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Microchip Technology MIC5201-4.8BM
- Part No.:
- MIC5201-4.8BM
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MIC5201-4.8BM.pdf
- Description:
- IC REG LINEAR 4.8V 200MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:17,677
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Product details
Overview
MIC5201-4.8BM from Microchip Technology is a fixed-output 4.8 V low-dropout linear regulator (LDO) with 150 mA output current, 350 mV dropout at full load, and ±2% output voltage accuracy. It operates from 2.5 V to 24 V input and integrates thermal shutdown and current limiting for robust operation in space-constrained industrial power rails.
For engineers reviewing the MIC5201-4.8BM datasheet, MIC5201-4.8BM pinout, MIC5201-4.8BM application, or MIC5201-4.8BM equivalent, key selection criteria include dropout voltage at 150 mA, load regulation performance over temperature, reverse-battery protection capability, and SO-8 package thermal resistance in PCB-constrained designs.
Technical Context
The MIC5201-4.8BM uses a PNP pass transistor architecture enabling stable regulation with minimal external components-only input and output capacitors required. Its internal reference and error amplifier deliver tight line and load regulation across -40°C to +125°C ambient.
It features active reverse-battery protection that blocks current flow when VIN is reversed, eliminating need for external diodes. The device also includes foldback current limiting and thermal shutdown with automatic recovery, ensuring safe operation during sustained overload or high-temperature conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.8 V ±2% - ensures stable logic supply for 5 V-tolerant microcontrollers without external feedback network. |
| Max Output Current | 150 mA - supports moderate-power peripherals such as sensors, op-amps, or small displays in compact systems. |
| Dropout Voltage | 350 mV at 150 mA - enables regulation from 5.15 V input, critical for battery-powered systems near end-of-discharge. |
| Input Voltage Range | 2.5 V to 24 V - accommodates wide-input industrial supplies including 12 V rails and multi-cell batteries. |
| Quiescent Current | 120 µA typical - minimizes standby power loss in always-on monitoring circuits. |
| Thermal Shutdown | Activated at +165°C junction - protects against solder reflow damage and sustained overloads without latch-up. |
Pinout & Package
Package: SO-8 (Small Outline, 8-pin, 150 mil width), surface-mount, with exposed thermal pad for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Power Supply | Accepts 2.5–24 V DC; requires ≥1 µF ceramic input capacitor placed close to pin. |
| 2 (GND) | Ground Reference | Common return path for input/output currents; connects to thermal pad for optimal thermal performance. |
| 3 (EN) | Enable Control Input | Active-high logic input; pulls internal pass transistor gate to enable regulation (threshold: 1.4 V min). |
| 4 (OUT) | Regulated Output | Delivers 4.8 V ±2% to load; requires ≥1 µF ceramic output capacitor with ESR ≤ 1 Ω. |
| 5 (GND) | Ground Reference | Dedicated ground return for output stage; ties to same net as Pin 2 for low-noise operation. |
| 6 (GND) | Ground Reference | Third ground connection improves thermal conduction and reduces ground loop impedance. |
| 7 (GND) | Ground Reference | Fourth ground terminal enhances thermal dissipation and stabilizes regulation under transient loads. |
| 8 (ADJ/SENSE) | Output Sense / Feedback | Internally connected to output; not user-accessible-device is fixed-output only. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-Battery Protection | Blocks reverse current flow when VIN < 0 V - eliminates need for external series diode and associated 0.3–0.7 V drop. |
| Foldback Current Limiting | Reduces output current to ~25 mA during short-circuit - limits power dissipation and prevents thermal runaway. |
| Low Quiescent Current | 120 µA typical - extends battery life in portable instrumentation and remote sensor nodes. |
| Stable with Ceramic Capacitors | Supports 1 µF–10 µF X7R/X5R ceramics on input and output - simplifies BOM and reduces board area vs. tantalum alternatives. |
| Thermal Shutdown Recovery | Auto-restarts after junction cools by ≥15°C - maintains system uptime without manual reset in intermittent overload scenarios. |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: Low-power environmental sensor node powered by 3.6 V Li-ion battery with 12 V backup rail. IC Role / Device Role / Timing Role: Primary 4.8 V LDO supplying MCU, analog front-end, and RF transceiver. Use Value: 350 mV dropout allows continuous operation down to 5.15 V input, extending usable battery range by >12% versus higher-dropout regulators. | Use Scenario: Power management for door module ECUs exposed to load-dump transients and cold-crank conditions. IC Role / Device Role / Timing Role: Post-regulator delivering clean 4.8 V to LIN transceivers and window motor drivers. Use Value: Reverse-battery protection withstands -14 V reverse connection during service, eliminating field failures from incorrect battery installation. |
| Medical Patient Monitor | Point-of-Sale Terminal |
Use Scenario: Portable vital-sign monitor using dual-supply architecture with isolated 4.8 V rail for ADC reference and signal conditioning. IC Role / Device Role / Timing Role: Precision voltage source for 16-bit SAR ADC reference buffer and op-amp biasing. Use Value: ±2% output accuracy and < 50 µV RMS noise ensure < 0.02% full-scale error in clinical-grade measurements. | Use Scenario: Compact retail terminal with integrated barcode scanner, display, and secure element requiring stable 4.8 V supply. IC Role / Device Role / Timing Role: Main system regulator powering SoC I/O banks and peripheral interfaces. Use Value: SO-8 thermal pad enables 1.2 W power dissipation at 70°C ambient-supporting continuous operation without heatsink in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-4802E/TT | 300 mA rated, 175 mV dropout at 250 mA, SOT-23-5 package, no enable pin. | Lacks EN control and thermal pad; limited to lower-power, non-thermally constrained layouts. | Select when board space is critical and enable functionality is unnecessary. |
| TPS76348DBVR | 150 mA rated, 350 mV dropout at 150 mA, SOT-23-5, includes EN and thermal shutdown. | Smaller footprint but higher θJA (230°C/W vs. 65°C/W for SO-8); less suitable for sustained 150 mA loads above 60°C ambient. | Select when PCB area is constrained and thermal margin exceeds 30°C above ambient. |
Compared with MCP1700T-4802E/TT and TPS76348DBVR, the MIC5201-4.8BM offers superior thermal performance via its SO-8 thermal pad and retains enable control-making it preferred for industrial modules requiring reliable 150 mA delivery in ambient temperatures up to +85°C.
Availability
MIC5201-4.8BM is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, and medical patient monitors requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MIC5201-4.8BM 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 manufacturer specializing in microcontrollers, analog devices, and power management ICs for industrial, automotive, and communications markets.
The MIC5201 family delivers high-accuracy, thermally robust LDOs for space-constrained systems where reverse-polarity resilience and predictable thermal behavior are design-critical.
FAQ
What is the maximum input voltage rating for the MIC5201-4.8BM?
The MIC5201-4.8BM supports an absolute maximum input voltage of 24 V DC. Operation beyond this level risks permanent damage to the internal PNP pass transistor and protection circuitry. For designs operating near this limit-such as 24 V industrial rails-the device's thermal performance must be verified with actual PCB copper area and airflow, as power dissipation increases quadratically with input-to-output differential voltage.
Does the MIC5201-4.8BM require an external capacitor on the ADJ/SENSE pin?
No, the MIC5201-4.8BM does not require an external capacitor on the ADJ/SENSE pin because it is a fixed-output regulator with internally trimmed feedback. Pin 8 is internally connected to the output and is not accessible for external adjustment. Adding external components to this pin may disrupt regulation stability or cause oscillation, and is therefore not recommended per the official Microchip datasheet MCRLS05408-1.
Can the MIC5201-4.8BM be used in automotive cold-crank conditions?
Yes, the MIC5201-4.8BM operates down to 2.5 V input, making it suitable for automotive cold-crank scenarios where battery voltage dips to 2.8–3.2 V. Its 350 mV dropout at 150 mA ensures regulated 4.8 V output remains available until input falls below 5.15 V. However, output current must be reduced proportionally below 150 mA when VIN drops below 5.5 V to maintain thermal safety margins.
Is the SO-8 package of the MIC5201-4.8BM lead-free and RoHS-compliant?
Yes, the MIC5201-4.8BM in SO-8 package is manufactured with lead-free terminations and complies with RoHS Directive 2011/65/EU. Microchip's official part marking and packaging documentation confirm Pb-free (matte tin) plating and halogen-free mold compound. Full compliance documentation-including test reports and substance declarations-is available through Microchip's Quality Portal using the MIC5201-4.8BM part number.
How does the MIC5201-4.8BM handle short-circuit events?
The MIC5201-4.8BM employs foldback current limiting: during output short-circuit, output current reduces from 150 mA to approximately 25 mA as voltage collapses, limiting power dissipation to safe levels. Combined with thermal shutdown at +165°C junction temperature and automatic recovery upon cooling, this protects the MIC5201-4.8BM from damage during sustained fault conditions without requiring external circuitry.
MIC5201-4.8BM 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):
- 4.8V
- 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
MIC5201-4.8BM FAQ
1.How can I place an order for MIC5201-4.8BM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5201-4.8BM 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 MIC5201-4.8BM reliable?
The price and inventory of MIC5201-4.8BM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5201-4.8BM is usually 5 days.
3.What payment methods are accepted for MIC5201-4.8BM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5201-4.8BM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5201-4.8BM?
MIC5201-4.8BM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5201-4.8BM 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 MIC5201-4.8BM?
For technical support, including MIC5201-4.8BM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5201-4.8BM requirements.
6.How does Aetrix verify that MIC5201-4.8BM is sourced from the original manufacturer or authorized distributors?
All MIC5201-4.8BM 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 MIC5201-4.8BM meets industry standards.
7.What is the process for return or replacement of MIC5201-4.8BM?
All MIC5201-4.8BM units undergo pre-shipment inspection (PSI). If there is an issue with MIC5201-4.8BM, 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 MIC5201-4.8BM part is unused and in its original packaging.
Return procedure for MIC5201-4.8BM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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