TPS62140ARGTR Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	0.9V
Base Part Number:	TPS62140
Supplier Device Package:	16-QFN (3x3)
Package / Case:	16-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	2.5MHz
Current - Output:	2A
Voltage - Output (Max):	6V
Series:	DCS-Control™
Voltage - Input (Max):	17V
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionThe TPS62140ARGTR is a 32 V, 2 A synchronous buck regulator with a low ripple current for automotive applications. It includes a wide input voltage range from 4.5 V to 32 V, making it suitable for 12 V, 24 V and 48 V automotive power architectures. It provides excellent transient response and a low quiescent current of 4-µA in Eco-Mode, allowing it to provide superior efficiency in automotive systems. Additionally, its built-in safety features make it well suited for safety-critical automotive systems. This paper will focus on the applications and working principles of TPS62140ARGTR. ApplicationsThe TPS62140ARGTR is a high-performance buck regulator that is well suited for a wide range of automotive applications. Its wide input voltage range makes it suitable for 12 V, 24 V, and 48 V systems, and its low quiescent current and excellent transient response allow it to provide superior efficiency in automotive systems. Additionally, its built-in safety features make it well suited for safety-critical automotive systems, such as airbag controllers, active suspension systems, and advanced sensor networks.The wide input voltage range also makes it suitable for high-power point of load (P-PoL) applications. It can be used to power large-scale power nodes, such as CPUs, GPUs, PDAs, and FPGAs, without the need for external circuitry, thus simplifing system design. Additionally, its low output ripple current and high conversion efficiency enable it to be used in energy-efficient applications, such as LED lighting systems and RFID readers. Its high-performance and low quiescent current make it ideal for battery-powered applications.Working PrincipleThe TPS62140ARGTR is a synchronous buck regulator that operates by converting the input voltage to the desired output voltage. It uses a power switch and discrete power elements to reduce the input voltage to the desired output. The power switch is then turned off, and the inductor current is re-directed to the output. This generates the desired output voltage, which is then regulated by the integrated voltage loop. The integrated voltage loop compensates for changes in the output voltage due to load or line variations. It does this by continuously adjusting the pulse width modulated (PWM) signal to the power switch, which adjusts the on- and off-times of the switch, thus regulating the output voltage. Additionally, the voltage loop also compensates for temperature changes, and it has a power-saving feature that reduces the switching frequency when small load or large headroom is detected, thus saving power. ConclusionThe TPS62140ARGTR is a high-performance synchronous buck regulator with a wide input voltage range and low quiescent current. It is well suited for a wide range of automotive and high-power point of load applications, such as active suspension systems, RFID readers, and CPUs. Additionally, its built-in safety features make it ideal for safety-critical automotive systems. Its integrated voltage loop compensates for changes in the output voltage due to load or line variations, and it has a power-saving feature that reduces switching frequency when small load or large headroom is detected. Overall, the TPS62140ARGTR is a high-performance buck regulator that is well suited for a wide range of applications. Its wide input voltage range and excellent transient response allow it to provide superior efficiency in automotive systems. Additionally, its integrated voltage loop and power-saving features make it ideal for energy-efficient systems.

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