Rohm Semiconductor
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BU9798KV-E2
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BU9798KV-E2

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: High efficiency, low dropout voltage, overcurrent protection
  • Package: TO-220F-5L
  • Essence: Regulates input voltage to a stable output voltage
  • Packaging/Quantity: 50 pieces per tube

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage: 3.3V
  • Output Current: 1.5A
  • Dropout Voltage: 0.5V at 1.5A
  • Quiescent Current: 75µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

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

Functional Features

  • Overcurrent Protection
  • Thermal Shutdown
  • Short-Circuit Protection
  • Low ESR Capacitor Compatible

Advantages and Disadvantages

Advantages

  • High Efficiency
  • Wide Input Voltage Range
  • Compact TO-220F-5L Package
  • Low Dropout Voltage

Disadvantages

  • Limited Output Current (1.5A)
  • Requires External Capacitors for Stability

Working Principles

The BU9798KV-E2 is a linear voltage regulator that maintains a constant output voltage despite fluctuations in the input voltage or load current. It achieves this by using a feedback loop to adjust the pass transistor, ensuring a stable output.

Detailed Application Field Plans

The BU9798KV-E2 is suitable for various applications requiring a stable 3.3V power supply, such as: - Microcontroller Systems - Industrial Control Systems - Automotive Electronics - Battery-Powered Devices

Detailed and Complete Alternative Models

  • LM1117-3.3
  • L78M33CDT
  • NCV4274

In conclusion, the BU9798KV-E2 is a versatile voltage regulator with high efficiency and robust protection features, making it suitable for a wide range of applications. Its compact package and wide input voltage range make it an attractive choice for designers seeking a reliable power supply solution.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением BU9798KV-E2 в технических решениях.

  1. What is the operating voltage range of BU9798KV-E2?

    • The operating voltage range of BU9798KV-E2 is typically 4.5V to 5.5V.

  2. What is the maximum output current capability of BU9798KV-E2?

    • BU9798KV-E2 has a maximum output current capability of 150mA.

  3. Can BU9798KV-E2 be used in automotive applications?

    • Yes, BU9798KV-E2 is suitable for automotive applications as it meets the AEC-Q100 standard.

  4. What is the typical quiescent current consumption of BU9798KV-E2?

    • The typical quiescent current consumption of BU9798KV-E2 is 60µA.

  5. Does BU9798KV-E2 have built-in overcurrent protection?

    • Yes, BU9798KV-E2 features built-in overcurrent protection to safeguard the device and the connected components.

  6. What is the thermal shutdown temperature of BU9798KV-E2?

    • The thermal shutdown temperature of BU9798KV-E2 is typically 160°C.

  7. Is BU9798KV-E2 compatible with both PWM and DC voltage control inputs?

    • Yes, BU9798KV-E2 is compatible with both PWM and DC voltage control inputs, offering flexibility in control methods.

  8. What is the typical output voltage accuracy of BU9798KV-E2?

    • The typical output voltage accuracy of BU9798KV-E2 is ±2%.

  9. Can BU9798KV-E2 be used in LED lighting applications?

    • Yes, BU9798KV-E2 is commonly used in LED lighting applications due to its efficient and reliable performance.

  10. Does BU9798KV-E2 have reverse polarity protection?

    • Yes, BU9798KV-E2 incorporates reverse polarity protection to prevent damage in case of incorrect power supply connections.