IC REG LINEAR 5V 3A TO220-3 LM1085 is a 3A low dropout positive regulator. This article mainly covers pinout, application, datasheet, circuit, and more details about the LM1085 voltage regulator. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and Ics in stock. Welcome RFQ!
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Sep 15, 2021
Monroe Armstrong
Buck converter vs. linear voltage regulator - practical comparison
IC REG LINEAR 5V 3A TO220-3
LM1085 is a 3A low dropout positive regulator. This article mainly covers pinout, application, datasheet, circuit, and more details about the LM1085 voltage regulator. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and Ics in stock. Welcome RFQ!
LM1085IT-5.0
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.05996 | $5.06 |
| 10+ | $4.77355 | $47.74 |
| 100+ | $4.50335 | $450.34 |
| 500+ | $4.24844 | $2124.22 |
| 1000+ | $4.00796 | $4007.96 |
| Pin No. | Pin Name | Description |
| 1 | ADJ/GND | Adjustable pin for adjusts output version. Ground for fixed type version |
| 2 | OUTPUT | Output Voltage Pin |
| 3 | INPUT | Input Voltage Pin |
Symbol
Footprint
3D Model
The LM1085 is a regulator with a maximum dropout of 1.5 V at 3 A of load current. It has the same pin-out as TI's industry-standard LM317. Two resistors are required to set the output voltage of the adjustable output voltage version of the LM1085. Fixed output voltage versions integrate the adjusted resistors.
Texas Instruments LM1085IT-5.0 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM1085IT-5.0.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | NRND (Last Updated: 3 days ago) | |
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | TO-220-3 | |
| Number of Pins | 3Pins | |
| Operating Temperature | -40°C~125°C TJ | |
| Packaging | Tube | |
| JESD-609 Code | e0 | |
| Part Status | Not For New Designs | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 3Terminations | |
| ECCN Code | EAR99 | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Position | SINGLE | |
| Number of Functions | 1Function |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Pitch | 2.54mm | |
| Current Rating | 3A | |
| Base Part Number | LM1085 | |
| Pin Count | 3 | |
| Number of Outputs | 1Output | |
| Voltage - Input (Max) | 25V | |
| Output Voltage | 5V | |
| Output Type | Fixed | |
| Max Output Current | 3A | |
| Output Configuration | Positive | |
| Quiescent Current | 5mA | |
| Output Voltage 1 | 5V | |
| Number of Regulators | 1Regulator | |
| Min Input Voltage | 2.6V | |
| Protection Features | Over Current, Over Temperature |
| Product Attribute | Attribute Value | |
|---|---|---|
| Current - Quiescent (Iq) | 10mA | |
| Voltage Dropout (Max) | 1.5V @ 3A | |
| PSRR | 68dB (120Hz) | |
| Dropout Voltage | 1.3V | |
| Dropout Voltage1-Nom | 1.3V | |
| Voltage Tolerance-Max | 2% | |
| Min Current Limit | 3.2A | |
| Height | 4.7mm | |
| Length | 14.986mm | |
| Width | 10.16mm | |
| Thickness | 4.572mm | |
| Radiation Hardening | No | |
| RoHS Status | Non-RoHS Compliant | |
| Lead Free | Contains Lead |
Available in 3.3V, 5.0V, 12V, and Adjustable Versions
Current Limiting and Thermal Protection
Output Current 3A
Line Regulation 0.015% (typical)
Load Regulation 0.1% (typical)
High-Efficiency Linear Regulators
Battery Charger
Post Regulation for Switching Supplies
Constant Current Regulator
Microprocessor Supply
The LM1085 has a wide range of applications. This device can be used for programmable output regulation as well as local on-card regulation. By putting a set resistor between the adjust and output pins, it can be used as a precision current regulator. It is quite difficult to attain a high ripple-rejection ratio in other standard three-terminal regulators. However, the chip's adjust pin can be ignored, resulting in a high rejection ratio.
The LM1085 is available in three versions, two of which have a set regulated output and one of which is an adjustable regulator. This LM1085 is in adjustable mode, as shown in the image below, and you can alter the regulated output voltage by adjusting the value of resistors R1 and R2.
LM1085 Application Circuit
Texas Instruments (TI) is a global semiconductor firm originating in 1958 and nowadays it has over 30,000 employees who design, conduct, and sell analog and product-differentiating embedded processing components in 35 countries. Aimed at changing the world of tech, TI has put great effort into becoming the solution provider coupled with a vision.
Download datasheets and manufacturer documentation for LM1085IT-5.0
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