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TPS51117PWR from TI,Texas Instruments

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TPS51117PWR

Manufacturer: TI

1.8V to 28V Input Sync. Step Down Controller with DCAP? Mode, Optimized for Light Load Efficiency 14-TSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
TPS51117PWR TI 5000 In Stock

Description and Introduction

1.8V to 28V Input Sync. Step Down Controller with DCAP? Mode, Optimized for Light Load Efficiency 14-TSSOP -40 to 85 The TPS51117PWR is a synchronous buck controller manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** 0.76V to 5.5V  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Output Current:** Up to 20A (with external FETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 16-pin TSSOP (PWR)  

### **Descriptions:**  
The TPS51117PWR is a high-performance synchronous buck controller designed for high-current, low-voltage applications. It supports adjustable output voltage and switching frequency, making it suitable for various power supply designs. The controller integrates features like adaptive on-time control, overcurrent protection, and thermal shutdown.

### **Features:**  
- **Adaptive On-Time Control:** Ensures fast transient response.  
- **Adjustable Switching Frequency:** 300kHz to 1MHz for optimization of efficiency and component size.  
- **Pre-Biased Output Support:** Prevents negative current during startup.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Soft-Start & Soft-Stop:** Reduces inrush current.  
- **Overcurrent & Thermal Protection:** Enhances system reliability.  
- **Low Quiescent Current:** Improves efficiency in light-load conditions.  

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

Application Scenarios & Design Considerations

1.8V to 28V Input Sync. Step Down Controller with DCAP? Mode, Optimized for Light Load Efficiency 14-TSSOP -40 to 85

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