Richtek USA Inc.
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RT8258GE
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RT8258GE

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: QFN-16

Essence: The RT8258GE is a voltage regulator IC designed for various applications that require stable and regulated power supply.

Packaging/Quantity: The RT8258GE is available in a QFN-16 package. It is typically sold in reels containing 2500 units.

Specifications

  • Input Voltage Range: 2.5V to 5.5V
  • Output Voltage Range: 0.6V to VIN
  • Maximum Output Current: 1.5A
  • Dropout Voltage: 200mV at 1A
  • Quiescent Current: 50μA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT8258GE has a total of 16 pins, which are assigned specific functions as follows:

  1. EN: Enable pin
  2. FB: Feedback pin
  3. GND: Ground pin
  4. VOUT: Output voltage pin
  5. COMP: Compensation pin
  6. SS: Soft-start pin
  7. PGND: Power ground pin
  8. LX: Switching node pin
  9. BST: Bootstrap capacitor pin
  10. VIN: Input voltage pin
  11. AGND: Analog ground pin
  12. NC: No connection
  13. NC: No connection
  14. NC: No connection
  15. NC: No connection
  16. NC: No connection

Functional Features

  • High Efficiency: The RT8258GE utilizes advanced circuitry to achieve high efficiency, minimizing power losses and maximizing battery life.
  • Low Dropout Voltage: With a dropout voltage as low as 200mV at 1A, the RT8258GE can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
  • Wide Input Voltage Range: The IC can operate within a wide input voltage range of 2.5V to 5.5V, making it suitable for various applications.
  • Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to the input voltage (VIN) using external resistors.
  • Overcurrent Protection: The RT8258GE incorporates overcurrent protection to safeguard the circuit from excessive current flow, preventing damage to the IC and connected components.
  • Thermal Shutdown Protection: In case of excessive temperature rise, the IC automatically shuts down to prevent overheating, ensuring reliable operation.

Advantages and Disadvantages

Advantages: - High efficiency design - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (1.5A)

Working Principles

The RT8258GE operates as a step-down voltage regulator. It takes an input voltage and regulates it to a lower, stable output voltage. The IC uses a switching mechanism to efficiently convert the excess input voltage into regulated output voltage, minimizing power losses.

Detailed Application Field Plans

The RT8258GE is widely used in various electronic devices and systems that require a stable and regulated power supply. Some common application fields include: - Mobile devices - Portable consumer electronics - Battery-powered systems - Industrial equipment - Automotive electronics

Detailed and Complete Alternative Models

  • RT8258GQW: QFN-20 package, adjustable output voltage, higher maximum output current (2A)
  • RT8258GF: SOT-23-6 package, fixed output voltage options, lower maximum output current (1A)
  • RT8258GH: SOP-8 package, adjustable output voltage, higher maximum output current (2.5A)

These alternative models offer different package options, output voltage configurations, and maximum output currents to cater to various application requirements.

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기술 솔루션에 RT8258GE 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of RT8258GE in technical solutions:

  1. Q: What is RT8258GE? A: RT8258GE is a voltage regulator IC (integrated circuit) commonly used in power management applications.

  2. Q: What is the input voltage range supported by RT8258GE? A: The input voltage range supported by RT8258GE is typically between 4.5V and 18V.

  3. Q: What is the output voltage range provided by RT8258GE? A: The output voltage range provided by RT8258GE can be adjusted from 0.6V to 5.5V.

  4. Q: What is the maximum output current that RT8258GE can handle? A: RT8258GE can handle a maximum output current of up to 3A.

  5. Q: Is RT8258GE suitable for battery-powered applications? A: Yes, RT8258GE is suitable for battery-powered applications as it supports a wide input voltage range and has low quiescent current.

  6. Q: Does RT8258GE have built-in protection features? A: Yes, RT8258GE includes various protection features such as over-current protection, thermal shutdown, and under-voltage lockout.

  7. Q: Can RT8258GE operate in a wide temperature range? A: Yes, RT8258GE is designed to operate in a wide temperature range, typically from -40°C to 85°C.

  8. Q: Can RT8258GE be used in automotive applications? A: Yes, RT8258GE is suitable for automotive applications as it meets the necessary requirements for automotive-grade components.

  9. Q: Does RT8258GE require external components for operation? A: Yes, RT8258GE requires a few external components such as input and output capacitors to ensure stable operation.

  10. Q: What are some typical applications of RT8258GE? A: RT8258GE is commonly used in various applications including industrial equipment, consumer electronics, telecommunications, and automotive systems for voltage regulation and power management purposes.

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