MCP1725-3002E/SN Microchip Power Supply (Small Outline Packages) In Stock
The MCP1725-3002E/SN is a 500 mA low-dropout LDO voltage regulator from Microchip that delivers a fixed 3.0 V output with ±2% accuracy from a 2.3 V to 6 V input. With a nominal dropout voltage of only 210 mV and a low quiescent current, it provides efficient and stable power regulation in an 8-pin SOIC package for portable and battery-operated systems.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP1725-3002E/SN Datasheet PDF
- Category
- Power Supply
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 500 mA output current with 210 mV nominal dropout voltage
- Fixed 3.0 V output with ±2% accuracy over temperature
- Wide input range: 2.3 V to 6 V for battery and regulated-supply compatibility
- Low quiescent current for improved battery life in standby operation
- 8-pin SOIC-8 package with enable pin for power-sequencing control
- Output capacitor flexibility — stable with small ceramic capacitors
Applications
The MCP1725-3002E/SN is commonly used to power microcontrollers, wireless modules, and sensors in portable devices and IoT nodes that are supplied from a single-cell Li-ion or 4-cell AA battery pack. Its low 210 mV dropout enables regulation to remain active even when the battery voltage approaches 3.2 V, extending usable battery run time compared to regulators with higher dropout voltages.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| 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 | 3.425V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.01236% |
| Load Regulation-Max | 0.03% |
| 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 | 3.075V |
| Output Voltage1-Min | 2.925V |
| Output Voltage1-Nom | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| 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 | 1.27mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2% |
| Package | Small Outline Packages |
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 | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum input voltage at which the MCP1725-3002E/SN can still maintain a 3.0 V output?
The MCP1725-3002E/SN has a nominal dropout voltage of 210 mV at full load, so a 3.0 V output requires at least approximately 3.21 V on the input. Under lighter loads the dropout is lower, so in partial-load conditions the regulator can maintain regulation with an input of around 3.15 V or less.
How does the MCP1725-3002E/SN compare to a standard LDO with 1 V dropout for powering an MCU from a Li-ion battery?
A standard LDO with 1 V dropout would stop regulating when a 3.7 V nominal Li-ion cell discharges below 4.0 V, cutting off usable capacity. The MCP1725-3002E/SN needs only 210 mV of headroom, allowing the MCU to remain powered until the battery reaches approximately 3.21 V — recovering 20–30% more runtime on the same cell.
What output capacitor types are compatible with the MCP1725-3002E/SN for stable LDO operation?
The MCP1725-3002E/SN is stable with standard ceramic output capacitors of 1 µF to 10 µF, which are low-cost and compact for PCB layouts. Unlike older PMOS LDOs that required tantalum capacitors with specific ESR values, the MCP1725 design tolerates low-ESR ceramics, simplifying BOM selection and reducing component cost.
Is the MCP1725-3002E/SN RoHS compliant, and what package soldering process does it support?
Yes, the MCP1725-3002E/SN is Pb-free and RoHS compliant with a JESD-609 e3 code, indicating MSL 3 moisture sensitivity. It supports standard lead-free SMT reflow soldering in the 8-pin SOIC-8 package, and its footprint is interchangeable with other regulators in the SOIC-8 outline for second-source flexibility.
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