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RT8279GSP
+БОМIC REG BUCK ADJ 5A 8SOP
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ПроизводительКомпания Richtek USA Inc.
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Мфр. Часть #RT8279GSP
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Лист данных RT8279GSP DataSheet
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В наличии7220
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
| 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) |
Обзор
Description
The device delivers an adjustable output voltage, providing flexibility for different application requirements, with a maximum output current typically around 3A. It features a constant on-time (COT) control architecture, which allows for fast transient response and minimal external component count, enhancing its ease of use.
The RT8279GSP also includes various protection features such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown to ensure reliability and safety. Its compact packaging, along with its efficiency and performance, makes it ideal for use in consumer electronics, communication devices, and industrial equipment where space and energy efficiency are critical.
Equivalent
Features
The RT8279GSP includes an internal compensation network, simplifying the design process, and features an internal soft-start function to prevent inrush current during startup. It also offers protection features like over-current protection, thermal shutdown, and short-circuit protection, ensuring reliable operation under various conditions. The converter is available in a space-saving package, making it ideal for applications with limited board space. Its efficiency and robustness make it suitable for use in consumer electronics, industrial applications, and distributed power systems.
Pinout
1. VIN: Input voltage supply pin.
2. GND: Ground pin.
3. SW: Switch output pin, connected to the inductor.
4. BOOT: Bootstrap supply for the high-side gate driver.
5. EN: Enable pin for the converter, used to turn the device on or off.
6. COMP: Compensation pin for external compensation network to stabilize the control loop.
7. FB: Feedback pin to set the output voltage through a resistor divider network.
8. RT: Frequency setting pin for the internal oscillator.
The RT8279GSP is highly efficient, ideally used for applications requiring a stable power supply from a higher voltage source to a lower voltage load, such as in portable or battery-powered devices.
Manufacturer
Application
Package
Frequently Asked Questions
Q: What is the input voltage range for the RT8279GSP?
A: The device supports a wide input voltage range from 5.5V to 36V, suitable for industrial and automotive power systems.
Q: What is the maximum output current of this buck converter?
A: The RT8279GSP can deliver up to 5A continuous output current with an adjustable output voltage from 1.222V to 26V.
Q: Does the RT8279GSP include a synchronous rectifier?
A: No, this device does not feature a synchronous rectifier; it uses an external Schottky diode for the freewheeling path.
Q: What is the switching frequency of the RT8279GSP?
A: It operates at a fixed switching frequency of 500kHz, balancing efficiency and component size.
Q: What is the operating temperature range for this component?
A: The RT8279GSP is rated for an ambient temperature range of -40°C to +85°C, making it suitable for general-purpose applications.
Q: What package does the RT8279GSP come in?
A: It is housed in an 8-SOIC with exposed pad (8-SOP-EP) for improved thermal dissipation in surface-mount designs.