MCP1799-3302H/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock
MCP1799-3302H/DB is a high-voltage fixed 3.3V LDO regulator from Microchip in SOT-223-3 package. It supports input voltages from 4.5V to 45V with a typical dropout voltage of 0.3V, designed for industrial and automotive power circuits. Available with worldwide shipping for reliable point-of-load regulation.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1799-3302H/DB Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High-voltage LDO supporting 4.5V to 45V input range with 66V absolute maximum for rugged designs
- Fixed 3.3V output with typical 0.3V dropout voltage for efficient regulation from wide input sources
- SOT-223-3 package offering robust thermal dissipation in compact PCB footprint
- Industrial-grade reliability with long product lifecycle introduced in 2019 for design longevity
Applications
The MCP1799-3302H/DB is ideal for industrial automation and automotive electronics requiring a stable 3.3V supply from high-voltage input rails up to 45V. Its wide input range makes it well suited for motor drive auxiliary supplies, PLC interface modules, and 24V industrial bus-powered sensor nodes. The compact SOT-223-3 footprint enables integration into space-constrained control boards with efficient thermal management.
Specifications
| Manufacturer Package Code | SOT-223-3 |
| Factory Lead Time | 17Weeks |
| Date Of Intro | 2019-09-06 |
| YTEOL | 19 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.1V |
| Dropout Voltage1-Nom | 0.3V |
| Input Voltage Absolute-Max | 66V |
| Input Voltage-Max | 45V |
| Input Voltage-Min | 4.5V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.066825% |
| Load Regulation-Max | 0.0264% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 150°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.08A |
| Output Voltage1-Max | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.3mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2% |
| Package | SOT223 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP1799-3302H/DB:
Regulator, 3.3V, 1.1V Dropout, CMOS, PDSO3
Frequently Asked Questions
What input voltage range does the MCP1799-3302H/DB support for industrial 24V bus applications?
The MCP1799-3302H/DB accepts input voltages from 4.5V to 45V with an absolute maximum of 66V, making it directly compatible with 24V industrial bus rails and automotive 12V to 36V supplies while delivering a regulated 3.3V output.
What is the typical dropout voltage of the MCP1799-3302H/DB and how does it affect regulation efficiency?
The MCP1799-3302H/DB has a typical dropout voltage of 0.3V and a maximum of 1.1V. This low dropout characteristic ensures the 3.3V output remains regulated even as the input voltage approaches 3.6V minimum, extending usable battery or supply operating window by several hundred millivolts.
Which package does the MCP1799-3302H/DB use and what thermal advantages does it provide?
The MCP1799-3302H/DB uses a SOT-223-3 package, which features a large exposed tab for heat spreading. This provides significantly better thermal dissipation compared to SOT-23 alternatives, allowing higher power dissipation in designs where input-to-output voltage differential and load current would otherwise require a heatsink.
What lead time should procurement teams plan for when ordering the MCP1799-3302H/DB?
The MCP1799-3302H/DB carries a factory lead time of approximately 17 weeks. Procurement teams managing industrial or automotive designs should place blanket orders or maintain at least 4 to 8 weeks of safety stock to prevent supply chain interruptions given the extended lead time.
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