Alpha & Omega Semiconductor Inc.
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AO4862
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AO4862

Product Overview

Category: Integrated Circuit
Use: Power Management IC
Characteristics: High efficiency, compact design
Package: QFN-16
Essence: Regulates power supply
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 36V
  • Output Voltage Range: 0.6V to 24V
  • Maximum Output Current: 3A
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. VIN (Pin 1) - Input voltage
  2. PGND (Pin 2) - Power ground
  3. SW (Pin 3) - Switch node
  4. FB (Pin 4) - Feedback voltage
  5. EN (Pin 5) - Enable control
  6. SS/TRK (Pin 6) - Soft-start/tracking
  7. COMP (Pin 7) - Compensation
  8. VCC (Pin 8) - Control circuitry voltage
  9. BOOT (Pin 9) - Bootstrap capacitor connection
  10. PH (Pin 10) - Phase compensation
  11. LGATE (Pin 11) - Low-side gate driver output
  12. PGND (Pin 12) - Power ground
  13. AGND (Pin 13) - Analog ground
  14. PGND (Pin 14) - Power ground
  15. PGND (Pin 15) - Power ground
  16. PGND (Pin 16) - Power ground

Functional Features

  • Wide input voltage range for versatile applications
  • High efficiency for reduced power loss
  • Integrated protection features (overcurrent, overvoltage, thermal shutdown)
  • Adjustable output voltage and current limit
  • Soft-start and tracking for controlled start-up

Advantages and Disadvantages

Advantages: - Compact package size - High efficiency - Versatile input/output voltage range

Disadvantages: - Higher cost compared to traditional linear regulators - Requires careful PCB layout for optimal performance

Working Principles

The AO4862 is a synchronous step-down DC-DC converter that regulates the output voltage by adjusting the duty cycle of the internal switches. It utilizes pulse-width modulation (PWM) to control the power delivered to the load, ensuring efficient power conversion.

Detailed Application Field Plans

The AO4862 is suitable for various applications including: - Industrial power supplies - Automotive electronics - Telecommunications equipment - LED lighting systems - Battery-powered devices

Detailed and Complete Alternative Models

  1. AO4861 - Similar specifications with different pin configuration
  2. AO4863 - Higher output current capability with similar features
  3. AO4864 - Lower input voltage range with comparable efficiency

Note: The alternative models listed above are provided as examples and may not cover all available alternatives in the market.

This comprehensive entry provides an in-depth understanding of the AO4862, covering its specifications, functional features, application field plans, and alternative models, making it a valuable resource for professionals and enthusiasts in the field of power management ICs.

Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng AO4862 sa mga teknikal na solusyon

  1. What is AO4862?

    • AO4862 is a high-performance, low-dropout linear regulator designed for use in various technical solutions.

  2. What is the input voltage range of AO4862?

    • The input voltage range of AO4862 is typically from 2.7V to 5.5V.

  3. What is the output voltage range of AO4862?

    • The output voltage range of AO4862 is adjustable from 0.8V to 3.3V.

  4. What is the maximum output current of AO4862?

    • AO4862 can provide a maximum output current of up to 500mA.

  5. What are the typical applications of AO4862?

    • AO4862 is commonly used in battery-powered devices, portable equipment, and other applications requiring a regulated power supply.

  6. What is the dropout voltage of AO4862?

    • The dropout voltage of AO4862 is typically around 200mV at full load.

  7. Does AO4862 have built-in thermal shutdown protection?

    • Yes, AO4862 is equipped with built-in thermal shutdown protection to prevent overheating.

  8. Is AO4862 available in different package options?

    • Yes, AO4862 is available in various package options, including SOT-23 and SC70.

  9. Can AO4862 operate in a wide temperature range?

    • Yes, AO4862 is designed to operate in a wide temperature range, typically from -40°C to 85°C.

  10. Is AO4862 suitable for low-power applications?

    • Yes, AO4862 is well-suited for low-power applications due to its low quiescent current and high efficiency.

Feel free to ask if you need further information on any of these questions!