MCP1700-3302E/TO Microchip Integrated Circuit (Other) In Stock
Microchip MCP1700-3302E/TO is a 250 mA fixed 3.3 V low-dropout linear voltage regulator with 178 mV typical dropout voltage, 2% output accuracy, and 6 V maximum input voltage in a through-hole TO-92-3 package. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1700-3302E/TO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3600(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 178 mV typical dropout voltage at 250 mA output current, enabling regulation from a Li-ion cell down to 3.5 V input
- Fixed 3.3 V output with 2% accuracy (3.234 V to 3.366 V) meeting the supply tolerance of most 3.3 V microcontrollers and sensors
- 250 mA output current capability in a compact TO-92-3 through-hole package ideal for prototyping and cost-sensitive production designs
- 6 V maximum input voltage with only 1 µA typical quiescent current in shutdown, extending battery life in low-power IoT sensor nodes
Applications
The MCP1700-3302E/TO is widely used to regulate 3.3 V from alkaline AA batteries, Li-ion cells, or 5 V USB rails in low-power IoT sensors, wireless modules, and microcontroller development boards. Its 178 mV dropout allows a 3.7 V Li-ion cell to power a 3.3 V system until the battery reaches approximately 3.5 V, maximizing usable runtime in remote environmental monitoring nodes. The TO-92-3 package suits breadboard prototyping and cost-optimized production runs where a simple, proven LDO is preferred over a switching regulator.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TO-92-3 |
| Factory Lead Time | 19Weeks |
| YTEOL | 10 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.35V |
| Dropout Voltage1-Nom | 0.178V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 4.3V |
| JESD-30 Code | O-PBCY-T3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.1089% |
| Load Regulation-Max | 0.0495% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.25A |
| Output Voltage1-Max | 3.399V |
| Output Voltage1-Min | 3.201V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP3,.1,50 |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Packing Method | BAG |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100; TS 16949 |
| Surface Mount | NO |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Voltage Tolerance-Max | 3% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP1700-3302E/TO:
suggested
suggested
Frequently Asked Questions
What is the minimum input voltage required for the MCP1700-3302E/TO to maintain a 3.3 V regulated output at full load?
At the maximum 250 mA output current, the MCP1700-3302E/TO requires a minimum input voltage of approximately 3.478 V, based on the 3.3 V output plus the 178 mV typical dropout voltage. The specified minimum input voltage is 4.3 V for guaranteed performance across the full operating temperature range, but the 0.35 V maximum dropout rating means the regulator maintains output regulation down to 3.65 V input under worst-case conditions.
How does the 1 µA quiescent current of the MCP1700-3302E/TO benefit battery-powered sensor designs?
With only 1 µA typical quiescent current when lightly loaded, the MCP1700-3302E/TO adds negligible self-discharge to a battery-powered design where the load sleeps for extended periods. In a system that wakes every 60 seconds to sample and transmit, the LDO's own current draw over months-long deployment represents less than 1% of total energy consumed from a standard 2000 mAh AA alkaline cell.
For a compact 3.3 V microcontroller board, how does the MCP1700-3302E/TO compare to a switching regulator for low-current loads below 100 mA?
At output currents below 100 mA, the power loss in the MCP1700-3302E/TO is typically less than 35 mW when converting from 4 V to 3.3 V, making its efficiency penalty over a switching regulator negligible for most sensor nodes. The LDO produces no switching noise, eliminating the need for EMI filtering, and its 3-pin TO-92 package requires only 2 external bypass capacitors to meet the 2% output accuracy specification.
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