LM2724LD

Product Overview

Category: Integrated Circuit (IC)

Use: LM2724LD is a step-down switching regulator IC designed for use in various power supply applications.

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Low standby current - Over-temperature protection

Package: LM2724LD is available in a small outline package (SOP) with 8 pins.

Essence: The essence of LM2724LD lies in its ability to efficiently convert high input voltages to lower output voltages, making it suitable for a wide range of power supply applications.

Packaging/Quantity: LM2724LD is typically sold in reels containing 2500 units per reel.

Specifications

Input Voltage Range: 4.5V to 36V
Output Voltage Range: 1.23V to 34V
Maximum Output Current: 500mA
Switching Frequency: 550kHz
Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM2724LD IC has the following pin configuration:

VIN: Input voltage pin
GND: Ground pin
FB: Feedback pin for adjusting the output voltage
EN: Enable pin for turning the regulator on/off
SW: Switching node pin
VOUT: Output voltage pin
COMP: Compensation pin for stability control
SS/TR: Soft-start/Tracking pin for controlling start-up behavior

Functional Features

High Efficiency: LM2724LD offers high efficiency due to its synchronous rectification and low dropout voltage.
Wide Input Voltage Range: It can accept input voltages ranging from 4.5V to 36V, making it suitable for various power supply applications.
Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider network.
Low Standby Current: LM2724LD consumes low standby current, reducing power consumption during idle periods.
Over-Temperature Protection: It incorporates over-temperature protection to prevent damage under high temperature conditions.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power dissipation - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Low standby current minimizes power wastage - Over-temperature protection ensures device safety

Disadvantages: - Limited maximum output current of 500mA may not be suitable for high-power applications - Requires additional external components for proper operation

Working Principles

LM2724LD operates as a step-down switching regulator. It uses a pulse-width modulation (PWM) control scheme to regulate the output voltage. The input voltage is chopped at a high frequency by an internal switch, and then filtered and rectified to obtain the desired output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output voltage.

Detailed Application Field Plans

LM2724LD finds applications in various fields, including: 1. Industrial power supplies 2. Automotive electronics 3. Battery-powered systems 4. Telecommunications equipment 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LM2724LD are: 1. LM2576-ADJ 2. LT1370 3. TPS5430

These models provide comparable features and can be considered as alternatives based on specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM2724LD v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LM2724LD in technical solutions:

Q: What is LM2724LD? A: LM2724LD is a step-down DC-DC converter IC designed for use in various technical solutions.
Q: What is the input voltage range of LM2724LD? A: The input voltage range of LM2724LD is typically between 3.6V and 20V.
Q: What is the output voltage range of LM2724LD? A: The output voltage range of LM2724LD can be adjusted from 0.8V to 18V.
Q: What is the maximum output current of LM2724LD? A: The maximum output current of LM2724LD is typically around 1.5A.
Q: Can LM2724LD operate in a wide temperature range? A: Yes, LM2724LD is designed to operate in a wide temperature range, typically from -40°C to 125°C.
Q: Does LM2724LD have built-in protection features? A: Yes, LM2724LD includes built-in protection features such as thermal shutdown, overcurrent protection, and undervoltage lockout.
Q: Can LM2724LD be used in battery-powered applications? A: Yes, LM2724LD is suitable for battery-powered applications due to its low quiescent current and high efficiency.
Q: Is LM2724LD easy to integrate into existing designs? A: Yes, LM2724LD is available in a compact package and requires minimal external components, making it easy to integrate into existing designs.
Q: Can LM2724LD be used in automotive applications? A: Yes, LM2724LD is automotive-grade and can be used in various automotive applications.
Q: Are there any application notes or reference designs available for LM2724LD? A: Yes, Texas Instruments provides application notes and reference designs that can help with the implementation of LM2724LD in different technical solutions.

Please note that these answers are general and may vary depending on specific use cases and requirements.