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TPS54329DDAR from TI,Texas Instruments

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TPS54329DDAR

Manufacturer: TI

4.5V to 18V Input, 3A Synchronous Step-Down Converter with D-CAP2 Mode 8-SO PowerPAD -40 to 85

Partnumber Manufacturer Quantity Availability
TPS54329DDAR TI 9514 In Stock

Description and Introduction

4.5V to 18V Input, 3A Synchronous Step-Down Converter with D-CAP2 Mode 8-SO PowerPAD -40 to 85 The TPS54329DDAR is a step-down (buck) converter manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Output Current:** Up to 3A continuous  
- **Switching Frequency:** 570 kHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin SO PowerPAD (DDAR)  

### **Descriptions:**  
The TPS54329DDAR is a synchronous buck converter with integrated high-side and low-side MOSFETs. It is designed for high efficiency and compact power supply solutions in industrial, automotive, and consumer applications.  

### **Features:**  
- **Integrated MOSFETs:** Reduces external component count.  
- **Wide Input Voltage Range:** Supports 4.5V to 28V.  
- **Adjustable Output Voltage:** Via external resistors.  
- **Fixed Switching Frequency:** 570 kHz for predictable EMI performance.  
- **Protection Features:** Overcurrent, thermal shutdown, and undervoltage lockout (UVLO).  
- **PowerPAD™ Package:** Enhances thermal performance.  

This information is sourced from the official Texas Instruments datasheet for the TPS54329DDAR.

Application Scenarios & Design Considerations

4.5V to 18V Input, 3A Synchronous Step-Down Converter with D-CAP2 Mode 8-SO PowerPAD -40 to 85

Alternative Part Number

  • LMR14030SDDAR --: TI SIMPLE SWITCHER buck converter with similar 4-40V input, 3A output, and SOIC-8 PowerPAD package; pin-compatible enough for many designs and a different series name.
  • MP2315GJ-Z --: 3A, 24V synchronous step-down converter in TSOT-23 package; widely used as a drop-in alternative for 5V/12V rails with comparable efficiency.
  • AP64350QSP-13 --: Automotive-grade 3.5A synchronous buck converter with wide input range and integrated MOSFETs; suitable replacement when higher current margin is needed.

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