RT8279GSP

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RT8279GSP

IC REG BUCK ADJ 5A 8SOP

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規格

Part Status Obsolete
Base Product Number RT8279
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 5.5V
Voltage - Input (Max) 36V
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
Package 8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package 8-SOP-EP
Packaging Cut Tape (CT), Tape & Reel (TR)

概述

Description

The RT8279GSP is a high-efficiency, step-down DC-DC converter designed by Richtek Technology. It is primarily used in applications that require efficient power management, such as LCD monitors, set-top boxes, and other consumer electronics. The converter operates with a wide input voltage range and can deliver up to 2A of continuous output current, making it suitable for various power supply needs.
Key features of the RT8279GSP include its fixed switching frequency, which contributes to reduced output ripple and improved efficiency. The device also offers protection features like over-current protection (OCP), thermal shutdown, and under-voltage lockout (UVLO) to ensure reliable operation under various conditions.
The RT8279GSP is known for its compact package, which facilitates easy integration into space-constrained designs. Additionally, its high switching frequency allows the use of small external components, further reducing the overall footprint of the power supply circuit.
Overall, the RT8279GSP is valued for its robustness, efficiency, and flexibility, making it a popular choice in the development of power solutions for modern electronic devices.

Features

The RT8279GSP is a step-down (buck) switching regulator designed for efficient power conversion. Key features include:
1. Wide Input Voltage Range: It supports an input range typically from 4.5V to 36V, making it versatile for various applications.
2. High Efficiency: The regulator maintains high efficiency across a range of loads due to its current-mode operation.
3. Adjustable Output: The output voltage can be set through an external resistor divider, providing flexibility in applications.
4. Current Mode Control: This feature provides fast transient response and simplifies loop compensation.
5. Built-in Protection: It includes over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown to enhance reliability.
6. Compact Package: The RT8279GSP is available in a small package, making it suitable for space-constrained designs.
7. Fixed Frequency Operation: It operates at a fixed frequency, reducing electromagnetic interference (EMI) concerns.
Overall, the RT8279GSP is ideal for applications requiring a reliable, efficient, and compact step-down regulator, such as industrial and consumer electronics.

Package

The RT8279GSP is typically available in an 8-pin SOP (Small Outline Package) type. This package is commonly used in electronic components for its compact size and ease of mounting on PCBs.

Pinout

The RT8279GSP is a step-down (buck) DC-DC converter. It typically comes in an 8-pin SOP (Small Outline Package). Here is a brief overview of its pin functions:
1. VIN: Input voltage supply pin. Connects to the input power source.
2. GND: Ground pin.
3. SW: Switch node pin. Connects to the inductor.
4. BOOT: Bootstrap pin. Provides the gate drive voltage for the high-side MOSFET.
5. EN: Enable pin. Used to enable or disable the converter.
6. COMP: Compensation pin. Connects to the compensation network to stabilize the control loop.
7. FB: Feedback pin. Senses the output voltage for regulation.
8. SS: Soft-start pin. Used to set the soft-start time to prevent inrush current during startup.
These pins collectively enable the RT8279GSP to efficiently convert a higher input voltage to a lower output voltage, suitable for a wide range of applications.

Manufacturer

The RT8279GSP is manufactured by Richtek Technology Corporation. Richtek is a company that specializes in the design and manufacturing of power management integrated circuits (ICs). Founded in 1998 and headquartered in Hsinchu, Taiwan, Richtek provides solutions for various applications including consumer electronics, computers, communications, and automotive industries. They focus on developing innovative power management solutions to enhance the performance and efficiency of electronic devices.

Application

The RT8279GSP is a high-efficiency, synchronous step-down DC-DC converter primarily used in applications requiring efficient power management. Key application areas include distributed power systems, battery-powered devices, and point-of-load regulation for systems like set-top boxes, portable electronics, and industrial equipment. Its ability to provide a stable output from a wide input range makes it suitable for various electronic devices that need reliable voltage regulation.

Equivalent

The RT8279GSP is a step-down (buck) DC-DC converter. Equivalent products from other manufacturers could include the LM2596 by Texas Instruments, the MP1584 by Monolithic Power Systems, and the MC34063 by ON Semiconductor. These components offer similar functionalities in terms of voltage regulation and current output, but specific features and performance may vary, so it’s important to verify compatibility with your application's requirements.

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