Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| 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) | 32.04V |
| Current-Output | 3A |
| Frequency-Switching | 500kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
Overview
Description
The TPS5430DDA is a DC-DC step-down (buck) converter from Texas Instruments, designed to convert a higher input voltage to a lower output voltage with high efficiency. It supports input voltages ranging from 5.5V to 36V and can deliver up to 3A of output current. The device integrates a high-side MOSFET and operates at a fixed switching frequency of 500 kHz, which allows for compact power supply designs with fewer external components.
Key features include thermal shutdown, cycle-by-cycle current limit protection, and excellent line and load regulation. The TPS5430DDA also offers adjustable output voltage options via an external resistor divider, and it supports continuous current mode operation for better performance under varying load conditions. It is commonly used in applications such as industrial and consumer electronics, where efficient power conversion and robust performance are essential. The device is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with a DDA suffix, designed for easy handling and integration into various electronic systems.
Key features include thermal shutdown, cycle-by-cycle current limit protection, and excellent line and load regulation. The TPS5430DDA also offers adjustable output voltage options via an external resistor divider, and it supports continuous current mode operation for better performance under varying load conditions. It is commonly used in applications such as industrial and consumer electronics, where efficient power conversion and robust performance are essential. The device is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with a DDA suffix, designed for easy handling and integration into various electronic systems.
Equivalent
The TPS5430DDA is a DC-DC buck converter by Texas Instruments. Equivalent products from other manufacturers that offer similar functionalities include:
1. LM2596 by Texas Instruments and several other manufacturers, offering 3A output.
2. MP1584 by Monolithic Power Systems, offering 3A output.
3. LMR33630 by Texas Instruments, offering 3A output.
4. LM2675 by Texas Instruments, also a 3A buck converter.
When selecting an equivalent, ensure compatibility in terms of input voltage, output current, and switching frequency.
1. LM2596 by Texas Instruments and several other manufacturers, offering 3A output.
2. MP1584 by Monolithic Power Systems, offering 3A output.
3. LMR33630 by Texas Instruments, offering 3A output.
4. LM2675 by Texas Instruments, also a 3A buck converter.
When selecting an equivalent, ensure compatibility in terms of input voltage, output current, and switching frequency.
Features
The TPS5430DDA is a step-down (buck) DC-DC converter designed by Texas Instruments. It features a wide input voltage range from 5.5V to 36V, making it suitable for various applications. The device delivers up to 3A of continuous output current, and its output voltage can be adjusted via an external resistor divider. It operates with a high efficiency due to a fixed-frequency PWM control, and it includes an internal compensation to simplify design. Other notable features include a high-side MOSFET with a 0.12Ω on-resistance, thermal shutdown protection, current mode control for fast transient response, and an adjustable switching frequency. The TPS5430DDA also offers integrated soft start and frequency foldback to enhance performance under start-up and overload conditions. Additionally, it comes in a thermally enhanced 8-pin SO PowerPAD™ package, which aids in heat dissipation. The device is well-suited for applications in consumer electronics, telecom, industrial systems, and any other situations where efficient power conversion is required.
Pinout
The TPS5430DDA is a DC-DC step-down (buck) converter from Texas Instruments. It comes in an 8-pin SO PowerPAD (DDA) package. Here is a brief overview of its pin functions:
1. VIN (Pin 1): Input voltage supply, connects to the power source.
2. GND (Pin 2): Ground connection for the device.
3. EN (Pin 3): Enable pin, used to turn the device on or off.
4. SS/ENA (Pin 4): Soft-start and enable input.
5. VSENSE (Pin 5): Feedback input from the output voltage for regulation.
6. BOOT (Pin 6): Bootstrap input for the high-side MOSFET driver.
7. OUT (Pin 7): Output voltage pin.
8. PH (Pin 8): Switch node pin, connected to the inductor.
The TPS5430DDA operates over a wide input voltage range and is designed for efficiency in power management applications.
1. VIN (Pin 1): Input voltage supply, connects to the power source.
2. GND (Pin 2): Ground connection for the device.
3. EN (Pin 3): Enable pin, used to turn the device on or off.
4. SS/ENA (Pin 4): Soft-start and enable input.
5. VSENSE (Pin 5): Feedback input from the output voltage for regulation.
6. BOOT (Pin 6): Bootstrap input for the high-side MOSFET driver.
7. OUT (Pin 7): Output voltage pin.
8. PH (Pin 8): Switch node pin, connected to the inductor.
The TPS5430DDA operates over a wide input voltage range and is designed for efficiency in power management applications.
Manufacturer
The TPS5430DDA is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits, embedded processors, and analog technologies. The company serves various industries such as automotive, industrial, consumer electronics, communications equipment, and enterprise systems. TI is known for its innovation in semiconductor design and manufacturing, providing solutions that include power management, signal chain, and microcontroller products.
Application
The TPS5430DDA is a step-down DC-DC converter designed for applications requiring high efficiency and compact size. Common application areas include industrial automation systems, where it powers microcontrollers and sensors; telecommunications equipment, for stable voltage supply to communication circuits; automotive systems, providing power to infotainment or electronic control units; and consumer electronics, maintaining power efficiency in devices like set-top boxes and gaming consoles. Its robust performance in managing input voltage variations makes it suitable for distributed power systems and other applications requiring reliable power conversion.
Package
The TPS5430DDA is a step-down DC-DC converter from Texas Instruments, and it is available in an 8-pin SO PowerPAD (DDA) package. This package type allows for enhanced thermal performance due to the exposed thermal pad on the underside, which can be soldered to the PCB for better heat dissipation.
