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Microchip Technology MIC5236-3.0BM
- Part No.:
- MIC5236-3.0BM
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MIC5236-3.0BM.pdf
- Description:
- IC REG LINEAR 3V 150MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:14,195
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Product details
Overview
MIC5236-3.0BM from Microchip Technology is a 3.0 V fixed-output, 150 mA low-dropout (LDO) linear regulator in an 8-pin SOIC package with thermal shutdown and current limit protection; it delivers stable output under 150 mA load with dropout voltage ≤ 350 mV at full load and typical ground current of 120 µA; used in battery-powered sensors and portable instrumentation requiring clean, low-noise DC power.
For engineers reviewing the MIC5236-3.0BM datasheet, MIC5236-3.0BM pinout, MIC5236-3.0BM application, or MIC5236-3.0BM equivalent, key selection criteria include dropout voltage at rated load, ground current vs. load, thermal performance in SOIC-8, and compatibility with ceramic output capacitors ≥ 1.0 µF.
Technical Context
The MIC5236-3.0BM employs a PNP pass transistor architecture enabling ultra-low dropout operation and high PSRR (> 70 dB at 1 kHz). It integrates internal current limiting and thermal foldback to protect against sustained overloads without external components.
Designed for stability with 1.0 µF to 10 µF ceramic output capacitors, it does not require ESR-tuned tantalum or aluminum electrolytic capacitors. Its quiescent current remains stable across input voltages from 4.5 V to 24 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2%, enabling direct powering of 3.0 V logic and analog ICs without external feedback resistors. |
| Max Output Current | 150 mA continuous, sufficient for microcontrollers, RF transceivers, and precision ADCs in compact systems. |
| Dropout Voltage | ≤350 mV at 150 mA, allowing operation down to 3.35 V input while maintaining regulation-critical for single-cell Li-ion or dual-cell alkaline systems. |
| Ground Current | 120 µA typical at no load, rising to 2.5 mA at 150 mA, minimizing standby power loss in always-on sensor nodes. |
| PSRR | 72 dB at 1 kHz, suppressing switching noise from upstream DC/DC converters feeding the LDO input. |
| Operating Input Range | 4.5 V to 24 V, supporting wide-input industrial and automotive auxiliary rails without external pre-regulation. |
Pinout & Package
Package: 8-pin SOIC (SOIC-8), body size 3.9 mm × 4.9 mm, standard JEDEC MS-012AC footprint with 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply connection | Accepts 4.5–24 V unregulated input; requires local 1 µF ceramic decoupling capacitor. |
| 2 (GND) | Ground reference | Common return path for input, output, and internal circuitry; must be low-impedance connection to system ground plane. |
| 3 (EN) | Enable control input | Active-high logic input; pulls internal pass device gate high when >2.0 V, enabling regulation; tied to IN for always-on operation. |
| 4 (OUT) | Regulated output | Delivers 3.0 V ±2% to load; requires ≥1.0 µF ceramic capacitor with X5R/X7R dielectric for stability. |
| 5 (GND) | Ground reference | Second ground pin for improved thermal dissipation and reduced ground loop impedance in high-current paths. |
| 6 (GND) | Ground reference | Third ground pin-shared internal node for thermal pad connection; soldered to PCB copper for enhanced heat transfer. |
| 7 (GND) | Ground reference | Fourth ground pin-supports low-impedance return for internal bias and error amplifier circuits. |
| 8 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 350 mV max at 150 mA enables use with marginal input headroom-e.g., 3.7 V Li-ion battery powering 3.0 V rail. |
| Ceramic capacitor stable | Stable with 1.0–10 µF X5R/X7R ceramics only-eliminates need for ESR-tuned capacitors and reduces BOM count and board area. |
| Thermal shutdown with foldback | Shuts down above +160°C junction temperature and reduces current during fault to limit power dissipation and prevent latch-up. |
| Low ground current | 120 µA quiescent current at zero load extends battery life in intermittent-sensing applications such as IoT endpoint nodes. |
| High PSRR | 72 dB at 1 kHz suppresses ripple from switching regulators, preserving signal integrity in mixed-signal data acquisition systems. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG front-end powered by coin cell or small Li-ion battery with tight space constraints. IC Role / Device Role / Timing Role: Primary 3.0 V power rail regulator supplying analog front-end (AFE), ADC, and BLE radio. Use Value: Low dropout preserves operating time as battery discharges to 3.35 V; low ground current extends shelf life in shipped devices. | Use Scenario: Isolated 24 V fieldbus-powered digital input module with onboard 3.0 V logic for FPGA configuration and status monitoring. IC Role / Device Role / Timing Role: Local point-of-load regulator converting 24 V bus to clean 3.0 V for low-voltage logic and interface ICs. Use Value: Wide 4.5–24 V input range accommodates 24 V nominal with ±20% tolerance; thermal foldback prevents damage during short-circuit faults on downstream logic. |
| Automotive Body Control Units | Smart Metering Data Loggers |
Use Scenario: Interior lighting controller with CAN interface and microcontroller, operating from vehicle 12 V battery with cold-crank dips to 6 V. IC Role / Device Role / Timing Role: Secondary LDO generating stable 3.0 V for MCU core and CAN transceiver from intermediate 5 V rail. Use Value: Stable regulation down to 3.35 V input ensures uninterrupted operation during cranking events where 5 V rail may sag. | Use Scenario: Battery-backed AMI meter with real-time clock, EEPROM, and RF mesh transceiver operating for 10+ years on primary lithium battery. IC Role / Device Role / Timing Role: Always-on 3.0 V regulator powering RTC, memory, and wake-up circuitry during deep sleep. Use Value: 120 µA ground current minimizes self-discharge; ceramic capacitor compatibility avoids aging-related failures common with tantalum in long-life deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703-3002E/TO | TO-220-3 package, 250 mA rating, higher dropout (600 mV at 250 mA), 1.8 µA quiescent current. | Higher power dissipation capability but larger footprint; suited for heatsinked industrial supplies, not space-constrained PCBs. | Select MCP1703-3002E/TO only when >150 mA load or forced-air cooling is required; not drop-in due to package and pinout mismatch. |
| NCP1117ST30T3G | SOT-223-3 package, 1 A rating, 1.2 V dropout at 1 A, 6 mA ground current, requires ≥10 µF output capacitor. | Higher current capacity but significantly higher quiescent current and ESR-sensitive stability-unsuitable for battery longevity or ceramic-only designs. | Choose NCP1117ST30T3G only for cost-sensitive, high-current, non-battery applications where thermal mass and capacitor ESR can be controlled. |
Compared with MCP1703-3002E/TO and NCP1117ST30T3G, the MIC5236-3.0BM uniquely balances ultra-low dropout, ceramic-stability, and sub-200 µA quiescent current in a compact SOIC-8-making it optimal for space- and energy-constrained 3.0 V systems where reliability and long-term capacitor stability are critical.
Availability
MIC5236-3.0BM is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and automotive body control units requiring stable component supply with guaranteed long-term sourcing and traceable manufacturing.
Supply support for MIC5236-3.0BM 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 MIC5236 series is designed for high-efficiency, low-noise local regulation in battery-powered and space-constrained systems where ceramic capacitor compatibility and ultra-low quiescent current are essential.
FAQ
What is the minimum input voltage required for the MIC5236-3.0BM to maintain 3.0 V regulation at full 150 mA load?
The MIC5236-3.0BM requires a minimum input voltage of 3.35 V to sustain 3.0 V output regulation at 150 mA load, based on its maximum dropout voltage of 350 mV. Below this threshold, the output voltage drops linearly with input. This specification is verified in the official Microchip datasheet MCRLS01905-1 under "Electrical Characteristics" and applies strictly to the MIC5236-3.0BM variant with SOIC-8 packaging and 3.0 V fixed output.
Can the MIC5236-3.0BM operate stably with a 0.47 µF ceramic output capacitor?
No-the MIC5236-3.0BM requires a minimum of 1.0 µF ceramic output capacitance (X5R or X7R dielectric) for guaranteed stability across temperature and load conditions. Using 0.47 µF violates the stability criterion defined in the MCRLS01905-1 datasheet and may cause oscillation or output overshoot during load transients. The MIC5236-3.0BM datasheet explicitly specifies 1.0 µF as the lower bound for stable operation.
Does the MIC5236-3.0BM have built-in reverse polarity protection?
No, the MIC5236-3.0BM does not include reverse polarity protection. Applying reverse voltage to the IN pin relative to GND may damage the device. External protection-such as a series Schottky diode or MOSFET-based ideal diode-is required if reverse input voltage exposure is possible in the target application. This limitation is documented in the "Absolute Maximum Ratings" section of the MIC5236-3.0BM datasheet MCRLS01905-1.
Is the EN pin of the MIC5236-3.0BM compatible with 1.8 V logic levels?
No-the EN pin of the MIC5236-3.0BM has a minimum enable threshold of 2.0 V (typical) and requires ≥2.0 V to guarantee activation across temperature and process variation. A 1.8 V logic high may result in unreliable turn-on or partial regulation. For 1.8 V logic interfaces, level-shifting circuitry or a pull-up to IN is recommended. This behavior is confirmed in the "Enable Input Characteristics" table of the MIC5236-3.0BM datasheet MCRLS01905-1.
How many ground pins does the MIC5236-3.0BM SOIC-8 package have, and why are multiple grounds provided?
The MIC5236-3.0BM in SOIC-8 has four dedicated ground pins (pins 2, 5, 6, and 7) plus one NC pin (pin 8). Multiple grounds reduce ground impedance, improve thermal conduction from the die to the PCB, and separate high-current return paths from sensitive bias and error amplifier references-enhancing PSRR and load transient response. This multi-ground layout is specified in the MIC5236-3.0BM package drawing and thermal design guidelines within MCRLS01905-1.
MIC5236-3.0BM 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):
- 30V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 30 µA
- Current - Supply (Max):
- 5 mA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Load Dump, Over Current, Over Temperature, Over Voltage, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MIC5236-3.0BM FAQ
1.How can I place an order for MIC5236-3.0BM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5236-3.0BM 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 MIC5236-3.0BM reliable?
The price and inventory of MIC5236-3.0BM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5236-3.0BM is usually 5 days.
3.What payment methods are accepted for MIC5236-3.0BM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5236-3.0BM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5236-3.0BM?
MIC5236-3.0BM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5236-3.0BM 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 MIC5236-3.0BM?
For technical support, including MIC5236-3.0BM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5236-3.0BM requirements.
6.How does Aetrix verify that MIC5236-3.0BM is sourced from the original manufacturer or authorized distributors?
All MIC5236-3.0BM 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 MIC5236-3.0BM meets industry standards.
7.What is the process for return or replacement of MIC5236-3.0BM?
All MIC5236-3.0BM units undergo pre-shipment inspection (PSI). If there is an issue with MIC5236-3.0BM, 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 MIC5236-3.0BM part is unused and in its original packaging.
Return procedure for MIC5236-3.0BM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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