TPS54352PWPRG4

Voltage - Output (Min/Fixed):	1.2V
Base Part Number:	TPS54352
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:	Tape & Reel (TR)

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TPS54352PWPRG4 Application Field and Working PrincipleDC-DC converters are a type of voltage regulators used to convert a voltage from one level to another, typically from higher voltage to lower voltage. The TPS54352PWPRG4 is a synchronous current mode step-down DC-DC converter, primarily used for applications which require high current output and low noise, such as LED lighting and power supplies. The device integrates a fully-integrated high-side and low-side n-channel MOSFET devices, as well as voltage and current feedback loops to regulate output voltage with a programmed accuracy. The device has an adjustable output voltage range from 0.6V to 5V, and an output current capability of up to 5A. Additionally, a wide input voltage range of 3.3V to 24V and an efficient switching frequency of up to 1MHz allow for a wide range of applications.The TPS54352PWPRG4 includes several features and protection modules which provide greater flexibility and reduce power loss in a circuit. This includes under voltage lock out (UVLO), pulse-by-pulse current limit (PPL), thermal shutdown (TSD), overvoltage protection (OVP), and adjustable soft-start (SS). The UVLO prevents damage to the device by prohibiting the output voltage when the input voltage is too low, while TSD and OVP protect the device from excessive power losses caused by high temperatures and shorts circuits in the circuit. The adjustable Soft-Start allows users to customize the time required to reach the requested output voltage, preventing unwanted voltage spikes and protecting the supply. The TPS54352PWPRG4 also includes two unique features - Power On Reset (POR) and a Synchronization Pin (SYNC). POR allows the device to reset all functions after a given timeframe, while SYNC allows the user to control the switching frequency of the device remotely. In summary, the TPS54352PWPRG4 is an efficient and flexible DC-DC synchronous current mode switching regulator which is used for high current output applications such as LED lighting and power supplies. It includes several integrated safety functions such as UVLO, OVP, PPL, TSD and adjustable SS which provide greater flexibility and reduce power losses. The POR and SYNC functions allow users to control the device in a remote and safe manner.

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