TPS54354PWP

Voltage - Output (Min/Fixed):	1.8V
Base Part Number:	TPS54354
Supplier Device Package:	16-HTSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	250kHz, 500kHz
Current - Output:	3A
Voltage - Output (Max):	--
Series:	SWIFT™
Voltage - Input (Max):	20V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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IntroductionThe TPS54354PWP is a DC-to-DC converter, which is a type of Voltage Regulator, that is commonly found in power management compatibility in systems at the board level. The TPS54354PWP has a wide set of features that make it an ideal Voltage Regulator for applications such as automotive, consumer and communication devices. Each individual device has a maximum output current of 1.5A and a typical efficiency of 93%. The main function of the TPS54354PWP is to convert a higher DC voltage to a lower DC voltage for the purpose of regulating power in the circuit.ApplicationsThe TPS54354PWP is a highly reliable and low-noise DC to DC converter with ultra-low start-up current. Due to its excellent thermal performance and small size, the TPS54354PWP is a suitable Voltage Regulator for applications in automotive and communication devices. It is the perfect voltage regulator for applications that require high efficiency, low EMI and a wide temperature operating range.In automotive components, the TPS54354PWP is widely used in battery management systems (BMS) to regulate the current and voltage output of a battery pack. This allows the battery to run more efficiently while also extending its overall life-cycle. The TPS54354PWP is also used as a voltage regulator in communication devices such as cellular phones. In these applications, the TPS54354PWP helps to reduce battery drain and provide improved signal accuracy to the device. The TPS54354PWP is also used for gate drivers in FETs/NMOS devices such as power field effect transistors (powerFETs). In addition to automotive and communication applications, the TPS54354PWP is commonly used in consumer electronic products such as television sets and the like.Working PrincipleThe TPS54354PWP DC to DC converter works by converting a higher DC voltage to a lower DC voltage. This is done through the use of an internal switching mechanism which regulates the output voltage. The TPS54354PWP is designed to have a maximum switching frequency of 2.5MHz and can be adjusted by the use of internal resistor dividers. The TPS54354PWP is a step-down, or buck-mode, DC to DC converter that has two outputs; one for the main, regulated output, and the other for the auxiliary output, which is used for various additional voltage monitoring functions. The TPS54354PWP has two main components: an inductor and a switch. The inductor is tasked with storing the energy delivered by the input voltage and is connected to the switch which shares an operational connection with the voltage regulator. The switch alternates between creating a closed loop, to providing an open loop to the output, from which the current flow is switched. The current flow of the TPS54354PWP can be adjusted based on the amount of feedback received from the output of the device. The device also has a power-on reset (POR) pin, which is used to ensure that the device is properly reset before each new cycle of operation. The TPS54354PWP also has an integrated short-circuit protection feature, as well as an adjustable under-voltage shutoff, which helps to prevent unwanted current transfer. ConclusionThe TPS54354PWP is a highly efficient and low-noise DC-to-DC converter with ultra-low start-up current. It is the ideal voltage regulator for automotive and communication applications due to its excellent thermal performance, small size and wide temperature range. The main function of the TPS54354PWP is to convert a higher DC voltage to a lower DC voltage for the purpose of regulating power in the circuit. The TPS54354PWP achieves this by utilizing an internal switching mechanism which alternates between creating a closed loop and an open loop, thereby controlling the current flow of the device. Additionally, the TPS54354PWP also includes an integrated power-on reset pin, as well as an adjustable under-voltage shutoff protection feature, to ensure that the device is properly reset and protected from unwanted currents.

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