Спецификации
| Атрибут | Ценность |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | SWIFT™ |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.95V |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 4.5V |
| Current - Output | 4A |
| Frequency - Switching | 200kHz ~ 2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
Обзор
Description
The TPS54478RTER is a high-efficiency, synchronous buck converter designed by Texas Instruments. It is part of the TPS54478 series, optimized for powering processors and other electronic components in computing, networking, and telecom equipment. The device operates with an input voltage range of 2.95V to 6V and delivers an output current of up to 4A, making it suitable for point-of-load applications.
Key features include its adaptive on-time D-CAP™ mode control, which provides fast transient response and simplifies design by eliminating the need for loop compensation. The converter also offers a low output ripple and excellent line and load regulation. With an integrated MOSFET, the TPS54478RTER achieves high efficiency and reduces the need for external components, minimizing board space.
Additionally, the device features protection mechanisms like overcurrent protection, undervoltage lockout, and thermal shutdown, enhancing reliability. Its flexibility, compact design, and robust performance make it an ideal choice for a variety of power management solutions in complex electronic systems.
Key features include its adaptive on-time D-CAP™ mode control, which provides fast transient response and simplifies design by eliminating the need for loop compensation. The converter also offers a low output ripple and excellent line and load regulation. With an integrated MOSFET, the TPS54478RTER achieves high efficiency and reduces the need for external components, minimizing board space.
Additionally, the device features protection mechanisms like overcurrent protection, undervoltage lockout, and thermal shutdown, enhancing reliability. Its flexibility, compact design, and robust performance make it an ideal choice for a variety of power management solutions in complex electronic systems.
Equivalent
The TPS54478RTER is a DC-DC buck converter from Texas Instruments. Equivalent products from other manufacturers include:
1. LMR33630 by Texas Instruments
2. MPM3530 by Monolithic Power Systems
3. LM76002 by Texas Instruments
4. ADP2441 by Analog Devices
5. LT8609 by Analog Devices (formerly Linear Technology)
These alternatives offer similar functionalities but may have different specifications, so it’s important to compare parameters like input voltage range, output current, and efficiency.
1. LMR33630 by Texas Instruments
2. MPM3530 by Monolithic Power Systems
3. LM76002 by Texas Instruments
4. ADP2441 by Analog Devices
5. LT8609 by Analog Devices (formerly Linear Technology)
These alternatives offer similar functionalities but may have different specifications, so it’s important to compare parameters like input voltage range, output current, and efficiency.
Features
The TPS54478RTER is a step-down DC-DC converter from Texas Instruments designed for efficient power management in various applications. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 2.95V to 6V, accommodating diverse power sources.
2. Output Voltage: The device can be programmed for output voltages as low as 0.8V, providing flexibility for different requirements.
3. Output Current: It delivers up to 4A continuous output current, suitable for powering high-performance components.
4. High Efficiency: The converter is optimized for high efficiency, often exceeding 90% under typical conditions.
5. Switching Frequency: It offers a fixed switching frequency of 2.5MHz, allowing for compact passive component design.
6. Soft-Start Feature: The built-in soft-start function minimizes inrush current during startup.
7. Protection Features: It includes overcurrent protection, thermal shutdown, and undervoltage lockout to enhance system reliability.
8. Compact Package: The device comes in a small 16-pin WQFN package, saving board space in compact designs.
These features make the TPS54478RTER suitable for applications in computing, telecommunications, and consumer electronics.
1. Input Voltage Range: It supports a wide input voltage range from 2.95V to 6V, accommodating diverse power sources.
2. Output Voltage: The device can be programmed for output voltages as low as 0.8V, providing flexibility for different requirements.
3. Output Current: It delivers up to 4A continuous output current, suitable for powering high-performance components.
4. High Efficiency: The converter is optimized for high efficiency, often exceeding 90% under typical conditions.
5. Switching Frequency: It offers a fixed switching frequency of 2.5MHz, allowing for compact passive component design.
6. Soft-Start Feature: The built-in soft-start function minimizes inrush current during startup.
7. Protection Features: It includes overcurrent protection, thermal shutdown, and undervoltage lockout to enhance system reliability.
8. Compact Package: The device comes in a small 16-pin WQFN package, saving board space in compact designs.
These features make the TPS54478RTER suitable for applications in computing, telecommunications, and consumer electronics.
Pinout
The TPS54478RTER is a step-down converter integrated circuit from Texas Instruments. It comes in a 16-pin VQFN (RTE) package. Below is a concise description of its pin functions:
1. PGND: Power ground.
2. SW: Switch node, output inductor connection.
3. VIN: Input voltage supply.
4. BOOT: Bootstrap capacitor connection for high-side FET.
5. EN: Enable pin for the device.
6. VFB: Feedback voltage input to set output voltage.
7. COMP: Compensation network connection.
8. SS/TR: Soft start and tracking input.
9. RT/CLK: Resistor timing setting or external clock input.
10. AGND: Analog ground.
11. PWRGD: Power good indicator.
12. VREG5: Internal 5V regulator output.
13. VSENSE: Sense for output voltage.
14. SYNC: Synchronization input.
15. NC: No connect, not internally connected.
16. NC: No connect, not internally connected.
This converter is utilized for efficiently stepping down high input voltages to lower output voltages with precise regulation and minimal external components.
1. PGND: Power ground.
2. SW: Switch node, output inductor connection.
3. VIN: Input voltage supply.
4. BOOT: Bootstrap capacitor connection for high-side FET.
5. EN: Enable pin for the device.
6. VFB: Feedback voltage input to set output voltage.
7. COMP: Compensation network connection.
8. SS/TR: Soft start and tracking input.
9. RT/CLK: Resistor timing setting or external clock input.
10. AGND: Analog ground.
11. PWRGD: Power good indicator.
12. VREG5: Internal 5V regulator output.
13. VSENSE: Sense for output voltage.
14. SYNC: Synchronization input.
15. NC: No connect, not internally connected.
16. NC: No connect, not internally connected.
This converter is utilized for efficiently stepping down high input voltages to lower output voltages with precise regulation and minimal external components.
Manufacturer
The manufacturer of the TPS54478RTER is Texas Instruments (TI). Texas Instruments is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. TI serves a wide range of industries, including automotive, industrial, electronics, and communication technology. The company is known for producing a variety of semiconductors essential for modern electronic devices.
Application
The TPS54478RTER is a DC-DC buck converter used primarily in applications requiring efficient power management and voltage regulation. Key application areas include:
1. Telecommunications: Powers communication devices and networking equipment.
2. Consumer Electronics: Used in devices like TVs, gaming consoles, and set-top boxes.
3. Industrial Equipment: Provides reliable power for industrial automation and control systems.
4. Computing: Supplies power to CPUs, GPUs, and other components in desktops and servers.
5. Automotive Electronics: Supports infotainment systems and other in-car electronics by ensuring stable power delivery.
Its compact design and high efficiency make it suitable for any application requiring reliable voltage conversion in space-constrained environments.
1. Telecommunications: Powers communication devices and networking equipment.
2. Consumer Electronics: Used in devices like TVs, gaming consoles, and set-top boxes.
3. Industrial Equipment: Provides reliable power for industrial automation and control systems.
4. Computing: Supplies power to CPUs, GPUs, and other components in desktops and servers.
5. Automotive Electronics: Supports infotainment systems and other in-car electronics by ensuring stable power delivery.
Its compact design and high efficiency make it suitable for any application requiring reliable voltage conversion in space-constrained environments.
Package
The TPS54478RTER is a power management IC from Texas Instruments, designed for DC-DC buck converters. It comes in a VQFN (Very Thin Quad Flat No-Lead) package with a 16-pin configuration, specifically a 3.5mm x 3.5mm size. The RTER suffix indicates the specific package and pin arrangement details.
