Maxim Integrated
이미지는 예시일 수 있습니다.
제품 세부사항은 사양을 확인하세요.
MAX1722EZK+T
자세히보기 데이터시트

MAX1722EZK+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: Low Quiescent Current, High Efficiency, Small Package Size
  • Package: SOT-23-5
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 1.8V to 3.3V
  • Quiescent Current: 4µA (typical)
  • Output Current: Up to 100mA
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1722EZK+T has a total of 5 pins:

  1. GND: Ground connection.
  2. EN: Enable pin for turning the regulator on/off.
  3. FB: Feedback pin for setting the output voltage.
  4. VIN: Input voltage pin.
  5. VOUT: Output voltage pin.

Functional Features

  • Low quiescent current allows for extended battery life in portable devices.
  • High efficiency helps minimize power dissipation and maximize battery usage.
  • Small package size enables space-constrained designs.
  • Enable pin provides control over the regulator's operation.
  • Feedback pin allows for precise output voltage regulation.

Advantages and Disadvantages

Advantages

  • Low quiescent current extends battery life.
  • High efficiency reduces power consumption.
  • Small package size saves board space.
  • Precise output voltage regulation.
  • Wide input voltage range.

Disadvantages

  • Limited output current capability (up to 100mA).
  • Not suitable for high-power applications.

Working Principles

The MAX1722EZK+T is a voltage regulator IC that takes an input voltage within the range of 2.7V to 5.5V and provides a regulated output voltage between 1.8V and 3.3V. It achieves this by using a step-down (buck) converter topology.

The regulator operates by continuously monitoring the output voltage through the feedback pin (FB). If the output voltage falls below the desired level, the regulator adjusts its internal circuitry to increase the output voltage. Conversely, if the output voltage exceeds the desired level, the regulator reduces the output voltage.

The enable pin (EN) allows the user to turn the regulator on or off as needed. When the enable pin is low, the regulator enters a low-power shutdown mode, reducing power consumption to a minimum.

Detailed Application Field Plans

The MAX1722EZK+T is commonly used in various battery-powered applications, such as:

  1. Portable electronic devices: Smartphones, tablets, portable media players.
  2. Wearable devices: Fitness trackers, smartwatches.
  3. IoT devices: Wireless sensors, smart home devices.
  4. Battery-powered industrial equipment: Remote monitoring systems, data loggers.

Due to its low quiescent current and high efficiency, the MAX1722EZK+T is particularly suitable for applications where power efficiency and extended battery life are crucial.

Detailed and Complete Alternative Models

  • MAX1724EZK+T: Similar specifications and features, but with a higher output current capability of up to 300mA.
  • MAX1726EZK+T: Higher output voltage range (up to 5V) and higher output current capability (up to 500mA).
  • MAX1728EZK+T: Dual-output voltage regulator with two independent channels.

These alternative models provide flexibility in choosing the right voltage regulator based on specific application requirements.

Word count: 446 words

기술 솔루션에 MAX1722EZK+T 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of MAX1722EZK+T in technical solutions:

  1. Q: What is the MAX1722EZK+T? A: The MAX1722EZK+T is a low-power, high-accuracy fuel gauge IC designed for lithium-ion (Li+) batteries.

  2. Q: What is the operating voltage range of the MAX1722EZK+T? A: The operating voltage range is from 2.7V to 4.5V.

  3. Q: How accurate is the fuel gauge measurement provided by the MAX1722EZK+T? A: The MAX1722EZK+T provides an accuracy of ±1% for battery voltage and ±7% for state-of-charge (SOC) estimation.

  4. Q: Can the MAX1722EZK+T be used with different battery chemistries? A: No, the MAX1722EZK+T is specifically designed for use with lithium-ion (Li+) batteries.

  5. Q: Does the MAX1722EZK+T support temperature compensation? A: Yes, it has built-in temperature compensation to ensure accurate SOC estimation across a wide temperature range.

  6. Q: Can the MAX1722EZK+T measure battery current? A: No, the MAX1722EZK+T does not have a built-in current measurement feature. It relies on external circuitry for current sensing.

  7. Q: What communication interface does the MAX1722EZK+T support? A: The MAX1722EZK+T supports I2C interface for easy integration with microcontrollers or other devices.

  8. Q: Is the MAX1722EZK+T suitable for low-power applications? A: Yes, the MAX1722EZK+T is designed for low-power applications and has a typical operating current of 7µA.

  9. Q: Can the MAX1722EZK+T be used in portable devices with limited space? A: Yes, the MAX1722EZK+T comes in a small package (SOT23-6) which makes it suitable for space-constrained applications.

  10. Q: Does the MAX1722EZK+T have any built-in protection features? A: Yes, the MAX1722EZK+T includes overvoltage, undervoltage, and overcurrent protection to safeguard the battery and system.

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