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TPS51220ARSNR from TI,Texas Instruments

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TPS51220ARSNR

Manufacturer: TI

Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller 32-QFN -40 to 85

Partnumber Manufacturer Quantity Availability
TPS51220ARSNR TI 2042 In Stock

Description and Introduction

Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller 32-QFN -40 to 85 The TPS51220ARSNR 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:** 0.7V to 5.5V  
- **Switching Frequency:** Adjustable (300kHz to 1.2MHz)  
- **Output Current:** Up to 20A (with external FETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 20-pin VQFN (RSN)  

### **Descriptions:**  
The TPS51220ARSNR 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. It is commonly used in servers, storage systems, and telecom equipment.  

### **Features:**  
- **D-CAP3™ Control Mode:** Enables fast transient response with fewer external components.  
- **Adjustable Soft Start:** Prevents inrush current during startup.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Overcurrent Protection (OCP):** Safeguards against excessive current.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Pre-Bias Startup:** Supports pre-charged output conditions.  
- **External Synchronization:** Allows synchronization with an external clock.  

This information is based on TI's official datasheet for the TPS51220ARSNR.

Application Scenarios & Design Considerations

Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller 32-QFN -40 to 85

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