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TPS54973 from TI,Texas Instruments

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TPS54973

Manufacturer: TI

Low Input Voltage 9A Synchronous Buck Converter with Disabled Sinking During Start Up

Partnumber Manufacturer Quantity Availability
TPS54973 TI 480 In Stock

Description and Introduction

Low Input Voltage 9A Synchronous Buck Converter with Disabled Sinking During Start Up The TPS54973 is a synchronous buck converter manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 18V  
- **Output Voltage Range:** 0.6V to 5.5V (adjustable via resistor divider)  
- **Output Current:** Up to 15A  
- **Switching Frequency:** 200kHz to 2.2MHz (adjustable or synchronized to an external clock)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 40-pin VQFN (5mm × 7mm)  

### **Descriptions:**
- The TPS54973 is a high-efficiency, synchronous step-down DC-DC converter designed for high-current applications.  
- It integrates low-RDS(on) MOSFETs for improved thermal performance and efficiency.  
- The device supports adjustable output voltage and frequency, along with power-good monitoring.  
- It is suitable for point-of-load (POL) power supplies in industrial, telecom, and computing applications.  

### **Features:**
- **Integrated MOSFETs:** Reduces external component count.  
- **Adjustable Frequency:** Allows optimization for efficiency or size.  
- **Precision Reference:** 0.6V ±1% for accurate output regulation.  
- **Power-Good Output:** Monitors output voltage status.  
- **Soft-Start & Tracking:** Configurable to prevent inrush current.  
- **Protection Features:** Overcurrent, overvoltage, undervoltage lockout (UVLO), and thermal shutdown.  
- **Synchronization Capability:** Can sync to an external clock signal.  

For exact details, refer to the official **TI datasheet** for the TPS54973.

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