MCP1702T-4002E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
MCP1702T-4002E/CB is a 250 mA fixed 4.0 V LDO linear regulator from Microchip in a compact SOT-23 3-pin package. Accepts up to 13.2 V input with only 525 mV typical dropout voltage. From $0.45 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1702T-4002E/CB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1545(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1702T-4002E/CB?
- Fixed 4.0 V output at up to 250 mA with only 525 mV typical dropout voltage, enabling efficient regulation from automotive or 12 V bus inputs down to 13.2 V max
- Wide input voltage range up to 13.2 V (14.5 V absolute max) supporting direct regulation from lead-acid battery systems and automotive 12 V rails
- Ultra-compact SOT-23 3-pin package minimizing PCB footprint for space-constrained portable and industrial power supply designs
What is MCP1702T-4002E/CB used for?
MCP1702T-4002E/CB regulates 4.0 V power rails in automotive accessory circuits, industrial sensors, and portable battery-powered devices supplied from 6 V to 13.2 V inputs. Its 250 mA output current supports microcontrollers, wireless modules, and display drivers without an external heat sink in most applications. The low dropout of 525 mV allows operation close to the output rail from partially discharged lead-acid or Li-ion battery packs.
What are the specifications of MCP1702T-4002E/CB?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23A-3 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 6Weeks |
| 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 | 4.845V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.10026% |
| Load Regulation-Max | 0.1% |
| 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 | 4.08V |
| Output Voltage1-Min | 3.92V |
| Output Voltage1-Nom | 4V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2% |
| Package | SOT23 (3-Pin) |
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 MCP1702T-4002E/CB datasheet?
MCP1702T-4002E/CB Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1702T-4002E/CB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of MCP1702T-4002E/CB and how does it affect use with 5 V input supplies?
MCP1702T-4002E/CB has a typical dropout voltage of 525 mV and a maximum of 725 mV at 250 mA load. With a 5 V input, the headroom is 5 V minus 4 V output equals 1 V, which is comfortably above the 725 mV maximum dropout, ensuring the device maintains regulation even at full current from a 5 V USB or wall adapter supply.
Can MCP1702T-4002E/CB be used directly from a 12 V automotive battery rail to power a 4 V sensor circuit?
Yes. The device accepts input voltages up to 13.2 V continuously (14.5 V absolute maximum), which covers the nominal 12 V to 14.4 V range of a charged lead-acid automotive battery. The 250 mA output is sufficient for microcontroller-based sensor nodes, CAN transceivers, and analog front-end circuits commonly found in automotive body electronics.
How does the SOT-23 3-pin package of MCP1702T-4002E/CB compare to TO-92 packages for power dissipation in compact designs?
The SOT-23 package has a thermal resistance of approximately 250°C/W junction-to-ambient versus about 200°C/W for TO-92, so at 250 mA with 9 V input-to-output differential the power dissipation of 2.25 W would require external heatsinking or reduced ambient temperature. In typical applications with input voltages within 2 V to 3 V of the 4 V output, the 375 mW to 750 mW dissipation stays within the SOT-23 safe operating area.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4160 | $0.42 |
| 250+ | $0.1598 | $39.95 |
| 500+ | $0.1571 | $78.55 |
| 1000+ | $0.1545 | $154.50 |
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