My Inquiry
My Account
Microchip Technology MCP1701T-2502I/MB
- Part No.:
- MCP1701T-2502I/MB
- Manufacturer:
- Microchip Technology
- Package:
- TO-243AA
- Datasheet:
-
MCP1701T-2502I/MB.pdf
- Description:
- IC REG LINEAR 2.5V 125MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,476
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MCP1701T-2502I/MB from Microchip Technology is a 2.5V fixed-output, 250 mA CMOS low-dropout (LDO) linear voltage regulator in SOT-89-3 package, featuring 2.0 µA typical quiescent current, ±2% output voltage accuracy, and 400 mV typical dropout at 200 mA - optimized for lithium-ion, 9V alkaline, and multi-cell battery-powered smoke detectors and CO₂ sensors.
For engineers reviewing the MCP1701T-2502I/MB datasheet, MCP1701T-2502I/MB pinout, MCP1701T-2502I/MB application, or MCP1701T-2502I/MB equivalent, key selection criteria include ultra-low IQ for extended battery life, stable operation with only 1 µF output capacitance, thermal performance in SOT-89 (θJA = 52°C/W), and guaranteed ±2% regulation across –40°C to +85°C.
Technical Context
The MCP1701T-2502I/MB employs a P-channel MOSFET pass element enabling low dropout and minimal load-dependent quiescent current increase. Its internal voltage reference and error amplifier deliver tight regulation without requiring external compensation.
It achieves stability with 1 µF tantalum or aluminum-electrolytic output capacitors (ESR 0.1–5 Ω), supports input voltages up to 10 V, and integrates short-circuit protection with current limiting - all while maintaining ±100 ppm/°C temperature coefficient and 0.2%/V line regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±2% (max) - ensures reliable microcontroller core or sensor biasing within tolerance across temperature and load |
| Max Output Current | 200 mA @ VOUT = 2.5 V - sufficient for low-power MCU subsystems and analog sensor chains |
| Dropout Voltage | 400 mV (typ) @ 200 mA - enables operation down to VIN = 2.9 V, extending usable battery range in 3.0 V nominal systems |
| Quiescent Current | 2.0 µA (typ) - reduces standby power loss by >90% vs. standard LDOs, critical for multi-year battery life |
| Input Voltage Range | Up to 10.0 V - supports single/dual Li-ion, 9V alkaline, and 3×AA/AAA primary cell configurations |
| Thermal Resistance | θJA = 52°C/W (SOT-89 on 1 in² copper) - allows 116 mW max dissipation at TA = 55°C without exceeding TJ = 125°C |
| Operating Temperature | –40°C to +85°C - qualified for industrial and safety-critical environmental monitoring applications |
Pinout & Package
Package: 3-pin SOT-89 (JEDEC TO-243), with tab connected to GND for thermal and electrical grounding. Dimensions: 4.60 × 2.29 × 1.60 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground Terminal | Reference node for output regulation; carries only 2 µA bias current - low-noise grounding path required |
| 2 (VIN) | Unregulated Supply Input | Accepts up to 10 V input; requires 1 µF local ceramic/tantalum capacitor for stability and PSRR improvement |
| 3 (VOUT) | Regulated Voltage Output | Delivers 2.5 V ±2% to load; output capacitor must be placed adjacent to minimize ESR-induced instability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2.0 µA typ. - enables >10-year battery life in always-on smoke detector standby mode |
| Stable with minimal output capacitance | 1 µF tantalum/aluminum - eliminates need for expensive low-ESR ceramics in cost-sensitive safety devices |
| Short-circuit protection | Current-limited foldback - prevents thermal runaway during wiring faults or sensor shorts |
| Tight output voltage tolerance | ±2% over temp/load - ensures ADC reference accuracy and consistent logic-level compatibility |
| Low temperature drift | ±100 ppm/°C typ. - maintains regulation stability across automotive and outdoor environmental ranges |
Applications
| Smoke Detectors | CO₂ Detectors |
|---|---|
Use Scenario: Battery-powered residential or commercial smoke alarm with optical sensing and audible alert. IC Role / Device Role / Timing Role: Primary 2.5 V supply for microcontroller, photodiode amplifier, and buzzer driver. Use Value: 2.0 µA IQ extends 9V alkaline battery life beyond 5 years in standby; ±2% output ensures reliable ADC sampling of smoke chamber signal. |
Use Scenario: Portable NDIR-based carbon dioxide monitor using dual-wavelength IR detection. IC Role / Device Role / Timing Role: Precision 2.5 V rail for IR emitter bias, detector preamp, and 12-bit SAR ADC reference. Use Value: Low dropout (400 mV @ 200 mA) sustains operation until battery reaches 2.9 V; ±100 ppm/°C drift minimizes calibration drift across operating temperature. |
| Smart Battery Packs | Microcontroller Power |
Use Scenario: Rechargeable Li-ion pack with fuel gauge IC, protection circuit, and LED status indicators. IC Role / Device Role / Timing Role: Auxiliary 2.5 V supply for fuel gauge and SMBus interface logic. Use Value: Operates from 3.0–4.2 V cell stack with <650 mV dropout; 0.2%/V line regulation rejects ripple from charging circuits. |
Use Scenario: Low-power 8-bit PIC® or ARM® Cortex-M0+ MCU in portable medical sensor node. IC Role / Device Role / Timing Role: Core voltage regulator for CPU, flash, and peripherals during active and sleep modes. Use Value: 250 mA capability supports burst-mode RF transmission; 1 µF stability simplifies PCB layout in space-constrained wearables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/MB | Same 2.5 V output and SOT-89 package, but 1.6 µA IQ (lower) and 150 mA max output (reduced) | Optimized for sub-100 mA ultra-low-power sensor nodes; insufficient for 200 mA MCU+RF loads | Select when IQ < 1.8 µA is mandatory and peak load ≤150 mA |
| TPS78225DRVR | 2.5 V, ±2% accuracy, 150 nA IQ, but requires 2.2 µF ceramic output cap and has 150 mA limit | Better for energy-harvesting systems; incompatible with 1 µF tantalum and unsuitable for >150 mA loads | Choose only if nanoscale IQ dominates design and ceramic caps are acceptable |
Compared with MCP1701T-2502I/MB, MCP1700T-2502E/MB trades 50 mA output headroom for lower IQ, while TPS78225DRVR offers extreme IQ reduction at the cost of capacitor compatibility and current capability - making MCP1701T-2502I/MB the balanced choice for 200 mA battery-powered safety systems.
Availability
MCP1701T-2502I/MB is available at Aetrix Electronics and suitable for smoke detectors, CO₂ monitors, and smart battery packs requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature operation.
Supply support for MCP1701T-2502I/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 is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs, with ISO/TS-16949 and ISO 9001 certifications.
The MCP1701 family was designed specifically for micropower, high-accuracy LDO regulation in battery-critical applications - emphasizing ultra-low IQ, wide input range, and robustness in safety-relevant end equipment.
FAQ
What is the maximum input voltage rating for the MCP1701T-2502I/MB?
The MCP1701T-2502I/MB has an absolute maximum input voltage of +12 V, but its specified operating input voltage range is up to 10.0 V. Operation above 10 V is not guaranteed and may compromise reliability or regulation accuracy. For sustained use, VIN should remain ≤10 V, especially under high ambient temperature conditions where power dissipation increases.
Does the MCP1701T-2502I/MB require an external capacitor for stability?
Yes, the MCP1701T-2502I/MB requires a minimum 1 µF output capacitor (tantalum or aluminum-electrolytic, ESR 0.1–5 Ω) for guaranteed stability. An input capacitor of 1 µF is also recommended, particularly when source impedance exceeds 10 Ω. Ceramic capacitors may be used but must meet ESR and resonant frequency requirements per the datasheet.
What is the thermal performance of the MCP1701T-2502I/MB in its SOT-89 package?
The MCP1701T-2502I/MB in SOT-89 has a junction-to-ambient thermal resistance (θJA) of 52°C/W when mounted on 1 square inch of copper. At 200 mA load and 2.9 V input (0.4 V dropout), power dissipation is ~80 mW, resulting in a ~4.2°C junction rise above ambient - well within safe limits for continuous operation at +85°C ambient.
Can the MCP1701T-2502I/MB be used with a 1.8 V input supply?
No - the MCP1701T-2502I/MB cannot regulate 2.5 V output from a 1.8 V input due to its minimum dropout requirement. At 200 mA, dropout is 400 mV (typ), so minimum valid VIN is 2.9 V. Below that, output collapses and regulation is lost. For 1.8 V input, a buck-boost or charge-pump solution is required.
Is the MCP1701T-2502I/MB RoHS-compliant and lead-free?
Yes, the MCP1701T-2502I/MB is Pb-free and complies with RoHS Directive 2011/65/EU. The SOT-89 package uses matte tin (Sn) plating per JEDEC standards, and the outer packaging bears the Pb-free JEDEC designator. Full compliance documentation is available through Microchip's quality portal.
MCP1701T-2502I/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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.7V @ 120mA
- Current - Output:
- 125mA
- 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-2502I/MB FAQ
1.How can I place an order for MCP1701T-2502I/MB through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP1701T-2502I/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-2502I/MB reliable?
The price and inventory of MCP1701T-2502I/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-2502I/MB is usually 5 days.
3.What payment methods are accepted for MCP1701T-2502I/MB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP1701T-2502I/MB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP1701T-2502I/MB?
MCP1701T-2502I/MB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP1701T-2502I/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-2502I/MB?
For technical support, including MCP1701T-2502I/MB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP1701T-2502I/MB requirements.
6.How does Aetrix verify that MCP1701T-2502I/MB is sourced from the original manufacturer or authorized distributors?
All MCP1701T-2502I/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-2502I/MB meets industry standards.
7.What is the process for return or replacement of MCP1701T-2502I/MB?
All MCP1701T-2502I/MB units undergo pre-shipment inspection (PSI). If there is an issue with MCP1701T-2502I/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-2502I/MB part is unused and in its original packaging.
Return procedure for MCP1701T-2502I/MB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCP1701T-2502I/MB Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
