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TPS54427DDAR
IC REG BUCK ADJUSTABLE 4A 8SOPWR
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | SWIFT™, D-CAP2™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 18V |
| Voltage-Output(Min/Fixed) | 0.76V |
| Voltage-Output(Max) | 7V |
| Current-Output | 4A |
| Frequency-Switching | 650kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概述
Description
The TPS54427DDAR is a step-down (buck) converter from Texas Instruments, designed for efficient power management in a variety of applications. It features a wide input voltage range of 4.5V to 18V, making it suitable for systems powered by 5V, 9V, 12V, and 15V power rails. The device can deliver up to 4A of continuous output current, with an adjustable output voltage ranging from 0.76V to 7V.
Key features include high efficiency over a wide load range, due to its low RDS(on) MOSFETs and a constant frequency, current mode control that helps in achieving fast transient response and stable operation. The TPS54427DDAR also includes a fixed switching frequency of 700kHz, which strikes a balance between efficiency and component size, enabling the use of small external components.
Integrated features such as soft start, current limit, and thermal shutdown enhance reliability and protect against fault conditions. Additionally, its small footprint in a 8-pin SO PowerPAD package allows for compact, space-constrained designs. This makes it an ideal choice for applications in consumer electronics, industrial automation, and telecommunications.
Key features include high efficiency over a wide load range, due to its low RDS(on) MOSFETs and a constant frequency, current mode control that helps in achieving fast transient response and stable operation. The TPS54427DDAR also includes a fixed switching frequency of 700kHz, which strikes a balance between efficiency and component size, enabling the use of small external components.
Integrated features such as soft start, current limit, and thermal shutdown enhance reliability and protect against fault conditions. Additionally, its small footprint in a 8-pin SO PowerPAD package allows for compact, space-constrained designs. This makes it an ideal choice for applications in consumer electronics, industrial automation, and telecommunications.
Features
The TPS54427DDAR is a high-efficiency step-down DC-DC converter from Texas Instruments. It features a wide input voltage range of 4.5 V to 18 V, making it suitable for various applications. The device can deliver up to 4 A of continuous output current and supports an adjustable output voltage between 0.76 V and 7 V.
This converter is designed to achieve high efficiency, typically above 90%, by employing a synchronous rectification topology with integrated high-side and low-side MOSFETs. It operates with a fixed switching frequency of 700 kHz, providing a good balance between efficiency and component size.
Key features include a soft-start function to limit inrush current during startup, and current-mode control for fast transient response and ease of loop compensation. It also includes protection features such as overcurrent, overvoltage, and thermal shutdown.
The TPS54427DDAR is available in a thermally enhanced 8-pin SO PowerPAD package, which aids in heat dissipation. Its compact size and high efficiency make it ideal for use in various applications like consumer electronics, industrial equipment, and distributed power systems.
This converter is designed to achieve high efficiency, typically above 90%, by employing a synchronous rectification topology with integrated high-side and low-side MOSFETs. It operates with a fixed switching frequency of 700 kHz, providing a good balance between efficiency and component size.
Key features include a soft-start function to limit inrush current during startup, and current-mode control for fast transient response and ease of loop compensation. It also includes protection features such as overcurrent, overvoltage, and thermal shutdown.
The TPS54427DDAR is available in a thermally enhanced 8-pin SO PowerPAD package, which aids in heat dissipation. Its compact size and high efficiency make it ideal for use in various applications like consumer electronics, industrial equipment, and distributed power systems.
Package
The TPS54427DDAR is a DC-DC buck converter that comes in an 8-pin SO PowerPAD package. This package type helps with efficient thermal management and is suitable for compact circuit designs.
Pinout
The TPS54427DDAR is a step-down DC-DC converter from Texas Instruments. It comes in an 8-pin SO PowerPAD package. The pins and their functions are as follows:
1. BOOT: Bootstrap capacitor connection for the high-side FET driver.
2. VIN: Input voltage supply pin.
3. SW: Switch node, connected to the inductor.
4. GND: Ground reference for the IC.
5. FB: Feedback pin for voltage regulation, connected to the output voltage through a resistor divider.
6. COMP: Compensation pin for the error amplifier, connects to external compensation network.
7. EN: Enable pin to turn the device on or off.
8. SS/TR: Soft-start and tracking pin, can be used to control the soft-start time or track an external voltage.
This converter is designed for ease of use, offering features like adjustable switching frequency, soft-start, and enable control, making it suitable for a wide range of applications in power management.
1. BOOT: Bootstrap capacitor connection for the high-side FET driver.
2. VIN: Input voltage supply pin.
3. SW: Switch node, connected to the inductor.
4. GND: Ground reference for the IC.
5. FB: Feedback pin for voltage regulation, connected to the output voltage through a resistor divider.
6. COMP: Compensation pin for the error amplifier, connects to external compensation network.
7. EN: Enable pin to turn the device on or off.
8. SS/TR: Soft-start and tracking pin, can be used to control the soft-start time or track an external voltage.
This converter is designed for ease of use, offering features like adjustable switching frequency, soft-start, and enable control, making it suitable for a wide range of applications in power management.
Manufacturer
The TPS54427DDAR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits, which are used in a wide array of electronic devices. They are well-known for their innovative solutions in analog and embedded processing, focusing on developing products that help to improve the performance and efficiency of electronic systems. Texas Instruments serves industries such as automotive, consumer electronics, industrial, and communications, and is recognized for its contributions to the advancement of semiconductor technology.
Application
The TPS54427DDAR is a synchronous step-down DC-DC converter commonly used in applications requiring efficient power management. Its primary application areas include powering microcontrollers, FPGAs, DSPs, and ASICs in consumer electronics, telecommunications, industrial automation, and computing systems. It is also suitable for use in battery-powered devices due to its high efficiency and low quiescent current. Its compact design makes it ideal for space-constrained applications.
Equivalent
The TPS54427DDAR is a step-down (buck) converter IC by Texas Instruments. Equivalent products include:
1. LM2596 - A popular buck converter by Texas Instruments.
2. MP1584 - A compact buck converter by Monolithic Power Systems.
3. AP3211 - A low-cost buck converter by Diodes Incorporated.
4. XL4015 - A high-power buck converter by XLSEMI.
These alternatives have similar functionalities but may differ in specific features like input voltage, output current, and efficiency. Always check datasheets for exact specifications and compatibility.
1. LM2596 - A popular buck converter by Texas Instruments.
2. MP1584 - A compact buck converter by Monolithic Power Systems.
3. AP3211 - A low-cost buck converter by Diodes Incorporated.
4. XL4015 - A high-power buck converter by XLSEMI.
These alternatives have similar functionalities but may differ in specific features like input voltage, output current, and efficiency. Always check datasheets for exact specifications and compatibility.
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