Richtek USA Inc.
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RT8251GQW
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RT8251GQW

Product Overview

Category

The RT8251GQW belongs to the category of voltage regulator integrated circuits (ICs).

Use

It is used for regulating voltage in electronic devices and systems.

Characteristics

  • High efficiency
  • Low dropout voltage
  • Overcurrent protection
  • Thermal shutdown protection

Package

The RT8251GQW is available in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of RT8251GQW lies in its ability to provide stable and regulated voltage output for various electronic applications.

Packaging/Quantity

The RT8251GQW is typically packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Input Voltage Range: 3V to 36V
  • Output Voltage Range: 0.8V to 24V
  • Maximum Output Current: 3A
  • Dropout Voltage: 300mV at 3A
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The RT8251GQW features a detailed pin configuration with specific functions assigned to each pin, including input voltage, ground, output voltage, feedback, and enable pins.

Functional Features

  • Voltage regulation
  • Overcurrent protection
  • Thermal shutdown protection
  • Adjustable output voltage

Advantages and Disadvantages

Advantages

  • High efficiency
  • Wide input voltage range
  • Overcurrent and thermal protection
  • Compact package size

Disadvantages

  • Limited maximum output current compared to some alternative models
  • Sensitive to external noise in certain applications

Working Principles

The RT8251GQW operates by comparing the actual output voltage to a reference voltage and adjusting the internal circuitry to maintain a stable output voltage within the specified range. It utilizes feedback mechanisms and control circuitry to achieve precise voltage regulation.

Detailed Application Field Plans

The RT8251GQW is suitable for a wide range of applications, including: - Power supplies for consumer electronics - Industrial automation systems - Automotive electronics - LED lighting systems - Battery charging circuits

Detailed and Complete Alternative Models

Some alternative models to the RT8251GQW include: - LM317 - LT1086 - TPS7A4700

These alternatives offer similar voltage regulation capabilities with varying specifications and features to suit different application requirements.

In conclusion, the RT8251GQW is a versatile voltage regulator IC with a wide range of applications and essential features for stable voltage regulation in electronic systems.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací RT8251GQW v technických řešeních

  1. What is the RT8251GQW?

    • The RT8251GQW is a synchronous step-down DC/DC converter with integrated high-side and low-side MOSFETs.

  2. What is the input voltage range of the RT8251GQW?

    • The input voltage range of the RT8251GQW is typically from 4.5V to 18V.

  3. What is the output current capability of the RT8251GQW?

    • The RT8251GQW can deliver up to 6A of continuous output current.

  4. What are the key features of the RT8251GQW?

    • The key features of the RT8251GQW include high efficiency, wide input voltage range, adjustable switching frequency, and over-temperature protection.

  5. What applications is the RT8251GQW suitable for?

    • The RT8251GQW is suitable for various applications such as industrial, consumer electronics, and networking equipment.

  6. What is the typical efficiency of the RT8251GQW?

    • The RT8251GQW typically achieves high efficiency levels, often exceeding 90% under certain operating conditions.

  7. What is the recommended operating temperature range for the RT8251GQW?

    • The RT8251GQW is typically designed to operate within a temperature range of -40°C to 125°C.

  8. Does the RT8251GQW require external compensation components?

    • No, the RT8251GQW features internal compensation, simplifying the design and reducing external component count.

  9. What is the typical switching frequency of the RT8251GQW?

    • The RT8251GQW typically operates at a fixed frequency of 300kHz or 600kHz, but it also supports an adjustable frequency range.

  10. Is there a reference design available for the RT8251GQW?

    • Yes, there are reference designs and application notes available to assist in the implementation of the RT8251GQW in technical solutions.