RT5797ALGQW

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RT5797ALGQW

IC REG BUCK ADJ 3A 8WDFN

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100% gốc & amp; Mới

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Bảo hành 365 ngày

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Thông số kỹ thuật

Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 2.7V
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 0.6V
Voltage - Output (Max) 3.4V
Current - Output 3A
Frequency - Switching 1MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 8-WFDFN Exposed Pad
Supplier Device Package 8-WDFN (2x2)
Base Product Number RT5797

Tổng quan

Description

The RT5797ALGQW is a highly integrated power management IC designed for battery-powered applications. It features a step-down (buck) converter with high efficiency, typically reaching up to 95%, which is essential for prolonging battery life. The chip operates over a wide input voltage range, making it suitable for various battery chemistries, including Li-ion, Li-polymer, and others.
Key features include adjustable output voltage, low quiescent current for minimal power loss in sleep modes, and various protection mechanisms such as overcurrent, thermal shutdown, and under-voltage lockout. This makes the RT5797ALGQW an excellent choice for portable devices, IoT applications, and other embedded systems requiring efficient power management. Its compact package allows for easy integration into PCB designs, further enhancing its versatility.

Features

The RT5797ALGQW is a high-performance, low dropout (LDO) linear voltage regulator designed for various applications. Key features include:
1. Output Voltage Range: Adjustable output voltage from 0.8V to 5.0V.
2. Low Dropout Voltage: Typically around 200mV at 1A load, allowing efficient operation.
3. High Output Current: Capable of supplying up to 1.5A of output current.
4. Power Supply Rejection Ratio (PSRR): Excellent PSRR performance, enhancing stability and reducing noise.
5. Thermal Protection: Integrated thermal shutdown feature to prevent overheating.
6. Short-Circuit Protection: Safeguards the device and the load in case of a short circuit.
7. Small Package Size: Available in a compact SOP-8 or similar package, suitable for space-constrained designs.
8. Low Quiescent Current: Ensures minimal power loss during operation.
This LDO is ideal for battery-operated devices, portable electronics, and any application requiring a stable power supply with minimal noise.

Package

The RT5797ALGQW is packaged in a QFN (Quad Flat No-lead) format, specifically in a 28-pin configuration. This type of packaging offers a compact design suitable for high-density applications, facilitating efficient thermal performance and electrical connectivity.

Pinout

The RT5797ALGQW is a high-efficiency, step-down (buck) regulator. It comes in a 12-pin QFN (Quad Flat No-leads) package. The primary functions of its pins include:
1. VIN - Input voltage supply.
2. GND - Ground connection.
3. SW - Switch node for the inductor.
4. BOOT - Bootstrap capacitor connection for high-side gate drive.
5. COMP - Compensation network connection for stability.
6. FB - Feedback voltage input for regulation.
7. EN - Enable pin for turning the device on/off.
8. PG - Power good output indicator.
9. SS - Soft-start function pin.
10. ILIM - Current limit setting.
11. NC - No connect, not used.
12. NC - No connect, not used.
This pin configuration allows the RT5797ALGQW to provide efficient voltage regulation in various applications.

Manufacturer

The RT5797ALGQW is manufactured by Richtek Technology Corporation, a company that specializes in designing and developing power management integrated circuits (ICs). Richtek focuses on providing high-performance solutions for a variety of applications, including consumer electronics, automotive, and industrial sectors. Founded in 2000 and headquartered in Taipei, Taiwan, the company is known for its innovation in power management technologies, including voltage regulators, LED drivers, and battery management systems. Richtek aims to deliver efficient and reliable ICs that help improve the performance and energy efficiency of electronic devices.

Application

The RT5797ALGQW is a high-efficiency, synchronous buck converter primarily used in power management applications. Its main application areas include powering CPUs, GPUs, and other processors in laptops, desktops, and servers, as well as in telecommunications and networking equipment. It is also suitable for battery-powered devices, automotive electronics, and industrial automation systems, providing reliable and efficient voltage regulation.

Equivalent

The RT5797ALGQW is a low dropout regulator (LDO) from Richtek. Equivalent products include the LM1117 series from Texas Instruments, MCP1700 from Microchip, and the MIC5205 from Microchip. Always check specific parameters like output current, dropout voltage, and thermal performance for compatibility in your application.

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