TPS54329DDAR

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The TPS54329DDAR is a high performance buck-type switch-mode DC-DC converter. It is a member of the TPS54329 family of converters and is designed to convert a wide input voltage to a regulated output voltage. The TPS54329DDAR features an internal synchronous switch controller, which allows it to achieve high efficiency and fast transient response without an external Schottky diode. The TPS54329DDAR is available in a tiny 2 mm x 2 mm VQFN package and has a wide range of operating temperature. It is suitable for input voltages up to 20V and can provide up to 1.2A output current.

Application Field

The TPS54329DDAR is ideal for applications such as network communications, PCs and notebooks, portable electronic devices, automotive accessories, consumer electronics and industrial supplies. It is also well suited for ultra-low voltage applications, as it can provide a stable and low output voltage of 0.8V with a maximum dropout of 80mV at 1.2A output current. The TPS54329DDAR offers excellent efficiency and excellent power per area, making it the ideal choice for space-constrained applications.

Working Principle

The TPS54329DDAR operates in a buck-type switching mode. A single switch adjusts the duty cycle to regulate the output voltage. The internal freewheeling diode eliminates the need for an external Schottky diode, thus helping to increase efficiency and reduce the overall power dissipation. The wide operating temperature range of -40°C to +85°C improves the system stability and efficiency, making the device suitable for harsh environments. The adjustable Soft-Start feature can eliminate inrush current and overshoot when the device is started.

The TPS54329DDAR comes with integrated protection features such as over-current protection, over-temperature protection, and Over-Voltage protection. It also has a Low Quiescent Current (LQC) mode, which helps to reduce system power consumption when the device is in standby or low current applications. The TPS54329DDAR also has an adjustable output voltage range which enables flexibility in system design.

In summary, the TPS54329DDAR is a high-performance buck-type switch-mode DC-DC converter. It is available in a compact 2mm x 2mm VQFN package, and is suitable for a wide range of input/output voltages and output currents. The TPS54329DDAR offers excellent efficiency, excellent power per area, and high reliability and is the ideal choice for space-constrained applications.

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