MCP1703AT-1502E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
The MCP1703AT-1502E/CB is a fixed 1.5 V low-dropout (LDO) linear regulator from Microchip, accepting input voltages from 2.7 V to 16 V (absolute max 18 V) with a 1.2 V typical dropout voltage and 0.06% line regulation. Packaged in a 3-pin SOT-23A, it is ideal for battery-powered and automotive-adjacent power supply rails.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703AT-1502E/CB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4900(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 1.5 V output LDO regulator
- Wide input voltage range: 2.7 V to 16 V (18 V absolute max)
- Low dropout voltage: 1.2 V typical
- Excellent line regulation: 0.06% max
- Low quiescent current for battery-powered designs
- Compact 3-pin SOT-23A package, RoHS-compliant
Applications
The MCP1703AT-1502E/CB is used in portable battery-powered devices, automotive subsystems, and industrial equipment where a stable 1.5 V rail must be derived from a wide input range of up to 16 V. Its low dropout and excellent line regulation make it suitable for powering low-voltage microcontrollers, sensors, and RF front-end modules in space-constrained designs.
Specifications
| Manufacturer Package Code | SOT-23A-3 |
| YTEOL | 13 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1.2V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.05985% |
| Load Regulation-Max | 0.0375% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.2A |
| Output Voltage1-Max | 1.545V |
| Output Voltage1-Min | 1.455V |
| Output Voltage1-Nom | 1.5V |
| 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 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| 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 | 3% |
| 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 | Taiwan, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum input voltage the MCP1703AT-1502E/CB can handle, and does it suit 12 V automotive power rails?
The MCP1703AT-1502E/CB accepts input voltages up to 16 V continuously, with a transient absolute maximum of 18 V. A 12 V automotive rail falls well within this range, making it suitable for producing a stable 1.5 V output for sensors or microcontrollers in automotive accessory designs, provided the 1.2 V dropout voltage is respected.
How does the 1.2 V dropout voltage of MCP1703AT-1502E/CB affect its usable input voltage range at a 1.5 V output?
With a 1.5 V fixed output and a 1.2 V typical dropout, the MCP1703AT-1502E/CB requires at least 2.7 V input to maintain regulation. This means it cannot be used directly from a discharged lithium-ion cell below 2.7 V, but remains functional across most alkaline-battery, USB, and regulated DC rail conditions from 2.7 V to 16 V.
Is the MCP1703AT-1502E/CB suitable for a 3-pin SOT-23 PCB footprint already designed for a competing LDO, and is it RoHS-compliant?
Yes. The MCP1703AT-1502E/CB uses a 3-pin SOT-23A package, which is footprint-compatible with many industry-standard 3-pin LDOs in the SOT-23 family. It also carries a JESD-609 code of e3, confirming RoHS-compliant, lead-free construction for designs governed by EU RoHS or similar environmental directives.
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