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Microchip Technology MCP1701T-5002I/MB
- Part No.:
- MCP1701T-5002I/MB
- Manufacturer:
- Microchip Technology
- Package:
- TO-243AA
- Datasheet:
-
MCP1701T-5002I/MB.pdf
- Description:
- IC REG LINEAR 5V 250MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,357
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Product details
Overview
MCP1701T-5002I/MB from Microchip Technology is a fixed-output 5.0V, ±2% tolerance, 250 mA CMOS low-dropout linear regulator in SOT-89 package, featuring 2.0 µA typical quiescent current, 630 mV typical dropout at 200 mA, and operation up to 10 V input - designed for lithium-ion, 9V alkaline, and solar-powered battery systems requiring extended runtime and stable microcontroller power.
For engineers reviewing the MCP1701T-5002I/MB datasheet, MCP1701T-5002I/MB pinout, MCP1701T-5002I/MB application, or MCP1701T-5002I/MB equivalent, key selection criteria include ultra-low IQ, tight output voltage accuracy across temperature, minimal external capacitance (1 µF), short-circuit protection, and thermal performance in high-density portable designs.
Technical Context
The MCP1701T-5002I/MB employs a P-channel MOSFET pass element enabling low dropout and near-constant quiescent current independent of load. Its internal voltage reference and error amplifier deliver ±100 ppm/°C temperature drift and 0.2%/V line regulation, ensuring stability under varying input and load conditions.
It operates across –40°C to +85°C with no external components required beyond 1 µF input/output capacitors (tantalum, ceramic, or aluminum electrolytic), and integrates short-circuit protection without foldback - maintaining regulated output until thermal shutdown intervenes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% (max) - ensures reliable logic-level compatibility with 5V microcontrollers and peripherals |
| Max Output Current | 250 mA @ VOUT = 5.0 V - supports moderate-power sensors, RF modules, and mixed-signal ICs |
| Dropout Voltage | 630 mV (typ) @ 200 mA - enables operation down to VIN = 5.63 V, extending usable battery range |
| Quiescent Current | 2.0 µA (typ) - minimizes standby drain in battery-backed systems like smoke detectors |
| Input Voltage Range | Up to 10.0 V - accommodates two-cell Li-ion (8.4 V max), 9V alkaline, or three-cell NiMH |
| Line Regulation | 0.2%/V (typ) - maintains output stability despite battery voltage sag during discharge |
| Temp Coefficient | ±100 ppm/°C (typ) - limits output drift to ±5 mV over full –40°C to +85°C range |
Pinout & Package
Package: 3-pin SOT-89 (JEDEC TO-243), thermally enhanced plastic package with 1.0 mm thick tab for PCB copper heatsinking; θJA ≈ 52°C/W when mounted on 1 in² copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Tab) | Ground (GND) | Reference node for regulation; carries only 2 µA bias current - must connect directly to low-impedance ground plane |
| 2 | VIN | Unregulated input supply; requires 1 µF capacitor placed adjacent to pin to suppress source impedance-induced instability |
| 3 | VOUT | Regulated 5.0V output; supplies load current up to 250 mA; output capacitor must be placed within 2 mm for transient response |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2.0 µA typ - enables >10-year battery life in always-on CO₂ detectors with 2000 mAh cells |
| Stable with 1 µF output cap | Compatible with low-ESR tantalum, ceramic, or aluminum electrolytic - eliminates need for costly high-precision caps |
| Short-circuit protection | Current-limiting without foldback - sustains regulated output during brief faults, avoiding system brownouts |
| Low temperature drift | ±100 ppm/°C - ensures <±5 mV output shift across industrial temperature range, critical for precision analog front-ends |
| High accuracy output | ±2% max over temp/load - meets USB peripheral and sensor interface voltage compliance without post-regulation trimming |
Applications
| Battery-Powered Smoke Detectors | Smart Battery Packs |
|---|---|
Use Scenario: Standby monitoring and alarm activation in residential smoke detectors powered by 9V alkaline batteries. IC Role / Device Role / Timing Role: Primary 5V power rail regulator for MCU, sensor interface, and audible alarm driver. Use Value: 2.0 µA quiescent current extends battery life beyond 10 years; ±2% output ensures consistent buzzer tone and ADC reference accuracy. | Use Scenario: Power management in multi-cell Li-ion battery packs with fuel gauging and protection circuitry. IC Role / Device Role / Timing Role: Supplies stable 5V to embedded fuel gauge IC and SMBus communication interface. Use Value: 630 mV dropout allows operation down to 5.63 V input, maximizing usable cell voltage range before cutoff. |
| Solar-Powered Environmental Sensors | Microcontroller Power for Portable PDAs |
Use Scenario: Continuous data logging in remote solar-charged environmental nodes measuring temperature, humidity, and air quality. IC Role / Device Role / Timing Role: Regulates variable solar panel output (6–10 V) to clean 5V for MCU, radio, and sensor biasing. Use Value: 0.2%/V line regulation maintains 5V accuracy despite wide PV voltage swings; 1 µF capacitor support simplifies outdoor-rated PCB design. | Use Scenario: Main power supply for ARM-based PDAs using 5V peripherals including SD card, display backlight, and USB OTG. IC Role / Device Role / Timing Role: Delivers 250 mA peak current to processor core and I/O rails during burst operations. Use Value: SOT-89 thermal resistance (52°C/W) enables sustained 200 mA output without heatsink in compact handheld 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-5002E/MB | Same 5.0V/±2% spec but 1.6 µA IQ (vs. 2.0 µA); rated for –40°C to +125°C (vs. +85°C) | Targeted at automotive under-hood use; higher temp rating adds cost and may exceed requirement for consumer portables | Select MCP1700T-5002E/MB only if extended temperature operation is mandatory; otherwise MCP1701T-5002I/MB offers optimal cost/performance for industrial and consumer battery systems |
| TPS76350DBVR | 5.0V/±3% output, 85 µA IQ, 350 mV dropout @ 150 mA; SOT-23-5 package with enable pin | Includes active-high EN pin and higher IQ - suited for systems requiring dynamic power gating, not ultra-low standby | Choose TPS76350DBVR when system-level power sequencing or enable control is needed; avoid for long-life battery applications due to 42× higher quiescent current |
Compared with MCP1700T-5002E/MB, the MCP1701T-5002I/MB trades 400 ppm/°C wider temp coefficient for lower cost and sufficient thermal margin in non-automotive environments; versus TPS76350DBVR, it delivers 42× lower IQ and tighter voltage accuracy at the expense of enable functionality - making it superior for always-on, battery-constrained designs.
Availability
MCP1701T-5002I/MB is available at Aetrix Electronics and suitable for battery-powered smoke detectors, solar-powered instrumentation, and microcontroller power applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MCP1701T-5002I/MB 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, FPGA, and connectivity solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The MCP1701 family was engineered specifically for ultra-low-power, high-accuracy linear regulation in space- and energy-constrained battery systems - emphasizing micropower operation, minimal external components, and robust thermal behavior in small-outline packages.
FAQ
What is the maximum input voltage rating for the MCP1701T-5002I/MB?
The MCP1701T-5002I/MB has an absolute maximum input voltage of +12 V, but its specified operating input voltage range is up to 10.0 V. Operation beyond 10 V is not guaranteed and risks permanent damage per Absolute Maximum Ratings. For reliable 5.0 V regulation, VIN should remain between 5.63 V (to maintain dropout margin) and 10.0 V.
Does the MCP1701T-5002I/MB require an enable pin to operate?
No, the MCP1701T-5002I/MB is a fixed-output, always-on LDO with no enable (EN) or shutdown pin. It begins regulating as soon as VIN exceeds VOUT + dropout voltage (~5.63 V). This simplifies design for applications where continuous power is required, such as smoke detector standby circuits - eliminating external control logic needed for parts like the TPS76350DBVR.
Can ceramic capacitors be used with the MCP1701T-5002I/MB?
Yes, ceramic capacitors are fully supported for both input and output. The MCP1701T-5002I/MB is stable with 1 µF ceramic (X5R/X7R), tantalum, or aluminum electrolytic capacitors. Ceramic types offer lower ESR and better high-frequency PSRR, improving noise rejection in sensitive analog or RF subsystems powered by the MCP1701T-5002I/MB.
What is the thermal resistance (θJA) of the MCP1701T-5002I/MB in its SOT-89 package?
The MCP1701T-5002I/MB in the SOT-89 (MB) package has a typical junction-to-ambient thermal resistance (θJA) of 52°C/W when mounted on 1 square inch of 2-oz copper. This value assumes standard PCB layout practices; actual θJA will increase with smaller copper area or lack of thermal vias - requiring derating of maximum output current in confined thermal environments.
How does the MCP1701T-5002I/MB handle short-circuit conditions?
The MCP1701T-5002I/MB incorporates internal short-circuit protection that limits output current to approximately 500 mA peak (per Absolute Maximum Ratings) without foldback. During sustained fault, power dissipation raises junction temperature until thermal shutdown activates - protecting the device. Recovery is automatic once fault clears and temperature falls below threshold, ensuring robustness in field-deployed battery systems.
MCP1701T-5002I/MB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.63V @ 200mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 3 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Short Circuit
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
MCP1701T-5002I/MB FAQ
1.How can I place an order for MCP1701T-5002I/MB through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP1701T-5002I/MB 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 MCP1701T-5002I/MB reliable?
The price and inventory of MCP1701T-5002I/MB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP1701T-5002I/MB is usually 5 days.
3.What payment methods are accepted for MCP1701T-5002I/MB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP1701T-5002I/MB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP1701T-5002I/MB?
MCP1701T-5002I/MB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP1701T-5002I/MB 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 MCP1701T-5002I/MB?
For technical support, including MCP1701T-5002I/MB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP1701T-5002I/MB requirements.
6.How does Aetrix verify that MCP1701T-5002I/MB is sourced from the original manufacturer or authorized distributors?
All MCP1701T-5002I/MB 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 MCP1701T-5002I/MB meets industry standards.
7.What is the process for return or replacement of MCP1701T-5002I/MB?
All MCP1701T-5002I/MB units undergo pre-shipment inspection (PSI). If there is an issue with MCP1701T-5002I/MB, 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 MCP1701T-5002I/MB part is unused and in its original packaging.
Return procedure for MCP1701T-5002I/MB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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