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TPS54425 from TI/BB,Texas Instruments

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TPS54425

Manufacturer: TI/BB

4.5V to 18V Input, 4A Synchronous Step-Down SWIFT?Converter

Partnumber Manufacturer Quantity Availability
TPS54425 TI/BB 58 In Stock

Description and Introduction

4.5V to 18V Input, 4A Synchronous Step-Down SWIFT?Converter The TPS54425 is a synchronous buck converter from Texas Instruments (TI)/Burr-Brown (BB). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 18V  
- **Output Voltage Range:** 0.76V to 5.5V (adjustable via external resistors)  
- **Output Current:** Up to 4A continuous  
- **Switching Frequency:** 300kHz to 2.2MHz (adjustable or synchronized to an external clock)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 3.5mm × 3.5mm QFN (20-pin)  

### **Descriptions:**  
The TPS54425 is a high-efficiency, synchronous step-down DC-DC converter with integrated MOSFETs. It is designed for applications requiring high power density and efficiency, such as point-of-load regulation in industrial, telecom, and computing systems.  

### **Features:**  
- **Integrated MOSFETs:** Reduces external component count.  
- **Adjustable Frequency:** Allows optimization for efficiency or size.  
- **Soft-Start & Pre-Biased Startup:** Prevents inrush current and supports pre-biased outputs.  
- **Power Good Output:** Monitors output voltage status.  
- **Cycle-by-Cycle Current Limit & Thermal Shutdown:** Protects against overloads and overheating.  
- **Adjustable Output Voltage:** Via external resistor divider.  
- **External Synchronization:** Supports synchronization to an external clock.  

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

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