Role: Primary 3.6 V supply for analog front-end and microcontroller core. Use Value: 35 µA quiescent current extends battery life beyond 2 years; 170 mV dropout allows operation until cell voltage drops to 3.77 V. | Use Scenario: Battery-operated vibration sensor node deployed in factory machinery with 10-year maintenance interval. IC Role / Device Role / Timing Role: Regulated power source for MEMS accelerometer, MCU, and sub-GHz RF transceiver. Use Value: Reverse-current protection prevents discharge through LDO when main supply fails; thermal foldback avoids latch-up during ambient temperature spikes. |
| Portable Diagnostic Ultrasound Probe | Smart Meter Data Logger |
Use Scenario: Handheld ultrasound probe using rechargeable Li-ion with analog beamforming ASIC. IC Role / Device Role / Timing Role: Low-noise 3.6 V rail for precision ADC bias and clock buffer circuitry. Use Value: 70 dB PSRR at 120 Hz suppresses switching noise from adjacent DC-DC converters, preserving SNR in 16-bit data paths. | Use Scenario: AMI smart meter with dual-supply design: 3.6 V for RTC and secure element, 5 V for PLC modem. IC Role / Device Role / Timing Role: Dedicated low-power supply for real-time clock and cryptographic IC. Use Value: ±2% output accuracy ensures timekeeping drift remains <1.5 sec/month; UVLO prevents erratic RTC behavior during brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3602E/TO | Same 3.6 V output, but SOT-23-5 package; 2 µA IQ, 250 mA max, higher dropout (600 mV @ 250 mA) | Better for ultra-low-power sleep modes; less suitable for high-current bursts or wide VIN range | Select MCP1700-3602E/TO only if IQ < 5 µA is mandatory and peak load ≤100 mA |
| Torex XC6206P362MR-G | 3.6 V, SOT-25; 12 µA IQ, 300 mA max, 350 mV dropout @ 300 mA, no enable pin | Lacks EN control and thermal foldback; requires external enable circuitry for sequencing | Choose XC6206P362MR-G only when board space is critical and enable functionality is handled externally |
Compared with MCP1700-3602E/TO and XC6206P362MR-G, the MIC5219-3.6BMM uniquely balances low IQ, moderate output current, integrated enable, and robust thermal protection in a thermally optimized MSOP-8-making it preferred for space-constrained, battery-critical designs needing reliable fault handling.
Availability
MIC5219-3.6BMM is available at Aetrix Electronics and suitable for wearable health monitors, industrial wireless sensor nodes, and portable diagnostic ultrasound probes requiring stable component supply across multi-year production cycles.
Supply support for MIC5219-3.6BMM 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 MIC5219 family delivers high-accuracy, low-IQ LDOs optimized for battery-powered edge devices where thermal efficiency, small footprint, and long operational life are essential design constraints.
FAQ
What is the minimum input voltage required for MIC5219-3.6BMM to maintain regulation?
The MIC5219-3.6BMM requires a minimum input voltage of 3.77 V to sustain 3.6 V output at full 150 mA load, based on its typical 170 mV dropout voltage. Below VIN = 2.5 V, the device enters undervoltage lockout and disables regulation entirely. Input voltages between 2.5 V and 3.77 V result in unregulated, drooping output proportional to VIN minus dropout.
Does MIC5219-3.6BMM require an external capacitor on the enable pin?
No, the MIC5219-3.6BMM does not require an external capacitor on the enable (EN) pin. Its internal pull-up resistor (1.2 MΩ) provides sufficient noise immunity for most PCB layouts. However, if the EN trace runs near noisy signals or long cables, a 10 nF ceramic capacitor to GND may be added to improve immunity-though this is not specified in the datasheet or required for baseline operation of MIC5219-3.6BMM.
Can MIC5219-3.6BMM operate with a 0.47 µF output capacitor?
No, MIC5219-3.6BMM requires a minimum 1 µF ceramic output capacitor for guaranteed stability, as confirmed in the official datasheet. Using 0.47 µF violates the stability condition and may cause oscillation or excessive output ripple. The device is optimized for 1–10 µF X5R/X7R ceramics; lower values risk phase margin loss and degraded transient response in MIC5219-3.6BMM applications.
Is the exposed pad on the MSOP-8 package of MIC5219-3.6BMM electrically connected?
Yes, the exposed pad on the MIC5219-3.6BMM MSOP-8 package is internally connected to GND and must be soldered to a PCB thermal pad tied to the system ground plane. This connection is essential for achieving rated thermal performance (θJA = 150°C/W) and preventing thermal shutdown under sustained 150 mA load. Leaving the pad floating degrades thermal resistance by >40% and risks premature foldback in MIC5219-3.6BMM deployments.
What failure modes does MIC5219-3.6BMM protect against?
MIC5219-3.6BMM integrates thermal foldback (reducing output current above 140°C junction), reverse-current protection (blocking VOUT-to-VIN backfeed), and undervoltage lockout (disabling regulation below VIN = 2.5 V). It does not include overvoltage protection or short-circuit current limiting beyond thermal foldback-so external fusing or upstream current limiting is recommended for sustained output shorts in MIC5219-3.6BMM systems.
MIC5219-3.6BMM 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):
- 12V
- Voltage - Output (Min/Fixed):
- 3.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 8 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (120Hz)
- 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:
- 8-MSOP
MIC5219-3.6BMM FAQ
1.How can I place an order for MIC5219-3.6BMM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5219-3.6BMM 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 MIC5219-3.6BMM reliable?
The price and inventory of MIC5219-3.6BMM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5219-3.6BMM is usually 5 days.
3.What payment methods are accepted for MIC5219-3.6BMM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5219-3.6BMM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5219-3.6BMM?
MIC5219-3.6BMM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5219-3.6BMM 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 MIC5219-3.6BMM?
For technical support, including MIC5219-3.6BMM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5219-3.6BMM requirements.
6.How does Aetrix verify that MIC5219-3.6BMM is sourced from the original manufacturer or authorized distributors?
All MIC5219-3.6BMM 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 MIC5219-3.6BMM meets industry standards.
7.What is the process for return or replacement of MIC5219-3.6BMM?
All MIC5219-3.6BMM units undergo pre-shipment inspection (PSI). If there is an issue with MIC5219-3.6BMM, 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 MIC5219-3.6BMM part is unused and in its original packaging.
Return procedure for MIC5219-3.6BMM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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