MCP1702T-3302E/MB Microchip Integrated Circuit (Other) In Stock
MCP1702T-3302E/MB is a fixed 3.3 V LDO linear regulator from Microchip delivering 250 mA output with only 2 µA quiescent current and 0.525 V typical dropout voltage from up to 13.2 V input. The SOT-89-3 package supports wide input range battery-powered applications requiring stable 3.3 V regulation.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1702T-3302E/MB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4629(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 2 µA quiescent current maximizes battery life in always-on 3.3 V powered IoT and sensor designs
- 250 mA output current with 0.525 V typical dropout from up to 13.2 V input covers alkaline, Li-ion, and 9 V block battery supplies
- Fixed 3.3 V output in a compact SOT-89-3 package with internal current limit and thermal protection for robust field deployment
Applications
The MCP1702T-3302E/MB regulates 3.3 V supply rails in battery-operated IoT sensors and wireless modules where the 2 µA quiescent current minimizes self-discharge on AA or 9 V alkaline batteries. Portable data loggers and remote monitoring nodes benefit from the wide 13.2 V maximum input, enabling direct connection to a 9 V battery stack or Li-ion pack without an additional series dropping resistor. Industrial field instruments use the SOT-89-3 package and 250 mA rated output to power MCU, RF transceiver, and sensor subsystems simultaneously from a single regulated rail.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-89-3 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.725V |
| Dropout Voltage1-Nom | 0.525V |
| Input Voltage Absolute-Max | 14.5V |
| Input Voltage-Max | 13.2V |
| Input Voltage-Min | 4.124V |
| JESD-30 Code | R-PSSO-F3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0898524% |
| Load Regulation-Max | 0.0825% |
| 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 | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-243 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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 | FLAT |
| Terminal Pitch | 1.5mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2% |
| Package | Other |
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 | Mainland China, Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How long can a 9 V alkaline battery power a system through MCP1702T-3302E/MB when the load is in deep sleep?
A standard 9 V alkaline battery holds approximately 550 mAh capacity. With the MCP1702T-3302E/MB drawing only 2 µA quiescent current in no-load standby, the regulator itself would last over 31 years on that battery alone. In practice, total system sleep current is the binding constraint, but the 2 µA IQ ensures the regulator contributes negligibly to total power budget even at 10 µA total system sleep current.
What is the maximum input voltage the MCP1702T-3302E/MB can accept, and what battery chemistries does that support?
The MCP1702T-3302E/MB accepts up to 13.2 V continuous input, covering the full voltage range of 9 V alkaline and carbon-zinc blocks (6 V to 9.6 V), 2-cell Li-ion packs (5.0 V to 8.4 V), and single-cell LiSOCl2 cells (3.0 V to 3.9 V). This eliminates the need for a front-end voltage divider or pre-regulator in diverse battery-powered product designs targeting a single 3.3 V output.
For a design switching from MCP1702T-3302E/MB to a higher-current LDO, when does the 250 mA rating become a bottleneck?
The MCP1702T-3302E/MB 250 mA output limit is reached when the combined steady-state current of all 3.3 V loads — MCU at 50 mA, RF module at 120 mA, and sensors at 30 mA for example — approaches 200 mA or more, leaving less than 50 mA margin. In those cases, upgrading to a 500 mA or 1 A rated LDO with a similar 2 µA to 5 µA IQ range, such as the MCP1754 series, provides headroom without sacrificing battery efficiency.
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|---|---|---|
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