MCP1701A-5002I/TO Microchip Integrated Circuit (Other) In Stock
Microchip MCP1701A-5002I/TO is a fixed 5 V, 250 mA low-dropout linear regulator in a TO-92-3 package, featuring a typical dropout voltage of 0.38 V and an input range of 6 V to 10 V, suitable for simple 5 V power rails in embedded systems.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- MCP1701A-5002I/TO Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 5 V output at up to 250 mA with a low typical dropout of 0.38 V for efficient LDO regulation
- Wide input voltage range of 6 V to 10 V (absolute max 12 V) accommodates unregulated adapter and battery inputs
- TO-92-3 through-hole package enables easy prototyping and direct integration into legacy 5 V PCB designs
Applications
The MCP1701A-5002I/TO is used to generate a stable 5 V rail from unregulated 6–10 V sources in microcontroller boards, sensor interfaces, and simple consumer electronics. Its low 0.38 V dropout and 250 mA current capability make it a suitable replacement for older 78xx regulators in applications where efficiency and quiescent current matter. The compact TO-92-3 package is popular for through-hole prototype boards and low-volume industrial control accessories.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.6V |
| Dropout Voltage1-Nom | 0.38V |
| Input Voltage Absolute-Max | 12V |
| Input Voltage-Max | 10V |
| Input Voltage-Min | 6V |
| JESD-30 Code | O-PBCY-W3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.06% |
| Load Regulation-Max | 0.08% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current1-Max | 0.2A |
| Output Voltage1-Max | 5.1V |
| Output Voltage1-Min | 4.9V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP3,.1,50 |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | CMOS |
| Terminal Finish | MATTE TIN |
| Terminal Form | WIRE |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Voltage Tolerance-Max | 2% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the typical dropout voltage of the MCP1701A-5002I/TO at full output current?
The MCP1701A-5002I/TO has a typical dropout voltage of 0.38 V and a maximum of 0.6 V, meaning the input supply only needs to exceed 5.38 V nominally to maintain a regulated 5 V output at up to 250 mA. This low dropout makes it more efficient than traditional 78L05 regulators which typically require 2 V or more of headroom.
For a 9 V battery-powered sensor node, how does the MCP1701A-5002I/TO manage its 5 V output regulation?
With a 9 V battery input well within the 6 V to 10 V operating range, the MCP1701A-5002I/TO maintains a stable 5 V output at up to 250 mA throughout the battery discharge cycle until the input drops below approximately 5.6 V. Its fixed output eliminates the need for external resistor dividers required by adjustable LDO regulators, reducing component count and design time.
When is a TO-92-3 packaged LDO like MCP1701A-5002I/TO preferred over an SOT-23 variant for prototyping?
The TO-92-3 package with 2.54 mm lead pitch allows direct insertion into a breadboard or DIP socket adapter, making it ideal for rapid prototyping and lab evaluation where SMD rework is inconvenient. For production volumes requiring 250 mA at 5 V on a compact PCB, engineers can later migrate to the SOT-23 variant while reusing the same schematic and firmware.
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