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LM2793LDX
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LM2793LDX

Product Overview

Category: Integrated Circuit
Use: Voltage Regulator
Characteristics: Low dropout, high accuracy
Package: DFN-6
Essence: Regulating voltage with minimal dropout
Packaging/Quantity: Tape & Reel, 3000 units

Specifications

  • Input Voltage Range: 2.5V to 5.5V
  • Output Voltage Range: 1.2V to 3.3V
  • Dropout Voltage: 150mV at 150mA
  • Load Regulation: 0.01% typical
  • Quiescent Current: 75µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. VIN (Input Voltage)
  2. GND (Ground)
  3. EN (Enable)
  4. NC (No Connection)
  5. FB (Feedback)
  6. VOUT (Output Voltage)

Functional Features

  • Low dropout voltage
  • High accuracy over line and load variations
  • Thermal shutdown protection
  • Short-circuit current limit
  • Low quiescent current

Advantages and Disadvantages

Advantages: - Wide input voltage range - Minimal dropout voltage - Excellent load regulation - Small package size

Disadvantages: - Limited output current capability - Higher cost compared to traditional linear regulators

Working Principles

The LM2793LDX is a low dropout voltage regulator that maintains a stable output voltage even when the input voltage is only slightly higher than the desired output voltage. It achieves this by employing a PNP pass transistor to minimize the dropout voltage.

Detailed Application Field Plans

The LM2793LDX is ideal for applications requiring a regulated voltage supply with minimal dropout, such as battery-powered devices, portable electronics, and IoT devices. Its low quiescent current makes it suitable for power-sensitive applications.

Detailed and Complete Alternative Models

  1. LM2937
  2. LT1763
  3. ADP3338
  4. MAX8881

In conclusion, the LM2793LDX is a versatile voltage regulator with low dropout and high accuracy, making it suitable for various battery-powered and portable electronic applications.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LM2793LDX dalam penyelesaian teknikal

  1. What is the LM2793LDX?

    • The LM2793LDX is a high-efficiency step-down DC-DC converter designed to provide a regulated output voltage from a wide input voltage range.

  2. What is the input voltage range of the LM2793LDX?

    • The LM2793LDX can accept an input voltage range from 4.5V to 60V, making it suitable for various applications.

  3. What is the typical output current capability of the LM2793LDX?

    • The LM2793LDX can deliver up to 3A of continuous output current, making it suitable for powering a wide range of loads.

  4. What are the key features of the LM2793LDX?

    • The LM2793LDX features include high efficiency, integrated synchronous rectification, adjustable soft-start, and thermal shutdown protection.

  5. How can I adjust the output voltage of the LM2793LDX?

    • The output voltage of the LM2793LDX can be adjusted using an external resistor divider connected to the feedback pin.

  6. What are the typical applications of the LM2793LDX?

    • The LM2793LDX is commonly used in automotive, industrial, and telecommunications applications where a regulated power supply is required.

  7. What is the efficiency of the LM2793LDX under typical operating conditions?

    • The LM2793LDX offers high efficiency, typically above 90%, which helps to minimize power dissipation and maximize battery life in portable applications.

  8. Does the LM2793LDX require any external components for operation?

    • The LM2793LDX requires minimal external components, typically including input and output capacitors and an inductor.

  9. Is the LM2793LDX available in different package options?

    • Yes, the LM2793LDX is available in a small outline package (SOIC) and a thermally-enhanced LLP package to suit different application requirements.

  10. What are the recommended operating conditions for the LM2793LDX?

    • The LM2793LDX is designed to operate within a temperature range of -40°C to 125°C and is suitable for use in harsh environments.