MCP1802T-3302I/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
MCP1802T-3302I/OT is a fixed 3.3 V LDO linear voltage regulator with 300 mA output current and ultra-low 200 mV typical dropout voltage in a SOT-23-5 package. It accepts input voltages from 4.3 V to 10 V and features high PSRR for clean supply rails. Ideal for microcontroller power, sensor modules, and portable device regulation. From $0.45 in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- MCP1802T-3302I/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5200(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3 V output with ±1% accuracy
- 300 mA continuous output current capability
- Ultra-low 200 mV typical dropout voltage
- Input voltage range 4.3 V to 10 V
- High PSRR for low-noise supply rails
- Compact SOT-23-5 package for space-constrained layouts
Applications
The MCP1802T-3302I/OT is commonly used to power 3.3 V microcontrollers, wireless modules, and sensor ICs from a 5 V or higher USB or battery supply. Its low dropout voltage makes it efficient in portable devices and IoT nodes operating near the output rail. It also suits always-on sensor platforms and wearable electronics where PCB space is limited and quiescent current must remain minimal.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 16Weeks |
| YTEOL | 3 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.25V |
| Dropout Voltage1-Nom | 0.2V |
| Input Voltage Absolute-Max | 12V |
| Input Voltage-Max | 10V |
| Input Voltage-Min | 4.3V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0376% |
| Load Regulation-Max | 0.1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| 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 | 0.95mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of MCP1802T-3302I/OT and why does it matter for battery-powered designs?
The MCP1802T-3302I/OT has a typical dropout voltage of only 200 mV at full 300 mA load. This low dropout ensures regulated 3.3 V output remains stable even when the input supply drops close to the output, maximizing usable battery capacity in portable applications.
Can MCP1802T-3302I/OT supply enough current for a typical BLE microcontroller module?
Yes, it delivers up to 300 mA continuous output current at 3.3 V, which is sufficient for most BLE SoC modules that peak at 50 mA to 200 mA during radio transmission bursts, along with peripheral sensors and LEDs.
How does MCP1802T-3302I/OT compare to similar 3.3 V LDOs in terms of input voltage range?
The MCP1802T-3302I/OT accepts input voltages from 4.3 V up to 10 V absolute maximum, accommodating single-cell Li-ion with boost converter outputs, 5 V USB rails, and 9 V alkaline battery stacks in a single compact 5-pin SOT-23 footprint.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5900 | $0.59 |
| 100+ | $0.5400 | $54.00 |
| 1000+ | $0.5300 | $530.00 |
| 5000+ | $0.5200 | $2600.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”