MCP1810T-33I/TT Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
The MCP1810T-33I/TT is a fixed 3.3 V low-dropout (LDO) voltage regulator from Microchip in a compact 3-pin SOT-23 package. It accepts an input voltage range of 4.1 V to 5.5 V and features a maximum dropout voltage of only 0.38 V, making it ideal for battery-powered and USB-supplied portable designs. Available in lead-free RoHS e3 tape-and-reel packaging with worldwide distribution.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- MCP1810T-33I/TT Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3 V regulated output with a maximum 0.38 V dropout voltage for efficient operation from 4.1 V to 5.5 V input sources
- Ultra-compact 3-pin SOT-23 package minimizing PCB footprint in space-constrained portable and wearable designs
- Wide input voltage range up to 5.5 V (absolute max 6 V) and lead-free RoHS e3 compliant construction
Applications
The MCP1810T-33I/TT is well suited for generating a stable 3.3 V rail from USB 5 V or single-cell lithium battery inputs in wearable devices, IoT sensors, and portable instruments. Its tiny SOT-23 footprint and low 0.38 V dropout voltage maximize efficiency and board density, making it a direct drop-in regulator for microcontroller supply rails in battery-operated consumer and industrial applications.
Specifications
| Manufacturer Package Code | SOT-23-3 |
| Date Of Intro | 2018-01-04 |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.38V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 4.1V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Load Regulation-Max | 0.099% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 85°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.15A |
| Output Voltage1-Max | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP1810T-33I/TT:
suggested
Frequently Asked Questions
What output voltage and input range does the MCP1810T-33I/TT LDO support?
The MCP1810T-33I/TT provides a fixed 3.3 V regulated output and accepts an input voltage from 4.1 V to 5.5 V, with an absolute maximum of 6 V. The maximum dropout voltage of 0.38 V means the input must stay at least 3.68 V to maintain regulation, making it suitable for USB 5 V-powered and boosted single-cell lithium-ion battery applications in portable electronics.
How does the MCP1810T-33I/TT's SOT-23 package help in compact IoT module designs?
The 3-pin SOT-23 package has a footprint of only about 1.75 mm x 3 mm, making the MCP1810T-33I/TT one of the smallest available 3.3 V LDO regulators. In IoT sensor nodes and wearable PCBs where board area is measured in square millimeters, this tiny package allows the power regulator to fit alongside a coin-cell battery holder and a BLE SoC without requiring a larger board outline.
Is the MCP1810T-33I/TT RoHS compliant, and what does the /TT suffix mean for procurement?
Yes, the MCP1810T-33I/TT carries a JESD-609 code of e3, confirming RoHS-compliant lead-free construction. The /TT suffix in Microchip's part numbering indicates a tape-and-reel packaging format with a 3-pin SOT-23 outline, suitable for automated SMT assembly. Buyers should specify the full MCP1810T-33I/TT part number to receive the correct tape-and-reel quantity and lead-free soldering compatibility.
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