MCP1702T-2502E/MB Microchip Integrated Circuit (Other) In Stock
MCP1702T-2502E/MB is a fixed 2.5 V, 250 mA LDO linear voltage regulator from Microchip with up to 13.2 V input and only 0.75 V typical dropout in a SOT-89-3 package. It features low quiescent current and REACH-compliant construction for industrial designs. In stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1702T-2502E/MB Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 2.5 V output at up to 250 mA load current with a low 0.75 V typical dropout voltage for efficient battery-powered regulation
- Wide input voltage range of up to 13.2 V (absolute max 14.5 V) covering 9 V and 12 V unregulated supply rails
- SOT-89-3 medium-power package provides better thermal dissipation than SOT-23, handling up to 250 mA without an external heatsink
Applications
MCP1702T-2502E/MB provides a stable 2.5 V reference rail for DACs, precision ADCs, and reference ICs in portable test equipment and industrial sensor modules powered from 9 V to 12 V adapters. Its low dropout voltage of 0.75 V makes it suitable for battery-backed systems where the supply voltage decays close to the output regulation point. The SOT-89-3 package enables efficient heat management at 250 mA load in compact PCB layouts without additional thermal hardware.
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 | 1.1V |
| Dropout Voltage1-Nom | 0.75V |
| Input Voltage Absolute-Max | 14.5V |
| Input Voltage-Max | 13.2V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PSSO-F3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.07875% |
| Load Regulation-Max | 0.0625% |
| 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 | 2.55V |
| Output Voltage1-Min | 2.45V |
| Output Voltage1-Nom | 2.5V |
| 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% |
| ## MCP1702T-2502E/MB Alternates Showing results | Image |
| 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
Compatible alternatives and drop-in replacements for MCP1702T-2502E/MB:
suggested
suggested
suggested
suggested
Frequently Asked Questions
How does the 0.75 V typical dropout of MCP1702T-2502E/MB extend battery life in portable designs?
With only 0.75 V typical dropout at 250 mA, MCP1702T-2502E/MB maintains a 2.5 V output until the battery voltage drops to approximately 3.25 V, compared to 4 V for a regulator needing 1.5 V headroom. This extends usable battery capacity by 15 to 25 percent in alkaline or NiMH powered instruments.
What input voltage range makes MCP1702T-2502E/MB suitable for 12 V industrial power supplies?
MCP1702T-2502E/MB accepts input voltages from approximately 3.3 V to 13.2 V, with an absolute maximum of 14.5 V. This covers standard 12 V regulated and unregulated industrial supply rails, allowing it to generate a precise 2.5 V reference or logic rail without an additional pre-regulator, simplifying BOM for 12 V-powered sensor transmitters.
Why is the SOT-89-3 package of MCP1702T-2502E/MB preferred over SOT-23 for 250 mA applications?
The SOT-89-3 package has a larger exposed thermal pad and wider leads than SOT-23, providing lower thermal resistance and enabling 250 mA continuous output current at ambient temperatures up to 85°C. A SOT-23 regulator at the same current would require forced airflow or a heatsink, increasing system cost and PCB complexity.
Can MCP1702T-2502E/MB supply the 2.5 V reference input of a 16-bit ADC with sufficient accuracy?
Yes. MCP1702T-2502E/MB provides a fixed 2.5 V output with typically 0.4 percent output accuracy and excellent load regulation over -40°C to +125°C, meeting the reference voltage stability requirement for 16-bit ADCs where a 1 LSB error corresponds to 38 µV. The low 1.1 V maximum dropout ensures the regulated output holds stable under full load from a 3.6 V lithium cell.
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