TPS53124PW

Series:	D-CAP™
Packaging:	Tube
Part Status:	Not For New Designs
Output Type:	Transistor Driver
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Number of Outputs:	2
Output Phases:	1
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 24 V
Frequency - Switching:	--
Duty Cycle (Max):	--
Synchronous Rectifier:	Yes
Clock Sync:	No
Serial Interfaces:	--
Control Features:	Enable
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	28-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	28-TSSOP
Base Part Number:	TPS53124

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The TPS53124PW is a synchronous buck controller with two integrated N-channel power MOSFETs and is intended for powering processors, FPGAs, and other digital circuits. The device features a wide input voltage range of 4.5 V to 32 V support, adjustable output voltage as low as 0.8 V, adjustable current limit, user-controlled synchronization, and thermal limit detection.

Application Field

The TPS53124PW is designed to drive CPUs, GPUs and FPGAs with high efficiency, especially those with long battery life applications and requires very low quiescent current. This device has multiple safety features, such as soft start, thermal shutdown protection, adjustable frequency/duty cycle protection, user-controlled synchronization and output voltage stability, which makes it suitable for a wide range of applications, such as communication infrastructure, automotive, industrial, and consumer applications. It can also be used for applications that require high-efficiency switching, such as extended battery life and power delivery.

Features

• Wide input voltage range of 4.5 V to 32 V
• Adjustable output voltage as low as 0.8 V
• Adjustable current limit
• User-controlled synchronization
• Thermal limit detection
• Soft start and enable control
• Frequency/duty cycle adjustable protection

Working Principle

The TPS53124PW is a buck controller with two integrated N-channel power MOSFETs. When an input voltage is applied, the device senses the input voltage and adjusts the output voltage to the desired level. The MOSFETs act as a switch that turns on and off to regulate the output voltage to the desired level. The device has an adjustable current limit which sets the maximum current that can be drawn from the circuit. The on-board Fault Protection feature monitors the output current and shuts down the device if an overcurrent situation occurs. The device also has a thermal limit detection feature which monitors the die temperature and shuts down the device if it rises above a certain temperature.

The TPS53124PW has a wide input voltage range from 4.5 V to 32 V, enabling it to handle a wide range of input voltage sources. The adjustable output voltage allows the user to set the desired output voltage from 0.8 V to the input voltage. The device also features an adjustable frequency/duty cycle protection, which allows the user to select the desired frequency and duty cycle for the output current.

The TPS53124PW has also been designed with a user-controlled synchronization feature. This feature allows the user to synchronize the controller with an external clock signal, allowing the output voltage to keep up with the changes in the input voltage. The device also has an enable control feature, which allows the user to turn the device on and off remotely.

Overall, the TPS53124PW is an ideal solution for powering CPUs, GPUs, and FPGAs with high efficiency and low quiescent current. The wide input voltage range, adjustable current limit, user-controlled synchronization, and thermal limit detection make this device suitable for a range of applications and provide the necessary protection from over-current and over-temperature.

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