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TPS51117 from TI,Texas Instruments

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TPS51117

Manufacturer: TI

1.8V to 28V Input Sync. Step Down Controller with DCAP?Mode, Optimized for Light Load Efficiency

Partnumber Manufacturer Quantity Availability
TPS51117 TI 102 In Stock

Description and Introduction

1.8V to 28V Input Sync. Step Down Controller with DCAP?Mode, Optimized for Light Load Efficiency The TPS51117 is a synchronous buck controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** 0.8V to 5.5V  
- **Switching Frequency:** Adjustable from 200kHz to 600kHz  
- **Output Current:** Up to 15A (dependent on external components)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 20-pin HTSSOP (PowerPAD™)  

### **Descriptions:**  
The TPS51117 is a high-efficiency synchronous buck controller designed for point-of-load (POL) applications. It supports a wide input voltage range and provides precise output voltage regulation. The device integrates gate drivers for external N-channel MOSFETs and includes features like adjustable soft-start, overcurrent protection, and thermal shutdown.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Integrated MOSFET Drivers** for synchronous rectification  
- **Programmable Soft-Start** to limit inrush current  
- **Overcurrent Protection (OCP)** with hiccup mode  
- **Thermal Shutdown** for overtemperature protection  
- **Power Good (PG) Indicator** for output monitoring  
- **Adjustable Switching Frequency** for optimization of efficiency and component size  

For detailed application notes and design considerations, refer to the official TI datasheet.

Application Scenarios & Design Considerations

1.8V to 28V Input Sync. Step Down Controller with DCAP?Mode, Optimized for Light Load Efficiency

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