Maxim Integrated
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MAX8902AATA+T
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MAX8902AATA+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Quiescent Current
  • Package: 8-pin Thin SOT23
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 1.2V to 3.3V
  • Maximum Output Current: 500mA
  • Quiescent Current: 30µA (typical)
  • Dropout Voltage: 120mV at 100mA
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX8902AATA+T has the following pin configuration:

  1. EN (Enable): Enable input pin for turning the regulator on/off.
  2. GND (Ground): Ground reference for the IC.
  3. FB (Feedback): Feedback pin for setting the output voltage.
  4. VOUT (Output Voltage): Regulated output voltage.
  5. VIN (Input Voltage): Input voltage supply.
  6. BYP (Bypass): Bypass capacitor connection for improved stability.
  7. PG (Power Good): Power good indicator output.
  8. LX (Switching Node): Switching node for the internal power switch.

Functional Features

  • High efficiency voltage regulation for portable devices.
  • Low quiescent current for extended battery life.
  • Fast transient response for sudden load changes.
  • Overcurrent and thermal protection for safe operation.
  • Power good indicator for system monitoring.
  • Adjustable output voltage for flexibility.

Advantages and Disadvantages

Advantages: - High efficiency results in longer battery life. - Low quiescent current reduces power consumption. - Fast transient response ensures stable operation. - Overcurrent and thermal protection enhance safety. - Adjustable output voltage allows for customization.

Disadvantages: - Limited maximum output current of 500mA. - Dropout voltage of 120mV may affect performance in low voltage applications.

Working Principles

The MAX8902AATA+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 1.2V and 3.3V. It utilizes a high-efficiency switching architecture to achieve low power dissipation and extend battery life. The IC incorporates overcurrent and thermal protection mechanisms to ensure safe operation. The adjustable output voltage feature allows for compatibility with various devices.

Detailed Application Field Plans

The MAX8902AATA+T is widely used in portable electronic devices such as smartphones, tablets, digital cameras, and portable media players. Its compact package and low quiescent current make it suitable for battery-powered applications. The voltage regulation capability ensures stable and reliable operation of the connected devices. The power good indicator output can be utilized for system monitoring and fault detection.

Detailed and Complete Alternative Models

  • MAX8902BATA+T: Similar to MAX8902AATA+T but with a higher maximum output current of 1A.
  • MAX8902CATA+T: Improved version with lower dropout voltage for better performance in low voltage applications.
  • MAX8902DATA+T: Enhanced model with additional features such as adjustable soft-start and power sequencing.

Note: The above alternative models are provided for reference and may have different specifications and pin configurations. It is recommended to consult the respective datasheets for detailed information.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX8902AATA+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX8902AATA+T in technical solutions:

  1. Q: What is the MAX8902AATA+T? A: The MAX8902AATA+T is a highly integrated power management IC (PMIC) designed for use in portable devices.

  2. Q: What are the key features of the MAX8902AATA+T? A: The key features include multiple voltage regulators, battery charger, power switches, and protection circuits.

  3. Q: What is the input voltage range supported by the MAX8902AATA+T? A: The MAX8902AATA+T supports an input voltage range from 2.7V to 5.5V.

  4. Q: How many voltage regulators are there in the MAX8902AATA+T? A: The MAX8902AATA+T has three high-efficiency step-down voltage regulators.

  5. Q: Can the MAX8902AATA+T charge multiple types of batteries? A: Yes, the MAX8902AATA+T supports charging of single-cell lithium-ion/polymer batteries.

  6. Q: Does the MAX8902AATA+T have any protection features? A: Yes, it includes overvoltage protection, undervoltage lockout, thermal shutdown, and short-circuit protection.

  7. Q: What is the maximum charging current supported by the MAX8902AATA+T? A: The MAX8902AATA+T supports a maximum charging current of 1.2A.

  8. Q: Can the MAX8902AATA+T operate in low-power modes? A: Yes, it has a low-power mode that reduces quiescent current to conserve battery power.

  9. Q: Is the MAX8902AATA+T suitable for portable devices with high power requirements? A: Yes, it is designed to handle high power requirements and provides efficient power management.

  10. Q: What are some typical applications of the MAX8902AATA+T? A: The MAX8902AATA+T is commonly used in smartphones, tablets, portable media players, and other battery-powered devices.

Please note that these answers are general and may vary depending on specific use cases and requirements.