MCP1810T-25I/J8A Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip MCP1810T-25I/J8A is a fixed 2.5 V low-dropout linear regulator rated at 150 mA output current with only 0.38 V maximum dropout voltage in a VDFN-8 package. Input range 2.7 V to 5.5 V for IoT and portable use. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- MCP1810T-25I/J8A Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 2.5 V output with 150 mA current capability and ultra-low 0.38 V maximum dropout extends battery usable capacity in 3.0 V Li-Ion designs
- Wide 2.7 V to 5.5 V input range covers single-cell Li-Ion, 3.3 V logic rails, and 5 V USB supplies without design changes
- Compact VDFN-8 package with exposed pad improves thermal dissipation in dense IoT and wearable PCB layouts with minimal board area
Applications
The MCP1810T-25I/J8A is suited for powering precision ADC references, wireless sensor MCUs, and low-power RF modules in IoT devices that run from 3.3 V or 3.7 V Li-Ion battery rails. Its 2.5 V fixed output provides a clean supply for 2.5 V core-voltage FPGAs, sensor bridge circuits, and op-amp analog front ends requiring a stable mid-rail reference. The VDFN-8 package with exposed thermal pad makes it an efficient space-saving choice for wearables, smart meters, and miniature industrial sensors where a TO-92 or SOT-223 regulator would be physically too large.
Specifications
| Manufacturer Package Code | VDFN-8 |
| Date Of Intro | 2016-09-28 |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.38V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Load Regulation-Max | 0.075% |
| 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 | 2.55V |
| Output Voltage1-Min | 2.45V |
| Output Voltage1-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.08,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | MATTE TIN |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2% |
| Package | Small Outline No-lead |
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-25I/J8A:
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Frequently Asked Questions
How does the 0.38 V maximum dropout of MCP1810T-25I/J8A benefit a 3.0 V Li-Ion end-of-discharge scenario?
At end-of-discharge, a Li-Ion cell drops to approximately 3.0 V. With a maximum 0.38 V dropout, the MCP1810T-25I/J8A maintains a stable 2.5 V output at all currents up to 150 mA as long as input stays above 2.88 V. This lets the system extract an additional 5–10% of battery capacity compared to an LDO with a 0.6 V dropout specification.
For a precision sensor bridge powered from a Li-Ion cell, why is a 2.5 V LDO output more useful than a 3.3 V output?
A 2.5 V excitation voltage matches the full-scale reference of many 10-bit and 12-bit ADCs that use the supply as VREF, providing exactly 2.441 mV per LSB for 12-bit systems. This eliminates an external precision voltage reference component and simplifies the analog front-end design, saving BOM cost and 1–2 mm² of board area in miniature instruments.
What is the maximum output current of MCP1810T-25I/J8A, and which subsystems can it directly power?
The MCP1810T-25I/J8A delivers up to 150 mA of output current. This is sufficient to power a Bluetooth LE SoC (typically 10–30 mA TX), a 32-bit Cortex-M0 MCU (5–20 mA active), or an MEMS sensor array (1–5 mA combined), plus supporting logic — all from a single 2.5 V rail without additional sequencing circuitry.
How does the VDFN-8 package of MCP1810T-25I/J8A compare in thermal performance to a standard SOT-23-5?
The VDFN-8 includes an exposed copper pad on the bottom that provides a direct thermal path to the PCB ground plane, achieving a thermal resistance of approximately 40–60°C/W junction-to-board versus roughly 200°C/W for an SOT-23-5. At 150 mA load with 1 V input-output differential, the exposed pad reduces die temperature rise by over 20°C, preventing thermal shutdown in compact high-current applications.
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