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TPS51217DSCR from TI,Texas Instruments

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TPS51217DSCR

Manufacturer: TI

3V to 28V Input. 20A Synchronous Step Down Controller with DCAP? Mode, 340kHz for Notebook Power 10-WSON -40 to 85

Partnumber Manufacturer Quantity Availability
TPS51217DSCR TI 7063 In Stock

Description and Introduction

3V to 28V Input. 20A Synchronous Step Down Controller with DCAP? Mode, 340kHz for Notebook Power 10-WSON -40 to 85 The TPS51217DSCR is a synchronous buck controller manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** 0.6V to 5.5V  
- **Switching Frequency:** Adjustable (250kHz to 1MHz)  
- **Output Current:** Up to 20A (with external MOSFETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin WSON (DSC)  

### **Descriptions:**  
The TPS51217DSCR 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, power-good indication, and overcurrent protection.

### **Features:**  
- **Adjustable Output Voltage:** Supports 0.6V to 5.5V via external resistor divider  
- **Pre-Bias Startup:** Prevents negative voltage on output during startup  
- **Programmable Soft-Start:** Reduces inrush current  
- **Power-Good (PG) Indicator:** Monitors output voltage status  
- **Overcurrent Protection (OCP):** Uses inductor DCR sensing or external resistor  
- **Adjustable Switching Frequency:** 250kHz to 1MHz for efficiency optimization  
- **Low Quiescent Current:** Improves light-load efficiency  
- **Thermal Shutdown:** Protects against overheating  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

3V to 28V Input. 20A Synchronous Step Down Controller with DCAP? Mode, 340kHz for Notebook Power 10-WSON -40 to 85

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