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Microchip Technology MCP1802T-6002I/OT
- Part No.:
- MCP1802T-6002I/OT
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MCP1802T-6002I/OT.pdf
- Description:
- IC REG LINEAR 6V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,064
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Product details
Overview
MCP1802T-6002I/OT from Microchip Technology is a 300 mA CMOS low-dropout (LDO) voltage regulator with 6.0 V fixed output, 200 mV typical dropout at 100 mA, 25 µA typical quiescent current, and SOT-23-5 package. It delivers stable power to microcontrollers and battery-powered sensors operating from 2.0 V to 10.0 V input sources.
For engineers reviewing the MCP1802T-6002I/OT datasheet, MCP1802T-6002I/OT pinout, MCP1802T-6002I/OT application, or MCP1802T-6002I/OT equivalent, key selection criteria include shutdown functionality, ±2% output accuracy over temperature, ceramic capacitor stability, and thermal performance in space-constrained portable designs.
Technical Context
The MCP1802T-6002I/OT uses a P-channel PMOS pass transistor architecture enabling ultra-low dropout and high PSRR (70 dB @ 10 kHz). Its internal bandgap reference and error amplifier provide precise regulation across –40°C to +85°C ambient range.
Shutdown control is implemented via a logic-level SHDN pin requiring external pull-up/pull-down; no internal bias resistor exists. Current limiting employs foldback protection, delivering ~50 mA short-circuit current and 380 mA typical trip threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 6.0 V ±2% (VR ≥ 1.45 V), ensuring compatibility with 6 V logic rails and analog subsystems |
| Max Output Current | 300 mA continuous, supporting mid-power MCU cores and sensor arrays without thermal derating in standard PCB layouts |
| Dropout Voltage | 200 mV typical @ 100 mA (3.1–6.0 V output range), enabling operation from single Li-Ion or four alkaline cells |
| Quiescent Current | 25 µA typical, minimizing battery drain in always-on smoke/CO₂ detectors and data loggers |
| PSRR | 70 dB typical @ 10 kHz, suppressing switching noise from adjacent DC-DC converters in mixed-signal systems |
| Operating Temp | –40°C to +85°C, validated for industrial and automotive cabin environments without derating |
| Thermal Resistance | θJA = 256°C/W (SOT-23-5 on 4-layer FR-4), enabling 162 mW max dissipation at +40°C ambient |
Pinout & Package
SOT-23-5 surface-mount package with 1.3 mm × 2.9 mm footprint, 0.95 mm height, and lead-free matte tin plating per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Unregulated Input Supply | Accepts 2.0–10.0 V; requires ≥0.1 µF local ceramic decoupling to maintain stability under load transients |
| 2 - GND | Regulator Ground Reference | Low-current return path (25 µA typical); must be tied directly to load and capacitor negatives to avoid regulation error |
| 3 - SHDN | Active-High Shutdown Control | Logic-high (≥1.6 V) enables output; logic-low (≤0.25 V) reduces quiescent current to 0.01 µA; no internal pull resistor |
| 4 - NC | No Connection | Internally unconnected; must remain floating or grounded per layout best practice-no routing or vias allowed |
| 5 - VOUT | Regulated 6.0 V Output | Delivers up to 300 mA; requires ≥1.0 µF ceramic output capacitor placed adjacent to pin for stability and PSRR optimization |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout Architecture | P-channel PMOS pass element enables 200 mV dropout at full 100 mA load, extending battery life in multi-cell systems |
| Ceramic Capacitor Stability | Stable with ≥1 µF X7R/X5R ceramics-eliminates need for bulkier tantalum or electrolytic capacitors in compact designs |
| High PSRR Performance | 70 dB rejection at 10 kHz allows clean 6.0 V supply in noisy environments with switch-mode power stages nearby |
| Shutdown Functionality | 0.01 µA shutdown current enables true system-level power gating for >1-year battery operation in alarm circuits |
| Overcurrent Protection | 380 mA typical current limit with foldback prevents thermal runaway during short-circuit events |
Applications
| Smart Battery Packs | Smoke Detectors |
|---|---|
Use Scenario: Power management in rechargeable Li-Ion battery packs with fuel gauging and protection ICs. IC Role / Device Role / Timing Role: Primary 6.0 V supply rail for pack monitor MCU and analog front-end circuitry. Use Value: 25 µA quiescent current minimizes self-discharge during storage; 6.0 V output matches common battery pack interface voltage requirements. | Use Scenario: Standby and alarm activation circuitry in residential smoke detection units. IC Role / Device Role / Timing Role: Regulated 6.0 V source for optical sensor biasing, buzzer driver, and microcontroller core. Use Value: Shutdown capability reduces standby current to <0.1 µA, enabling 10+ year battery life with standard 9 V alkaline cells. |
| CO₂ Detectors | Wireless Sensor Nodes |
Use Scenario: Portable indoor air quality monitors using NDIR CO₂ sensing modules. IC Role / Device Role / Timing Role: Precision 6.0 V reference and supply for IR emitter drivers and signal conditioning amplifiers. Use Value: ±2% output accuracy and 100 ppm/°C tempco ensure stable optical source intensity across environmental conditions. | Use Scenario: Ultra-low-power IoT endpoints transmitting sensor data via BLE or LoRaWAN. IC Role / Device Role / Timing Role: Main system regulator enabling MCU sleep modes and RF transceiver burst operation. Use Value: 200 mV dropout allows operation down to 6.2 V input-maximizing usable capacity from two-series Li-Ion cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1702T-6002E/MB | Same 6.0 V output, but 250 mA max current and 6 µA quiescent current; SOT-23-3 package (no SHDN pin) | Lacks shutdown control; suited for always-on, lower-current applications where board space is critical | Select when shutdown is unnecessary and quiescent current below 10 µA is mandatory |
| TPS7A2060PDBVR | 6.0 V output, 300 mA, 0.6 µA quiescent current, but 350 mV dropout @ 100 mA and no guaranteed 6 V option in production marking | Superior IQ for long-term storage, but higher dropout limits minimum input to 6.35 V | Select when ultra-low IQ dominates design priority and input voltage margin exceeds 350 mV |
Compared with MCP1702T-6002E/MB, the MCP1802T-6002I/OT adds shutdown control and 50 mA higher current capability at the cost of +19 µA quiescent current; versus TPS7A2060PDBVR, it trades 24.4 µA higher IQ for 150 mV lower dropout and guaranteed 6.0 V factory-trimmed output.
Availability
MCP1802T-6002I/OT is available at Aetrix Electronics and suitable for smart battery packs, smoke detectors, and wireless sensor nodes requiring stable component supply with extended lifecycle support.
Supply support for MCP1802T-6002I/OT 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 Inc. is a leading provider of microcontrollers, analog devices, and Flash-IP solutions, serving industrial, automotive, and consumer markets since 1989.
The MCP1802 product line delivers micropower LDO regulators optimized for battery longevity and space-constrained portable electronics, emphasizing low IQ, ceramic capacitor compatibility, and robust shutdown control.
FAQ
What is the maximum input voltage rating for the MCP1802T-6002I/OT?
The MCP1802T-6002I/OT has an absolute maximum input voltage of +12 V, but its operational input range is specified from 2.0 V to 10.0 V. Exceeding 10.0 V continuously may compromise reliability or violate safe operating area limits defined in the datasheet. Always maintain VIN ≤ 10.0 V for sustained operation.
Does the MCP1802T-6002I/OT require an external pull-up resistor on the SHDN pin?
Yes-the MCP1802T-6002I/OT SHDN pin has no internal pull-up or pull-down resistor. To prevent instability, SHDN must be actively driven to logic-high (≥1.6 V) for enable or logic-low (≤0.25 V) for shutdown. A 100 kΩ pull-up to VIN is commonly used in battery-powered designs to ensure default-enable behavior.
Can the MCP1802T-6002I/OT operate stably with a 0.47 µF ceramic output capacitor?
No-the MCP1802T-6002I/OT requires a minimum of 1.0 µF ceramic output capacitance (X7R or X5R) for small-signal stability across its full 0–300 mA load range. Using 0.47 µF risks oscillation or poor transient response; Microchip validates stability only with ≥1.0 µF per DS22053C.
What is the thermal resistance (θJA) of the MCP1802T-6002I/OT in its SOT-23-5 package?
The MCP1802T-6002I/OT has a junction-to-ambient thermal resistance (θJA) of 256°C/W when mounted on a standard 4-layer FR-4 PCB per EIA/JEDEC JESD51-7. This value assumes 1 in² copper pour on layer 2; actual θJA improves with larger copper areas or thermal vias.
Is the 6.0 V output of the MCP1802T-6002I/OT trimmed at the factory or adjustable?
The MCP1802T-6002I/OT features factory-trimmed 6.0 V output with ±2% accuracy over temperature and line/load conditions. It is not adjustable-no external feedback resistors are supported. The "6002" in the part number explicitly denotes the 6.0 V fixed output variant.
MCP1802T-6002I/OT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 100mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MCP1802T-6002I/OT FAQ
1.How can I place an order for MCP1802T-6002I/OT through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP1802T-6002I/OT 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 MCP1802T-6002I/OT reliable?
The price and inventory of MCP1802T-6002I/OT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP1802T-6002I/OT is usually 5 days.
3.What payment methods are accepted for MCP1802T-6002I/OT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP1802T-6002I/OT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP1802T-6002I/OT?
MCP1802T-6002I/OT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP1802T-6002I/OT 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 MCP1802T-6002I/OT?
For technical support, including MCP1802T-6002I/OT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP1802T-6002I/OT requirements.
6.How does Aetrix verify that MCP1802T-6002I/OT is sourced from the original manufacturer or authorized distributors?
All MCP1802T-6002I/OT 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 MCP1802T-6002I/OT meets industry standards.
7.What is the process for return or replacement of MCP1802T-6002I/OT?
All MCP1802T-6002I/OT units undergo pre-shipment inspection (PSI). If there is an issue with MCP1802T-6002I/OT, 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 MCP1802T-6002I/OT part is unused and in its original packaging.
Return procedure for MCP1802T-6002I/OT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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