LM1085ISX-ADJ/NOPB

Name: LM1085ISX-ADJ/NOPB
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

The LM1085ISX-ADJ/NOPB is a high-performance linear regulator with a fixed or adjustable output

4,167 Effective Inventory

LM1085ISX-ADJ/NOPB

Effective Inventory4,167

The LM1085ISX-ADJ/NOPB is a high-performance linear regulator with a fixed or adjustable output

Manufacturer Part # : LM1085ISX-ADJ/NOPB
Package/Case: TO263-3
Brand: Texas Instruments
Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Series : LM1085

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LM1085ISX-ADJ/NOPB DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$0.680	$0.68
10	$0.554	$5.54
30	$0.490	$14.70
100	$0.441	$44.10
500	$0.403	$201.50
1000	$0.384	$384.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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LM1085ISX-ADJ/NOPB Details

The LM1085ISX-ADJ/NOPB is an adjustable linear voltage regulator from Texas Instruments, designed for providing a stable output voltage in various electronic applications. This regulator offers a high current capability and low dropout voltage, making it suitable for powering sensitive components and circuits. It is housed in a surface-mount package for easy integration into PCB designs.

Pinout

1 (ADJ): Adjustable Output
2 (VOUT): Regulated Output
3 (VIN): Input Voltage
4 (GND): Ground

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

High Current Capability: Capable of delivering high currents to power demanding loads.
Low Dropout Voltage: Operates with low dropout voltage for efficient power conversion.
Adjustable Output: Allows for flexibility in setting the output voltage as per application requirements.
Thermal Shutdown: Features thermal shutdown protection to prevent overheating.
Short Circuit Protection: Includes short circuit protection for improved reliability.

Application

Power Supply Regulation: Ideal for maintaining stable voltages in power supply circuits.
Embedded Systems: Used in embedded systems for regulating voltage levels to various components.
Audio Amplifiers: Suitable for powering audio amplifier circuits with precise voltage control.

Where to Use

The LM1085ISX-ADJ/NOPB is recommended for applications requiring a stable and adjustable voltage supply. It is commonly used in power supply designs, embedded systems, and audio amplifier circuits for efficient voltage regulation.

How to Use

Connect the LM1085ISX-ADJ/NOPB to your circuit by wiring the VIN, VOUT, and ADJ pins as per the desired output voltage. Ensure proper heat sinking for thermal management and adhere to input and output voltage specifications for optimal performance. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the LM1085ISX-ADJ/NOPB demonstrates how to integrate the voltage regulator into your electronic design. It showcases connections for input voltage, output voltage, and ground, ensuring stable and regulated power delivery.

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

Equivalents

LM317: A classic adjustable linear regulator with similar functionality.
LM2940: Another linear voltage regulator option for stable voltage output.

Complementary

The LM1085ISX-ADJ/NOPB can be paired with the LM7805 for dual rail power supplies or with the LM1117 for additional voltage regulation stages. Ensure compatibility and voltage requirements match for optimal system performance.

Frequently Asked Questions

Q: What is the dropout voltage of the LM1085ISX-ADJ/NOPB?

A: The dropout voltage of the LM1085ISX-ADJ/NOPB is typically around 1.5V at full load. Consult the datasheet for precise dropout voltage specifications under different operating conditions.

Q: Can the LM1085ISX-ADJ/NOPB be used in audio amplifier circuits?

A: Yes, the LM1085ISX-ADJ/NOPB is suitable for powering audio amplifier circuits, providing stable and adjustable voltage outputs for optimum amplifier performance.

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

FAQs

What is LM1085ISX-ADJ/NOPB?

The LM1085ISX-ADJ/NOPB is a high-performance 3A low dropout voltage regulator designed by Texas Instruments. It is ideal for applications requiring a stable and adjustable output voltage from a higher input voltage source, such as industrial power supplies, automotive electronics, and consumer electronics.

How Does LM1085ISX-ADJ/NOPB Work?

The LM1085ISX-ADJ/NOPB works by regulating the input voltage to a stable and adjustable output voltage with a low dropout voltage. It uses a precision voltage reference and a feedback control loop to maintain the desired output voltage, even when the input voltage varies. The regulator can deliver up to 3A of continuous output current, making it suitable for powering a wide range of loads.

How Many Pins does LM1085ISX-ADJ/NOPB have and What are the Functions of the Pinout Configuration?

The LM1085ISX-ADJ/NOPB is housed in an adjustable 3-pin TO-263 (D2PAK) package. The pinout configuration includes:

IN: Input voltage pin.
ADJ: Adjustable output voltage pin.
OUT: Regulated output voltage pin.

What are the Pros and Cons of LM1085ISX-ADJ/NOPB?

Pros:

Low Dropout Voltage: Allows operation with very small voltage differentials between the input and output.
Adjustable Output Voltage: Provides flexibility in setting the desired output voltage.
Thermal Shutdown: Includes thermal shutdown and current limit protection features for robust operation.
High Current Capability: Capable of delivering up to 3A of continuous output current.
Wide Operating Temperature Range: Suitable for demanding environmental conditions.

Cons:

Heat Dissipation: May require heatsinking for high-power applications to dissipate heat effectively.
External Components: May need additional external components for stability and protection in certain applications.
Package Size: The TO-263 package is relatively larger compared to other surface-mount packages.

Are There Any Equivalents/Alternatives to LM1085ISX-ADJ/NOPB for Recommendation?

The LM2940 from Texas Instruments is a similar adjustable low dropout voltage regulator with a lower output current capability.
Alternatives to the LM1085ISX-ADJ/NOPB include the LT1083 from Analog Devices and the REG1117 from Texas Instruments.