Maxim Integrated
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MAX1672EEE-T
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MAX1672EEE-T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-Efficiency Step-Up DC-DC Converter
  • Package: 16-pin QSOP (Quarter Small Outline Package)
  • Essence: Provides a regulated output voltage from a low input voltage source
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 1.8V to 5.5V
  • Output Voltage Range: Adjustable from 2.5V to 5.5V
  • Switching Frequency: 500kHz (typical)
  • Maximum Output Current: 600mA
  • Efficiency: Up to 90%
  • Shutdown Current: Less than 1µA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1672EEE-T has a 16-pin QSOP package with the following pin configuration:

  1. SHDN: Shutdown Control Input
  2. GND: Ground
  3. LX: Inductor Connection
  4. FB: Feedback Input
  5. VCC: Supply Voltage Input
  6. SW: Switch Node Connection
  7. PGND: Power Ground
  8. NC: No Connect
  9. NC: No Connect
  10. NC: No Connect
  11. NC: No Connect
  12. NC: No Connect
  13. NC: No Connect
  14. NC: No Connect
  15. NC: No Connect
  16. VOUT: Regulated Output Voltage

Functional Features

  • High-efficiency step-up DC-DC converter
  • Low input voltage range suitable for battery-powered applications
  • Adjustable output voltage allows flexibility in system design
  • Internal synchronous rectification for improved efficiency
  • Overcurrent and thermal shutdown protection
  • Soft-start feature to reduce inrush current

Advantages and Disadvantages

Advantages: - High efficiency results in longer battery life - Wide input voltage range allows compatibility with various power sources - Compact package size saves board space - Internal protection features enhance system reliability

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Non-isolated design may require additional circuitry for isolation purposes

Working Principles

The MAX1672EEE-T is a step-up DC-DC converter that converts a low input voltage to a regulated higher output voltage. It utilizes a switching regulator topology to achieve high efficiency. The internal synchronous rectification minimizes power losses, resulting in improved overall efficiency.

The device operates by controlling the duty cycle of the internal switch to regulate the output voltage. Feedback from the output voltage is compared to a reference voltage, and the duty cycle is adjusted accordingly to maintain the desired output voltage level.

Detailed Application Field Plans

The MAX1672EEE-T is commonly used in various battery-powered applications where a regulated higher voltage is required. Some typical application fields include:

  1. Portable electronic devices
  2. Wireless communication systems
  3. Battery-powered sensors
  4. Handheld instruments
  5. Medical devices

Detailed and Complete Alternative Models

  • MAX1673: Similar specifications and features, but with a different pin configuration (8-pin SOIC package)
  • MAX1674: Higher maximum output current (800mA) and wider input voltage range (0.7V to 5.5V)
  • MAX1675: Lower maximum output current (300mA) but with an integrated power-on reset function

These alternative models provide options based on specific requirements and constraints of the application.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX1672EEE-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX1672EEE-T in technical solutions:

  1. Q: What is the MAX1672EEE-T? A: The MAX1672EEE-T is a step-up DC-DC converter IC designed for low-power applications.

  2. Q: What is the input voltage range of the MAX1672EEE-T? A: The input voltage range of the MAX1672EEE-T is typically between 0.7V and 5.5V.

  3. Q: What is the output voltage range of the MAX1672EEE-T? A: The output voltage range of the MAX1672EEE-T can be adjusted from 2.5V to 12V using external resistors.

  4. Q: What is the maximum output current of the MAX1672EEE-T? A: The maximum output current of the MAX1672EEE-T is 500mA.

  5. Q: Can the MAX1672EEE-T operate with a single-cell Li-ion battery? A: Yes, the MAX1672EEE-T can operate with a single-cell Li-ion battery as it has an input voltage range that supports it.

  6. Q: Does the MAX1672EEE-T have built-in overcurrent protection? A: Yes, the MAX1672EEE-T has built-in overcurrent protection to prevent damage to the IC and connected components.

  7. Q: Can the MAX1672EEE-T be used in portable electronic devices? A: Yes, the MAX1672EEE-T is suitable for use in portable electronic devices due to its low power consumption and small form factor.

  8. Q: Is the MAX1672EEE-T compatible with both analog and digital circuits? A: Yes, the MAX1672EEE-T can be used with both analog and digital circuits as it provides a stable and regulated power supply.

  9. Q: Can the MAX1672EEE-T be used in automotive applications? A: Yes, the MAX1672EEE-T is designed to operate in automotive environments and can handle the necessary voltage fluctuations.

  10. Q: What are some typical applications of the MAX1672EEE-T? A: The MAX1672EEE-T is commonly used in battery-powered devices, portable instruments, wireless communication systems, and other low-power applications.

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