LM1085IS-12/NOPB Texas Instruments Integrated Circuit (Other) In Stock
LM1085IS-12/NOPB is a 3A fixed 12V output low-dropout linear voltage regulator from Texas Instruments. Features 1.3V typical dropout voltage, up to 29V input, and 18V absolute maximum rating. Ideal for post-regulation and high-current 12V power supply applications. From $1.31, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM1085IS-12/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3100(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM1085IS-12/NOPB?
- 3A output current capability with only 1.3V typical dropout voltage for efficient regulation
- Fixed 12V output voltage with tight regulation accuracy for stable power delivery
- Wide input voltage range up to 29V (18V absolute maximum) for flexible power designs
- TO-263 (D2PAK) surface-mount package for improved thermal performance on PCB
- Built-in current limiting and thermal shutdown protection for robust system reliability
What is LM1085IS-12/NOPB used for?
The LM1085IS-12/NOPB is well suited for post-regulation in multi-rail power supplies requiring a stable 12V output at up to 3A. Its low dropout voltage makes it ideal for battery-powered equipment, industrial control systems, and automotive electronics where input-output differential is limited. It is also commonly used in set-top boxes, networking equipment, and high-current embedded systems demanding reliable 12V regulation.
What are the specifications of LM1085IS-12/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.5V |
| Dropout Voltage1-Nom | 1.3V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 29V |
| Input Voltage-Min | 13.5V |
| JESD-30 Code | R-PSSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.025% |
| Load Regulation-Max | 0.072% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 3A |
| Output Voltage1-Max | 12.24V |
| Output Voltage1-Min | 11.76V |
| Output Voltage1-Nom | 12V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.55TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM1085IS-12/NOPB datasheet?
LM1085IS-12/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM1085IS-12/NOPB?
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 LM1085IS-12/NOPB?
The LM1085IS-12/NOPB provides a fixed 12V output voltage and can supply up to 3A of continuous output current, making it suitable for high-current linear regulation applications.
What is the dropout voltage of the LM1085IS-12/NOPB and why does it matter?
The typical dropout voltage is 1.3V with a maximum of 1.5V at full load. A low dropout voltage means the input supply only needs to be about 13.5V minimum to maintain a regulated 12V output, improving efficiency in tight power budget designs.
What package does the LM1085IS-12/NOPB come in and what are alternative compatible packages?
The LM1085IS-12/NOPB is offered in the TO-263 (D2PAK) 3-pin surface-mount package (JESD-30 code R-PSSO-G3). This package provides excellent thermal dissipation directly through the PCB. The through-hole TO-220 variant is also available under a different suffix if through-hole mounting is preferred.
What are typical applications for the LM1085IS-12/NOPB?
This regulator is commonly used in industrial power supplies, networking equipment, embedded computing boards, and automotive electronics where a stable 12V rail at up to 3A is required with minimal dropout overhead.
Is the LM1085IS-12/NOPB RoHS compliant?
Yes, the LM1085IS-12/NOPB is lead-free and RoHS compliant, as indicated by the NOPB suffix and Pbfree Code 'Yes' in the product specifications.
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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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