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TPS5450DDAR
+物料清單IC REG BUCK ADJUSTABLE 5A 8SOPWR
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製造商德州儀器
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製造商部分 #TPS5450DDAR
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有存貨2693
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規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 5.5V |
| Voltage-Input(Max) | 36V |
| Voltage-Output(Min/Fixed) | 1.221V |
| Voltage-Output(Max) | 31.32V |
| Current-Output | 5A |
| Frequency-Switching | 500kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概述
Description
The TPS5450DDAR is a high-efficiency, step-down DC-DC converter from Texas Instruments. It operates with an input voltage range of 5.5V to 36V and provides a regulated output voltage adjustable from 1.22V to 33V, making it suitable for a wide range of applications. The device can deliver up to 5A of continuous output current, and it features a switching frequency of 500 kHz, which allows for the use of smaller external components and improved power density.
The TPS5450DDAR integrates a high-side MOSFET and employs a pulse-width modulation (PWM) control scheme for efficient power conversion. It includes various protection features such as thermal shutdown, cycle-by-cycle current limit, and undervoltage lockout, ensuring reliable operation under different conditions. The device is housed in an 8-pin SOIC PowerPAD package, which helps in effective thermal management. The TPS5450 is often used in applications like industrial power supplies, consumer electronics, and distributed power systems due to its robust performance and compact size.
The TPS5450DDAR integrates a high-side MOSFET and employs a pulse-width modulation (PWM) control scheme for efficient power conversion. It includes various protection features such as thermal shutdown, cycle-by-cycle current limit, and undervoltage lockout, ensuring reliable operation under different conditions. The device is housed in an 8-pin SOIC PowerPAD package, which helps in effective thermal management. The TPS5450 is often used in applications like industrial power supplies, consumer electronics, and distributed power systems due to its robust performance and compact size.
Equivalent
Equivalent products to the TPS5450DDAR chip, which is a 5A, 5V input step-down buck converter, include:
1. LM2675 from Texas Instruments
2. LM2596 from Texas Instruments
3. L4970A from STMicroelectronics
4. LMR33630 from Texas Instruments
5. AP1509 from Diodes Incorporated
These alternatives offer similar functionalities, input voltage ranges, and current output capabilities. Always check the specific requirements and datasheets to ensure compatibility.
1. LM2675 from Texas Instruments
2. LM2596 from Texas Instruments
3. L4970A from STMicroelectronics
4. LMR33630 from Texas Instruments
5. AP1509 from Diodes Incorporated
These alternatives offer similar functionalities, input voltage ranges, and current output capabilities. Always check the specific requirements and datasheets to ensure compatibility.
Features
The TPS5450DDAR is a versatile DC-DC converter from Texas Instruments offering the following key features:
1. Wide Input Voltage Range: It supports 5.5 V to 36 V, accommodating various power sources.
2. Output Current: Capable of delivering up to 5 A continuous output current.
3. High Efficiency: Features a high-efficiency design, often exceeding 90% under optimal conditions.
4. Adjustable Output Voltage: Provides adjustable output voltage, ranging from 1.22 V to 35 V, for flexibility in application.
5. Integrated Switch: Includes a 110 mΩ MOSFET for efficient power conversion.
6. Switching Frequency: Operates at a 500 kHz fixed frequency, balancing size and performance.
7. Thermal Protection: Incorporates thermal shutdown and current limiting for reliability.
8. Soft Start: Built-in slow start feature to minimize inrush currents.
9. Package: Available in an 8-pin SO PowerPAD™ package for effective heat dissipation.
10. Applications: Suitable for applications like consumer electronics, industrial equipment, and distributed power systems due to its robust features and performance.
1. Wide Input Voltage Range: It supports 5.5 V to 36 V, accommodating various power sources.
2. Output Current: Capable of delivering up to 5 A continuous output current.
3. High Efficiency: Features a high-efficiency design, often exceeding 90% under optimal conditions.
4. Adjustable Output Voltage: Provides adjustable output voltage, ranging from 1.22 V to 35 V, for flexibility in application.
5. Integrated Switch: Includes a 110 mΩ MOSFET for efficient power conversion.
6. Switching Frequency: Operates at a 500 kHz fixed frequency, balancing size and performance.
7. Thermal Protection: Incorporates thermal shutdown and current limiting for reliability.
8. Soft Start: Built-in slow start feature to minimize inrush currents.
9. Package: Available in an 8-pin SO PowerPAD™ package for effective heat dissipation.
10. Applications: Suitable for applications like consumer electronics, industrial equipment, and distributed power systems due to its robust features and performance.
Pinout
The TPS5450DDAR is a step-down (buck) voltage regulator IC manufactured by Texas Instruments. It is part of the SWIFT series and is specifically designed to provide a high-efficiency power conversion with a 5A output current capability.
The TPS5450DDAR comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here are the basic functions of each pin:
1. BOOT: Bootstrap capacitor connection. Provides the gate drive voltage for the high-side MOSFET.
2. VIN: Input voltage supply pin.
3. SS/ENA: Soft-start and enable pin. Used to enable the device and control the soft-start timing.
4. VSENSE: Feedback voltage sense input. Used to regulate the output voltage.
5. COMP: Compensation pin. Connects to the compensation network to stabilize the control loop.
6. GND: Ground pin. Reference point for all signals and power.
7. PH: Phase node. Connects to the inductor and is the switching node of the power conversion.
8. VREG5: Internal 5V regulator output. Used to power internal circuitry and can be used for external loads within limits.
This IC is widely used in applications requiring efficient power management and reliable performance in compact designs.
The TPS5450DDAR comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here are the basic functions of each pin:
1. BOOT: Bootstrap capacitor connection. Provides the gate drive voltage for the high-side MOSFET.
2. VIN: Input voltage supply pin.
3. SS/ENA: Soft-start and enable pin. Used to enable the device and control the soft-start timing.
4. VSENSE: Feedback voltage sense input. Used to regulate the output voltage.
5. COMP: Compensation pin. Connects to the compensation network to stabilize the control loop.
6. GND: Ground pin. Reference point for all signals and power.
7. PH: Phase node. Connects to the inductor and is the switching node of the power conversion.
8. VREG5: Internal 5V regulator output. Used to power internal circuitry and can be used for external loads within limits.
This IC is widely used in applications requiring efficient power management and reliable performance in compact designs.
Manufacturer
The TPS5450DDAR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is well-known for its development and production of analog chips and embedded processors, which are used in a wide array of electronic products. TI serves industries like automotive, industrial, personal electronics, and communications equipment, among others. The company is recognized for its innovation in electronics and has a significant presence globally, providing both hardware and software solutions.
Application
The TPS5450DDAR is a step-down DC-DC converter used in various applications that require efficient power management. Key application areas include:
1. Telecommunications: Power supply for network and communication devices.
2. Consumer Electronics: Power management in devices like TVs, gaming consoles, and set-top boxes.
3. Industrial Equipment: Used in control systems and automation devices.
4. Computing: Power regulation in servers, desktops, and notebook computers.
5. Automotive: Power supply systems for infotainment and other electronics.
6. Embedded Systems: Voltage regulation in microcontroller and FPGA-based designs.
Its versatility in output voltage and current capability makes it suitable for these diverse applications.
1. Telecommunications: Power supply for network and communication devices.
2. Consumer Electronics: Power management in devices like TVs, gaming consoles, and set-top boxes.
3. Industrial Equipment: Used in control systems and automation devices.
4. Computing: Power regulation in servers, desktops, and notebook computers.
5. Automotive: Power supply systems for infotainment and other electronics.
6. Embedded Systems: Voltage regulation in microcontroller and FPGA-based designs.
Its versatility in output voltage and current capability makes it suitable for these diverse applications.
Package
The TPS5450DDAR is a step-down voltage regulator from Texas Instruments, and it comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, specifically labeled as DDA. It is designed for easy handling and efficient heat dissipation in various electronic applications.
