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TPS54426PWPR from TI Pb-free,Texas Instruments

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TPS54426PWPR

Manufacturer: TI Pb-free, TI

4.5V to 18V Input, 4A Synchronous Step-Down Converter with Eco-Mode? 14-HTSSOP -40 to 85
Partnumber Manufacturer Quantity Availability
TPS54426PWPR TI Pb-free, TI 2815 In Stock

Description and Introduction

4.5V to 18V Input, 4A Synchronous Step-Down Converter with Eco-Mode? 14-HTSSOP -40 to 85 The TPS54426PWPR is a synchronous buck converter manufactured by Texas Instruments (TI). Below are the factual details from Ic-phoenix technical data files:  

### **Manufacturer:** Texas Instruments (TI)  
### **Pb-Free Specifications:**  
- The device is **lead-free (Pb-free)** and complies with RoHS (Restriction of Hazardous Substances) standards.  
- It is also **halogen-free** in accordance with TI's environmental policies.  

### **Descriptions:**  
- The TPS54426PWPR is a **4.5V to 18V input, 4A synchronous step-down converter** with integrated MOSFETs.  
- It operates at a **fixed switching frequency of 500 kHz** and supports **adjustable output voltage** from **0.76V to 5.5V**.  
- Designed for high efficiency and compact power solutions, it includes features like **soft-start, overcurrent protection, and thermal shutdown**.  

### **Features:**  
- **Input Voltage Range:** 4.5V to 18V  
- **Output Current:** Up to 4A  
- **Integrated 85mΩ (high-side) and 45mΩ (low-side) MOSFETs**  
- **Adjustable Output Voltage (0.76V to 5.5V)**  
- **Fixed 500 kHz Switching Frequency**  
- **Efficiency Optimization with D-CAP3™ Control Mode**  
- **Protections:** Overcurrent, Overtemperature, Undervoltage Lockout (UVLO)  
- **Thermal Shutdown**  
- **Soft-Start Function**  
- **Package:** 20-pin HTSSOP (PWPR) with PowerPAD™ for improved thermal performance  

This information is strictly based on the manufacturer's specifications.

Application Scenarios & Design Considerations

4.5V to 18V Input, 4A Synchronous Step-Down Converter with Eco-Mode? 14-HTSSOP -40 to 85

Alternative Part Number

  • LMR33630ADDA --: 3A synchronous buck converter in an HSOIC package with similar input voltage range and integrated FETs, offering comparable performance with a different series name.
  • AP64350SP-13 --: 3.5A synchronous buck converter in SO-8EP with wide input range, a good drop-in style alternative from a different vendor and series.
  • MP2145GD-Z --: 5A high-efficiency synchronous step-down converter in QFN, providing higher current headroom as a cross-vendor alternative.
  • LM2678T-ADJ --: Wide-input adjustable buck regulator from TI's SIMPLE SWITCHER family, similar step-down function and current capability, easy drop-in for many 5A-class designs.
  • MP1584EN --: Compact high-efficiency step-down converter with wide input range, commonly used as a lower-cost alternative in similar 3A-class buck applications.
  • AP6503 --: Integrated synchronous buck converter with comparable input voltage and output current ratings, suitable for similar point-of-load regulation designs.

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