TPS51221RTVR

Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller 32-WQFN -40 to 85 The TPS51221RTVR is a synchronous buck controller from Texas Instruments (TI).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** 0.76V to 5.5V  
- **Output Current:** Up to 20A (with external FETs)  
- **Switching Frequency:** Adjustable from 200kHz to 1MHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 20-pin WQFN (RTV)  

### **Descriptions:**  
The TPS51221RTVR is a high-performance synchronous buck controller designed for high-current, low-voltage applications. It supports a wide input voltage range and provides precise output voltage regulation.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Integrated Gate Drivers** for N-channel MOSFETs  
- **Programmable Soft-Start**  
- **Overcurrent Protection (OCP)**  
- **Thermal Shutdown Protection**  
- **Pre-Bias Startup Capability**  
- **Supports Forced PWM and Auto-Skip Modes**  

This device is commonly used in point-of-load (POL) regulators, networking equipment, and industrial applications.

Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller 32-WQFN -40 to 85