LT3066EMSE-3.3#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LT3066EMSE-3.3#TRPBF is a 45 V input, 500 mA fixed 3.3 V low-dropout linear regulator with 0.3 V typical dropout, programmable current limit, output discharge, and low noise performance in a 12-pin MSOP package. From $4.80 in stock worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- LT3066EMSE-3.3#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.7900(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 3.9 V to 45 V input range with 0.3 V typical dropout supports automotive and industrial supply rails
- Programmable current limit protects downstream circuits from overcurrent during fault conditions
- Integrated output discharge function rapidly discharges load capacitors for fast power sequencing
Applications
The LT3066EMSE-3.3#TRPBF is designed for industrial automation, automotive electronics, and test equipment requiring a clean 3.3 V rail from high-voltage input supplies up to 45 V. Its programmable current limit and low-noise output make it suitable for powering FPGAs, ADCs, and RF modules in noise-sensitive measurement systems. The 500 mA output capacity and wide input range also serve motor driver pre-regulation and distributed power architectures in harsh environments.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1666 |
| YTEOL | 10 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.51V |
| Dropout Voltage1-Nom | 0.3V |
| Input Voltage Absolute-Max | 50V |
| Input Voltage-Max | 45V |
| Input Voltage-Min | 3.9V |
| JESD-30 Code | R-PDSO-G12 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0195% |
| Load Regulation-Max | 0.022% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 0.5A |
| Output Voltage1-Max | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | Small Outline Packages |
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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT3066EMSE-3.3#TRPBF accept and how does this support automotive designs?
The LT3066EMSE-3.3#TRPBF accepts input voltages from 3.9 V to 45 V, with an absolute maximum of 50 V, making it directly compatible with 12 V and 24 V automotive battery rails including load-dump transients. The fixed 3.3 V output with 0.3 V typical dropout provides a stable logic supply for CAN transceivers, microcontrollers, and sensor interfaces in automotive ECUs.
How does the programmable current limit in the LT3066EMSE-3.3#TRPBF protect sensitive downstream circuits?
The LT3066EMSE-3.3#TRPBF allows designers to set a specific current limit threshold using an external resistor, protecting FPGAs, ADCs, and RF components from overload currents exceeding 500 mA during fault conditions. This protection is particularly valuable in industrial test equipment where short-circuit events on the 3.3 V bus must not damage expensive downstream components.
In a power sequencing design, how does the LT3066EMSE-3.3#TRPBF's output discharge feature improve system reliability?
The integrated output discharge function in the LT3066EMSE-3.3#TRPBF actively discharges the output capacitor when the regulator is disabled, ensuring the 3.3 V rail ramps down predictably within microseconds rather than floating. This is essential for multi-rail power sequencing in FPGAs and SoCs that require supply voltages to reach near 0 V before reapplication, preventing logic latch-up and ensuring repeatable startup across 500 mA load conditions.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 19+ | $3.7000 | $70.30 |
| 1000+ | $2.7900 | $2790.00 |
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