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TPS51120 from TI,Texas Instruments

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TPS51120

Manufacturer: TI

Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System Power

Partnumber Manufacturer Quantity Availability
TPS51120 TI 1146 In Stock

Description and Introduction

Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System Power The TPS51120 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:** Adjustable down to 0.8V  
- **Switching Frequency:** 300kHz (fixed)  
- **Output Current:** Supports up to 20A (with external FETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin HTSSOP (PowerPAD™)  

### **Descriptions:**  
- The TPS51120 is a high-efficiency synchronous buck controller designed for point-of-load (POL) applications.  
- It integrates drivers for external N-channel MOSFETs, enabling high-current output.  
- Features voltage-mode control with input feedforward for improved line regulation.  
- Includes soft-start, overcurrent protection (OCP), and thermal shutdown.  

### **Features:**  
- **Voltage-Mode Control:** Ensures stable operation with input feedforward compensation.  
- **Integrated MOSFET Drivers:** Reduces external component count.  
- **Programmable Soft-Start:** Prevents inrush current issues.  
- **Power Good Output:** Monitors output voltage status.  
- **Overcurrent Protection (OCP):** Uses external current sensing.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Adjustable Output Voltage:** Set via external resistor divider.  

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

Application Scenarios & Design Considerations

Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System Power

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