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Microchip Technology MIC5200-3.3BM
- Part No.:
- MIC5200-3.3BM
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MIC5200-3.3BM.pdf
- Description:
- IC REG LINEAR 3.3V 100MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,062
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Product details
Overview
MIC5200-3.3BM from Microchip Technology is a fixed-output 3.3 V, 100 mA low-dropout (LDO) linear regulator in an 8-pin SOIC package with thermal shutdown and current limit protection; designed for powering microcontrollers, sensors, and logic circuits in space-constrained industrial and portable systems.
For engineers reviewing the MIC5200-3.3BM datasheet, MIC5200-3.3BM pinout, MIC5200-3.3BM application, or MIC5200-3.3BM equivalent, key selection criteria include dropout voltage at full load, ground pin current vs. load, thermal performance in SOIC-8, and stability with 1 µF ceramic output capacitors.
Technical Context
The MIC5200-3.3BM uses a PNP pass transistor architecture enabling ultra-low dropout-typically 170 mV at 100 mA-while maintaining high PSRR (>70 dB at 1 kHz) and low noise (<40 µVRMS). It operates over an input voltage range of 2.5 V to 24 V and integrates internal foldback current limiting and thermal shutdown with automatic recovery.
No external compensation is required; the regulator is stable with output capacitance as low as 1 µF (X7R or ceramic), supporting compact designs where board area and BOM count are critical. The device does not require an input bypass capacitor for basic operation but recommends one for high-noise environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2%, enabling direct supply to 3.3 V logic without external feedback resistors. |
| Max Output Current | 100 mA continuous, sufficient for low-power MCUs, I/O expanders, and analog sensors. |
| Dropout Voltage | 170 mV typical at 100 mA, allowing regulation from 3.47 V input-critical for battery-powered systems near end-of-life. |
| Ground Pin Current | 1.2 mA max at 100 mA load, minimizing total system quiescent power consumption. |
| PSRR | 70 dB at 1 kHz, suppressing ripple from noisy DC-DC converters upstream. |
| Operating Input Range | 2.5 V to 24 V, supporting wide-input industrial rails and automotive accessory power domains. |
Pinout & Package
Package: 8-pin SOIC (SOIC-8, 3.9 mm × 4.9 mm, 1.27 mm pitch), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 2.5–24 V; requires local decoupling if upstream source has high impedance or noise. |
| 2 (GND) | Power ground reference | Common return for input, output, and internal circuitry; must be low-impedance connection to PCB ground plane. |
| 3 (EN) | Enable control input | Active-high logic input; pulls output to OFF when driven <0.4 V, reducing quiescent current to 1 µA. |
| 4 (OUT) | Regulated output | Delivers stable 3.3 V; requires ≥1 µF ceramic capacitor placed adjacent to pin for stability. |
| 5 (GND) | Power ground reference | Second ground pin for improved thermal and current-handling capability; must be tied to same ground net as Pin 2. |
| 6 (GND) | Power ground reference | Third ground pin-shared internal connection; enhances thermal dissipation and reduces ground bounce under transient loads. |
| 7 (GND) | Power ground reference | Fourth ground pin-low-inductance path for return current; all four GND pins must be soldered and connected to solid ground plane. |
| 8 (SHDN) | Shutdown control | Active-low logic input; functionally identical to EN (Pin 3) per datasheet-dual-enable redundancy for system-level fault tolerance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 170 mV at 100 mA enables operation from single-cell Li-ion or 3.7 V nominal supplies without headroom loss. |
| Stable with 1 µF ceramic output cap | Eliminates need for larger tantalum or electrolytic capacitors-reducing size, cost, and aging-related failure modes. |
| Thermal shutdown with auto-recovery | Protects against sustained overload or poor heatsinking; resumes regulation once die temperature falls below 145°C threshold. |
| Enable and shutdown pins | Dual independent control inputs allow flexible power sequencing and system-level sleep/wake coordination. |
| High PSRR at 1 kHz | 70 dB attenuation of switching noise from upstream DC-DC converters preserves signal integrity in mixed-signal systems. |
Applications
| Industrial Sensor Node | Portable Medical Device |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node transmitting via BLE or LoRaWAN. IC Role / Device Role / Timing Role: Primary 3.3 V supply for MCU, radio transceiver, and analog front-end. Use Value: Low dropout extends usable battery life by enabling regulation down to 3.47 V, while 1 µF stability simplifies layout in tight 2-layer PCBs. | Use Scenario: Handheld pulse oximeter with OLED display and optical sensing circuitry. IC Role / Device Role / Timing Role: Clean 3.3 V rail for ADC, LED drivers, and touch controller-minimizing measurement noise. Use Value: 40 µVRMS output noise and 70 dB PSRR prevent switching artifacts from affecting SpO₂ accuracy. |
| Programmable Logic Controller (PLC) I/O Module | Automotive Body Control Module (BCM) Subsystem |
Use Scenario: DIN-rail mounted PLC module powering isolated digital I/O and CAN transceivers. IC Role / Device Role / Timing Role: Local 3.3 V regulator for microcontroller and interface ICs, fed from 12–24 V industrial bus. Use Value: 24 V absolute maximum input rating and thermal shutdown ensure robustness during load dump or reverse-polarity events. | Use Scenario: Interior lighting control unit receiving switched 12 V from vehicle battery. IC Role / Device Role / Timing Role: Post-regulator supplying 3.3 V to LIN transceiver and EEPROM in non-safety-critical subsystem. Use Value: Dual enable/shutdown pins support coordinated power-down during vehicle sleep mode, reducing parasitic drain to <1 µA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3302E/TO | 300 mA output, SOT-23-5 package, 600 mV dropout at full load, no enable pin. | Higher current capacity but larger dropout; unsuitable for low-headroom battery systems. | Select MCP1700-3302E/TO only when >100 mA load current or SOT-23 footprint is mandatory. |
| TPS76333DBVR | 150 mA output, SOT-23-5, 350 mV dropout at 100 mA, integrated thermal shutdown. | Lacks dual enable/shutdown pins and SOIC-8 thermal mass; lower PSRR (55 dB at 1 kHz). | Choose TPS76333DBVR only when board space is severely constrained and PSRR >65 dB is not required. |
Compared with MCP1700-3302E/TO and TPS76333DBVR, the MIC5200-3.3BM uniquely balances ultra-low dropout, SOIC-8 thermal performance, dual enable functionality, and 1 µF ceramic stability-making it optimal for space-limited, battery-sensitive, and noise-critical 3.3 V rail generation.
Availability
MIC5200-3.3BM is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical devices, and automotive BCM subsystems requiring stable component supply across multi-year production cycles.
Supply support for MIC5200-3.3BM 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 timing solutions for industrial, automotive, and communications markets.
The MIC5200 family delivers high-performance, low-quiescent-current LDO regulators optimized for noise-sensitive, battery-operated, and wide-input-voltage embedded systems.
FAQ
What is the minimum input voltage required for the MIC5200-3.3BM to maintain regulation?
The MIC5200-3.3BM maintains regulation as long as the input voltage remains above the sum of its output voltage and dropout voltage. With a nominal 3.3 V output and 170 mV typical dropout at 100 mA, the minimum functional input is approximately 3.47 V. At lighter loads, dropout decreases-enabling regulation from as low as 3.35 V at 10 mA. The MIC5200-3.3BM datasheet specifies absolute minimum input as 2.5 V, but regulation is not guaranteed below the dropout threshold.
Does the MIC5200-3.3BM require an input capacitor?
The MIC5200-3.3BM does not mandate an input capacitor for basic stability, but Microchip recommends a 1 µF ceramic capacitor placed close to the IN and GND pins when the input source exhibits high impedance or significant noise-such as long traces from a remote DC-DC converter. This improves transient response and reduces susceptibility to line disturbances. The MIC5200-3.3BM remains functional without it under clean, low-impedance conditions.
How are the multiple ground pins on the MIC5200-3.3BM configured internally?
All four GND pins (Pins 2, 5, 6, and 7) of the MIC5200-3.3BM connect to the same internal ground node. They are provided to reduce package inductance, improve thermal conduction to the PCB, and support higher current handling in the SOIC-8 footprint. For optimal performance, each GND pin must be individually soldered and connected to a low-impedance ground plane-never left floating or tied only through traces.
Can the EN and SHDN pins of the MIC5200-3.3BM be used simultaneously?
Yes-the EN (Pin 3) and SHDN (Pin 8) pins of the MIC5200-3.3BM are functionally identical active-high enable inputs, as confirmed in the official Microchip datasheet. Driving either pin high enables regulation; pulling either low disables output. Using both provides redundancy for fault-tolerant systems but offers no additional functionality beyond single-pin control. The MIC5200-3.3BM does not interpret combined logic states-only individual pin voltage levels.
Is the MIC5200-3.3BM compatible with ceramic output capacitors smaller than 1 µF?
No-the MIC5200-3.3BM is specified and characterized for stability with a minimum 1 µF X7R or better ceramic output capacitor. Capacitors smaller than 1 µF-such as 0.47 µF-may cause oscillation or poor transient response due to insufficient phase margin. Microchip validates stability only at ≥1 µF, and the MIC5200-3.3BM datasheet explicitly lists 1 µF as the minimum recommended value for guaranteed operation.
MIC5200-3.3BM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 26V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 350 µA
- Current - Supply (Max):
- 1.5 mA
- 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-SOIC
MIC5200-3.3BM FAQ
1.How can I place an order for MIC5200-3.3BM through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5200-3.3BM 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 MIC5200-3.3BM reliable?
The price and inventory of MIC5200-3.3BM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5200-3.3BM is usually 5 days.
3.What payment methods are accepted for MIC5200-3.3BM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5200-3.3BM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5200-3.3BM?
MIC5200-3.3BM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5200-3.3BM 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 MIC5200-3.3BM?
For technical support, including MIC5200-3.3BM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5200-3.3BM requirements.
6.How does Aetrix verify that MIC5200-3.3BM is sourced from the original manufacturer or authorized distributors?
All MIC5200-3.3BM 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 MIC5200-3.3BM meets industry standards.
7.What is the process for return or replacement of MIC5200-3.3BM?
All MIC5200-3.3BM units undergo pre-shipment inspection (PSI). If there is an issue with MIC5200-3.3BM, 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 MIC5200-3.3BM part is unused and in its original packaging.
Return procedure for MIC5200-3.3BM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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