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Microchip Technology MCP1700T-2301E/TT
- Part No.:
- MCP1700T-2301E/TT
- Manufacturer:
- Microchip Technology
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MCP1700T-2301E/TT.pdf
- Description:
- IC REG LINEAR 2.3V 200MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,363
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Product details
Overview
MCP1700T-2301E/TT from Microchip Technology is a CMOS low-dropout (LDO) voltage regulator delivering 250 mA output current at 2.3 V input with 178 mV typical dropout (VOUT = 2.8 V), ±0.4% output voltage tolerance at +25°C, and 1.6 µA typical quiescent current. It operates across –40°C to +125°C and supports battery-powered microcontroller power rails in smoke detectors and smart battery packs.
For engineers reviewing the MCP1700T-2301E/TT datasheet, MCP1700T-2301E/TT pinout, MCP1700T-2301E/TT application, or MCP1700T-2301E/TT equivalent, key selection criteria include ultra-low IQ, stable operation with 1.0 µF ceramic output capacitance, AEC-Q100 qualification, thermal shutdown at 140°C, and SOT-23-3 package compatibility for space-constrained PCB layouts.
Technical Context
The MCP1700T-2301E/TT uses a P-channel MOSFET pass transistor controlled by an internal error amplifier referenced to a precision bandgap. Regulation is maintained via feedback from VOUT to GND, enabling stable output under load transients up to 250 mA (for VOUT ≥ 2.5 V) and line variations from 2.3 V to 6.0 V.
Protection circuitry includes overcurrent limiting that cycles the output during short-circuit conditions and thermal shutdown triggered at 140°C junction temperature, with automatic recovery at ~130°C. The device achieves 44 dB PSRR at 100 Hz and exhibits 3 µV/√Hz output noise at 1 kHz with 100 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.3 V nominal - fixed output; enables direct replacement of 2-cell alkaline or single Li-ion supply rails without external resistors. |
| Quiescent Current | 1.6 µA typical - minimizes standby power loss in battery-operated devices with multi-year shelf life requirements. |
| Dropout Voltage | 178 mV typical @ 250 mA (VOUT = 2.8 V) - sustains regulation down to 2.478 V input, critical for end-of-battery-life operation. |
| Output Tolerance | ±0.4% typical at +25°C - ensures accurate ADC reference or MCU core voltage without calibration overhead. |
| Operating Temp | –40°C to +125°C junction - validated for automotive cabin and industrial sensor environments per AEC-Q100 Grade 1. |
| Capacitor Stability | Stable with 1.0 µF ceramic output capacitor - eliminates need for larger, higher-ESR tantalum or electrolytic capacitors. |
| Thermal Shutdown | 140°C typical activation - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
SOT-23-3 package: compact 2.9 mm × 1.6 mm surface-mount footprint with gull-wing leads; thermal performance characterized at θJA = 212°C/W on 4-layer FR-4 board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Unregulated Input Supply | Connects to source of P-MOS pass transistor; requires low-impedance source (≤10 Ω) and ≥1 µF ceramic decoupling for stability. |
| 2 (GND) | Regulator Ground Reference | Reference node for output voltage regulation; carries only 1.6 µA bias current - must be tied directly to load return path to avoid ground bounce. |
| 3 (VOUT) | Regulated Output Voltage | Delivers up to 250 mA (≥2.5 V) or 200 mA (<2.5 V); place 1 µF ceramic capacitor within 2 mm of this pin for optimal transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Validated for automotive applications including cabin temperature sensors and body control modules requiring Grade 1 reliability. |
| Low Dropout Architecture | P-channel MOSFET pass element enables sub-200 mV dropout at full rated current - extends usable battery voltage range by >10%. |
| Ultra-Low Quiescent Current | 1.6 µA typical draw allows >10-year battery life in CO₂ detectors drawing 100 nA average system current. |
| Short-Circuit Protection | Current-limiting foldback with auto-restart prevents thermal runaway during accidental VOUT-to-GND shorts. |
| Stable with Ceramic Capacitors | No ESR requirement eliminates need for aging-prone tantalum or bulkier aluminum electrolytics - reduces BOM count and cost. |
Applications
| Smoke Detector Power | Smart Battery Pack Monitoring |
|---|---|
Use Scenario: Primary power regulation for optical chamber circuitry and MCU in UL-certified residential smoke alarms. IC Role / Device Role / Timing Role: Provides clean, low-noise 2.3 V rail to analog front-end and 8-bit microcontroller during 10-year battery life. Use Value: 1.6 µA IQ enables >10-year shelf life on two AA alkaline cells; ±0.4% output tolerance ensures consistent smoke threshold detection. |
Use Scenario: Voltage regulation for fuel gauge IC and protection circuitry inside lithium-ion battery packs for power tools. IC Role / Device Role / Timing Role: Supplies regulated 2.3 V to coulomb counter and cell-balancing controller during charge/discharge cycles. Use Value: AEC-Q100 qualification validates robustness against vibration and thermal cycling; 178 mV dropout preserves runtime as cell voltage drops to 2.5 V. |
| Industrial Sensor Node | Automotive Cabin Temperature Sensor |
Use Scenario: Power management for wireless LoRaWAN sensor nodes deployed in remote HVAC monitoring systems. IC Role / Device Role / Timing Role: Delivers stable 2.3 V to ultra-low-power MCU and digital temperature/humidity sensor during periodic wake-up bursts. Use Value: Stable operation with 1 µF ceramic capacitor simplifies layout in space-constrained enclosures; –40°C to +125°C rating covers outdoor deployment extremes. |
Use Scenario: Regulated supply for thermistor-based cabin temperature sensing circuit in automotive HVAC control modules. IC Role / Device Role / Timing Role: Powers analog signal conditioning and ADC interface in AEC-Q100-compliant control unit. Use Value: ±3% max output variation over temperature ensures <±0.5°C measurement accuracy; thermal shutdown prevents field failures during high-ambient operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6206P232MR | 2.3 V fixed output, 150 mA max, 2.0 µA IQ, SOT-23-3, no AEC-Q100 qualification | Limited to consumer-grade portable electronics; lacks automotive reliability validation and thermal shutdown hysteresis. | Select when cost sensitivity outweighs automotive qualification and 250 mA headroom is unnecessary. |
| ON Semiconductor NCP170ASN230T2G | 2.3 V fixed output, 250 mA, 1.5 µA IQ, SOT-23-3, AEC-Q100 Grade 1, but 250 mV typical dropout @ 250 mA | Higher dropout reduces usable battery range in 2-cell alkaline systems below 2.55 V input. | Prefer when lowest possible IQ is critical and input voltage margin exceeds 250 mV above VOUT. |
Compared with XC6206P232MR and NCP170ASN230T2G, the MCP1700T-2301E/TT uniquely combines AEC-Q100 qualification, 178 mV dropout, and 1.6 µA IQ in a single SOT-23-3 package - making it the only option qualified for automotive cabin sensors while sustaining regulation deeper into battery discharge.
Availability
MCP1700T-2301E/TT is available at Aetrix Electronics and suitable for smoke detector power, smart battery pack monitoring, and industrial sensor node applications requiring stable component supply across extended production lifecycles.
Supply support for MCP1700T-2301E/TT 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 consumer markets.
The MCP1700 series was designed specifically for ultra-low-power, high-accuracy voltage regulation in battery-critical applications - emphasizing quiescent current optimization, wide input range, and robust thermal protection.
FAQ
What is the maximum continuous output current for MCP1700T-2301E/TT?
The MCP1700T-2301E/TT delivers up to 250 mA continuous output current when regulating to 2.3 V, provided the input voltage remains ≥2.478 V (2.3 V + 178 mV dropout). At lower input voltages or elevated temperatures, current capability decreases due to thermal limits and dropout constraints - refer to Figure 2-12 in DS20001826F for load-dependent dropout curves.
Is MCP1700T-2301E/TT compatible with ceramic output capacitors?
Yes, the MCP1700T-2301E/TT is explicitly characterized for stability with 1.0 µF X7R ceramic output capacitors and imposes no minimum ESR requirement. This eliminates reliance on aging-prone tantalum or bulkier aluminum electrolytics - verified across –40°C to +125°C and documented in Section 5.2 of DS20001826F.
Does MCP1700T-2301E/TT include overtemperature protection?
Yes, the MCP1700T-2301E/TT incorporates thermal shutdown that activates at approximately 140°C junction temperature and recovers automatically near 130°C. This protection is implemented independently of load current and prevents permanent damage during sustained overload or inadequate PCB heat sinking - confirmed in Electrical Characteristics Table (DS20001826F, page 4).
What is the output voltage tolerance of MCP1700T-2301E/TT over temperature?
The MCP1700T-2301E/TT maintains ±0.4% typical output voltage tolerance at +25°C and ±3% maximum over the full –40°C to +125°C operating junction temperature range. This specification accounts for both initial accuracy and thermal drift, ensuring predictable performance in automotive and industrial environments without external trimming.
Can MCP1700T-2301E/TT be used as a precision voltage reference?
Yes, the MCP1700T-2301E/TT is specified for use as a low-quiescent-current voltage reference in microcontroller systems. Its ±0.4% initial accuracy, 50 ppm/°C temperature coefficient, and 44 dB PSRR at 100 Hz support high-fidelity ADC measurements - detailed in Application Section 6.4 and Electrical Characteristics (DS20001826F, pages 16 and 3).
MCP1700T-2301E/TT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 4 µA
- Current - Supply (Max):
- -
- PSRR:
- 44dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MCP1700T-2301E/TT FAQ
1.How can I place an order for MCP1700T-2301E/TT through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP1700T-2301E/TT 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 MCP1700T-2301E/TT reliable?
The price and inventory of MCP1700T-2301E/TT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP1700T-2301E/TT is usually 5 days.
3.What payment methods are accepted for MCP1700T-2301E/TT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP1700T-2301E/TT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP1700T-2301E/TT?
MCP1700T-2301E/TT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP1700T-2301E/TT 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 MCP1700T-2301E/TT?
For technical support, including MCP1700T-2301E/TT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP1700T-2301E/TT requirements.
6.How does Aetrix verify that MCP1700T-2301E/TT is sourced from the original manufacturer or authorized distributors?
All MCP1700T-2301E/TT 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 MCP1700T-2301E/TT meets industry standards.
7.What is the process for return or replacement of MCP1700T-2301E/TT?
All MCP1700T-2301E/TT units undergo pre-shipment inspection (PSI). If there is an issue with MCP1700T-2301E/TT, 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 MCP1700T-2301E/TT part is unused and in its original packaging.
Return procedure for MCP1700T-2301E/TT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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