LM1085IS-ADJ

Name: LM1085IS-ADJ
Brand: Texas Instruments
Rating: 4.5 (10 reviews)
Author: Lisleapex

LM1085IS-ADJ offers a continuous output current of 3 amps and a voltage regulation of up to 29 volts

6,540 Effective Inventory

LM1085IS-ADJ

Effective Inventory6,540

LM1085IS-ADJ offers a continuous output current of 3 amps and a voltage regulation of up to 29 volts

Manufacturer Part # : LM1085IS-ADJ
Package/Case: TO-263 (KTT)-3
Part Status : NRND
Brand: Texas Instruments
Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Series : LM1085

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LM1085IS-ADJ DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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LM1085IS-ADJ Details

The LM1085IS-ADJ is a versatile adjustable voltage regulator chip designed for high current applications from Texas Instruments, offering compact design for small spaces, easy installation and setup, durable construction for long lifespan, and sophisticated features for advanced applications. This device is ideal for industrial equipment, consumer products, and telecommunications systems where reliable power supply is crucial.

Key Features

Compact Design: Designed for small spaces and easy installation.
Sophisticated Features: Offers advanced features for high current applications.
Durable Construction: Built for long lifespan and reliable operation.

Applications

Industrial Equipment: Suitable for industrial equipment requiring high current and adjustable voltage supply.
Consumer Products: Ideal for consumer products where reliable power supply is crucial, such as audio amplifiers and LED lighting systems.
Telecommunications Systems: Used in telecommunications systems where stable power supply is essential for reliable communication.

Where to Use

The LM1085IS-ADJ is suitable for applications that require adjustable voltage and high current, such as industrial equipment, consumer products, and telecommunications systems. It is ideal for systems where reliable power supply is crucial.

How to Use

Connect the LM1085IS-ADJ to your circuit by wiring the input voltage and output current according to the datasheet specifications. Ensure proper heat sink connections for efficient thermal management. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the LM1085IS-ADJ illustrates how to connect the voltage regulator chip to a load circuit. It includes connections for input voltage, output current, and heat sink, ensuring proper operation and reliable power supply.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Complementary

The LM1085IS-ADJ can be complemented by other voltage regulator chips from Texas Instruments, such as the LM317 or LM339, which offer similar features and performance for specific applications.

When selecting complementary components, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum current output of the LM1085IS-ADJ?

A: The LM1085IS-ADJ has a maximum current output of 5A. For more details, refer to the datasheet for specific operating conditions and limitations.

Q: Can the LM1085IS-ADJ be used in automotive applications?

A: Yes, the LM1085IS-ADJ is suitable for automotive applications where high current and adjustable voltage supply are required. However, ensure that the component meets the specific requirements of your application.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Output options	Adjustable Output, Fixed Output	Iout (max) (A)	3
Vin (max) (V)	29	Vin (min) (V)	2.6
Vout (max) (V)	27.5	Vout (min) (V)	1.25
Fixed output options (V)	3.3, 5, 12	Noise (µVrms)	38
Iq (typ) (mA)	5	Thermal resistance θJA (°C/W)	23
Rating	Catalog	Load capacitance (min) (µF)	10
Regulated outputs (#)	1	Accuracy (%)	4
PSRR at 100 KHz (dB)	30	Dropout voltage (Vdo) (typ) (mV)	1300
Operating temperature range (°C)	-40 to 125

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM1085IS-ADJ PDF Download

FAQs

What is LM1085IS-ADJ?

The LM1085IS-ADJ is a low dropout voltage regulator designed by Texas Instruments. It is an adjustable linear regulator capable of providing a regulated output voltage with a dropout voltage as low as 1.3V. This makes it suitable for applications where a stable voltage rail is required despite variations in input voltage or load conditions.

How Does LM1085IS-ADJ Work?

The LM1085IS-ADJ works by regulating the output voltage based on the voltage reference and feedback loop mechanism. It compares the actual output voltage with the desired voltage set by an external resistor network to adjust the regulator's internal circuitry and maintain a stable output. The low dropout feature allows the regulator to operate even when the input voltage is very close to the output voltage.

How Many Pins does LM1085IS-ADJ have and What are the Functions of the Pinout Configuration?

The LM1085IS-ADJ is housed in a TO-263 (D2PAK) package with 3 pins. The pinout configuration includes:

ADJ: Adjust pin for setting the output voltage.
VIN: Input voltage pin.
VOUT: Regulated output voltage pin.

What are the Pros and Cons of LM1085IS-ADJ?

Pros:

Low Dropout Voltage: Allows operation with very small voltage differentials between input and output.
Adjustable Output: Can be configured to provide different output voltages based on the application requirements.
Thermal Protection: Includes built-in thermal shutdown protection to prevent overheating.
Short-Circuit Protection: Offers short-circuit current limiting to protect the circuitry.

Cons:

Heat Dissipation: May require heat sinking when operating at high currents or voltage differentials.
External Components: Additional capacitors or resistors may be needed for stability or specific functionality.

Are There Any Equivalents/Alternatives to LM1085IS-ADJ for Recommendation?

The LM317 adjustable voltage regulator is a similar alternative from Texas Instruments.
Alternatives to the LM1085IS-ADJ include the LT1085 from Linear Technology and the ADP3335 from Analog Devices.