MCP1825-3302E/AT Microchip Integrated Circuit (Other) In Stock
The MCP1825-3302E/AT is a fixed 3.3 V, 500 mA LDO regulator with ultra-low dropout of 0.21 V nominal, ±0.5% output accuracy, and low quiescent current, housed in a 5-pin TO-220 package for low-voltage embedded and battery-powered supply rail applications.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1825-3302E/AT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2526(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3 V output with ±0.5% regulation accuracy for precision supply rails
- 500 mA output current capability with only 0.21 V nominal dropout voltage
- Ultra-low quiescent current for standby-power-sensitive battery designs
- Input voltage range from 3.7325 V to 6 V with 6.5 V absolute maximum
- 5-pin TO-220 package enabling external capacitor selection for stability optimization
Applications
The MCP1825-3302E/AT is ideal for post-regulation in embedded systems, microcontroller power supplies, and portable consumer electronics operating from single-cell Li-ion or 4-AA battery packs where input voltage stays below 6 V. Its 500 mA current capacity and 0.21 V dropout make it a practical primary regulator for 3.3 V logic rails in space-constrained IoT devices and wearable electronics that spend most of their time in sleep mode.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TO-220-5 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.35V |
| Dropout Voltage1-Nom | 0.21V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 3.7325V |
| JESD-30 Code | R-PSFM-T5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0119724% |
| Load Regulation-Max | 0.033% |
| 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 | 3.3825V |
| Output Voltage1-Min | 3.2175V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP5,.1,67TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED 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 |
| Voltage Tolerance-Max | 2.5% |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP1825-3302E/AT:
Frequently Asked Questions
How low is the dropout voltage on MCP1825-3302E/AT, and why does it matter for Li-ion battery designs?
MCP1825-3302E/AT has a nominal dropout voltage of 0.21 V and a maximum of 0.35 V at 500 mA. For a single-cell Li-ion battery that discharges down to approximately 3.6 V to 3.7 V, a dropout below 0.4 V allows the regulator to maintain a stable 3.3 V output through most of the battery's usable discharge cycle, maximizing runtime compared to higher-dropout alternatives.
What output current and accuracy can MCP1825-3302E/AT deliver for microcontroller and wireless module power rails?
MCP1825-3302E/AT supplies up to 500 mA continuously at 3.3 V with ±0.5% output voltage accuracy. This tight regulation tolerance ensures that voltage-sensitive loads such as 32 MHz microcontrollers, 2.4 GHz RF modules, and precision ADC references receive a supply within their specified operating range, improving system measurement accuracy and communication reliability.
What is the lead time and package format for MCP1825-3302E/AT, and is an SMT version available?
MCP1825-3302E/AT is packaged in a 5-pin TO-220 through-hole format, with an 8-week factory lead time and full RoHS Pb-free compliance. For PCB designs requiring SMT assembly, Microchip also offers the MCP1825 in SOT-23-5 and other compact surface-mount packages that carry the same 500 mA, 3.3 V, low-dropout specifications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2526 | $0.25 |
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