MCP1824T-1802E/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
MCP1824T-1802E/OT is a fixed 1.8 V LDO linear voltage regulator from Microchip, offering 300 mA output current with only 200 mV typical dropout voltage. Housed in a compact SOT-23-5 package, it operates from 2.1 V to 6 V input. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1824T-1802E/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2928(MOQ 3)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1824T-1802E/OT?
- Fixed 1.8 V output with 200 mV typical dropout voltage at 300 mA — ideal for low-power CMOS supply rails
- Wide input range of 2.1 V to 6 V supports single-cell Li-Ion and 5 V USB bus designs
- SOT-23-5 package with only 5 pins reduces board area and simplifies layout for space-constrained applications
- Low quiescent current minimizes standby power loss in battery-operated portable devices
What is MCP1824T-1802E/OT used for?
MCP1824T-1802E/OT suits portable electronics that require a stable 1.8 V rail from a 3.3 V or 5 V bus, such as microcontroller I/O banks, SDIO interfaces, and low-power sensor nodes. Its minimal dropout of 200 mV makes it effective in battery-powered designs where preserving cell runtime is critical. The small SOT-23-5 footprint also fits tightly on wearable or IoT PCBs with limited real estate.
What are the specifications of MCP1824T-1802E/OT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| 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 | 2.1V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.011934% |
| Load Regulation-Max | 0.018% |
| 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 | 1.845V |
| Output Voltage1-Min | 1.755V |
| Output Voltage1-Nom | 1.8V |
| 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 |
Where can I find the MCP1824T-1802E/OT datasheet?
MCP1824T-1802E/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1824T-1802E/OT?
Compatible alternatives and drop-in replacements for MCP1824T-1802E/OT:
suggested
suggested
Frequently Asked Questions
What is the maximum output current MCP1824T-1802E/OT can supply, and how does dropout voltage change at full load?
MCP1824T-1802E/OT can deliver up to 300 mA continuously. At full load the typical dropout voltage is 200 mV, rising to a maximum of 320 mV, meaning the input rail must stay at least 2.12 V above ground to keep the output in regulation.
Which input voltage range does MCP1824T-1802E/OT support, and is it compatible with a single-cell Li-Ion battery?
The device accepts input voltages from 2.1 V minimum to 6 V maximum, covering the full discharge range of a single-cell Li-Ion battery (nominally 3.7 V, minimum ~3 V). Its absolute maximum input rating is 6.5 V, so a 5 V USB rail is also compatible without additional protection.
How does the SOT-23-5 package of MCP1824T-1802E/OT compare to larger LDO packages for a compact PCB design?
The SOT-23-5 footprint measures roughly 2.9 mm × 1.6 mm, significantly smaller than SOT-223 or TO-252 packages used on higher-power LDOs. This 5-pin package needs only an input capacitor, output capacitor, and bypass pin decoupling — a total BOM of 3 passives — enabling very dense placement next to 1.8 V loads on sub-25 mm² board areas.
When would MCP1824T-1802E/OT be preferred over an adjustable LDO for a 1.8 V microcontroller supply?
A fixed-output regulator like MCP1824T-1802E/OT eliminates the two resistors required for the feedback divider in adjustable LDOs, reducing cost, component count, and resistor-related output voltage error. For a dedicated 1.8 V rail serving STM32 or PIC32 I/O banks that never need a different voltage, the fixed variant is the simpler, lower-risk choice.
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