MCP1827-ADJE/AT Microchip Integrated Circuit (Other) In Stock
The MCP1827-ADJE/AT is an adjustable low-dropout (LDO) linear regulator from Microchip with a typical dropout voltage of 330 mV and up to 1.5 A output current. It features 0.16 %/V line regulation in a 5-pin TO-220-5 through-hole package suitable for benchtop power supplies and high-current regulated rail designs.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1827-ADJE/AT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1800(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1827-ADJE/AT?
- Adjustable output voltage set by external resistor divider covering a wide output range
- Low dropout voltage of 330 mV typical (600 mV maximum) at full 1.5 A load current
- Excellent line regulation of 0.16 %/V maximum for stable output under varying input conditions
- 5-pin TO-220-5 through-hole package with exposed tab enabling bolt-to-heatsink thermal management
- Pb-free and RoHS compliant with JESD-609 e3 lead-free code
- Factory lead time of approximately 7 weeks supporting manageable production scheduling
What is MCP1827-ADJE/AT used for?
The MCP1827-ADJE/AT is used in adjustable bench power supplies, laboratory test equipment, and post-regulation stages following switching converters where low noise and low dropout are required at output currents up to 1.5 A. Its TO-220-5 package and heatsink capability make it a practical choice for linear post-regulators in audio amplifiers, RF bias circuits, and industrial equipment needing a quiet, ripple-free supply rail.
What are the specifications of MCP1827-ADJE/AT?
| Pbfree Code | Yes |
| Manufacturer Package Code | TO-220-5 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 0.6V |
| Dropout Voltage1-Nom | 0.33V |
| JESD-30 Code | R-PSFM-T5 |
| 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 | 1.5A |
| Output Voltage1-Max | 5V |
| Output Voltage1-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP5,.1,67TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Packing Method | TUBE |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China |
Where can I find the MCP1827-ADJE/AT datasheet?
MCP1827-ADJE/AT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1827-ADJE/AT?
Compatible alternatives and drop-in replacements for MCP1827-ADJE/AT:
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Frequently Asked Questions
What is the maximum output current and dropout voltage of MCP1827-ADJE/AT at full load?
MCP1827-ADJE/AT delivers up to 1.5 A continuous output current with a maximum dropout voltage of 600 mV and a typical dropout of only 330 mV, ensuring regulation is maintained when input voltage is as little as 330 mV above the desired output, reducing heat dissipation versus higher-dropout regulators.
How is the output voltage adjusted on MCP1827-ADJE/AT and what resistor values are typical for a 5 V output?
Output voltage is set by a two-resistor divider connected between the output, the ADJ pin, and ground; for a 5 V output from a nominal 1.22 V reference, choosing a lower resistor of 100 Ω and an upper resistor of approximately 310 Ω achieves the target, with 1% tolerance resistors keeping error under 1% across the 1.5 A output range.
When is MCP1827-ADJE/AT preferred over a switching regulator in a noise-sensitive circuit?
Linear regulators like MCP1827-ADJE/AT produce no switching noise, making them ideal as post-regulators in RF front-ends, ADC reference supplies, and audio circuits where switching frequencies in the range of 100 kHz to 2 MHz would introduce interference; the 330 mV typical dropout also limits thermal dissipation when the input-output differential is kept small.
What thermal management does the TO-220-5 package allow for MCP1827-ADJE/AT in high-power applications?
The TO-220-5 package includes an exposed metal tab that can be bolted directly to a heatsink; with a standard aluminum heatsink of 10 °C/W thermal resistance, the device can dissipate several watts continuously, sustaining 1.5 A output current across a wide range of input-output voltage differentials without exceeding the 125°C junction temperature limit.
Does MCP1827-ADJE/AT comply with RoHS lead-free requirements for modern PCB assembly?
Yes, MCP1827-ADJE/AT carries the JESD-609 e3 lead-free code and Pb-free designation, confirming RoHS compliance for halogen-reduced lead-free PCB assembly; the factory lead time of approximately 7 weeks is also shorter than many comparable high-current LDO alternatives.
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