MCP1825T-ADJE/DC Microchip Integrated Circuit (SOT223 (5-Pin)) In Stock
The MCP1825T-ADJE/DC is an adjustable low-dropout linear voltage regulator from Microchip delivering up to 500 mA with an output voltage range of 0.8 V to 5 V. It features a low nominal dropout voltage of 0.21 V and excellent line regulation of 0.16%/V, housed in a 5-pin SOT-223 package. Ideal for precise power management in portable and embedded systems.
- Manufacturer
- Microchip
- Package
- SOT223 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1825T-ADJE/DC Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5000(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1825T-ADJE/DC?
- Adjustable output from 0.8 V to 5 V with only two external resistors, supporting flexible power rail design across multiple load voltages
- Ultra-low dropout voltage of 0.21 V nominal at 500 mA enables efficient regulation from near-battery input voltages
- Low line regulation of 0.16 %/V ensures stable output across input voltage variation, critical for sensitive analog and RF loads
What is MCP1825T-ADJE/DC used for?
The MCP1825T-ADJE/DC is well suited for post-regulation of switching supplies and battery-powered portable electronics requiring a clean, adjustable voltage rail up to 500 mA. Its low dropout performance makes it effective in 3.3 V or 1.8 V supply generation from a single lithium-ion cell, where headroom can drop to under 0.5 V during discharge. The device is also used in IoT modules, data acquisition systems, and sensor nodes where accurate and low-noise supply regulation directly impacts measurement fidelity.
What are the specifications of MCP1825T-ADJE/DC?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-223-5 |
| Factory Lead Time | 9Weeks |
| YTEOL | 9 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 0.35V |
| Dropout Voltage1-Nom | 0.21V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max (%/V) | 0.16 |
| Load Regulation-Max(%) | 1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.5A |
| Output Voltage1-Max | 5V |
| Output Voltage1-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-5 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 10 |
| Package | SOT223 (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 | Taiwan, Thailand |
Where can I find the MCP1825T-ADJE/DC datasheet?
MCP1825T-ADJE/DC Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1825T-ADJE/DC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum dropout voltage of the MCP1825T-ADJE/DC at full load current?
The MCP1825T-ADJE/DC has a nominal dropout voltage of 0.21 V and a maximum dropout voltage of 0.35 V at 500 mA output current. This low dropout performance allows the device to maintain regulation even when the input voltage is only 0.35 V above the programmed output, making it ideal for single-cell lithium-ion powered designs where the supply rails can fall below 3.5 V.
How is the output voltage of the MCP1825T-ADJE/DC set, and what range is achievable?
The output voltage is set using an external resistor divider connected to the ADJ pin, allowing the output to be programmed anywhere between 0.8 V and 5 V. The feedback reference voltage is typically 0.41 V, so standard 1% resistor values can achieve common output voltages such as 1.2 V, 1.8 V, 2.5 V, and 3.3 V with minimal deviation from the target setpoint.
Which portable and IoT designs benefit most from the MCP1825T-ADJE/DC LDO regulator?
This LDO is particularly effective in battery-powered IoT sensor nodes, wearable devices, and data loggers where a 3.3 V or 1.8 V regulated rail must be derived from a lithium-ion or alkaline battery. With a 500 mA current capability and low 0.21 V dropout, it can power a Bluetooth Low Energy module or a 32-bit microcontroller at 3.3 V even when the battery has discharged to 3.5 V.
What thermal performance does the 5-pin SOT-223 package of the MCP1825T-ADJE/DC provide?
The 5-pin SOT-223 package used by the MCP1825T-ADJE/DC has an exposed heat-slug tab that significantly reduces the junction-to-ambient thermal resistance compared to SOT-23 alternatives, typically achieving θJA of around 45°C/W on a standard PCB. This allows the device to dissipate up to approximately 500 mW at 25°C ambient without exceeding the 125°C maximum junction temperature, supporting full 500 mA load current at moderate voltage differentials.
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