Microsemi Corporation
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LX7172ISE
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LX7172ISE

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: High-performance, low-dropout linear regulator
  • Package: Small Outline Integrated Circuit (SOIC)
  • Essence: Provides stable and regulated output voltage for various electronic devices
  • Packaging/Quantity: Available in reels or tubes, quantity depends on manufacturer's specifications

Specifications

  • Input Voltage Range: 2.5V to 7V
  • Output Voltage Range: 1.25V to 5.5V
  • Output Current: Up to 500mA
  • Dropout Voltage: 300mV at 500mA
  • Quiescent Current: 75µA
  • Line Regulation: ±0.02%/V
  • Load Regulation: ±0.05%/A
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LX7172ISE has a standard 8-pin SOIC package with the following pin configuration:

  1. VOUT: Output Voltage
  2. GND: Ground
  3. VIN: Input Voltage
  4. BYP: Bypass Capacitor Connection
  5. NC: No Connection
  6. NC: No Connection
  7. NC: No Connection
  8. EN: Enable Pin

Functional Features

  • Low dropout voltage ensures efficient power conversion
  • Excellent line and load regulation for stable output voltage
  • Built-in thermal shutdown protection
  • Fast transient response for sudden load changes
  • Low quiescent current for power-saving applications
  • Enable pin for easy on/off control

Advantages and Disadvantages

Advantages: - High-performance voltage regulation - Wide input and output voltage range - Low dropout voltage - Compact package size - Thermal shutdown protection

Disadvantages: - Limited output current capacity (up to 500mA) - Requires external bypass capacitor for optimal performance

Working Principles

The LX7172ISE is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized, allowing efficient power conversion even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The LX7172ISE is commonly used in various electronic devices that require a stable and regulated power supply. Some of its application fields include:

  1. Battery-powered devices: Provides regulated voltage for portable electronics such as smartphones, tablets, and portable gaming consoles.
  2. Industrial equipment: Ensures stable power supply for control systems, sensors, and communication modules.
  3. Automotive electronics: Used in automotive applications like infotainment systems, navigation devices, and engine control units.
  4. Medical devices: Provides reliable power for medical instruments, patient monitoring systems, and diagnostic equipment.

Detailed and Complete Alternative Models

  1. LM1117-ADJ: Adjustable Voltage Regulator, TO-220 package
  2. LT1763-3.3: Low Dropout Regulator, SOT-223 package
  3. MAX603CPA: Precision Voltage Reference, DIP-8 package
  4. TPS79633DCQR: Ultra-Low Noise LDO Regulator, VSSOP-8 package

These alternative models offer similar functionality and can be considered as substitutes for the LX7172ISE depending on specific requirements.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng LX7172ISE sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of LX7172ISE in technical solutions:

  1. Q: What is LX7172ISE? A: LX7172ISE is a specific integrated circuit (IC) designed for voltage level shifting and translation applications.

  2. Q: What is the operating voltage range of LX7172ISE? A: The operating voltage range of LX7172ISE is typically between 2.7V and 5.5V.

  3. Q: Can LX7172ISE be used for bidirectional level shifting? A: No, LX7172ISE is a unidirectional level shifter, meaning it can only shift voltage levels in one direction.

  4. Q: What is the maximum data rate supported by LX7172ISE? A: LX7172ISE can support data rates up to 100 Mbps.

  5. Q: Is LX7172ISE suitable for translating between different logic families? A: Yes, LX7172ISE is commonly used for translating between different logic families such as TTL and CMOS.

  6. Q: Does LX7172ISE require external components for operation? A: Yes, LX7172ISE requires external pull-up resistors and decoupling capacitors for proper operation.

  7. Q: Can LX7172ISE handle high voltage spikes or transients? A: Yes, LX7172ISE has built-in ESD protection and can handle moderate voltage spikes and transients.

  8. Q: What is the typical power consumption of LX7172ISE? A: The typical power consumption of LX7172ISE is around 1.5 mA.

  9. Q: Can LX7172ISE be used in automotive applications? A: Yes, LX7172ISE is suitable for automotive applications as it can operate within the required voltage range and temperature range.

  10. Q: Are there any specific layout considerations for using LX7172ISE? A: Yes, it is recommended to follow the layout guidelines provided in the datasheet to minimize noise and ensure proper performance.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.