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MAX7490CEE+T
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MAX7490CEE+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low-dropout (LDO) regulator with adjustable output voltage
  • Package: 16-pin TSSOP (Thin Shrink Small Outline Package)
  • Essence: Provides stable and regulated voltage output for various electronic devices
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

  • Input Voltage Range: 2.5V to 6.5V
  • Output Voltage Range: 1.25V to 5.5V
  • Maximum Output Current: 150mA
  • Dropout Voltage: 120mV at 100mA
  • Quiescent Current: 40µA
  • Line Regulation: 0.02%/V
  • Load Regulation: 0.05%/mA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX7490CEE+T has a total of 16 pins, each serving a specific function:

  1. IN: Input voltage pin
  2. EN: Enable pin for turning the regulator on/off
  3. GND: Ground reference pin
  4. FB: Feedback pin for adjusting the output voltage
  5. OUT: Output voltage pin

The remaining pins are power and ground connections.

Functional Features

  • Adjustable Output Voltage: The MAX7490CEE+T allows users to set the desired output voltage within the specified range.
  • Low Dropout Voltage: With a dropout voltage as low as 120mV, the regulator can provide a stable output even when the input voltage is close to the desired output voltage.
  • Low Quiescent Current: The device consumes minimal current when in standby mode, resulting in improved energy efficiency.
  • Overcurrent and Thermal Protection: The regulator incorporates protection mechanisms to prevent damage due to excessive current or temperature.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows compatibility with various power sources. - Adjustable output voltage provides flexibility for different applications. - Low dropout voltage ensures efficient power conversion. - Small package size enables space-saving designs.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Temperature range may restrict usage in extreme environments.

Working Principles

The MAX7490CEE+T is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the feedback voltage (FB pin) with a reference voltage to adjust the pass transistor's resistance, maintaining a stable output voltage. The enable pin (EN) controls the regulator's operation, allowing it to be turned on or off as required.

Detailed Application Field Plans

The MAX7490CEE+T can be used in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable audio players - Wireless communication modules - Embedded systems - IoT (Internet of Things) devices

Its adjustable output voltage and low dropout characteristics make it suitable for applications where a stable and regulated power supply is essential.

Detailed and Complete Alternative Models

  1. LM1117: A popular LDO regulator with adjustable output voltage and higher maximum output current.
  2. LT1763: Another LDO regulator with adjustable output voltage and lower dropout voltage.
  3. TPS7A47: An ultra-low dropout voltage regulator with adjustable output voltage and higher maximum output current.

These alternative models offer similar functionality to the MAX7490CEE+T and can be considered based on specific application requirements.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem MAX7490CEE+T w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of MAX7490CEE+T in technical solutions:

  1. Q: What is the MAX7490CEE+T? A: The MAX7490CEE+T is a high-speed, low-power, quad-channel digital isolator used for signal isolation in various technical applications.

  2. Q: What is the maximum data rate supported by the MAX7490CEE+T? A: The MAX7490CEE+T supports a maximum data rate of 150 Mbps.

  3. Q: Can the MAX7490CEE+T be used for voltage level shifting? A: Yes, the MAX7490CEE+T can be used for voltage level shifting between different logic levels.

  4. Q: What is the operating voltage range of the MAX7490CEE+T? A: The MAX7490CEE+T operates within a voltage range of 2.7V to 5.5V.

  5. Q: Is the MAX7490CEE+T suitable for industrial applications? A: Yes, the MAX7490CEE+T is designed to meet the requirements of industrial applications with its robustness and reliability.

  6. Q: Can I use the MAX7490CEE+T for bidirectional communication? A: No, the MAX7490CEE+T is a unidirectional digital isolator and does not support bidirectional communication.

  7. Q: What is the typical propagation delay of the MAX7490CEE+T? A: The typical propagation delay of the MAX7490CEE+T is around 8 ns.

  8. Q: Does the MAX7490CEE+T provide galvanic isolation? A: Yes, the MAX7490CEE+T provides galvanic isolation between its input and output channels.

  9. Q: Can I use the MAX7490CEE+T in high-temperature environments? A: Yes, the MAX7490CEE+T is specified to operate within a temperature range of -40°C to +125°C, making it suitable for high-temperature environments.

  10. Q: What package does the MAX7490CEE+T come in? A: The MAX7490CEE+T is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.