規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 3 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 18V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 17V |
| Current - Output | 3A, 2A |
| Frequency - Switching | 300kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The RT7273GQW is a synchronous step-down DC-DC converter designed by Richtek. It is tailored for applications requiring high efficiency and compact size, making it ideal for consumer electronics, industrial automation, and telecommunications. Operating with an input voltage range of 4.5V to 18V, the RT7273GQW can deliver an output current up to 3A, with a switching frequency of 500kHz. Key features include a built-in high-side and low-side MOSFET, which reduces external component count and enhances efficiency.
The converter also offers a variety of protective features such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown to ensure reliability and safety. Its constant-on-time (COT) control architecture provides fast transient response and simplifies design by eliminating the need for loop compensation. The RT7273GQW comes in a compact WDFN-10L 3x3 package, making it suitable for space-constrained applications. Overall, the RT7273GQW is a versatile and efficient solution for modern power management challenges.
The converter also offers a variety of protective features such as over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown to ensure reliability and safety. Its constant-on-time (COT) control architecture provides fast transient response and simplifies design by eliminating the need for loop compensation. The RT7273GQW comes in a compact WDFN-10L 3x3 package, making it suitable for space-constrained applications. Overall, the RT7273GQW is a versatile and efficient solution for modern power management challenges.
Equivalent
The RT7273GQW is a step-down DC-DC converter by Richtek. Equivalent products include:
1. Texas Instruments TPS54331 - A 3A, 28V, step-down converter.
2. Microchip MCP16311 - A 3A, 30V, step-down regulator.
3. ON Semiconductor NCP1117 - A low dropout voltage regulator.
4. STMicroelectronics L5973D - A 2A, step-down switching regulator.
Always verify specifications and pin compatibility before substitution in your design.
1. Texas Instruments TPS54331 - A 3A, 28V, step-down converter.
2. Microchip MCP16311 - A 3A, 30V, step-down regulator.
3. ON Semiconductor NCP1117 - A low dropout voltage regulator.
4. STMicroelectronics L5973D - A 2A, step-down switching regulator.
Always verify specifications and pin compatibility before substitution in your design.
Features
The RT7273GQW is a synchronous step-down converter. It features a low RDS(ON) internal power MOSFET, which enhances efficiency and performance in power management applications. The device operates with a 4.5V to 18V input voltage range and supports an adjustable output voltage, making it versatile for various applications. Its key features include a high switching frequency of up to 2MHz, providing a compact solution with smaller external components. The device also includes built-in protection mechanisms such as over-current protection, under-voltage lockout, and thermal shutdown to ensure reliability and safety. Additionally, the RT7273GQW offers a soft-start function to prevent inrush current during start-up and a power-good indicator for system monitoring. Overall, it's designed for efficiency, compactness, and reliability in power supply solutions.
Pinout
The RT7273GQW is a high-efficiency, synchronous step-down DC-DC converter. It is typically used in applications requiring efficient power conversion. The RT7273GQW comes in a WDFN-8L 2x2 package, which means it has 8 pins. Here's a brief overview of its pin functions:
1. VIN: Power input pin. Connect to the input voltage supply.
2. SW: Switch node pin. Connect this pin to the inductor.
3. BOOT: Bootstrap pin for high-side gate driver.
4. EN: Enable pin. Used to enable or disable the device.
5. PGOOD: Power good indicator pin. Indicates if the output is within the desired range.
6. GND: Ground pin. Connect to the system ground.
7. FB: Feedback pin. Used to set the output voltage.
8. VCC: Internal regulator output pin. Provides power to internal control circuits.
These pins allow the RT7273GQW to maintain efficient power conversion and regulation in various electronic applications. Always refer to the manufacturer's datasheet for the most accurate and detailed information.
1. VIN: Power input pin. Connect to the input voltage supply.
2. SW: Switch node pin. Connect this pin to the inductor.
3. BOOT: Bootstrap pin for high-side gate driver.
4. EN: Enable pin. Used to enable or disable the device.
5. PGOOD: Power good indicator pin. Indicates if the output is within the desired range.
6. GND: Ground pin. Connect to the system ground.
7. FB: Feedback pin. Used to set the output voltage.
8. VCC: Internal regulator output pin. Provides power to internal control circuits.
These pins allow the RT7273GQW to maintain efficient power conversion and regulation in various electronic applications. Always refer to the manufacturer's datasheet for the most accurate and detailed information.
Manufacturer
The RT7273GQW is manufactured by Richtek Technology Corporation. Richtek is a company that specializes in designing and manufacturing analog integrated circuits, particularly focusing on power management solutions. They offer a wide range of products, including DC-DC converters, battery management systems, and LED drivers, among others. Richtek serves various industries, providing solutions for consumer electronics, computing, industrial applications, and automotive systems. The company's expertise lies in delivering high-performance, efficient, and compact power management ICs that cater to the requirements of modern electronic devices.
Application
The RT7273GQW is a step-down DC-DC converter primarily used in applications requiring efficient power conversion. Key application areas include consumer electronics, computing devices, networking equipment, and industrial automation systems. It's suitable for powering microcontrollers, FPGAs, and other digital ICs due to its ability to deliver a stable output voltage. The device is also used in battery-powered devices due to its high efficiency and low quiescent current, which help extend battery life. Additionally, its compact size makes it ideal for space-constrained applications.
Package
The RT7273GQW is a synchronous step-down converter IC, typically provided in a QFN (Quad Flat No-leads) package. The package type ensures efficient thermal performance and compact size, suitable for high-density electronic applications.