LM317EMPX

Name: LM317EMPX
Brand: NS Electronics Co Ltd
Rating: 4.5 (10 reviews)
Author: Lisleapex

Single output standard regulator

3,576 Effective Inventory

LM317EMPX

Effective Inventory3,576

Single output standard regulator

Manufacturer Part # : LM317EMPX
Other Name : LM317EMPX/NOPB
Package/Case: SOT223-3
Brand: NS Electronics Co Ltd
Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Series : LM317

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LM317EMPX DataSheet

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LM317EMPX Details

The LM317EMPX is a highly adjustable, precision voltage regulator from Texas Instruments, designed for use in a wide range of applications where stable and precise voltage regulation is required. This device features an internal temperature compensation circuit to ensure accurate output voltage over the entire operating temperature range.

Pinout

1 (ADJ): Adjust Pin
2 (VOUT): Output Voltage
3 (VIN): Input Voltage
4 (GND): Ground

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

Key Features

Highly Adjustable Output Voltage: The LM317EMPX allows for precise adjustment of the output voltage over a wide range.
Precision Temperature Compensation: Internal temperature compensation ensures accurate output voltage over the entire operating temperature range.
Low Dropout Regulation: The device features low dropout regulation, allowing it to operate with minimal input-to-output voltage difference.
High Current Capability: The LM317EMPX can deliver high currents up to 1.5A, making it suitable for a wide range of applications.

Applications

Voltage Regulation: The LM317EMPX is ideal for use in voltage regulation circuits where precise and stable output voltage is required.
Precision Power Supplies: This device can be used in precision power supplies, such as those found in medical equipment or industrial control systems.
Audio Equipment: The LM317EMPX is suitable for use in audio equipment, such as amplifiers and preamplifiers, where precise voltage regulation is critical.

Where to Use

The LM317EMPX can be used in a wide range of applications where stable and precise voltage regulation is required. Some examples include:

Aerospace and Defense Systems
Medical Equipment
Industrial Control Systems
Audio Equipment

How to Use

To use the LM317EMPX, simply connect the input voltage (VIN) to the desired output voltage (VOUT), and adjust the ADJ pin to set the desired output voltage. Ensure proper power supply connections to VIN and GND.

(Tip: For detailed usage instructions, refer to the datasheet.)

Application Circuit

The application circuit diagram for the LM317EMPX illustrates how to connect the device to a power supply and adjust the output voltage. It includes connections for input voltage, output voltage, and ground.

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

Equivalents

LM317: A similar voltage regulator from Texas Instruments offering comparable features and performance.
ADJ5105: An alternative adjustable voltage regulator from Analog Devices with equivalent functionality.

Complementary

The LM317EMPX can be complemented by other Texas Instruments devices, such as the TLV703, which offers additional features and performance for use in precision power supplies.

(Tip: When selecting complementary devices, 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 output current of the LM317EMPX?

A: The LM317EMPX can deliver high currents up to 1.5A, making it suitable for a wide range of applications.

Q: Can the LM317EMPX be used in precision power supplies?

A: Yes, the LM317EMPX is ideal for use in precision power supplies where precise and stable output voltage is required.

Specifications

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

Product Category !	Linear Voltage Regulators	RoHS	N
Mounting Style	SMD/SMT	Package / Case	SOT-223-4
Number of Outputs	1 Output	Polarity	Positive
Output Voltage	1.2 V to 37 V	Output Current !	1 A
Output Type	Adjustable	Input Voltage, Min	4.2 V
Input Voltage, Max	40 V	Minimum Operating Temperature	0 C
Maximum Operating Temperature !	+ 125 C	Load Regulation !	0.5 %
Line Regulation !	0.04 %/V	Brand	Texas Instruments
Product Type !	Linear Voltage Regulators	Factory Pack Quantity	2000
Subcategory	PMIC - Power Management ICs	Unit Weight	0.003951 oz

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 LM317EMPX PDF Download

FAQs

What is LM317EMPX?

The LM317EMPX is an adjustable three-terminal positive voltage regulator integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a stable and adjustable output voltage, making it suitable for a wide range of linear voltage regulation applications.

How Does LM317EMPX Work?

The LM317EMPX works by using an internal voltage reference and a feedback mechanism to regulate the output voltage. By adjusting the resistor connected to the adjustment pin, the output voltage can be set to the desired level. It can handle an input voltage range and provide a regulated output voltage with low ripple and good load regulation.

How Many Pins does LM317EMPX have and What are the Functions of the Pinout Configuration?

The LM317EMPX is available in a 3-pin SOT-223 package. The pinout configuration includes:

Input (VIN): The input pin where the unregulated voltage is applied.
Output (VOUT): The regulated output voltage is obtained from this pin.
Adjust (ADJ): The feedback pin used to set the output voltage by connecting a resistor divider network.

What are the Pros and Cons of LM317EMPX?

Pros:

Adjustable Output: Provides the flexibility to set the output voltage according to the application requirements.
Simple Design: Requires minimal external components for voltage regulation.
Wide Input Voltage Range: Can handle a wide range of input voltages for various applications.
Thermal Regulation: Includes thermal overload protection and safe operating area protection.

Cons:

Dropout Voltage: Requires a higher input voltage than the desired output voltage due to its dropout voltage.
Heat Dissipation: May require a heat sink for high power applications to dissipate heat effectively.
Noisier than Low-Dropout Regulators: Not as suitable for noise-sensitive applications compared to low-dropout regulators.

Are There Any Equivalents/Alternatives to LM317EMPX for Recommendation?

The LM338 from Texas Instruments is a higher current, adjustable three-terminal regulator that can be an alternative to the LM317EMPX.
Alternatives to the LM317EMPX include the LM350 and LM396 from Texas Instruments, both of which are adjustable positive voltage regulators with different current ratings and packages.