仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 4.75V ~ 13.2V |
| Frequency - Switching | 300kHz |
| Duty Cycle(Max) | 100% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Enable, Phase Control |
| Operating Temperature | -20°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概要
Description
The RT8105GS is a synchronous buck PWM controller designed for high-performance power regulation applications. It is ideal for use in computing systems, graphics cards, and other electronic devices requiring efficient voltage regulation. The controller supports a wide input voltage range and provides precise output voltage control through its PWM scheme, making it suitable for stepping down high voltages to lower levels required by processors or other components.
Key features of the RT8105GS include its ability to operate at high frequencies, enhancing transient response and minimizing output ripple. It integrates MOSFET drivers, reducing the need for external components and simplifying PCB design. The controller also includes features such as soft-start, over-current protection, and thermal shutdown to enhance reliability and protect the device from damage under adverse conditions.
Overall, the RT8105GS offers a compact and efficient solution for power management in various applications, helping to maintain stable system operation and improve energy efficiency.
Key features of the RT8105GS include its ability to operate at high frequencies, enhancing transient response and minimizing output ripple. It integrates MOSFET drivers, reducing the need for external components and simplifying PCB design. The controller also includes features such as soft-start, over-current protection, and thermal shutdown to enhance reliability and protect the device from damage under adverse conditions.
Overall, the RT8105GS offers a compact and efficient solution for power management in various applications, helping to maintain stable system operation and improve energy efficiency.
Equivalent
The RT8105GS is a PWM controller used for power regulation in computing applications. Equivalent products include:
1. TPS51116 by Texas Instruments
2. ISL95870 by Renesas (formerly Intersil)
3. NCP81253 by ON Semiconductor
These alternatives offer similar functionalities for controlling power in DC-DC converters, often used in motherboard power management. Always verify the specifications against your requirements, as there may be differences in features and performance.
1. TPS51116 by Texas Instruments
2. ISL95870 by Renesas (formerly Intersil)
3. NCP81253 by ON Semiconductor
These alternatives offer similar functionalities for controlling power in DC-DC converters, often used in motherboard power management. Always verify the specifications against your requirements, as there may be differences in features and performance.
Features
The RT8105GS is a PWM step-down DC-DC converter with several notable features. It operates with high efficiency and is designed for driving N-channel MOSFETs, making it suitable for low-voltage applications. The device supports a wide input voltage range and delivers an adjustable output, which is set using an external resistor divider. The RT8105GS also includes features like short-circuit protection, over-temperature protection, and under-voltage lockout, enhancing its reliability and safety.
Additionally, it provides a fast transient response, which is beneficial for handling dynamic load conditions. The converter is capable of operating in pulse-skipping mode at light loads to enhance efficiency. It includes an internal reference voltage and soft-start capabilities to prevent inrush current during startup. The RT8105GS typically comes in a compact package, making it suitable for space-constrained applications. Overall, the RT8105GS is designed for use in a variety of power management applications, particularly where efficiency and compact size are priorities.
Additionally, it provides a fast transient response, which is beneficial for handling dynamic load conditions. The converter is capable of operating in pulse-skipping mode at light loads to enhance efficiency. It includes an internal reference voltage and soft-start capabilities to prevent inrush current during startup. The RT8105GS typically comes in a compact package, making it suitable for space-constrained applications. Overall, the RT8105GS is designed for use in a variety of power management applications, particularly where efficiency and compact size are priorities.
Pinout
The RT8105GS is a PWM controller designed for synchronous step-down dc-dc converters. It typically comes in a small footprint package with a specific pin count and function assignment. While the exact pin count can vary slightly by package type, common configurations include an 8-pin or 10-pin arrangement.
Key functions of the pins include:
1. VCC: Power supply for the controller.
2. GND: Ground reference for the device.
3. PWM: Pulse Width Modulation output to drive the power MOSFETs.
4. COMP (Compensation): Connects to the output of the error amplifier for loop compensation.
5. FB (Feedback): Receives the feedback voltage from the output for regulation.
6. EN (Enable): Enables or disables the controller.
7. SS (Soft Start): Controls the soft-start period to limit inrush current.
8. PGOOD (Power Good): Indicates the status of the output voltage.
These functions may vary slightly depending on the specific version or package of the RT8105GS. For the most accurate information, always refer to the manufacturer's datasheet.
Key functions of the pins include:
1. VCC: Power supply for the controller.
2. GND: Ground reference for the device.
3. PWM: Pulse Width Modulation output to drive the power MOSFETs.
4. COMP (Compensation): Connects to the output of the error amplifier for loop compensation.
5. FB (Feedback): Receives the feedback voltage from the output for regulation.
6. EN (Enable): Enables or disables the controller.
7. SS (Soft Start): Controls the soft-start period to limit inrush current.
8. PGOOD (Power Good): Indicates the status of the output voltage.
These functions may vary slightly depending on the specific version or package of the RT8105GS. For the most accurate information, always refer to the manufacturer's datasheet.
Manufacturer
The RT8105GS is manufactured by Richtek Technology Corporation. Richtek is a company specializing in the design and production of analog integrated circuits, particularly in power management solutions. The company is known for providing a wide range of products, including voltage regulators, battery management solutions, LED drivers, and various power management ICs. Richtek's products are widely used in consumer electronics, computers, communications, and industrial applications.
Application
The RT8105GS is a voltage mode PWM controller often used in power management applications. Its primary application areas include:
1. DC-DC Converters: It's utilized in step-down (buck) converters for efficient voltage regulation.
2. Motherboards: Serves in desktop computer motherboards for CPU core power supply.
3. Graphics Cards: Powers GPU cores by providing stable voltage regulation.
4. Communication Devices: Employed in network and telecom equipment for power conversion efficiency.
5. Consumer Electronics: Used in various gadgets for power management solutions.
6. Industrial Equipment: Provides reliable power regulation in industrial automation systems.
These applications leverage its efficiency, flexibility, and reliability in power management.
1. DC-DC Converters: It's utilized in step-down (buck) converters for efficient voltage regulation.
2. Motherboards: Serves in desktop computer motherboards for CPU core power supply.
3. Graphics Cards: Powers GPU cores by providing stable voltage regulation.
4. Communication Devices: Employed in network and telecom equipment for power conversion efficiency.
5. Consumer Electronics: Used in various gadgets for power management solutions.
6. Industrial Equipment: Provides reliable power regulation in industrial automation systems.
These applications leverage its efficiency, flexibility, and reliability in power management.
Package
The RT8105GS is typically available in a SOP-8 (Small Outline Package) type, which is a surface-mounted package with eight pins. This package type is commonly used for integrated circuits to offer a balance between size and thermal performance.
