Microchip Technology
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
MIC4574BN
Zobrazit detail DataSheets

MIC4574BN

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: High efficiency, low dropout voltage
  • Package: DIP (Dual Inline Package)
  • Essence: Regulates input voltage to a desired output voltage
  • Packaging/Quantity: 25 pieces per tube

Specifications

  • Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 1.25V to 15V
  • Maximum Output Current: 1.5A
  • Dropout Voltage: 0.6V at 1A
  • Quiescent Current: 120µA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC4574BN has a standard 8-pin DIP package with the following pin configuration:

  1. VOUT: Output Voltage
  2. GND: Ground
  3. VIN: Input Voltage
  4. NC: No Connection
  5. NC: No Connection
  6. NC: No Connection
  7. ADJ: Adjustable Output Voltage
  8. NC: No Connection

Functional Features

  • High efficiency due to low dropout voltage
  • Adjustable output voltage using an external resistor
  • Overcurrent and thermal protection
  • Fast transient response
  • Low quiescent current for power-saving applications

Advantages and Disadvantages

Advantages: - High efficiency results in less power dissipation - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Overcurrent and thermal protection ensure device safety - Fast transient response for stable operation

Disadvantages: - Limited maximum output current of 1.5A - Dropout voltage of 0.6V may affect performance in low voltage applications

Working Principles

The MIC4574BN is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage from the output, adjusting the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The MIC4574BN is commonly used in various applications, including: - Power supplies for industrial and consumer electronics - Battery-powered devices - Automotive electronics - Telecommunications equipment - Audio amplifiers

Detailed and Complete Alternative Models

  1. LM317: Adjustable voltage regulator with higher maximum output current (up to 1.5A) and lower dropout voltage.
  2. LT1083: High-current adjustable voltage regulator with low dropout voltage and thermal protection.
  3. LM7805: Fixed 5V voltage regulator with higher maximum output current (up to 1A) and low dropout voltage.

These alternative models offer similar functionality and can be considered based on specific requirements.

Word count: 314 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MIC4574BN v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MIC4574BN in technical solutions:

  1. Q: What is MIC4574BN? A: MIC4574BN is a high-current, low-dropout voltage regulator IC.

  2. Q: What is the maximum input voltage for MIC4574BN? A: The maximum input voltage for MIC4574BN is typically 45V.

  3. Q: What is the output voltage range of MIC4574BN? A: The output voltage range of MIC4574BN is adjustable from 1.25V to 37V.

  4. Q: What is the maximum output current of MIC4574BN? A: The maximum output current of MIC4574BN is typically 5A.

  5. Q: Does MIC4574BN require an external heat sink? A: It depends on the power dissipation and ambient temperature. In some cases, an external heat sink may be required.

  6. Q: Can MIC4574BN operate with a wide input voltage range? A: Yes, MIC4574BN can operate with a wide input voltage range, making it suitable for various applications.

  7. Q: Is MIC4574BN short-circuit protected? A: Yes, MIC4574BN has built-in short-circuit protection to prevent damage in case of a short circuit.

  8. Q: Can MIC4574BN be used in battery-powered applications? A: Yes, MIC4574BN can be used in battery-powered applications as it has a low dropout voltage and operates efficiently at low input voltages.

  9. Q: Does MIC4574BN have thermal shutdown protection? A: Yes, MIC4574BN has thermal shutdown protection that prevents overheating and protects the IC from damage.

  10. Q: What are some typical applications of MIC4574BN? A: Some typical applications of MIC4574BN include power supplies, battery chargers, LED drivers, and automotive electronics.

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