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TPS54550 from TI,Texas Instruments

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TPS54550

Manufacturer: TI

4.5V to 20V Input, 5A Synchronous Step-Down SWIFT?Converter with Low-Side Gate Driver

Partnumber Manufacturer Quantity Availability
TPS54550 TI 1540 In Stock

Description and Introduction

4.5V to 20V Input, 5A Synchronous Step-Down SWIFT?Converter with Low-Side Gate Driver The TPS54550 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:** 0.76V to 7V (adjustable via external resistors)  
- **Output Current:** Up to 5A continuous  
- **Switching Frequency:** Adjustable from 200kHz to 1.6MHz (default 500kHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 20-pin HTSSOP (PowerPAD™)  

### **Descriptions:**  
- The TPS54550 is a high-efficiency, synchronous step-down DC-DC converter with integrated MOSFETs.  
- It supports a wide input voltage range, making it suitable for industrial, automotive, and telecom applications.  
- The device features a fixed-frequency, peak current-mode control architecture for stable operation.  
- It includes protection features such as thermal shutdown, overcurrent protection, and undervoltage lockout (UVLO).  

### **Features:**  
- **Integrated MOSFETs:** Reduces external component count.  
- **Adjustable Frequency:** Allows optimization for efficiency or size.  
- **Soft-Start:** Prevents inrush current during startup.  
- **Power Good (PG) Output:** Monitors output voltage status.  
- **Synchronization Capability:** Can sync to an external clock.  
- **Low Quiescent Current:** Improves efficiency at light loads.  
- **Thermal Shutdown:** Protects against overheating.  

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

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