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RT8284NGS
IC REG BUCK ADJUSTABLE 2A 8SOP
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 23V |
| Voltage-Output(Min/Fixed) | 0.923V |
| Voltage-Output(Max) | 20V |
| Current-Output | 2A |
| Frequency-Switching | 340kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The RT8284NGS is a high-efficiency, synchronous step-down DC-DC converter designed for use in various electronic applications requiring stable power output. It is a product of Richtek Technology Corporation and is known for its compact design and efficiency in converting input voltage down to desired lower output levels, making it suitable for use in modern electronic devices, including portable gadgets, industrial equipment, and communication devices.
Key features of the RT8284NGS include a wide input voltage range, high efficiency, and the ability to deliver up to 3A output current. It operates with a fixed switching frequency, which allows for smaller external components, reducing overall system size. The device also incorporates features like over-current protection, thermal shutdown, and soft-start for system reliability and protection. Its small footprint and robust performance make it an ideal choice for designers seeking efficient power management solutions in space-constrained applications.
Key features of the RT8284NGS include a wide input voltage range, high efficiency, and the ability to deliver up to 3A output current. It operates with a fixed switching frequency, which allows for smaller external components, reducing overall system size. The device also incorporates features like over-current protection, thermal shutdown, and soft-start for system reliability and protection. Its small footprint and robust performance make it an ideal choice for designers seeking efficient power management solutions in space-constrained applications.
Features
The RT8284NGS is a high-efficiency, synchronous step-down DC-DC converter designed for applications requiring a compact, reliable power supply solution. Key features include:
1. Wide Input Voltage Range: Supports 4.75V to 24V, accommodating various power sources.
2. Output Voltage: Adjustable output ranging from 0.8V to 15V, suitable for diverse applications.
3. High Efficiency: Achieves up to 95% efficiency, minimizing power loss and improving thermal performance.
4. Output Current: Delivers up to 4A continuous output current, ideal for medium-power applications.
5. Switching Frequency: Operates at a fixed 500kHz frequency, balancing efficiency and component size.
6. Internal MOSFETs: Integrated high-side and low-side MOSFETs enhance efficiency and reduce external component count.
7. Current Mode Control: Provides fast transient response and simple loop compensation.
8. Protection Features: Includes over-current, over-voltage, under-voltage lockout, and thermal shutdown for reliability.
9. Compensation and Soft Start: Internal compensation and programmable soft-start functions for ease of use.
10. Compact Package: Available in a small, thermally-efficient package, making it suitable for space-constrained designs.
These features make the RT8284NGS a versatile component for various electronic applications, including consumer electronics, industrial equipment, and computing devices.
1. Wide Input Voltage Range: Supports 4.75V to 24V, accommodating various power sources.
2. Output Voltage: Adjustable output ranging from 0.8V to 15V, suitable for diverse applications.
3. High Efficiency: Achieves up to 95% efficiency, minimizing power loss and improving thermal performance.
4. Output Current: Delivers up to 4A continuous output current, ideal for medium-power applications.
5. Switching Frequency: Operates at a fixed 500kHz frequency, balancing efficiency and component size.
6. Internal MOSFETs: Integrated high-side and low-side MOSFETs enhance efficiency and reduce external component count.
7. Current Mode Control: Provides fast transient response and simple loop compensation.
8. Protection Features: Includes over-current, over-voltage, under-voltage lockout, and thermal shutdown for reliability.
9. Compensation and Soft Start: Internal compensation and programmable soft-start functions for ease of use.
10. Compact Package: Available in a small, thermally-efficient package, making it suitable for space-constrained designs.
These features make the RT8284NGS a versatile component for various electronic applications, including consumer electronics, industrial equipment, and computing devices.
Package
The RT8284NGS is a surface-mount, SOT-23-6 package type.
Pinout
The RT8284NGS is a step-down (buck) converter IC. It typically comes in an 8-pin package. Here's a brief overview of its pin functions:
1. BOOT: High-side gate drive boost input. Connect a capacitor between this pin and SW.
2. VIN: Power input pin for the converter. Supply voltage is connected here.
3. SW: Switch node. Connect this to the inductor and the cathode of the Schottky diode.
4. GND: Ground pin. Connect to the system ground.
5. FB: Feedback pin. Connect this to an external resistor divider from the output to set the output voltage.
6. EN: Enable control input. A high level turns the converter on, and a low level turns it off.
7. COMP: Compensation node. Connect a series RC network to this pin to compensate the control loop.
8. SS (Soft Start): Soft-start control input. Connect a capacitor to this pin to set the soft-start time.
These functions allow the RT8284NGS to efficiently convert higher input voltages to a lower output voltage suitable for various applications.
1. BOOT: High-side gate drive boost input. Connect a capacitor between this pin and SW.
2. VIN: Power input pin for the converter. Supply voltage is connected here.
3. SW: Switch node. Connect this to the inductor and the cathode of the Schottky diode.
4. GND: Ground pin. Connect to the system ground.
5. FB: Feedback pin. Connect this to an external resistor divider from the output to set the output voltage.
6. EN: Enable control input. A high level turns the converter on, and a low level turns it off.
7. COMP: Compensation node. Connect a series RC network to this pin to compensate the control loop.
8. SS (Soft Start): Soft-start control input. Connect a capacitor to this pin to set the soft-start time.
These functions allow the RT8284NGS to efficiently convert higher input voltages to a lower output voltage suitable for various applications.
Manufacturer
The RT8284NGS is manufactured by Richtek Technology Corporation. Richtek is a leading company in the design and development of analog ICs, specifically focusing on power management solutions. The company is known for delivering innovative and high-performance power management integrated circuits that serve a wide range of applications, including consumer electronics, industrial, automotive, and computing devices. Richtek, headquartered in Taiwan, is recognized for its commitment to quality and reliability, offering products that help optimize power efficiency and performance in electronic devices.
Application
The RT8284NGS is a step-down (buck) DC-DC converter commonly used in applications such as power management for microcontrollers, FPGAs, and ASICs. It is suitable for use in consumer electronics, telecommunications equipment, and industrial systems where efficient voltage regulation is required. Its compact design and efficiency make it ideal for portable devices and embedded systems.
Equivalent
The RT8284NGS is a step-down (buck) DC-DC converter. Equivalent products include:
1. LM2675 series from Texas Instruments
2. MP1584 from Monolithic Power Systems
3. LTC3775 from Analog Devices
4. TPS54331 from Texas Instruments
These alternatives offer similar functionalities in terms of voltage regulation, output current, and input voltage. Be sure to check specific datasheets for exact specifications and compatibility.
1. LM2675 series from Texas Instruments
2. MP1584 from Monolithic Power Systems
3. LTC3775 from Analog Devices
4. TPS54331 from Texas Instruments
These alternatives offer similar functionalities in terms of voltage regulation, output current, and input voltage. Be sure to check specific datasheets for exact specifications and compatibility.
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