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TPS54340DDAR
IC REG BUCK ADJ 3.5A 8SOPWR
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | Eco-Mode™ |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 42V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 41.1V |
| Current-Output | 3.5A |
| Frequency-Switching | 100kHz ~ 2.5MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概述
Description
The TPS54340DDAR is a step-down (buck) DC-DC converter from Texas Instruments. It is part of the TPS54340 series, designed for applications requiring efficient power conversion with a high degree of integration. The device can handle an input voltage range from 4.5V to 42V and provides an adjustable output voltage as low as 0.8V, with up to 3.5A continuous output current.
Key features include an integrated high-side MOSFET and an adjustable switching frequency ranging from 100 kHz to 2.5 MHz, allowing for flexible optimization between efficiency and component size. The device also offers internal loop compensation, cycle-by-cycle current limit, thermal shutdown, and an enable pin for easy power sequencing.
Its high-efficiency capability makes it suitable for use in a wide range of applications, including industrial control systems, consumer electronics, and telecom equipment. The TPS54340DDAR comes in an 8-pin SO PowerPAD package, which aids in heat dissipation and compact design, making it optimal for space-constrained applications.
Key features include an integrated high-side MOSFET and an adjustable switching frequency ranging from 100 kHz to 2.5 MHz, allowing for flexible optimization between efficiency and component size. The device also offers internal loop compensation, cycle-by-cycle current limit, thermal shutdown, and an enable pin for easy power sequencing.
Its high-efficiency capability makes it suitable for use in a wide range of applications, including industrial control systems, consumer electronics, and telecom equipment. The TPS54340DDAR comes in an 8-pin SO PowerPAD package, which aids in heat dissipation and compact design, making it optimal for space-constrained applications.
Features
The TPS54340DDAR is a step-down (buck) converter from Texas Instruments, designed for DC-DC power applications. It features a wide input voltage range of 4.5V to 42V, making it suitable for various industrial, automotive, and consumer applications. The device can deliver up to 3.5A of continuous output current, with an adjustable output voltage as low as 0.8V.
Key features include high efficiency, typically over 90%, and a switching frequency adjustable from 100 kHz to 2.5 MHz, allowing for optimization between efficiency and component size. The TPS54340 also includes an enable pin for power sequencing, an internal soft-start for controlled turn-on, and a power good output to indicate the status of the output voltage.
Protection features of the TPS54340 include cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout. It also supports Eco-mode for improved efficiency at light loads. The device is available in a thermally enhanced SO-8 package, which aids in heat dissipation. Overall, the TPS54340DDAR is a versatile and robust solution for step-down power conversion needs.
Key features include high efficiency, typically over 90%, and a switching frequency adjustable from 100 kHz to 2.5 MHz, allowing for optimization between efficiency and component size. The TPS54340 also includes an enable pin for power sequencing, an internal soft-start for controlled turn-on, and a power good output to indicate the status of the output voltage.
Protection features of the TPS54340 include cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout. It also supports Eco-mode for improved efficiency at light loads. The device is available in a thermally enhanced SO-8 package, which aids in heat dissipation. Overall, the TPS54340DDAR is a versatile and robust solution for step-down power conversion needs.
Package
The TPS54340DDAR is a step-down converter from Texas Instruments, and it comes in an 8-pin SO PowerPAD package. This package type is designed to enhance thermal performance by allowing heat dissipation through a metal pad on the underside of the package, which can be soldered directly to the PCB.
Pinout
The TPS54340DDAR is a 3.5 A, 42 V step-down (buck) converter with an integrated high-side MOSFET, designed by Texas Instruments. It comes in an 8-pin SO PowerPAD package. Here's a brief overview of its pin functions:
1. BOOT: Bootstrapped capacitor connection for high-side MOSFET gate drive.
2. VIN: Input voltage supply pin; supports 4.5 V to 42 V.
3. EN: Enable pin for device control; a high level on this pin enables the device.
4. SS/TR: Soft-start and tracking pin; controls the ramp-up of the output voltage.
5. GND: Ground connection.
6. VSENSE: Feedback pin for output voltage regulation; connects to the resistive divider from the output.
7. COMP: Compensation pin; used for stability and transient response optimization.
8. SW: Switch pin; connected to the output inductor.
The TPS54340 is used in applications requiring step-down voltage conversion with high efficiency and compact size, making it suitable for consumer electronics, industrial applications, and distributed power systems.
1. BOOT: Bootstrapped capacitor connection for high-side MOSFET gate drive.
2. VIN: Input voltage supply pin; supports 4.5 V to 42 V.
3. EN: Enable pin for device control; a high level on this pin enables the device.
4. SS/TR: Soft-start and tracking pin; controls the ramp-up of the output voltage.
5. GND: Ground connection.
6. VSENSE: Feedback pin for output voltage regulation; connects to the resistive divider from the output.
7. COMP: Compensation pin; used for stability and transient response optimization.
8. SW: Switch pin; connected to the output inductor.
The TPS54340 is used in applications requiring step-down voltage conversion with high efficiency and compact size, making it suitable for consumer electronics, industrial applications, and distributed power systems.
Manufacturer
The TPS54340DDAR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company headquartered in Dallas, Texas, USA. It is known for designing and manufacturing semiconductors and various integrated circuits, which are used in a wide range of electronic applications. TI's products are integral to modern technology, facilitating innovation in industries such as automotive, consumer electronics, industrial equipment, and communications. The company has a strong reputation for its analog and embedded processing products, which are essential for creating efficient and reliable electronic systems.
Application
The TPS54340DDAR is a step-down DC-DC converter used in applications requiring efficient power management. Its application areas include industrial power systems, telecommunications equipment, automotive power supplies, consumer electronics, and any systems requiring robust voltage regulation. It is particularly suitable for powering microcontrollers, DSPs, FPGAs, and other digital circuits that demand stable power supply.
Equivalent
The TPS54340DDAR is a 3.5A, 42V step-down (buck) DC-DC converter from Texas Instruments. Equivalent products include:
1. LM2678 by Texas Instruments
2. LM2576HV by Texas Instruments
3. LMR16030 by Texas Instruments
4. LT8609 by Analog Devices
5. MP1584 by Monolithic Power Systems
These alternatives offer similar functionalities but may differ in specifications like input voltage range, output current, and additional features. Always compare datasheets to ensure compatibility with your specific application needs.
1. LM2678 by Texas Instruments
2. LM2576HV by Texas Instruments
3. LMR16030 by Texas Instruments
4. LT8609 by Analog Devices
5. MP1584 by Monolithic Power Systems
These alternatives offer similar functionalities but may differ in specifications like input voltage range, output current, and additional features. Always compare datasheets to ensure compatibility with your specific application needs.
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