MCP1824T-2502E/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
The MCP1824T-2502E/OT is a 300 mA fixed 2.5 V LDO linear regulator with enable pin and only 0.2 V typical dropout voltage. It accepts inputs from 2.8825 V to 6 V, making it suitable for single-cell Li-ion and 3.3 V bus step-down applications. Packaged in SOT-23-5 for ultra-compact PCB layouts in portable and IoT devices.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1824T-2502E/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3021(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 300 mA output current with only 0.2 V typical dropout voltage, extending battery runtime in low-headroom designs
- Fixed 2.5 V output with tight regulation accuracy for precision analog and reference circuits
- Enable/shutdown pin for system-level power sequencing and sleep-mode current control
- Input voltage range 2.8825 V to 6 V covering single-cell Li-ion and USB 5 V power sources
- Tiny SOT-23-5 package with 5 pins enabling high-density power rails on space-constrained PCBs
Applications
The MCP1824T-2502E/OT powers analog front-ends, ADC reference circuits, and low-voltage logic in portable instruments where a clean, stable 2.5 V rail is required with minimal overhead from a 3.3 V or Li-ion supply. Its 300 mA capacity and 0.2 V dropout make it an efficient choice for always-on sensor nodes that must remain within tight power budgets. The enable pin also allows the host MCU to sequence power to peripherals, reducing total system standby current in IoT edge devices.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 1Week |
| YTEOL | 9 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.32V |
| Dropout Voltage1-Nom | 0.2V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.8825V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.013249375% |
| Load Regulation-Max | 0.025% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 2.5625V |
| Output Voltage1-Min | 2.4375V |
| Output Voltage1-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2.5% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the MCP1824T-2502E/OT and why does it matter for Li-ion battery-powered designs?
The MCP1824T-2502E/OT has a typical dropout voltage of 0.2 V and a maximum of 0.32 V at 300 mA, meaning it maintains regulation until the input falls to just 2.7 V. For a single-cell Li-ion battery that discharges from 4.2 V to about 3.0 V, this low dropout enables the 2.5 V output to stay in regulation through nearly the entire usable battery capacity.
How does the shutdown pin on the MCP1824T-2502E/OT help reduce system idle current in an IoT sensor node?
Pulling the enable pin low places the MCP1824T-2502E/OT into shutdown, reducing quiescent current to microamp levels and cutting power to any downstream peripherals. In an IoT sensor node that wakes every 30 seconds to take a reading, using the shutdown pin to gate the 2.5 V analog rail during the 29-second sleep interval can reduce average system current by tens of milliamps, directly extending battery life.
What input voltage range does the MCP1824T-2502E/OT accept and which supply rails is it compatible with?
The MCP1824T-2502E/OT operates from 2.8825 V to 6 V input, with an absolute maximum of 6.5 V. This range covers 3.3 V logic rails, 4.2 V to 3.0 V Li-ion cells, and 5 V USB supplies, giving designers a single regulator choice that works across the most common portable and industrial supply voltages without additional protection components.
For an ADC reference application requiring a stable 2.5 V, how much output current margin does the MCP1824T-2502E/OT provide?
ADC reference buffers and precision analog circuits typically draw less than 10 mA, leaving the MCP1824T-2502E/OT with more than 290 mA of unused headroom from its 300 mA rating. This margin ensures the 2.5 V output remains well within its tight regulation accuracy even when additional logic loads are connected to the same rail, preventing voltage droop that would degrade ADC measurement accuracy.
How compact is the SOT-23-5 package of the MCP1824T-2502E/OT and what alternative packages are available for higher-power needs?
The SOT-23-5 package measures approximately 2.9 mm x 1.6 mm, consuming under 5 mm² of PCB area, which is ideal for wearables and miniature sensor modules. For designs requiring more than 300 mA at 2.5 V, Microchip offers the MCP1827 in a 5-pin SOT-23 that delivers 1.5 A, and the MCP1826 in a TO-263 package rated for up to 1 A with enhanced thermal dissipation.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5600 | $0.56 |
| 21+ | $0.5535 | $11.62 |
| 25+ | $0.5250 | $13.13 |
| 100+ | $0.4300 | $43.00 |
| 250+ | $0.3030 | $75.75 |
| 500+ | $0.3021 | $151.05 |
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