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TPS40075RHLRG4 from TI/BB,Texas Instruments

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TPS40075RHLRG4

Manufacturer: TI/BB, TI

Wide Input Synchronous Buck Controller with Voltage Feed Forward 20-VQFN -40 to 85

Partnumber Manufacturer Quantity Availability
TPS40075RHLRG4 TI/BB, TI 4086 In Stock

Description and Introduction

Wide Input Synchronous Buck Controller with Voltage Feed Forward 20-VQFN -40 to 85 The TPS40075RHLRG4 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 (adjustable)  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Maximum Output Current:** Up to 20A (with external FETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 20-pin VQFN (RHL)  

### **Descriptions:**  
The TPS40075RHLRG4 is a high-performance synchronous buck controller designed for DC-DC step-down applications. It supports a wide input voltage range and provides precise output voltage regulation. The device is optimized for high efficiency and flexibility in power supply designs, making it suitable for industrial, telecom, and computing applications.  

### **Features:**  
- **Adjustable Output Voltage:** Uses an external resistor divider.  
- **Programmable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Integrated Gate Drivers:** Supports N-channel MOSFETs for synchronous rectification.  
- **Soft-Start & Pre-Biased Startup:** Prevents excessive inrush current.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Overcurrent & Overvoltage Protection:** Enhances system reliability.  
- **Thermal Shutdown:** Protects against overheating.  
- **Synchronous Rectification:** Improves efficiency compared to diode-based designs.  

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

Application Scenarios & Design Considerations

Wide Input Synchronous Buck Controller with Voltage Feed Forward 20-VQFN -40 to 85

Alternative Part Number

  • LM27402SQ/NOPB --: Synchronous buck controller with similar wide input voltage range and current-mode control, available in a small package; good functional substitute with different series naming.
  • ISL8117AFRZ --: Wide-input synchronous buck controller offering comparable gate drive and protection features, suitable as a cross-vendor alternative.
  • LTC3851AEGN#PBF --: Synchronous step-down controller with similar control architecture and voltage range, usable as an alternative from a different manufacturer and series.

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