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TPS56428DDAR
+BOMIC REG BUCK ADJUSTABLE 4A 8SOPWR
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ManufacturerTexas Instruments
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Mfr. Part #TPS56428DDAR
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Package HSOIC (DDA)-8
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In Stock5416
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | D-CAP2™, Eco-Mode™ |
| 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) | 0.6V |
| 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) |
Overview
Description
The TPS56428DDAR is a high-efficiency, synchronous step-down DC-DC converter from Texas Instruments. It is designed for applications requiring a compact, efficient power supply solution. The device operates with a wide input voltage range from 4.5V to 18V, making it suitable for various applications, including consumer electronics, industrial automation, and telecom systems.
Key features include a continuous output current of up to 4A, high efficiency up to 95%, and a fixed frequency of 700 kHz to optimize performance and minimize interference. The TPS56428DDAR also offers internal compensation, enabling a simplified design process without the need for external components for stability.
Additional features include soft-start control for limiting inrush current, power-good output for monitoring the power status, and protection mechanisms like overcurrent, overvoltage, and thermal shutdown for enhanced reliability. Housed in an 8-pin SO PowerPAD package, the TPS56428DDAR provides a compact solution that ensures efficient thermal management, making it ideal for space-constrained applications.
Key features include a continuous output current of up to 4A, high efficiency up to 95%, and a fixed frequency of 700 kHz to optimize performance and minimize interference. The TPS56428DDAR also offers internal compensation, enabling a simplified design process without the need for external components for stability.
Additional features include soft-start control for limiting inrush current, power-good output for monitoring the power status, and protection mechanisms like overcurrent, overvoltage, and thermal shutdown for enhanced reliability. Housed in an 8-pin SO PowerPAD package, the TPS56428DDAR provides a compact solution that ensures efficient thermal management, making it ideal for space-constrained applications.
Equivalent
Equivalent products to the TPS56428DDAR, a step-down DC-DC converter by Texas Instruments, include:
1. LMR33630 by Texas Instruments
2. LM2596 by Texas Instruments
3. MP2315 by Monolithic Power Systems
4. AP63205 by Diodes Incorporated
These alternatives offer similar functions such as step-down voltage conversion and are used in power management applications. Always verify specific electrical characteristics and pin compatibility for your application requirements.
1. LMR33630 by Texas Instruments
2. LM2596 by Texas Instruments
3. MP2315 by Monolithic Power Systems
4. AP63205 by Diodes Incorporated
These alternatives offer similar functions such as step-down voltage conversion and are used in power management applications. Always verify specific electrical characteristics and pin compatibility for your application requirements.
Features
The TPS56428DDAR is a synchronous step-down DC-DC converter. Key features include:
1. Output Current: Supports up to 4 A continuous output current.
2. Input Voltage Range: Operates with an input voltage range of 4.5 V to 18 V, making it suitable for a variety of applications.
3. Efficiency: High efficiency due to synchronous rectification.
4. Switching Frequency: Supports a fixed switching frequency of 560 kHz.
5. Voltage Regulation: Provides a 0.8 V reference voltage with an accuracy of ±1%.
6. Protection Features: Includes overcurrent protection, overvoltage protection, and thermal shutdown to enhance reliability.
7. Soft Start: The device features an adjustable soft-start time, reducing inrush current during startup.
8. Compact Package: Available in a 8-pin SO PowerPAD package, suitable for space-constrained applications.
9. Low Dropout: Offers a low dropout voltage, improving efficiency in battery-powered applications.
10. Load Transient Response: Designed to respond quickly to load transients, maintaining stable output voltage.
These features make the TPS56428DDAR ideal for applications requiring high efficiency, compact size, and robust performance.
1. Output Current: Supports up to 4 A continuous output current.
2. Input Voltage Range: Operates with an input voltage range of 4.5 V to 18 V, making it suitable for a variety of applications.
3. Efficiency: High efficiency due to synchronous rectification.
4. Switching Frequency: Supports a fixed switching frequency of 560 kHz.
5. Voltage Regulation: Provides a 0.8 V reference voltage with an accuracy of ±1%.
6. Protection Features: Includes overcurrent protection, overvoltage protection, and thermal shutdown to enhance reliability.
7. Soft Start: The device features an adjustable soft-start time, reducing inrush current during startup.
8. Compact Package: Available in a 8-pin SO PowerPAD package, suitable for space-constrained applications.
9. Low Dropout: Offers a low dropout voltage, improving efficiency in battery-powered applications.
10. Load Transient Response: Designed to respond quickly to load transients, maintaining stable output voltage.
These features make the TPS56428DDAR ideal for applications requiring high efficiency, compact size, and robust performance.
Pinout
The TPS56428DDAR is a step-down (buck) converter from Texas Instruments. It comes in an 8-pin SO PowerPAD™ package. The main functions of its pins are as follows:
1. VIN (Pin 1): Input voltage supply.
2. EN (Pin 2): Enable pin for the device.
3. SS/TR (Pin 3): Soft-start and tracking pin.
4. FB (Pin 4): Feedback pin, used for setting the output voltage.
5. COMP (Pin 5): Compensation pin for stability.
6. GND (Pin 6): Ground reference.
7. SW (Pin 7): Switch pin, connected to the inductor.
8. BOOT (Pin 8): Bootstrap capacitor connection for the high-side FET driver.
The TPS56428DDAR is designed for applications requiring efficient step-down conversion with a wide input voltage range.
1. VIN (Pin 1): Input voltage supply.
2. EN (Pin 2): Enable pin for the device.
3. SS/TR (Pin 3): Soft-start and tracking pin.
4. FB (Pin 4): Feedback pin, used for setting the output voltage.
5. COMP (Pin 5): Compensation pin for stability.
6. GND (Pin 6): Ground reference.
7. SW (Pin 7): Switch pin, connected to the inductor.
8. BOOT (Pin 8): Bootstrap capacitor connection for the high-side FET driver.
The TPS56428DDAR is designed for applications requiring efficient step-down conversion with a wide input voltage range.
Manufacturer
The TPS56428DDAR is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and produces a wide range of semiconductor and integrated circuit products. They are known for their innovations in analog and embedded processing technologies. TI serves various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is headquartered in Dallas, Texas, and is recognized as one of the largest semiconductor manufacturers in the world.
Application
The TPS56428DDAR is a DC-DC step-down (buck) converter used in various applications requiring efficient power management. Its application areas include:
1. Industrial Automation: Powers control units and sensors.
2. Telecommunications: Supports infrastructure and networking devices.
3. Consumer Electronics: Used in gaming consoles, TVs, and home appliances.
4. Computing: Powers laptops, desktops, and peripherals.
5. Automotive Systems: Supports infotainment and advanced driver-assistance systems (ADAS).
6. Embedded Systems: Provides power for microcontrollers and FPGAs.
Its features, such as high efficiency, wide input voltage range, and compact size, make it suitable for these diverse applications.
1. Industrial Automation: Powers control units and sensors.
2. Telecommunications: Supports infrastructure and networking devices.
3. Consumer Electronics: Used in gaming consoles, TVs, and home appliances.
4. Computing: Powers laptops, desktops, and peripherals.
5. Automotive Systems: Supports infotainment and advanced driver-assistance systems (ADAS).
6. Embedded Systems: Provides power for microcontrollers and FPGAs.
Its features, such as high efficiency, wide input voltage range, and compact size, make it suitable for these diverse applications.
Package
The TPS56428DDAR is packaged in an 8-pin SO PowerPAD package, commonly known as HSOP-8 (Heat-Sink small-outline package). This package features an exposed thermal pad for enhanced heat dissipation, making it suitable for applications requiring efficient thermal performance.
