LM1084IT-3.3 Texas Instruments Integrated Circuit (Other) In Stock
The LM1084IT-3.3 is a fixed 3.3V low-dropout linear voltage regulator from Texas Instruments capable of delivering up to 5A output current with a maximum dropout voltage of 1.5V. It operates with an input voltage range of 4.8V to 15V in a TO-263 surface-mount package, providing stable regulation for digital logic and microcontroller power rails. Available in stock worldwide for embedded systems and consumer electronics applications.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- LM1084IT-3.3 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3390(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3V output voltage with 1.3V nominal dropout enabling low input-to-output differential operation
- High output current capability up to 5A for powering multiple digital subsystems from a single regulator
- Wide input voltage range 4.8V to 15V (absolute max 27V) accommodating diverse power supply designs
- TO-263 surface-mount package (JESD-30 R-PSFM-T3) with exposed thermal pad for efficient heat dissipation
- Stable 3.3V fixed output ideal for direct powering of FPGA, microcontroller, and DDR memory interfaces
Applications
The LM1084IT-3.3 is widely used in embedded systems, single-board computers, and industrial control units requiring a regulated 3.3V supply from an unregulated 5V or 12V source. Its high current capability and low dropout voltage make it especially suitable for FPGA power rails, SoC digital cores, and memory interface supplies where voltage precision and thermal performance are critical.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.5V |
| Dropout Voltage1-Nom | 1.3V |
| Input Voltage Absolute-Max | 27V |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 4.8V |
| JESD-30 Code | R-PSFM-T3 |
| JESD-609 Code | e0 |
| Line Regulation-Max | 0.006% |
| Load Regulation-Max | 0.02% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 5A |
| Output Voltage1-Max | 3.365V |
| Output Voltage1-Min | 3.235V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SIP3,.1TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Packing Method | RAIL |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Voltage Tolerance-Max | 2% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and maximum output current of the LM1084IT-3.3?
The LM1084IT-3.3 provides a fixed 3.3V regulated output voltage with a maximum output current of 5A. The 1.3V nominal dropout voltage (1.5V maximum) means it can regulate properly with an input as low as 4.8V, making it efficient in battery-powered and wall-adapter power supply designs that require 3.3V logic levels.
What package does the LM1084IT-3.3 use and how should it be mounted?
The LM1084IT-3.3 is available in a 3-pin TO-263 package (JESD-30 code R-PSFM-T3), a surface-mount variant of the TO-220 through-hole package. The TO-263 can be soldered directly to PCB pads, and its exposed metal tab should be thermally connected to a copper pour or heatsink plane to dissipate heat at full load current of 5A.
Is the LM1084IT-3.3 suitable for powering DDR memory or FPGA I/O banks?
Yes, the LM1084IT-3.3 is well suited for powering DDR2/DDR3 memory VDD rails and FPGA I/O banks that require a stable 3.3V supply. Its high output current of up to 5A can supply multiple banks simultaneously, and its low dropout ensures stable regulation even when input voltage droops during load transients in complex mixed-signal systems.
What is the input voltage range for the LM1084IT-3.3?
The LM1084IT-3.3 operates with an input voltage range of 4.8V minimum to 15V maximum, with an absolute maximum rating of 27V. This range makes it compatible with 5V USB power, 9V wall adapters, and 12V industrial supply rails, providing design flexibility for a wide variety of power input conditions.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.0900 | $3.09 |
| 2+ | $3.0000 | $6.00 |
| 9+ | $2.5000 | $22.50 |
| 13+ | $1.5450 | $20.09 |
| 130+ | $1.3390 | $174.07 |
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