MCP1725-3302E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP1725-3302E/SN is a 500 mA CMOS low-dropout regulator with a fixed 3.3 V output in an 8-pin SOIC package. Features a typical dropout voltage of 210 mV at full load and input voltage range of 3.73 V to 6 V. Available from distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP1725-3302E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5167(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1725-3302E/SN?
- Fixed 3.3 V output with ±0.5% accuracy at room temperature, ensuring stable supply for precision analog and digital loads
- Low 210 mV typical dropout voltage at 500 mA allows operation from 3.5 V Li-ion cells with maximum energy extraction
- 500 mA output current with CMOS pass element drawing only 120 µA quiescent current, ideal for battery-powered devices
- 8-pin SOIC-8 package with standard 1.27 mm pitch fits common PCB footprints and simplifies sourcing and assembly
What is MCP1725-3302E/SN used for?
MCP1725-3302E/SN is commonly used to power microcontrollers, Bluetooth modules, and sensor ICs from a single-cell Li-ion or two AA battery pack, thanks to its low 210 mV dropout. IoT wearables, wireless sensor nodes, and handheld instruments rely on it for a stable 3.3 V rail with minimal idle current drain. It also serves as a post-regulator after a switching converter in noise-sensitive analog measurement applications to remove switching ripple.
What are the specifications of MCP1725-3302E/SN?
| 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 | 3.7325V |
| JESD-30 Code | R-PDSO-G8 |
| 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 | 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 |
Where can I find the MCP1725-3302E/SN datasheet?
MCP1725-3302E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1725-3302E/SN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum input voltage needed for MCP1725-3302E/SN to maintain its 3.3 V output at 500 mA load?
At 500 mA, the MCP1725-3302E/SN requires an input voltage of at least 3.3 V plus its 210 mV typical dropout, so approximately 3.51 V minimum. The specified minimum input is 3.73 V to guarantee regulation across the full temperature range from -40°C to 125°C, allowing direct use with a single-cell LiPo above its 3.7 V nominal level.
How does the quiescent current of MCP1725-3302E/SN affect battery life in a wireless sensor node?
The MCP1725-3302E/SN draws only 120 µA of quiescent current under no load, which adds roughly 1 mAh of drain per 8 hours in sleep mode — negligible compared to the MCU's standby current of several hundred microamps. This low ground current makes it practical for nodes running on a 1000 mAh LiPo that must last months in the field.
For a compact IoT module design, how does the SOIC-8 package of MCP1725-3302E/SN compare to SOT-23 alternatives?
The SOIC-8 footprint measures 4.9 mm × 3.9 mm, which is larger than a 5-pin SOT-23 (2.9 mm × 1.6 mm), but it provides two additional bypass capacitor pads on the package, simplifies soldering for manual rework, and is easier to handle during prototype assembly. For high-volume automated production, the area difference is manageable against the advantage of a lower input capacitor requirement.
Can MCP1725-3302E/SN replace an MCP1700 series regulator in an existing design, and what differences should engineers note?
MCP1725-3302E/SN can replace an MCP1700 in applications needing more than 250 mA, since it supports 500 mA versus the MCP1700's 250 mA limit. Both share a 3.3 V fixed output and similar dropout around 200 mV at rated current, but the MCP1725 requires a larger minimum output capacitor of 1 µF ceramic versus 0.1 µF, so layout must accommodate the updated decoupling.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6900 | $0.69 |
| 3+ | $0.5167 | $1.55 |
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