TPS54231DG4

Voltage - Output (Min/Fixed):	0.8V
Base Part Number:	TPS54231
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	570kHz
Current - Output:	2A
Voltage - Output (Max):	25V
Series:	Eco-Mode™
Voltage - Input (Max):	28V
Voltage - Input (Min):	3.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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< html>< body>< p>TPS54231DG4 is an integrated power solution from Texas Instruments, offering a synchronous buck converter with two outputs, an enable, and an output voltage monitoring feature. This power management part has been designed for a wide range of applications, providing superior efficiency and system cost savings. It also helps to reduce cost and complexity for portable, notebook and server power supplies, as well as automotive cameras, home networking and LED lighting. The TPS54231DG4 is a synchronous buck converter which has two outputs, and a range of features to ensure its performance in any application.

< h2>Applications < p>The TPS54231DG4 synchronous buck converter can be used to supply power to a variety of applications, including laptops, notebooks and servers, automotive power supply systems, home networking equipment and LED lighting. Furthermore, it also provides automotive cameras with power and protects charging systems with load disconnect and overvoltage protection.

< h2>Features < p>The integrated power solution of the TPS54231DG4 has embedded protection and performance features, such as : < ul> < li>Current mode control for excellent line and load regulation. < li>External synchronization for improved efficiency. < li>Selectable output voltage and switching frequency. < li>Programmable soft start. < li>Short-circuit protection. < li>Programmable current limit. < li>Fan control. < li>Output voltage monitoring. < li>Input voltage protection. < h2>Working Principle < p>TPS54231DG4 operates according to the synchronous buck converter circuit. The synchronous buck converter has two components, the switch and the synchronous rectifier. The switch turns on to allow current to flow, then turns off to generate a voltage drop. The synchronous rectifier is a diode, which turns on and allows the current to flow as the voltage drops. The synchronous buck converter is able to charge and discharge the output capacitors, resulting in the generation of a stable, regulated output voltage. The voltage can be adjusted by varying the on time of the switch. The TPS54231DG4 supports both low-side and high-side functions, providing flexibility for a wide range of applications.

< h2>Conclusion < p>The TPS54231DG4 is a highly integrated synchronous buck converter, offering a wide range of features to ensure excellent performance in any application. Its small size, along with its flexible operating range, makes it ideal for a variety of applications, such as automotive camera systems, power protection, and LED lighting. The integrated protection and monitoring features of the TPS54231DG4 ensure it can provide the power supply necessary in any situation.

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