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L4969URTR

L4969URTR

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low dropout voltage - Adjustable output voltage - Overcurrent and thermal protection - Short-circuit protection - Low quiescent current

Package: SOT-223

Essence: L4969URTR is a power management IC designed for regulating voltage in various electronic devices.

Packaging/Quantity: The L4969URTR is available in a SOT-223 package. The quantity per package may vary depending on the supplier.

Specifications

  • Input Voltage Range: 4.5V to 20V
  • Output Voltage Range: 1.2V to 18V
  • Maximum Output Current: 1.5A
  • Dropout Voltage: 0.6V at 1A
  • Quiescent Current: 75µA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4969URTR has the following pin configuration:

  1. GND (Ground)
  2. Vout (Output Voltage)
  3. Vin (Input Voltage)
  4. ADJ (Adjustment Pin)

Functional Features

  • High Efficiency: The L4969URTR offers high efficiency voltage regulation, minimizing power loss.
  • Adjustable Output Voltage: The output voltage can be adjusted within the specified range to meet different requirements.
  • Overcurrent and Thermal Protection: The IC incorporates overcurrent and thermal protection mechanisms to safeguard against excessive current or temperature.
  • Short-Circuit Protection: It provides short-circuit protection to prevent damage to the device in case of a short circuit.
  • Low Quiescent Current: The IC has low quiescent current consumption, reducing power wastage during standby or idle mode.

Advantages and Disadvantages

Advantages: - High efficiency - Adjustable output voltage - Overcurrent and thermal protection - Short-circuit protection - Low quiescent current

Disadvantages: - Limited maximum output current (1.5A)

Working Principles

The L4969URTR operates as a linear voltage regulator. It regulates the input voltage to a stable output voltage by controlling the internal pass transistor. The adjustable output voltage is set using an external resistor connected to the ADJ pin. The IC continuously monitors the output voltage and adjusts the pass transistor accordingly to maintain the desired voltage level. It also incorporates various protection mechanisms to ensure safe operation under different conditions.

Detailed Application Field Plans

The L4969URTR can be used in various applications, including but not limited to: - Power supplies for consumer electronics - Battery-powered devices - Automotive electronics - Industrial control systems - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the L4969URTR are: - LM317T - LT1083CP - LM1117-ADJ - TPS7A4700

These models provide comparable voltage regulation capabilities and may be suitable alternatives depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L4969URTR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of L4969URTR in technical solutions:

  1. Q: What is the L4969URTR? A: The L4969URTR is a voltage regulator IC that provides a regulated output voltage for various electronic applications.

  2. Q: What is the input voltage range of the L4969URTR? A: The input voltage range of the L4969URTR is typically between 4.5V and 40V.

  3. Q: What is the output voltage range of the L4969URTR? A: The output voltage range of the L4969URTR can be adjusted from 1.2V to 37V.

  4. Q: What is the maximum output current of the L4969URTR? A: The maximum output current of the L4969URTR is typically around 1.5A.

  5. Q: Is the L4969URTR suitable for battery-powered applications? A: Yes, the L4969URTR is suitable for battery-powered applications as it has low quiescent current and supports low dropout voltage.

  6. Q: Can the L4969URTR handle high input voltages? A: Yes, the L4969URTR can handle input voltages up to 40V, making it suitable for a wide range of applications.

  7. Q: Does the L4969URTR have built-in protection features? A: Yes, the L4969URTR includes built-in protection features such as thermal shutdown, current limiting, and short-circuit protection.

  8. Q: Can I use the L4969URTR in automotive applications? A: Yes, the L4969URTR is designed to meet automotive specifications, making it suitable for use in automotive applications.

  9. Q: What is the typical efficiency of the L4969URTR? A: The typical efficiency of the L4969URTR is around 85-90%, depending on the input and output voltage conditions.

  10. Q: Are there any recommended external components for using the L4969URTR? A: Yes, the L4969URTR requires a few external components such as input and output capacitors, resistors for voltage adjustment, and an inductor for certain applications.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.