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TPS54973PWP from TI,Texas Instruments

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TPS54973PWP

Manufacturer: TI

3.3V Input, 9A Synchronous Buck Converter with Disabled Sinking During Start Up

Partnumber Manufacturer Quantity Availability
TPS54973PWP TI 20 In Stock

Description and Introduction

3.3V Input, 9A Synchronous Buck Converter with Disabled Sinking During Start Up The TPS54973PWP is a synchronous buck converter manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 4.5 V to 17 V  
- **Output Voltage Range:** 0.76 V to 7 V  
- **Output Current:** Up to 15 A  
- **Switching Frequency:** 300 kHz to 2.2 MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 28-pin HTSSOP (PWP)  

### **Description:**  
The TPS54973PWP is a high-efficiency, synchronous step-down DC-DC converter with integrated MOSFETs. It is designed for point-of-load (POL) applications in industrial, communications, and computing systems. The device supports adjustable output voltage and switching frequency, enabling optimized performance for various applications.  

### **Features:**  
- **Integrated MOSFETs:** Reduces external component count.  
- **Adjustable Frequency:** 300 kHz to 2.2 MHz with synchronization capability.  
- **Precision Enable & UVLO:** Ensures reliable startup and shutdown.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Adjustable Soft Start:** Prevents inrush current.  
- **Current Mode Control:** Improves transient response.  
- **Thermal Shutdown Protection:** Safeguards against overheating.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

3.3V Input, 9A Synchronous Buck Converter with Disabled Sinking During Start Up

Alternative Part Number

  • LM27402SQ/NOPB --: TI synchronous buck controller in a different series that can implement a similar step-down conversion with external MOSFETs, offering a flexible alternative when the integrated-switch TPS54973 is unavailable.
  • LTC3851AEGN#PBF --: Wide-input synchronous step-down controller from a different vendor and series, suitable as a functional substitute for a similar point-of-load buck design with external power stage.
  • ISL8117AFRZ --: Wide-Vin synchronous buck controller in a different family, providing a comparable step-down regulation function and a cross-vendor option for the same application.

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