MCP1792T-4102H/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock
Microchip MCP1792T-4102H/DB is a fixed 4.1 V high-input-voltage LDO regulator accepting up to 55 V input in a compact 3-lead SOT-223 package. Features nominal 0.25 V dropout voltage and up to 70 V absolute maximum input rating for robust industrial applications. Available in tape-and-reel with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1792T-4102H/DB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3103(MOQ 25)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide input range from 4.5 V to 55 V (absolute max 70 V) enabling direct regulation from high-voltage industrial bus rails and automotive 48 V systems
- Low nominal dropout voltage of 0.25 V (max 1.2 V) maximizing efficiency when regulating down to a fixed 4.1 V output from elevated supply rails
- Compact SOT-223-3 package with exposed tab for enhanced thermal dissipation, supporting higher output currents without external heatsink in many designs
Applications
MCP1792T-4102H/DB is suited for industrial control systems, factory automation equipment, and motor drive auxiliaries powered from 24 V or 48 V bus rails that need a stable 4.1 V local supply for microcontrollers or sensors. Its wide 4.5 V to 55 V input tolerance makes it robust against supply transients and overvoltage conditions common in industrial environments. The SOT-223 package with thermal tab also fits automotive body electronics and power management circuits requiring a high-voltage LDO with reliable thermal performance on standard PCB copper pours.
Specifications
| Manufacturer Package Code | SOT-223-3 |
| Factory Lead Time | 8Weeks |
| YTEOL | 18 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.2V |
| Dropout Voltage1-Nom | 0.25V |
| Input Voltage Absolute-Max | 70V |
| Input Voltage-Max | 55V |
| Input Voltage-Min | 4.5V |
| JESD-30 Code | R-PSSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.103525% |
| Load Regulation-Max | 0.082% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 150°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.1A |
| Output Voltage1-Max | 4.223V |
| Output Voltage1-Min | 3.977V |
| Output Voltage1-Nom | 4.1V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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 | 2.3mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 3% |
| ## MCP1792T-4102H/DB Alternates Showing results | Image |
| Package | SOT223 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and output voltage does MCP1792T-4102H/DB support?
MCP1792T-4102H/DB accepts input voltages from 4.5 V to 55 V with a 70 V absolute maximum, and provides a fixed 4.1 V regulated output. The nominal dropout voltage is 0.25 V, allowing the regulator to maintain output regulation with as little as 0.25 V headroom between input and output under light load conditions.
How does MCP1792T-4102H/DB perform in a 24 V industrial bus environment powering a 4.1 V microcontroller rail?
Powered from a 24 V industrial bus, MCP1792T-4102H/DB regulates down to a stable 4.1 V with a dropout of only 0.25 V nominal (1.2 V maximum), meaning the regulator stays in regulation even if the bus drops to 5.3 V. The 19.9 V difference between input and output dissipates as heat, so SOT-223's exposed thermal tab should be soldered to a copper pour for adequate thermal management.
Can MCP1792T-4102H/DB handle automotive 48 V mild-hybrid systems and load dump transients?
Yes, MCP1792T-4102H/DB has a 70 V absolute maximum input rating, providing margin above the 48 V nominal rail including load dump transients that can spike to 60 V or higher in mild-hybrid automotive systems. However, designers should verify transient suppression clamping keeps input below 70 V during worst-case load dump events to remain within absolute maximum ratings.
What thermal considerations apply when using MCP1792T-4102H/DB in a SOT-223 package at high input-output differential?
With a 55 V input and 4.1 V output at rated current, the power dissipation across MCP1792T-4102H/DB can reach several watts, exceeding the SOT-223 package limit without PCB thermal relief. Designers should use a copper pour connected to the exposed SOT-223 tab, sized to keep junction temperature below 125°C based on a thermal resistance of approximately 40°C/W to 60°C/W for the package-to-board interface.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $0.3800 | $9.50 |
| 100+ | $0.3400 | $34.00 |
| 1000+ | $0.3300 | $330.00 |
| 3000+ | $0.3167 | $950.10 |
| 4000+ | $0.3103 | $1241.20 |
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