RT8289GSP

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RT8289GSP

+BOM

IC REG BUCK ADJUSTABLE 5A 8SOP

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Specifications

Attribute Value
Package / Case Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 5.5V
Voltage - Input (Max) 32V
Voltage - Output (Min/Fixed) 1.222V
Voltage - Output (Max) 26V
Current - Output 5A
Frequency - Switching 500kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Overview

Description

The RT8289GSP is a synchronous step-down DC-DC converter designed to efficiently step down voltage in power management applications. It features high efficiency and a compact design, making it suitable for various electronic devices where space and power efficiency are critical. The converter operates over a wide input voltage range and provides a stable, adjustable output voltage.
Key features of the RT8289GSP include its ability to operate at a high switching frequency, which allows for smaller external components, reducing the overall size of the power supply. It also incorporates protection features such as over-current protection, short-circuit protection, and thermal shutdown to ensure reliable operation under various conditions.
The RT8289GSP is typically used in applications like consumer electronics, industrial equipment, and communication devices where efficient power conversion is necessary. Its design supports flexibility in a wide array of circuits, catering to engineers seeking reliable performance in compact form factors. Overall, the RT8289GSP is valued for its balance of high efficiency, robust protection features, and ease of integration into electronic systems.

Equivalent

The RT8289GSP is a step-down DC-DC converter. Equivalent products include the LM2596 from Texas Instruments, MP1584 from Monolithic Power Systems, and the XL4015 from XLSEMI. These alternatives offer similar functionality, such as adjustable output voltage and built-in switching capabilities, suitable for applications requiring efficient voltage conversion. Always consult the datasheets to ensure compatibility with your specific requirements.

Features

The RT8289GSP is a high-performance, synchronous step-down DC-DC converter designed for efficient power management. Key features include:
1. Input Voltage Range: It supports a wide input voltage range, typically from 4.5V to 23V, making it versatile for various applications.
2. Output Current: The converter can deliver up to 3A of continuous output current, suitable for powering medium load applications.
3. High Efficiency: With integrated high-side and low-side MOSFETs, the RT8289GSP offers high efficiency, crucial for minimizing power loss and thermal stress.
4. Switching Frequency: It operates at a fixed frequency, usually around 340kHz, optimizing the trade-off between efficiency and component size.
5. Protection Features: It includes several protection mechanisms, such as over-current protection, short-circuit protection, and thermal shutdown, enhancing system reliability.
6. Soft-Start Function: The soft-start feature reduces inrush current during startup, preventing potential damage to components.
7. Compact Package: Available in a small SOP-8 package, it is suitable for space-constrained applications.
These features make the RT8289GSP ideal for use in consumer electronics, communication equipment, and other applications requiring efficient power conversion.

Pinout

The RT8289GSP is a DC-DC step-down converter with a pin count of 8. Its functions are primarily focused on power management. Here's a brief overview of its pin functions:
1. BOOT: Supplies power to the high-side gate driver.
2. VIN: Input voltage supply pin.
3. SW: Switch node connecting the internal switches to the external inductor.
4. GND: Ground reference for the device.
5. FB: Feedback pin for setting the output voltage via a resistor divider.
6. COMP: Compensation pin for stabilizing the control loop, which requires an external RC network.
7. EN: Enable pin to control the operation of the device; a high level turns the converter on.
8. SS: Soft-start control pin that allows you to control the startup timing with an external capacitor.
These pins and their functions allow the RT8289GSP to efficiently convert a higher input voltage to a lower output voltage, making it suitable for various applications requiring regulated power supplies.

Manufacturer

The RT8289GSP is manufactured by Richtek Technology Corporation. Richtek is a Taiwanese company that specializes in the design and production of analog integrated circuits, particularly focusing on power management solutions. Their products are used in a wide range of applications, including consumer electronics, computers, communications, and industrial equipment. Richtek is known for its expertise in developing efficient and reliable power management ICs, which are essential for optimizing the performance and energy efficiency of electronic devices.

Application

The RT8289GSP is a DC-DC step-down converter commonly used in various applications. Its primary use is in power management for electronic systems. Key application areas include:
1. Consumer Electronics: Power supply for devices like set-top boxes, TVs, and gaming consoles.
2. Computer Systems: Voltage regulation for motherboards, graphic cards, and storage devices.
3. Networking Equipment: Used in routers, switches, and other communication devices.
4. Industrial Equipment: Powering control systems and automation devices.
5. Embedded Systems: Providing power to microcontrollers and other components in IoT and embedded applications.
Its efficiency, compact design, and reliable performance make it suitable for these varied applications.

Package

The RT8289GSP is typically available in a SOP-8 (Small Outline Package) configuration, which is a surface-mount package with eight pins. This package type is commonly used for integrated circuits to provide a compact form factor suitable for various electronic applications.

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