STMicroelectronics
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L4969URD
צפה בפרטים DataSheets

L4969URD

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low dropout voltage, high current capability
  • Package: D2PAK (TO-263)
  • Essence: Regulates input voltage to a stable output voltage
  • Packaging/Quantity: Tape and reel, 250 units per reel

Specifications

  • Input Voltage Range: 4.5V to 36V
  • Output Voltage Range: 1.2V to 35V
  • Dropout Voltage: 0.6V at 1A
  • Maximum Output Current: 3A
  • Quiescent Current: 10mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4969URD IC has the following pin configuration:

  1. GND (Ground)
  2. Vout (Output Voltage)
  3. Vin (Input Voltage)
  4. Enable (Enable/Disable Control Pin)
  5. NC (No Connection)

Functional Features

  • Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
  • High current capability allows for powering devices with higher current requirements.
  • Enable pin provides control over the regulator's operation, allowing for power-saving modes.

Advantages and Disadvantages

Advantages: - Wide input voltage range enables versatile applications. - High current capability makes it suitable for various electronic devices. - Low dropout voltage minimizes power dissipation and improves efficiency.

Disadvantages: - Quiescent current of 10mA may be relatively high for low-power applications. - Limited output voltage range compared to some other voltage regulators.

Working Principles

The L4969URD is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output voltage.

Detailed Application Field Plans

The L4969URD is commonly used in various applications, including: 1. Power supplies for industrial equipment 2. Automotive electronics 3. Battery-powered devices 4. Consumer electronics 5. Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the L4969URD are: 1. LM317: Adjustable voltage regulator with similar characteristics. 2. LT1086: Low dropout positive fixed voltage regulator. 3. LM1117: Low dropout voltage regulator available in various fixed output voltages.

These alternative models offer similar functionality and can be suitable replacements depending on specific requirements.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של L4969URD בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of L4969URD in technical solutions:

  1. Q: What is L4969URD? A: L4969URD is a voltage regulator IC designed for use in various technical solutions.

  2. Q: What is the input voltage range of L4969URD? A: The input voltage range of L4969URD is typically between 4.75V and 40V.

  3. Q: What is the output voltage range of L4969URD? A: The output voltage range of L4969URD can be adjusted from 2.5V to 37V.

  4. Q: What is the maximum output current of L4969URD? A: The maximum output current of L4969URD is typically around 1.5A.

  5. Q: Can L4969URD handle both step-up and step-down voltage regulation? A: No, L4969URD is primarily designed for step-down (buck) voltage regulation.

  6. Q: Does L4969URD require any external components for operation? A: Yes, L4969URD requires external capacitors and resistors for stable operation.

  7. Q: Is L4969URD suitable for battery-powered applications? A: Yes, L4969URD is suitable for battery-powered applications due to its low quiescent current.

  8. Q: Can L4969URD handle high temperatures? A: Yes, L4969URD has a wide operating temperature range and can handle high temperatures.

  9. Q: Does L4969URD have built-in protection features? A: Yes, L4969URD includes features like thermal shutdown, current limiting, and short-circuit protection.

  10. Q: What are some typical applications of L4969URD? A: L4969URD is commonly used in various technical solutions such as power supplies, battery chargers, and automotive electronics.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application requirements of L4969URD.